Page 1 SERVICE MANUAL Color Inkjet Printer EPSON WF-C5790/WF-C5790a/ WF-C5710/ET-8700 WF-C5210/WF-C5290/ WF-C5290a CONFIDENTIAL SEMF17-010...
Page 2 The contents of this manual are subject to change without notice.  All efforts have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
Page 3 3. The power rating of this product is indicated on the serial number/rating plate. Never connect this product to the power source whose voltages is different from the rated voltage. 4. Replace malfunctioning components only with those components provided or approved by Epson; introduction of second-source ICs or other non-approved components may damage the product and void any applicable Epson warranty.
Page 4: 032154 Addition Communication Error
5. In order to protect sensitive microprocessors and circuitry, use static discharge equipment, such as anti-static wrist straps, when accessing internal components. 6. Do not tilt this product immediately after initial ink charge, especially after performing the ink charge several times. Doing so may cause ink to leak from the product because it may take some time for the waste ink pads to completely absorb ink wasted due to the ink charge.
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About This Manual This manual, consists of the following chapters, is intended for repair service personnel and includes information necessary for properly performing maintenance and servicing the product. CHAPTER 1.PRODUCT OUTLINE Describes the feature of the product. CHAPTER 2. PRODUCT SPECIFICATIONS Describes the basic specifications of the product.
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Symbols Used in this Manual Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action. Be aware of all symbols when they are used, and always read NOTE, CAUTION, or WARNING messages. Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, would result in injury or loss of life.
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Revision Status Revision Date of Issue Description February 28, 2018 First release Confidential...
Page 8: Table Of Contents
2.2 Printing Specifications ..................18 3.3.3 Paper Loading/Paper Feed mechanism ............. 47 2.3 Copying Specifications 3.3.3.1 Overview .................... 47 (WF-C5790/WF-C5790a/WF-C5710/ET-8700 only) ..........18 3.3.3.2 Paper Loading/Feed Path ..............48 3.3.3.3 Detail of Paper Loading/Feed Mechanism ......... 50 2.4 ADF Specifications 3.3.4 Ink Supply Mechanism ................
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EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.2.3 FAX Function Check Report ............178 6.2.4.3 Housing (WF-C5200 Series) (1) ............249 4.3.3 FAX Error Code ..................179 6.2.4.4 Housing (WF-C5200 Series) (2) ............254 4.3.3.1 Overview ..................179 6.2.4.5 Ink Supply Mechanism (1) ............... 263 4.3.3.2 Error code list ...................
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8.2.1 Lubrication Points and Instructions ............588 Chapter 9 Appendix 9.1 Connection Diagram ..................592 9.2 Part Names Conversion Table ................593 9.2.1 WF-C5790/WF-C5790a/WF-C5710/ET-8700 ........593 9.2.2 WF-C5210/WF-C5290/WF-C5290a ............594 9.2.3 Optional Cassette Unit ................595 9.3 Status Sheet Information .................. 596...
Page 11: Chapter 1 Product Outline
C H A P T E R PRODUCT OUTLINE Confidential...
Page 12: Product Summary
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 1.1 Product Summary  Economy and ecology  Low power consumption makes it an energy-saving product The features of this product are as follows: • TEC value 0.3 kWh • Power consumption during operation  Large capacity, yet compact WF-C5790/WF-C5790a/WF-C5710/ET-8700: Approx.
Page 13 C H A P T E R PRODUCT SPECIFICATIONS Confidential...
Page 14: Product Hardware Specifications
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 2.1 Product Hardware Specifications  Hardware specifications Specification Item WF-C5790/WF-C5790a/WF-C5710/ET-8700 WF-C5210/WF-C5290/WF-C5290a When the stacker is attached 425 mm (W) x 357 mm (H) x 535 mm (D) 425 mm (W) x 357 mm (H) x 535 mm (D)
Page 15 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Specification Item WF-C5790/WF-C5790a/WF-C5710/ET-8700 WF-C5210/WF-C5290/WF-C5290a Plain paper (A4/LTR) 100 sheets Output tray capacity Photo paper 20 sheets Postcard 20 sheets XL size different by each country different by each country L size different by each country Replacement Ink Packs...
Page 16 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Paper handling Paper weight Paper Paper types Paper sizes (grams per source square meter) Plain paper Legal, Letter, A4, B5, Executive, A5, A6, B6, User-defined sizes 64 to 90 g/m Postcard Postcard, Postcard for inkjet printers Bright White Ink Jet Paper 92.5 g/m...
Page 17 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Paper weight Paper Paper types Paper sizes (grams per source square meter) Plain paper Legal, Letter, A4, B5, Executive, A5, A6, B6, User-defined sizes 64 to 90 g/m Postcard Reply-paid card, Postcard, Postcard for inkjet printers...
Page 18: Printing Specifications
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 2.2 Printing Specifications 2.3 Copying Specifications (WF-C5790/WF-C5790a/WF-C5710/ET-8700 only) Item Specification Print method Serial inkjet Item Specification Paper ejection Face up Flatbed 300 dpi x 600 dpi, 600 dpi x 600 dpi Scan resolution Paper cassette 1...
Page 19: (Wf-C5790/Wf-C5790A/Wf-C5710/Et-8700 Only)
Copy density restriction for 2- Paper weight 64 to 95 g/m sided copy Sheet feeding capacity 50 sheets Margin with Boarder (3mm) (plain paper (hight-quality paper, recycled paper) 80 g/m Preview ADF durability 90,000 sheets Product Specifications ADF Specifications (WF-C5790/WF-C5790a/WF-C5710/ET-8700 only) Confidential...
Page 20: (Wf-C5790/Wf-C5790A/Wf-C5710/Et-8700 Only)
300 dpi color 0.85 msec/line 300 dpi monochrome 0.84 msec/line 600 dpi color 0.85 msec/line Scan speed 600 dpi monochrome 0.85 msec/line 1200 dpi color 1.58 msec/line 1200 dpi monochrome 1.58 msec/line Scanner durability 36,000 Product Specifications Scanner Specifications (WF-C5790/WF-C5790a/WF-C5710/ET-8700 only) Confidential...
Page 21: Network Specifications/Fax Specifications
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 2.7 Network Specifications/Fax Specifications  Fax specifications (WF-C5790/WF-C5790a/WF-C5710/ET-8700 only) Item Specification  Network specifications Standard analog telephone lines (PSTN), PBX (Private Support lines Branch Exchange) telephone systems Item Specification Standard: 8 pixels per mm x 3.85 lines per mm ...
Page 22 C H A P T E R CONFIGURATION AND OPERATING PRINCIPLES Confidential...
Page 23: Product Configuration (Name Of Each Part)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.1 Product Configuration (Name of Each Part) Table 3-1. Name of Each Part Name Description 3.1.1 WF-C5790/WF-C5790a/WF-C5710/ET-8700 ADF (Automatic Document Open when removing jammed originals in the Feeder) cover (F) ADF. Feeds originals straight into the printer. Slide to ADF edge guides the edges of the originals.
Page 24 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 3-2. Name of Each Part Name Description Feeds the paper straight into the printer. Edge guides Slide to the edges of the paper. Paper support Supports loaded paper. Prevents foreign substance from entering the Feeder guard printer.
Page 25 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 3-3. Name of Each Part Name Description Document cover Blocks external light while scanning. Scanner glass Place the originals. Operates the printer. Control panel You can change the angle of the control panel. External interface USB port Connects memory devices.
Page 26 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 3-4. Name of Each Part Name Description Scans placed originals. Open when removing Scanner unit (J) jammed paper inside the printer. Printhead Fires ink. Ink supply unit tray Sets an ink supply unit. Front cover (A) Open when replacing ink supply units.
Page 27 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 3-5. Name of Each Part Name Description LAN port Connects a LAN cable. USB port Connects a USB cable. LINE port Connects a phone line. EXT. port Connects external phone devices. AC inlet Connects the power cord.
Page 28 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 3-6. Name of Each Part Description Turns the printer on or off. Unplug the power cord when the power light is off. Pass a smart device over this mark to print or scan from the smart device directly.
Page 29: Wf-C5210/Wf-C5290/Wf-C5290A
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.1.2 WF-C5210/WF-C5290/WF-C5290a Table 3-7. Name of Each Part Name Description Operates the printer. Control panel You can change the angle of the control panel. Paper cassette 1 or Paper Loads paper. cassette (C1) Optional paper cassette unit.
Page 30 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 3-8. Name of Each Part Name Description Feeds the paper straight into the printer. Slide to Edge guides the edges of the paper. Paper support Supports loaded paper. Prevents foreign substance from entering the Feeder guard printer.
Page 31 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 3-9. Name of Each Part Name Description Open when removing jammed paper inside the Printer cover (J) printer. Printhead Fires ink. Ink supply unit tray Sets an ink supply unit. Front cover (A) Open when replacing ink supply units.
Page 32 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 3-10. Name of Each Part Name Description LAN port Connects a LAN cable. USB port Connects a USB cable. AC inlet Connects the power cord. Rear Cover (D) Open when removing jammed paper. Rear Cover (E) Open when removing jammed paper.
Page 33 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 3-11. Name of Each Part Description Pass a smart device over this mark to print from the smart device directly. Turns the printer on or off. Unplug the power cord when the power light is off.
Page 34: Motor, Sensor, Clutch, And Solenoid Specifications
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.2 Motor, Sensor, Clutch, and Solenoid Specifications This section shows the positions and specifications of the motors, sensors, and solenoids used in the product.  Printer main unit  Motors and solenoids (p. 35)  Ink detection and cover detection system sensors (p.
Page 35: Printer Main Unit (Motors And Solenoids)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.2.1 Printer Main Unit (Motors and solenoids) Table 3-12. Motors and solenoids Name Function Type DC motor CR Motor Used for CR operation driving. (42VDC±5%) Used for driving the feed mechanism.  Pickup Roller DC motor ASF Motor (42VDC±5%)
Page 36: Printer Main Unit (Ink Detection And Cover Detection System Sensors)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.2.2 Printer Main Unit (Ink detection and cover detection system sensors) Table 3-13. Ink detection and cover detection system sensors Name Function Type Transmissive Ink End Sensor Detects the end of the ink. photo-interrupter (3.3VDC±5%) Detects the installation state of the Rear...
Page 37: Printer Main Unit (Encoder Sensors And Pw Sensor)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.2.3 Printer Main Unit (Encoder sensors and PW sensor) Table 3-14. Encoder sensors and PW sensor Name Function Type Used for CR operation control (CR scale Transmissive CR Encoder photo-interrupter reading). (3.3VDC±5%) Transmissive Used for paper loading driving (ASF...
Page 38: Sors)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.2.4 Printer Main Unit (Paper feed and conveyance system sensors and other sensors) Table 3-15. Paper feed and conveyance system sensors and other sensors Name Function Type Transmissive Detects the paper leading edge and paper photo- PE Sensor trailing edge during paper feeding.
Page 39: Options (Motor And Sensors)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.2.5 Options (Motor and Sensors) Table 3-16. Options (Motor and Sensor) Name Function Type DC motor ASF Motor Used for driving the feed mechanism. (42VDC±5%) Used to raise the Paper Cassette Hop- DC motor Lift Motor (42VDC±5%)
Page 40: Scanner (Motor And Sensor)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.2.6 Scanner (Motor and Sensor) Table 3-17. Scanner (Motor and Sensor) Name Function Type DC motor SCN Motor Used for driving the scanner carriage. (42VDC±5%) Used to read the document on the scanner CIS imaging CIS Module glass.
Page 41: Adf (Motor And Sensor)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.2.7 ADF (Motor and Sensor) Table 3-18. ADF (Motor and Sensor) Name Function Type DC motor Used for driving the document feed mecha- ADF Motor (42VDC±5%) nism. Performs switching of the drive transmis- ADF Solenoid sion to the pickup roller.
Page 42: Overview
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3 Operating principles The nozzle arrangement of the TFP4 head mounted on this printer differs from that of the traditional printers. The nozzles of the same color are not arranged next to each other. 3.3.1 Printhead The nozzle layout as seen from behind the Printhead is shown below.
Page 43: Head Angular Mecha Adjustment
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.1.2 Head Angular Mecha Adjustment Row A Row H Row A Row H This section explains the head angular mecha adjustment for adjusting the inclination Misalignment of of the Printhead on the CR Unit physically. the nozzle...
Page 44: Carriage Mechanism
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.2 Carriage Mechanism Cross-section Main Frame CR Unit backside CR Encoder 3.3.2.1 Overview Sensor The carriage mechanism of this product consists of the CR Unit, CR Encoder Sensor, CR Scale, CR Motor, CR Timing Belt, and etc. The Carriage Mechanism is a key mechanism to ensure stable print quality because printing is performed by moving the CR Unit from side to side.
Page 45: Shifting Pg (Apg Mechanism)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.2.2 Shifting PG (APG Mechanism) 3.3.2.3 APG Lever actions This product's APG Mechanism shifts PG with the APG Cam mounted on the Carriage. The PF Motor drives the Planet Gear, operating the APG Lever, and this sets or resets the APG Lever.
Page 46: Pg Type
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.2.4 PG type This product has four types of PGs. The following describes the details of PGs. Each PG is determined by up to where the Carriage moves with reference to the APG Lever. PG set once is held until the next PG shift sequence.
Page 47: Paper Loading/Paper Feed Mechanism
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.3 Paper Loading/Paper Feed mechanism LD Roller 3.3.3.1 Overview Middle Roller The components of the paper loading mechanism and the loading method are as follows. Pickup Roller Mechanism Power source and control Function  Power source ...
Page 48: Paper Loading/Feed Path
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.3.2 Paper Loading/Feed Path Hopper FEEDING FROM THE PAPER CASSETTE 1 1. When you set Paper Cassette 1 in the printer, the Cassette Hopper is lifted up by the pickup mechanism provided in Paper Cassette 1. The paper set in...
Page 49 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A FEEDING FROM OPTIONAL CASSETTE (PAPER CASSETTE 2) 1. The drive of the Lift Motor is transferred to the optional hopper-up mechanism parts, which lifts up the Optional Cassette Hopper, and the paper set in Paper Cassette 2 comes in contact with the Optional Pickup Roller.
Page 50: Detail Of Paper Loading/Feed Mechanism
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.3.3 Detail of Paper Loading/Feed Mechanism Release rib Hopper Lock Hopper Stopper Cassette Hopper PRINTER MAIN UNIT Lift-up mechanism This mechanism lifts up the paper set in the paper cassette up to the paper pickup position by the pickup mechanism.
Page 51 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Front Feeding Mechanism Separation Roller The front feeding mechanism is composed of the Pick-up mechanism and the Pickup Roller intermediate feeding mechanism. One Way Clutch  Pick-up mechanism Pickup Drive Shaft B This mechanism picks up paper from the Cassette Assy and feeds it up to the intermediate feeding mechanism.
Page 52 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Intermediate feeding mechanism This mechanism feeds the paper fed from the Cassette Assy to the paper feed Duplex Gear Compound Gear 35.5, 26.4 Middle Roller mechanism. Planet Gear The intermediate feeding mechanism is driven by the ASF Motor.
Page 53 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Feeding Mechanism  Overview This mechanism feeds the paper set on the Hopper to the intermediate feeding mechanism. The retard separation method is used for paper separation. The rear feeding mechanism is driven by the ASF Motor.
Page 54 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Operation of the rear feeding mechanism When the LD Roller rotates once, the Change Lever engages with the hook on the ASF Clutch Gear and the roller is locked. Then, the ASF  Drive force control by the ASF Clutch Gear and Rear ASF Solenoid Assy...
Page 55 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Paper Feed Mechanism This mechanism feeds the paper fed from the intermediate feeding mechanism and ejects it. The paper feed mechanism is driven by the PF Motor's drive force. The drive force of the PF Motor is transmitted by the PF Timing Belt to the PF Roller and EJ roller to perform paper feeding before/after printing.
Page 56 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A OPTIONAL CASSETTE UNIT Lift-up mechanism (Optional cassette) This mechanism lifts the paper loaded on the Paper Cassette 2 up to the paper pickup position. This mechanism is driven by the drive force of the Lift Motor.
Page 57 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Mechanism (Optional cassette) This mechanism picks up paper from the Optional Cassette, and conveys it up to the intermediate feeding mechanism of the printer, and the same retard separation method as that for the Paper Cassette of the printer is adopted.
Page 58: Ink Supply Mechanism
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.4 Ink Supply Mechanism Decompression Ink path simplified Ventilation Valve Motor model 3.3.4.1 Overview The ink supply mechanism consists of the Ink Supply Unit that is composed of Air chamber Buffer the Ink Supply Tube, Diaphragm Pump ,Buffer, and Decompression Motor,...
Page 59: Ink Leak Detection Function
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.4.3 Ink leak detection function A sensor for detecting an ink leak is provided in this product in order to enable the quick detection of an ink leak when an ink leak occurs from the ink supply path due to an abnormality in the product.
Page 60: Inksystem Mechanism
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.5 Inksystem mechanism 3.3.5.1 Overview The inksystem mechanism of this product is composed of the Inksystem assy, Maintenance Box and Maintenance Box. The ink sucked by the Cap mechanism and Pump mechanism from the Printhead is drained via the Waste Ink Tube and into the Waste Ink Pad in the Maintenance Box.
Page 61: Operating Principles
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.5.2 Operating principles Venting valve Carriage lock lever Wiper OVERVIEW Pump motor The inksystem mechanism of this product employs the direct acting type consists of the carriage lock mechanism, wiper mechanism, capping mechanism, pump mechanism, and venting valve (valve mechanism).
Page 62 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Driving path is as follow. Pump Motor Symbol Parts name Symbol Parts name Combination Gear A Combination Gear A Intermittent Gear 1 Combination Gear B Combination Gear B Intermittent Gear 2 (with Pump Encoder Scale) Spur Gear...
Page 63 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A OPERATION OF EACH MECHANISM Pump Mechanism Pump Frame The pump mechanism sucks ink from the printhead at cleaning. The drive force from the Pump-drive Compound Gear is transmitted to the Pump Tube pump shaft via the Timing Plate. This Timing Plate allows the Pump-drive Compound Gear to start rotating at the different timing from the Pump Shaft.
Page 64 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cap Mechanism The cam surface (in red) of the wiper/cap-drive cam raises and The direct acting type is employed in the capping mechanism, where the Cap is lowers the cap drive lever. moved up and down by the Pump Motor and the printhead is capped at the suction for cleaning.
Page 65 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A CR Lock Mechanism Wiper Mechanism The tension of the compression spring at the bottom of the CR Lock moves up The rotation of the Wiper/cap-drive Cam drives the wiper mechanism. After the CR Lock. When the CR Lock Drive Lever pushes the CR Lock downward, release, if the Wiper Cam rotates, the drive is conveyed to Wiper Gears 1, 2, the CR Lock is released.
Page 66 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Venting Valve Before capping, the Valve Lever interferes with the Link Lever, therefore the Wiper/cap-drive Cam Venting Valve opens. (side of 0-digit side) The rotation of the Wiper/cap- During the capping sequence, the Valve Lever shaft moves along the Wiper/ drive Cam moves the salient of cap-drive Cam Slot, and the Valve Lever drops backwards.
Page 67: Scanner / Adf Mechanism
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.6 Scanner / ADF Mechanism 3.3.6.1 Scanner Mechanism SCN Unit The scanner mechanism consists of a CIS Module that scans documents and SCN Motor that drives the Scanner Carriage. The drive of the SCN Motor is transmitted to the Scanner Carriage by the Scanner Timing Belt, which moves the CIS Module, and scans the draft.
Page 68: Adf Mechanism
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 3.3.6.2 ADF Mechanism The ADF mechanism of this product uses a stationary image sensor that scans documents transported by the mechanism. It consists of ADF motor, ADF Encoder, ADF PE Sensor, ADF Doc Sensor, PF Roller, EJ Roller, Pickup Roller and etc.
Page 69 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A To prevent the next document from being fed while the previous document is The drive path from the ADF Motor to the Pickup Assy Drive Gear is as being reversed inside the ADF, the drive of the Pickup Assy drive gear is shut follows.
Page 70: Chapter 4 Troubleshooting
C H A P T E R TROUBLESHOOTING Confidential...
Page 71: Troubleshooting Workflow
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.1 Troubleshooting Workflow This flowchart is compiled based on the following contents. C H E C K P O I N T  Our experience regarding the quality problem. The workflow for troubleshooting is described below.
Page 72 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A p. 71 ADF failure? Copy an image by ADF  When a message is displayed See ADF/SCN section in 4.2.1 Normal Has the printing finished Errors (P. 73). without displaying an  When an error code is displayed...
Page 73: Troubleshooting Procedure
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.2 Troubleshooting procedure 4.2.1 Normal Errors Table 4-1. Normal errors Category Error name Error details Error solution Printer Printer fatal error Notifies that since an error has occurred in the printer mechanism, the Restart the printer.
Page 74 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Printer Memory insufficient error (number of Notifies that due to insufficient printer memory, not all set number of  Check the job and memory capacity.
Page 75 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Printer Ink recognition error Notifies that since the ink pack cannot be recognized, the ink must be  Install the correct ink pack. reset.  Remove and then insert the ink pack.
Page 76 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Scanner Scanner fatal error Notifies that since an error has occurred in the scanner mechanism, the  Turn on the power again. power must be turned on again.
Page 77 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Scan to Email Address not entered The user is asked to enter the destination. Enter the destination. DNS error The user is asked to check the DNS setting.
Page 78 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Scan to Email Insufficient memory Notifies that the execution memory is insufficient, and asks the user to Wait until other ongoing jobs are finished. check jobs that are running simultaneously.
Page 79 Wait for a while and then try again. Check the network connection. Service not registered Notifies that the printer is not registered in the Epson Connect service. Register the printer in the Epson Connect service. Service stopped Notifies that the Epson Connect service is set to Pause.
Page 80 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Scan to Computer NW rebooting Notifies that a re-connection to the network is in progress. Wait for a while and then try again. PC not selected The user is asked to select the destination.
Page 81 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Scan NW rebooting Notifies that a re-connection to the network is in progress. Wait for a while and then try again. (Scan to DCP No answer error Notifies that there has been no response from the server.
Page 82 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Setup Initialization selection to return to Do you want to initialize the copy settings? initial settings Copy settings Initialization selection to return to Do you want to initialize the scan settings?
Page 83 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Receive memory storage error Notifies that the memory is insufficient at the time of fax reception Check the % display of the Fax Top screen.
Page 84 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Sending incomplete Before communication start - Connection - Transmission  Establish the correct connection between “LINE” (reverse insertion) and “EXT”.  Press the [On-hook] button, or attach an external telephone, and make sure the dial tone is heard clearly and transmission is possible.
Page 85 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Communication error (folder) The user is asked to check the network connection.  Check the folder path.  Make sure the network cable is physically connected.
Page 86 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Cannot add destination Notifies that a destination cannot be added. The number of destinations must be less than the number of destinations that can be set.
Page 87 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-1. Normal errors Category Error name Error details Error solution Other function being executed Notifies that since another function is running, the requested fax Wait for a while and then try again. function cannot be executed.
Page 88: Printer Main Unit
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.2.2 Fatal Errors Table 4-2. Fatal Errors Troubleshooting Table 4-2. Fatal Errors Error code Error details procedure Troubleshooting 000033 CR load position reverse error P. 102 Error code Error details procedure 000040 PF PID driving time error P.
Page 89 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-2. Fatal Errors Table 4-2. Fatal Errors Troubleshooting Troubleshooting Error code Error details Error code Error details procedure procedure 000101 IS PID excess load error P. 117 032156 Addition communication error 6 000102 IS PID excess speed error P.
Page 90: Troubleshooting Procedure
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN ERROR (1)  Error name  ADF PID excess speed detection (error code: 100001)  Cause  State in which driven at unexpected speed (fast) for control.  Suspected cause  Mechanical load error (light) ...
Page 91: Adf Pid Reverse Detection
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN ERROR (2)  Error name  ADF PID reverse detection (error code: 100002)  ADF PID lock detection (error code: 100003)  ADF PID excess load (error code: 100005)  Cause  When rotated in the opposite direction to rotation direction (There was a sudden load error, and the ADF motor rotated in the opposite direction in reaction to it) ...
Page 92: Adf Pid Driving Time
Go to step 2 Update the firmware. Check whether or not the firmware is the latest version. Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 93: Hp Detection Failure
Replace the ADF/SCN Unit. Go to step 3 Does the error occur after replacing the ADF/SCN Unit? Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 94: Contact Detection Distance Exceeded
Check the FFC (thin) in ADF/SCN to make sure that it is not inserted damaged. obliquely, folded, or damaged. Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 95: Led Light Failure
Replace the ADF/SCN Unit. Go to step 3 Does the error occur after replacing the ADF/SCN Unit? Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 96: Paper Jam Error
Check the FFC (thick) in ADF/SCN that is connected to the main board to damaged. make sure that it is not inserted obliquely or disconnected. Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 97: Fb Pid Excess Speed Detection
Replace the ADF/SCN Unit. Go to step 3 Does the error occur after replacing the ADF/SCN Unit? Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 98: Fb Pid Reverse Detection
Replace the ADF/SCN Unit. Go to step 3 Does the error occur after replacing the ADF/SCN Unit? Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 99: 100070 Fb Pid Driving Time
Replace the ADF/SCN Unit. Go to step 4 Does the error occur after replacing the ADF/SCN Unit? Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 100: Calibration Error
Replace the ADF/SCN Unit. Go to step 3 Does the error occur after replacing the ADF/SCN Unit? Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 101: Cr Pid Driving Time Error
Check the CR Motor cable to make sure that there is no error (disconnection/ disconnected. contact failure). Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 102: Cr Pid Excess Load Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A CR ERROR (2)  Error name  CR PID excess load error (error code: 000021)  CR PID reverse error (error code: 000023)  CR PID lock error (error code: 000024)  CR load position excess load error (error code: 000031) ...
Page 103 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Step Check and measure Check the status of the CR Encoder FFC  Properly connect the CR Encoder FFC. Go to step 6  Replace the CR Encoder FFC (head FFC) in Check the CR Encoder FFC to make sure that it is not inserted obliquely or the case of damage.
Page 104: 000022 Cr Pid Excess Speed Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A CR ERROR (3)  Error name  CR PID excess speed error (error code: 000022)  CR load position excess speed error (error code: 000032)  Cause  State in which driven at unexpected speed (fast) for control.
Page 105: 000025 Cr Pid Underspeed Error
Perform CR Motor operation check Go to step 5 Replace the CR Motor. Does the CR Motor operate (rotate)? Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure Confidential...
Page 106: Pf Pid Driving Time Error
 The drive time of the motor exceeded the set time.  Suspected cause  Main Board failure  Troubleshooting Step Check and measure Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure Confidential...
Page 107: Pf Pid Excess Load Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PF ERROR (2)  Error name  PF PID excess load error (error code: 000041)  PF PID reverse error (error code: 000043)  PF PID lock error (error code: 000044)  PF load position excess load error (error code: 000051) ...
Page 108 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Step Check and measure Check the status of the PF Encoder and FFC  Replace the PF Encoder Board if parts are damaged. Check the PF Encoder to make sure that it is not damaged, and there is no ...
Page 109: Pf Pid Excess Speed Error
Check the PF gear train parts to make sure that there is no foreign object on or damage to them. Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting...
Page 110: Asf Pid Driving Time Error
Is the ASF Motor Cable (CN80) connected properly? (Refer to 592)  Replace the Printer Mechanism if damaged. Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 111: Asf Pid Excess Load Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF ERROR (2)  Error name  ASF PID excess load error (error code: 000061)  ASF PID reverse error (error code: 000063)  ASF PID lock error (error code: 000064)  ASF load position excess load error (error code: 000071) ...
Page 112 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Step Check and measure Visually check the ASF gear train parts.  Remove any foreign objects, if present. Go to step 6  Replace the Printer Mechanism if the ASF- Check the ASF gear train parts to make sure that there is no foreign object on related gear is damaged.
Page 113: Asf Pid Excess Speed Error
Go to step 3 is damaged, or deviates. Is the ASF gear train parts detached or broken? Replace the Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 114: 2Nd Asf Pid Driving Time Error
 Replace the Optional Cassette Unit in the (Refer to 592) case of damage of the motor cable. Replace the Optional Paper Cassette Main Board Assy. Contact the EPSON Service Department. Does the error occur after replacing the Optional Paper Cassette Main Board Assy? Troubleshooting Troubleshooting procedure...
Page 115: 2Nd Asf Pid Excess Load Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADDITIONAL ASF ERROR (2)  Error name  2nd ASF PID excess load error (error code: 000081)  2nd ASF PID reverse error (error code: 000083)  2nd ASF PID lock error (error code: 000084)  2nd ASF load position excess load error (error code: 000091) ...
Page 116: 2Nd Asf Pid Excess Speed Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADDITIONAL ASF ERROR (3)  Error name  2nd ASF PID excess speed error (error code: 000082)  2nd ASF load position excess speed error (error code: 000092)  Cause  State in which driven at unexpected speed (fast) for control.
Page 117: Is Pid Driving Time Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A IS ERROR (1) IS ERROR (2)  Error name  Error name  IS PID driving time error (error code: 000100)  IS PID excess load error (error code: 000101)  Cause  Cause  The IS Motor is continuously running for 30 seconds or more.
Page 118: Is Pid Excess Speed Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A IS ERROR (3) IS ERROR (4)  Error name  Error name  IS PID excess speed error (error code: 000102)  IS PID reverse error (error code: 000103)  Cause  Cause  State in which rotation speed of I/S Motor exceeds expected rotation ...
Page 119: Is Pid Lock Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A IS ERROR (5) IS ERROR (6)  Error name  Error name  IS PID lock error (error code: 000104)  DCP1 driving time error (error code: 001012)  Cause  Cause  The IS Motor is not running.
Page 120: Ink Leak Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A IS ERROR (7) Ink Leak Sensor  Error name  Ink leak error (error code: 034841)  Cause  There is ink or moisture in the Ink Leak Sensor.  Suspected cause  Mis-detection due to condensation ...
Page 121: Lft2 Pid Driving Time Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADDITIONAL LIFT ERROR (1)  Error name  LFT2 PID driving time error (error code: 000180)  Cause  The drive time of the Optional LIFT Motor has exceeded a fixed value.  Suspected cause  Optional Cassette ASF Motor cable failure ...
Page 122 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADDITIONAL LIFT ERROR (2)  Error name  LFT2 PID excess load error (error code: 000181)  LFT2 PID lock error (error code: 000184)  Cause  The load became unexpectedly high with hopper lift driving.
Page 123: Lft2 Pid Excess Speed Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADDITIONAL LIFT ERROR (3)  Error name  LFT2 PID excess speed error (error code: 000182)  Cause  State in which driven at unexpected speed (fast) for control.  Suspected cause  The Optional Lift Wheel Column components are damaged or a foreign object has entered ...
Page 124: Emergency Stop Error Caused By Cover Opening
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A EMERGENCY STOP ERROR CAUSED BY COVER OPENING HOME POSITION SEEK ERROR  Error name  Error name  Emergency stop error caused by cover opening  Home position seek error (error code: 34001) (error code: 030004) ...
Page 125: X-Hot Detect Error (Pre Printing)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PRINTHEAD ELECTRICAL ERROR(1) PRINTHEAD ELECTRICAL ERROR (2)  Error name  Error name  Transistor temperature error (error code: 031003)  X-Hot detect error (pre printing) (error code: 031001)  X-Hot detect error (after flushing) (error code: 031002) ...
Page 126 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PRINTHEAD ELECTRICAL ERROR (3) PRINTHEAD ELECTRICAL ERROR (4)  Error name  Error name  Printhead fuse blown error (error code: 031006)  VBS over-voltage error (error code: 031008)  Cause  Cause  Occurs if the Printhead fuse has blown.
Page 127: Hcs Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PRINTHEAD ELECTRICAL ERROR (5) ADDITIONAL CASSETTE FW ERROR (1)  Error name  Error name  HCS error (error code: 031011)  Over adding connection error (error code: 032001)  Cause  Cause  Occurs if communication is not possible between the print head and ...
Page 128: Addition Recovery Mode Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADDITIONAL CASSETTE FW ERROR (3) ADDITIONAL CASSETTE FW ERROR (4)  Error name  Error name  Addition contact state error 1 (Stop IR) (error code: 032051)  Addition recovery mode error (error code: 032101)  Addition contact state error 2 (except Stop_IR) ...
Page 129: Addition Communication Error
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADDITIONAL CASSETTE FW ERROR (5) CSIC ERROR (1)  Error name  Error name  Addition communication error 1 (error code:032151)  CRCM fuse blown error (error code: 033001)  Addition communication error 2 (error code:032152) ...
Page 130: Other Ink Device Error
(Since the settings are made by using the inspection program before  Troubleshooting shipment, resetting is not possible at the workplace.) Step Check and measure  Contact the EPSON Service Department. Visually check for the FFC of CRCM. Replace the Reconnect Main Board...
Page 131: Error Caused By Other Than Printer Device
Normally, does not occur at the workplace.  Troubleshooting  Troubleshooting  Cancel the fatal error in the scanner.  Contact the EPSON Service Department. FW ERROR (2)  Error name  Driver mismatch error (error code: 060002)  Cause ...
Page 132: Troubleshooting From Failure Symptom
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.2.3 Troubleshooting from Failure Symptom Table 4-3. Symptom List Symptom Reference Nozzles missing p. 133 Ink bleed p. 135 White or black bands p. 138 Print position offset in CR operation direction p. 141 Print position offset in feed direction p.
Page 133: Nozzles Missing
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A NOZZLES MISSING  Symptom Nozzles missing  Cause  Nozzles clogged Figure 4-4. Nozzles Clogged  Inksystem Assy dirty (Cap or Wiper dirty)  Air bubbles collected in ink tubes  Inksystem Assy failure  Printhead failure...
Page 134 (If there are parts where the color is unmistakably pale in the supply system ink tubes, air Go to step 4 bubbles may have collected.) Ink tube is correct condition? Replace the printhead. Contact the EPSON Service Department. Has the phenomenon (missing nozzle) been resolved? Troubleshooting Troubleshooting procedure Confidential...
Page 135: Ink Bleed
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A INK BLEED  Symptom Characters and images are distorted or blurred Figure 4-5. Ink bleed  Cause  ADF/SCN Unit failure  Miss-match the Printer setting and print paper.  Paper  Ink  PG adjustment value deviation ...
Page 136 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Troubleshooting Step Check and measure Check whether printing or copying  Occurs with copying only  Occurs with printing and copying. ADF/scanner trouble (P. Go to the step 2 Check whether the symptom occurs with printing or with copying.
Page 137 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Step Check and measure Check the Temperature and Humidity Sensor Make sure the Temperature and Humidity Sensor is operating properly. 1. Perform the Temperature and Humidity Sensor check from the adjustment program, and check the output value.
Page 138: White Or Black Bands
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A WHITE OR BLACK BANDS  Symptom White or black (dark) bands occur in the horizontal direction on images. Main scanning line (CR operation) direction Figure 4-6. White or black bands  Cause  Rear Unit installation failure ...
Page 139 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Troubleshooting Step Check and measure Check for the installation status of the Rear Unit. Reinstall the Rear Unit properly. Go to step 2 Check that the Rear Unit is installed properly. If the symptom continues to occur after performing the above, go to step 2.
Page 140 Check and measure Check whether or not skewing 1. Check that there is no paper skewing when feeding. Contact the EPSON Service Department. Replace the Printer Mechanism.(p. 490) 2. Is there a difference between the banding on the left and right (left black and right white, etc.)
Page 141: Print Position Offset In Cr Operation Direction
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PRINT POSITION OFFSET IN CR OPERATION DIRECTION  Symptom The image is offset in the main scanning direction (left and right margins are not equal) and the left or right edge of the image is cut off.
Page 142 Replace the CR Unit. (p. 417) Go to step 7 Has the phenomenon been improved upon? Replace the Main Board Assy. Replace the Main Board Assy. (p. 328) Contact the EPSON Service Department. Has the phenomenon been improved upon? Troubleshooting Troubleshooting procedure Confidential...
Page 143: Print Position Offset In Feed Direction
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PRINT POSITION OFFSET IN FEED DIRECTION  Symptom The image is offset in the sub scanning (feed) direction (top and bottom margins are not equal) and the top or bottom edge of the image is cut off.
Page 144 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Troubleshooting Step Check and measure Check the paper. Change the paper to suitable paper. Check that suitable paper (1. paper is not printed. 2. paper don't have punch holes,  When the phenomenon is improved etc.) is being used.
Page 145: Lines Not Smooth And Ruled-Line Deviation
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A LINES NOT SMOOTH AND RULED-LINE DEVIATION  Symptom  Printed lines are not smooth.  Lines printed in double in parts  Color deviation of part of mixed colors Figure 4-9. Ruled-Line Deviation And Lines Not Smooth ...
Page 146 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Troubleshooting Step Check and measure Check the paper. Change to the standard paper, or a paper without any folds or creases. Check that the paper surface is flat.  When the phenomenon is improved Is a paper with a flat surface being used?
Page 147 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Step Check and measure Check the PG Perform the PG Adjustment 559). Check the PG with the thickness gauge and check that it is within the specified value Go to step 7 If the symptom continues to occur after performing the PG range (1.55 ±0.10 mm).
Page 148: Print Smudges
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PRINT SMUDGES  Symptom Unexpected smudges can be seen somewhere (including back side) on printouts. Figure 4-10. Print smudges  Cause  Contamination of Scanner Glass  Contamination of Glass for ADF scanning  Curling/waviness of the paper used ...
Page 149 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Troubleshooting Step Check and measure Check whether printing or copying  Occurs with copying only.  Occurs with printing and copying. Refer to ADF/scanner trouble Go to step 2 Check whether the symptom occurs with printing or with copying.
Page 150 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Step Check and measure Visually check the Inksystem Assy.  When cap/wiper is dirty Clean the cap surface / wiper part 583). Perform the following checks to make sure there is no problem in the Inksystem Assy related components.
Page 151: Blank Printout (Blank Paper Ejected)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A BLANK PRINTOUT (BLANK PAPER EJECTED)  Symptom Blank paper is printed when printing. Blank paper Figure 4-11. Blank Printout (Blank Paper Ejected)  Cause  Double feeding  The paper that is being used is inappropriate.
Page 152 If the data does not arrive for 5 or more minutes after the print command, blank paper is Go to step 5 ejected due to a timeout error. If the symptom continues to occur, contact the EPSON Service Check whether or not blank print is occur by internal printing (status sheet, etc.). Department.
Page 153 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Step Check and measure Check the nozzle check pattern. Execute the head cleaning. Print nozzle check patterns and check whether there are nozzles missing or deflection. The standard cleaning strength depending on the number of missing nozzles is as described below.
Page 154: Adf/Scanner Trouble
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCANNER TROUBLE  Symptom Does not occur during printing (printing from a PC) and occurs only when copying from the ADF or scanning glass.  Cause  Glass dirty  Scanning sensor dirty  Feed path roller dirty/deteriorated ...
Page 155 Streaks in the image (If the symptom continues to occur after replacing the ADF/SCN Unit, [Measure] Clean the ADF scan glass surface. contact the EPSON Service Department.)  SCN Unit Check the contamination of the SCN glass surface. [Measure] Clean the SCN glass surface.
Page 156 ADF/SCN Unit 309). (If the symptom continues to occur after replacing the ADF/SCN Unit, contact the EPSON Service Department.) Feed defect 2 Check that there is no foreign object or damage in the ADF feed path. If a part is found to be damaged, etc. after cleaning the path, replace the corresponding part or ADF/SCN Unit 309).
Page 157: Paper Damaged Or Bent
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PAPER DAMAGED OR BENT  Symptom  Printed paper is damaged or bent FIGURE 4-12. PAPER DAMAGED OR BENT  Cause  Environment  Paper (curled, printed etc.)  Feed path foreign object  Star Wheel Assy failure ...
Page 158 If the symptom continues to occur after performing the PG range (1.55 ±0.10 mm). Service Department. adjustment, contact the EPSON Service Department. Is the PG within the standard value? If the symptom continues even in the rubbing avoidance mode 1. Reduce the print density (default is -20 for duplex, but -5 or -10 from that).
Page 159: Double Feeding
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DOUBLE FEEDING  Symptom  Multiple paper sheets are output at the same time. Figure 4-13. Double Feeding  Cause  Environment  Paper (curled, printed etc.)  Settings for the main unit  Retard roller is worn out or not installed correctly...
Page 160 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Troubleshooting Step Check and measure Check the operating environment. Recommend using in an appropriate environment. Check that the operating environment is within the specifications. Go to step 2 * Refer to 2.1 Product Hardware Specifications (P. 14) Has the phenomenon occurred? Check the paper.
Page 161: The Product Cannot Be Powered
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A THE PRODUCT CANNOT BE POWERED ON  Symptom The power does not turn on even if the Power button is pressed.  Cause  Panel Assy failure  Relay Cable (Panel to Main) connection failure, disconnection ...
Page 162: Fax Troubleshooting
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3 Fax Troubleshooting  Output Sample 4.3.1 Outline of the FAX Troubleshooting This material describes the information related to “Reports/Logs”, “Error Codes”, “Service Parameters”, “Basic information”, and “Troubleshooting” based on these information that can be used to solve the problems related to FAX.
Page 163 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Indications of destination number (in priority order) Title Report name Number of pages to be reported 1. Registered name in the contact list Sender PAGE (number of pages/total number of pages) (Send/Polling 2. Dialed telephone number...
Page 164: Protocol Trace
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.2.2 Protocol trace  Output Sample A detailed report for the previous sent or received fax. Settings are available for Manual Print, or Auto Print after communication by changing the RAM Edit. If a communication does not start until send/receive operation (when it did not enter Phase B after Phase A), the log is displayed as a blank space.
Page 165 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Receipt No. ~ Logs of the received faxes. Communication Description is same as Fax log. result Refer to Ability bit table of DIS (DTC) (P. 166) DIS(DTC) / DCS Ability bit table of DCS (P. 170)
Page 166 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Ability bit table of DIS (DTC) To refer to the bit allocation table and data, rearrange the following high order bits for every 2 bytes of data.  Example of DIS　 8020C28AC480D5838018 　FCS=80 　FIF=20 C2 8A C4 80 D5 83 80 18 bit no.
Page 167 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Example of DIS　 8020C28AC480D5838018 　FCS=80 　FIF=20 C2 8A C4 80 D5 83 80 18 bit no. bit no. DIS/DTC data Content On hold Uncompressed mode Error correction mode (ECM) Ability Set to 0 On hold On hold Encoding method (MMR T.6)
Page 168 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Example of DIS　 8020C28AC480D5838018 　FCS=80 　FIF=20 C2 8A C4 80 D5 83 80 18 bit no. bit no. DIS/DTC data Content Sub-address Ability Ability Password / sending identification ability (DIS) Password sending (DTC) Ability Preparation for data file transfer (polling)
Page 169 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Example of DIS　 8020C28AC480D5838018 　FCS=80 　FIF=20 C2 8A C4 80 D5 83 80 18 bit no. bit no. DIS/DTC data Content No sub-sampling (1:1:1) Nonstandard irradiation light Non-standard color gamut range North American(215.9 ×279.4 mm) letter capacity North American (215.9 ×...
Page 170 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Ability bit table of DCS To refer to the bit allocation table and data, rearrange the following high order bits for every 2 bytes of data.  Example of DCS 830042F844 FCS=83 FIF=00 42 F8 bit no.
Page 171 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Example of DCS 830042F844 FCS=83 FIF=00 42 F8 bit no. bit no. DIS/DTC data Content On hold Uncompressed mode Error correction mode (ECM) Frame size 0= 256 oct 1=-64 oct Frame size 256 oct On hold On hold Encoding method (MMR T.6)
Page 172 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Example of DCS 830042F844 FCS=83 FIF=00 42 F8 44 bit no. bit no. DIS/DTC data Content Send Sub-address Sending function identification sending Set to 0 On hold Binary file transfer (BFT) Document transfer mode (DTM)
Page 173 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Example of DCS 830042F844 FCS=83 FIF=00 42 F8 44 bit no. bit no. DIS/DTC data Content No sub-sampling (1:1:1) Nonstandard irradiation light Non-standard color gamut range North American(215.9 ×279.4 mm) letter capacity North American (215.9 × 355.6 mm) legal ability Coding mode (JBIG single layer sequential coding T.85) basic ability...
Page 174 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  How to use command/response log The following explains the T.30 Protocol commands/responses in fax log. Communication procedure can be checked in details. Table 4-4. Commands/responses log_ Sample Example (Type = Sending) Time Commands/ Direction Data...
Page 175 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-4. Commands/responses log_ Sample Example (Type = Sending) Time Commands/ Direction Data Description (10ms) responses name 03130 <- PPS-EOP BF2F0000FD Received a end of procedure signal (the 1st page finished without next page). FCF=BF2F?FIF=0000FD (00=1st page, 00=1st block, FD=254 frames) If the number of frame exceeds 256, separates the page with PPS-NULL to send.
Page 176 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-4. Commands/responses log_ Sample Example (Type = Sending) Time Commands/ Direction Data Description (10ms) responses name 03239 <- Received the 1st page of image signal. [33,600 bps(V.34) / MMR / A4 / 8x7.7 / 960(E:1)] Communication status is described within [ ].
Page 177 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Outline of the Command Response Log Table 4-5. Outline of the command response log Item Content Time (10ms) The time when sent/received the signal. The difference of both time means the time of the signal.
Page 178: Fax Function Check Report
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.2.3 FAX Function Check Report  Output Sample Self check of Fax function is available. Perform Fax Function Check to check the basic items of fax function and line connection.  Check Procedure [FAX] → [(Menu)] → [FAX Settings] → [Check FAX Connection] Manual = Perform the check, then select [Print] to print the result.
Page 179: Fax Error Code
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.3 FAX Error Code 4.3.3.2 Error code list Error Code 4.3.3.1 Overview Error description TX/RX Phase Result of There are 2 types of error codes; 1) job’s error codes that are displayed in job communication Job history report history, 2) Fax communication’s error codes that are shown in fax report.
Page 180 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Error Code Error Code Error description TX/RX Phase Error description TX/RX Phase Result of Result of communication Job history communication Job history report report Failure Receiver dose not have polling Failure Received a DCN after sending DIS sending capability.
Page 181 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Error Code Error description TX/RX Phase Result of communication Job history report Failure (ECM) No response or received a DCN after sending EOR Failure (ECM) No response or received a DCN after sending RR Failure (ECM) T5 timer timeout...
Page 182: Telephone Line Check Modes Related To Fax
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.4 Telephone Line Check Modes Related to FAX 1-3. After entering the ID number, press the [#] button, and make sure the following confirmation screen appears. In this product, the “Line Measurement Mode” is provided as a function for checking the telephone line status.
Page 183: Confirmation Method For Each Step Of Line Measurement Mode
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.4.2 Confirmation method for each step of Line Measurement Mode 2. Start the “Line Measurement Mode”. 2-1. With the [2][8] buttons, select [Line Measurement Mode], and then  After starting the Line Measurement Mode, perform C H E C K press the [#] button.
Page 184 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 1. No-line Voltage Check (Line Voltage Check when the Line is Not 2. Line Voltage (Onhook) Connected) (Line voltage check during on-hook when the line is connected) 1-1. The following screen appears after the “Line Measurement Mode” is 2-1.
Page 185 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4. Line Status (DT/BT) (Dial tone/busy tone status check) 3. Line Voltage (Offhook) (Line voltage check during off-hook when the line is connected) In this step, the two states of dial tone and busy tone are...
Page 186 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4-3. When the dial tone status check results appear as shown in the screen 4-4. Next, the following screen appears. below, press the [#] button. The dial tone shifts to busy tone, and make sure the numeric value shown on the screen changes.
Page 187 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 5. Line Status (IR) (Call signal status check) 6. EXT Voltage (Offhook) (Voltage check during off-hook when an external telephone is 5-1. Next, the “Line Status (IR)” screen shown below appears. connected) FAX Line Measurement 6-1. Next, the “EXT Voltage (Offhook)” screen shown below appears.
Page 188 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 7. List of check results 8. Saving the check results After the check is complete in all steps, the list table of check results shown  The data is saved in the USB memory as shown below.
Page 189 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Sample stored check data 8-2. When the screen shown below appears, the storage of check results in the USB memory is complete. 0.0 - 0.0 [V] No-Line FAX Line Measurement : 48.0 - 48.0 [V]...
Page 190: Fax Service Parameter
When the identification of the cause is difficult, check the symptom as accurately as possible to acquire setting information of the product, then 1). Enter “FAX Parameter Mode”. contact the EPSON Service Department.  Since the parameters are different from the products of 2). Start “FAX Parameter Settings”.
Page 191: Parameter Changing Procedure
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.5.2 Parameter changing procedure 1-4.Push the [#] button on confirmation screen, and confirm that “Authentication Mode” is started. 1. Star the “FAX Maintenance Mode”. Authentication Mode 1-1.From Power Off Condition, push the [#] button and [Power] button Run:[#] / Select:[2][8] until the message is displayed on Panel LCD.
Page 192 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 2. Start the “FAX Parameter Settings” 3. Select the changing item, and enter the setting number. 2-1. Select the “FAX Parameter Setting”, and push [#] button. Enter the number of changing item (3 digit), and push the [#] button.
Page 193 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Example of setting change in selection type parameter 3. The following complete message is displayed. when changing the parameter setting continuously, push the [#] button  Initial setting value of “DIAL TONE DETECT” is changing from [On] and move to the parameter select screen.
Page 194 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Example of setting change in input type parameter 3. The following complete message is displayed. when changing the parameter setting continuously, push the [#] button  Initial setting value of “TX SIGNAL LEVEL” is changing from and move to the parameter select screen.
Page 195: Fax Service Parameter Table
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.5.3 FAX Service Parameter Table Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark PARAMLIST PRINT RAMEDIT When set to ON, only the protocol monitor log of the communication error is PTCL LOG ON ERROR saved.
Page 196 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark IR DET FRQ MIN 11~21 Set the lower limit value / upper limit value of the ringing signal detection frequency. In the case of connection line PSTN, the initial value is detected in the range...
Page 197 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark Tone DIAL TYPE 10PPS Tone Linked with [Dial type] of fax setting 20PPS Used to register a fax number in the address book.
Page 198 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark In the case of an environment where a plurality of transmission jobs are always accumulated as execution waiting jobs, JOB INTERVAL TIME 1~65536 If you only send, set it to shorter.
Page 199 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark TONE DETECT LEVEL 28~43 -dBm TONE DET FRQ MIN 24~38 x10Hz TONE DET FRQ MAX 47~67 x10Hz Share with dial tone / busy tone.
Page 200 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark BUSY TONE DETECT Minimum time to recognize busy tone signal on. BT DET ON TIME MIN 5~65 x10ms Shorter than this time does not judge it to be a busy tone.
Page 201 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark 0 line If this setting value is exceeded during reception, judge that the error is over 64 line and turn off the line.
Page 202 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark Regardless of the paper size set in the apparatus, It is used when you want to specify the paper width to receive fax fixed.
Page 203 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark Process setting when the transmission document width differs from the recording width of the receiver at the time of transmission Reduction Send CutOut Send LEFT ...
Page 204 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark V.27ter Linking with communication mode of fax setting V.17 MODEM MODE V.34 V.29 V.34 requires ECM V.34 CODING MMR requires ECM It is linked with error correction (ECM) of fax setting.
Page 205 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark 2400 bps 4800 bps 7200 bps 9600 bps TX SPEED 14400 bps Setting transmission start speed in V17 / V29 / V27ter mode.
Page 206 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 4-6. FAX Service Parameter Table Parameter Name Setting Range Initial value Unit Remark 2400 bps 4800 bps 7200 bps 9600 bps 12000 bps 14400 bps 16800 bps V.34 RX SPEED 33600 bps Setting the reception start speed of V34 mode.
Page 207: Fax Related User Special Parameters
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.6 Fax related user special parameters. 4.3.6.1 Emergency ejection of fax reception document (FAX to PC) Using the PC FAX reception function, urgently remove the received original In this product, special parameters are prepared for the following users.
Page 208: Emergency Ejection Of Received Fax Documents (Fax To Memory)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.6.2 Emergency ejection of received fax documents (FAX to Memory) 3. When the following screen is displayed, execute setting of PC FAX reception from PC with USB or network connection with product. Using the USB memory, urgently remove fax received original file (.PDF) that can not be printed.
Page 209 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A FAX to Memory FAX to Memory Completed, Push [Power] Insert a Memory Card. 4. When the USB memory is detected, the following message is displayed, so press the [#] button to create the folder. (If this folder already exists in USB memory, this screen will be skipped)
Page 210: Fax Related Troubleshooting
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.7 Fax related troubleshooting  Troubleshoot basic step details Step 1: Accurately understand and identify trouble symptoms. 4.3.7.1 Fax troubleshooting basics In this step we check 5 points. To troubleshoot fax troubleshooting with the following steps.
Page 211 Investigate with reference to logs / reports as to whether each phase error of transmission / reception is somewhere.  Contact the EPSON Service Department as necessary Step 3: Resolve the problem If the cause can be identified, implement the countermeasure.
Page 212: Equipment Information Necessary For Fax Trouble Report
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.7.2 Equipment information necessary for fax trouble report. Report /Log name Print Procedure Remarks Usage history Necessary to know the If it is difficult to identify the cause of the problem, contact the service support “Settings” → “Printer Status/Print” → “Print...
Page 213: Troubleshooting From Fax Function Diagnosis
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.7.3 Troubleshooting from fax function diagnosis Diagnosis result Judgment contents Measure By conducting fax function diagnosis for diagnosis of trouble, it is possible to  When a splitter is connected, in case of separation, connect the diagnose basic items of fax function, line connection.
Page 214: Troubleshooting From Error Code
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4.3.7.4 Troubleshooting from error code Error code Judgment contents Measure display The trouble can be specified to some extent by the error code of the  Check if the telephone number is correct. communication management report.
Page 215 C H A P T E R SERVICE SUPPORT MODE Confidential...
Page 216: Service Support Mode
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 5.1 Service Support Mode 2. Enter ID number of Service Support Mode, and start the service support mode.  Enter “61544” when starting service support mode. C H E C K Service support mode is a service dedicated special mode that can be started by P O I N T ...
Page 217 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 2. Enter ID number of Service Support Mode, and start the service support FOR WF-C5210/WF-C5290/WF-C5290A mode. 1. Press and hold down the power button while pressing the [OK] button from  Enter “61544” when starting service support mode.
Page 218: Service Mode Menu Configuration
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 5.1.2 Service mode menu configuration Solution if enter and execute the wrong ID  When a different mode starts: Display Overview Usage situation If you enter the wrong ID and a different mode starts, Printer Adjustments can be made when the ADF/SCN Unit...
Page 219: Chapter 6 Disassembly/Assembly
C H A P T E R DISASSEMBLY/ASSEMBLY Confidential...
Page 220: Repair Work Overview
LEAK TESTER SHEET REAR 1684354 Note 1 : Some of the tools listed above are commercially available. Figure 6-1. Definition of Orientation of the Printer 2 : EPSON provides the tools listed with EPSON part code Disassembly/assembly Repair Work Overview Confidential...
Page 221: Disassembly/Reassembly Procedures
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2 Disassembly/Reassembly Procedures 6.2.1 Parts/Components Location Part/Component Part/Component Part/Component Part/Component Housing Left (p. 239) ASF Front Cover (p. 239) Paper Guide (p. 245) Cover Open Sensor (p. 239) ASF Cover (p. 245) Housing Rear (p. 245) Housing Upper (p.
Page 222 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Housing Left (p. 249) Printer Cover (p. 249) Housing Rear (p. 254) Rear Back Cover (p. 249) Cover Open Sensor (p. 254) Housing ASF (p. 249) ASF Cover (p. 254) Housing Right (p. 254) Housing Top (p.
Page 223 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Ink Pack Tray BK/ Ink Pack Tray CL Foot (p. 277) (p. 263) Temperature and Humidity Sensor (p. RIPS Front Cover (p. 263) 263) RIPS Unit (p. 263) Figure 6-4. Ink Supply Mechanism (1)
Page 224 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Decompression Pump Assy (p. 293) CSIC Board (p. 293) Ink Leak Sensor (p. 263) RIPS Cover Lock Lever (p. 277) Ink Sensor FFC (p. 263) CSIC Board FFC (p. 293) Ink Porous Pad (p. 277) RIPS Unit Lower (p.
Page 225 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component ADF Pad Assy (p. 318) ADF Roller Spring (p. 318) Hinge Assy (p. 309) ADF Document Support (p. 318) ADF Separate Spring (p. 318) ADF Paper Feed Roller Unit (p. 318) ADF/SCN Unit (p. 309) LD Frame Assy (p.
Page 226 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Relay Board Assy (p. 345) Main Board Assy (p. 328) Speaker Assy* (p. 345) USB Interface Board* (p. 328) Fax Assy* (p. 328) SD Memory (p. 328) Wireless Lan Module (p. 328) Power Supply Assy (p.
Page 227 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Relay Cable (Panel to Numpad) (p. Panel Assy (p. 358) Panel Board (p. 368) 358) Panel Board (p. 358) Numpad Board Assy (p. 358) Relay Cable (Panel to Main) (p. 368) Relay Cable (Panel to Main) (p. 358) Panel Assy (p.
Page 228 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Ink Eject Cover (p. 378) Porous Pad Cap Lower (p. 378) Maintenance Box Detect Sensor Assy (p. 378) Inksystem Unit (p. 378) Figure 6-9. Ink System Mechanism Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 229 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Head FFC Assy (p. 403) Printhead (p. 403) CR Unit (p. 417) Seal Joint Head (p. 389) CR Driven Pulley Assy (p. 417) CR Motor (p. 417) Head Screw Assy (p. 403) CR Scale (p.
Page 230 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Stacker Assy (p. 439) Paper Feed Sensor Unit (p. 439) Rear Unit (p. 453) Paper Cassette 1st Assy (p. 453) Rear ASF Assy (p. 458) Paper Guide Upper Assy (p. 468) Paper Guide Upper Assy Spring (p.
Page 231 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component PF Scale (p. 439) Photo Interrupter (p. 458) Pickup Roller Housing (p. 453) PE Assy (p. 468) PF Encoder Board (p. 439) Paper Feed Roller (p. 458) Retard Roller (p. 453) Rear Unit Detection Sensor (p. 439) Rear ASF Solenoid (p.
Page 232 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Printer Mechanism (p. 490) Figure 6-13. Printer Mechanism Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 233 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Optional Paper Cassette Left Cover (p. Optional Paper Cassette Right Cover E-ring (plastic) (p. 526) Separation Roller (p. 526) 534) (p. 534) Paper Feed Detector Lever (p. 526) Torsion Spring 0.9 (p. 526) Photo Interrupter (p.
Page 234 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Part/Component Part/Component Part/Component Part/Component Paper Cassette 2nd Assy (p. 546) Retard Roller (p. 546) Extension Spring (Retard Roller) (p. Lift Up Gear 30T (p. 546) 546) Lift Up Sector Gear 40T (p. 546) Figure 6-15. Optional Paper Cassette Unit (2)
Page 235: Preparation For Servicing
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.2 Preparation for servicing 6.2.2.2 Removing the Maintenance Box Disengage the hook, and remove the Ink Eject Cover. 6.2.2.1 Unlocking the CR Unit Remove the Maintenance Box. Remove the Housing Right. (WF-C5700 Series/ET-8700: 6.2.4.1 Housing (WF-C5700 Series/ET-8700) (1) 239), WF-C5200 Series: 6.2.4.4 Housing (WF-C5200 Series) (2) (p.
Page 236: Removing The Ink Pack
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.2.3 Removing the Ink Pack Remove the Ink Pack. Slide the Lock Lever in the direction of the arrow, then Open the RIPS Front Cover. Ink Pack Lock Lever RIPS Front Cover Ink Pack Tray Figure 6-20. Removing the Ink Pack Tray Figure 6-18.
Page 237: How To Read This Chapter
EPSON WF-C579 0/ WF-C5790a/ WF-C5710/ET-870 0 i s i 6.2.4.10 Electrical Components (1) OUTLINE EPSON WF-C579 0/ WF-C5790a/ WF-C5710/ET-870 0 i s i...
Page 238 If F1, F2, F3, and F16 are found, start from the F1 page, Example: The Guide for the Main Board Assy is “F”. then proceed in numerical order. 6.2.4.10 Electrical Components (1) EPSON WF-C579 0/ WF-C5790a/ WF-C5710/ET-870 0 i s i OUTLINE Rear Cover (Back)
Page 239: Repair Work Details
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4 Repair Work Details 6.2.4.1 Housing (WF-C5700 Series/ET-8700) (1) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection ASF Front Cover Housing Left Housing Right Housing Upper Cover Open Sensor Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 240 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start ASF Front Cover (→P. 241) Ink Eject Cover Housing Left (→P. 242) (→P. 243) Housing Right (→P. 242) Housing Left (→P. 243) Housing Upper (→P. 243) Cover Open Sensor (→P. 244) Disassembly/assembly Disassembly/Reassembly Procedures...
Page 241 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Housing Left Rear ASF Front Cover Hooks Housing Left Hooks Rear Cover (Back) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Open the ADF/SCN Unit.
Page 242 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Eject Cover Housing Right Rear Hook Housing Right Hooks Ink Eject Cover Tabs Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disengage the hook, and remove the Ink Eject Cover. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 243 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Left Housing Upper Rear Housing Hooks Upper Housing Left Hooks Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Remove the six screws (S4: ), then remove the Housing Upper. 2. Remove the three screws (S4: ) that secure the Housing Left.
Page 244 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cover Open Sensor Connector (CN609) Cable Cover Open Sensor Hook (long) Mechanical Contact Sensor Hook (short) The length of the two hooks on mechanical contact sensor differs. See the following and make sure to release the shorter hook first when removing the mechanical contact sensor.
Page 245: Housing (Wf-C5700 Series/Et-8700) (2)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.2 Housing (WF-C5700 Series/ET-8700) (2) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Rear Cover (Back) ASF Cover Paper Guide Housing Rear Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 246 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Cover (Back) (→P. 247) ASF Cover Paper Guide (→P. 247) (→P. 248) Paper Guide (→P. 248) Housing Rear (→P. 248) Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 247 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Cover (Back) ASF Cover Rear Cover (Back) ASF Cover Shaft and Shaft and groove groove Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Rear Housing Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 248 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Paper Guide Housing Rear Paper Guide Tab and Rear Housing groove Tab and groove Rear Housing 1. Release the two tabs of the Paper Guide from the grooves on the Rear Housing, then remove the Paper Guide.
Page 249: Housing (Wf-C5200 Series) (1)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.3 Housing (WF-C5200 Series) (1) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Rear Back Cover Rear Upper Cover Assy Housing ASF Printer Cover Housing Left Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 250 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Back Cover (→P. 251) Rear Upper Cover Assy (→P. 252) Housing ASF (→P. 252) Printer Cover (→P. 253) Housing Left (→P. 253) Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 251 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Back Cover Rear Back Cover Rear Upper Cover Assy Housing Right Housing Left Rear Back Rear Rear Back Cover Cover Dowel Dowel Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: ) that secure the Rear Upper Cover Assy.
Page 252 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Upper Cover Assy Housing ASF Housing ASF Rear Upper Cover Assy Housing ASF Tabs Printer Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the Rear Upper Cover Assy in the direction of the arrow. 1. Open the Printer Cover.
Page 253 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printer Cover Housing Left Rear Printer Cover Hooks Housing Left Hooks Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the Printer Cover upward. 1. Remove the five screws (S4: ) that secure the Housing Left. 2. Lift the Housing Left upward to release the two hooks each on the front side and rear side of the Housing Left, and then remove the Housing Left.
Page 254: Housing (Wf-C5200 Series) (2)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.4 Housing (WF-C5200 Series) (2) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection ASF Cover Paper Guide Housing Rear Housing Right Housing Top Cover Open Sensor Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 255 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Back Cover (→P. 256) Rear Upper Cover Assy (→P. 257) Housing ASF ASF Cover Paper Guide (→P. 259) (→P. 257) (→P. 258) Printer Cover Paper Guide (→P. 259) (→P. 258) Ink Eject Cover Housing Rear (→P.
Page 256 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Back Cover Rear Back Cover Rear Upper Cover Assy Housing Right Housing Left Rear Back Rear Rear Back Cover Cover Dowel Dowel Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: ) that secure the Rear Upper Cover Assy.
Page 257 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Upper Cover Assy ASF Cover ASF Cover Rear Upper Cover Assy Shaft Housing ASF Shaft Tabs Housing Rear 1. Remove the Rear Upper Cover Assy in the direction of the arrow. 1. Disengage two shafts of the ASF Cover from the holes of the Housing Rear, then remove the ASF Cover.
Page 258 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Paper Guide Housing Rear Tab and Groove Paper Guide Tab and Groove Housing Rear Housing Rear 1. Disengage two tabs of the Paper Guide from the grooves of the Housing Rear, and remove the Paper Guide.
Page 259 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing ASF Printer Cover Housing ASF Printer Cover Printer Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the Printer Cover. 1. Remove the Printer Cover upward. 2. Remove the six screws (S4: ), then remove the Housing ASF.
Page 260 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Eject Cover Housing Right Rear Hook Housing Right Hooks Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disengage the hook, and remove the Ink Eject Cover. 1. Remove the five screws (S4: ) that secure the Housing Right.
Page 261 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Left Housing Top Rear Hooks Housing Left Housing Top Hooks Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the five screws (S4: ) that secure the Housing Left. 1. Remove six screws (S4: ), then remove the Housing Top.
Page 262 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cover Open Sensor Connector (CN609) Cable Cover Open Sensor Hook (long) Mechanical Contact Sensor Hook (short) The length of the two hooks on mechanical contact sensor differs. See the following and make sure to release the shorter hook first when removing the mechanical contact sensor.
Page 263: Ink Supply Mechanism (1)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.5 Ink Supply Mechanism (1) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Ink Pack Tray BK/ Ink Pack Tray CL RIPS Front Cover RIPS Unit Temperature and Humidity Sensor Ink Leak Sensor...
Page 264 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Ink Discharge Preparation for (→P. 265) Dissembling Rear Cover (Back) Ink Pack Tray BK/ RIPS Front Cover (→P. 267) Ink Pack Tray CL (→P. 267) (→P. 266) ASF Front Cover (→P. 268)
Page 265 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Preparation of the Ink Discharge Preparation for Ink Discharge Dissembling Lever of the Cover Open Sensor Lock Lever RIPS Front Cover Ink Pack Tray CL Ink Pack Tray BK 1. Connect the AC cable to the printer, and turn the printer on.
Page 266 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Discharge Ink Pack Tray BK/ Ink Pack Tray CL Ink Pack Tray CL Ink Pack Tray BK Lock Lever RIPS Front Cover 1. Move the Lock Lever in the direction of the arrow, then open the RIPS Front Cover.
Page 267 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A RIPS Front Cover Rear Cover (Back) Rear Cover (Back) Dowel and Dowel and positioning hole positioning hole Lock Lever Shaft and hole Housing Right Housing Left RIPS Front Cover Shaft and hole Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Move the Lock Lever in the direction of the arrow, then open the RIPS Front Cover.
Page 268 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Ink Eject Cover Hook ASF Front Cover Rear Cover (Back) Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Disengage the hook, and remove the Ink Eject Cover.
Page 269 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Right Housing Left Rear Rear Hooks Housing Left Housing Right Hooks Hooks Tabs Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 270 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper Hinge Lower Cover Housing Hinge Lower Hinge Lower Upper Cover (Right) Cover (Left) Hinge Lower Cover Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the six screws (S4: ), then remove the Housing Upper.
Page 271 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Cable Guide PS Cable Guides Cable Guide Solenoid cable Cable Guide Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Release the all cable from the Cable Guide.
Page 272 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Peel off the CRCM FFC Plate Plate Double-sided tape CRCM FFC Sheet Double-sided tape Screw Type Double-sided tape CRCM FFC Double-sided tape C.B.SCREW-2.6X18-F.ZN-3C 1. Peel off the CRCM FFC. 1. Remove the two screws (S6: ), and remove the Plate.
Page 273 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Guide Cover RIPS Unit Relay Board CN55 CN10 CN22 CN54 CN11 Guide Cover CN12 CN30 CN31 Drawer Connector (CN2) Tabs Cover Open Sensor (CN22) Ink End Sensor (C/M) (CN30) Ink End Sensor (Bk/Y) (CN31) Ink Leak Sensor 1 (CN11) Ink Leak Sensor 2 (CN12)
Page 274 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A RIPS Unit RIPS Unit Rear Printer Hole RIPS Unit Ink Supply Tube Decompression Ferrite core Pump cable Joint Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Pull the Decompression Pump Cable out from the hole of the Frame Base, and release the As ink may leak in the following steps, prepare a waste cloth or the like in advance.
Page 275 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A RIPS Unit Temperature and Humidity Sensor Left Joint of ink tube PF scale Bottom of joint Cable Temperature and Humidity Sensor Printer Beware of sharp edges RIPS Unit Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the screw (S4: ) that secures the Temperature and Humidity Sensor.
Page 276 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Leak Sensor Ink Sensor FFC Ink Sensor FFC Hooks Double-sided tape Connector Ink Leak Sensor Ink Porous Pad Ink Sensor YMCBk Hooks Ferrite core 1. Disconnect the cable from the connector. 1. Disconnect the Ink Sensor FFC from the connector (CN1) on the Ink Sensor YMCBk.
Page 277: Ink Supply Mechanism (2)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.6 Ink Supply Mechanism (2) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Foot Ink Supply Unit RIPS Unit Lower Ink Tube Guide Holder RIPS Cover Lock Lever Ink Porous Pad Disassembly/assembly Disassembly/Reassembly Procedures...
Page 278 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Plate Ink Discharge Preparation for (→P. 285) (→P. 279) Dissembling Rear Cover (Back) Guide Cover (→P. 280) (→P. 286) ASF Front Cover RIPS Unit (→P. 281) (→P. 286) Ink Eject Cover Foot (→P.
Page 279 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Preparation of the Ink Discharge Preparation for Ink Discharge Dissembling Lever of the Cover Open Sensor Lock Lever RIPS Front Cover Ink Pack Tray CL Ink Pack Tray BK 1. Connect the AC cable to the printer, and turn the printer on.
Page 280 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Discharge Rear Cover (Back) Rear Cover (Back) Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 281 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Ink Eject Cover Hook ASF Front Cover Rear Cover (Back) Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Disengage the hook, and remove the Ink Eject Cover.
Page 282 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Right Housing Left Rear Rear Hooks Housing Left Housing Right Hooks Hooks Tabs Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 283 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper Hinge Lower Cover Housing Hinge Lower Hinge Lower Upper Cover (Right) Cover (Left) Hinge Lower Cover Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the six screws (S4: ), then remove the Housing Upper.
Page 284 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Cable Guide PS Cable Guides Cable Guide Solenoid cable Cable Guide Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Release the all cable from the Cable Guide.
Page 285 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Peel off the CRCM FFC Plate Plate Double-sided tape CRCM FFC Sheet Double-sided tape Screw Type Double-sided tape CRCM FFC Double-sided tape C.B.SCREW-2.6X18-F.ZN-3C 1. Peel off the CRCM FFC. 1. Remove the two screws (S6: ), and remove the Plate.
Page 286 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Guide Cover RIPS Unit Relay Board CN55 CN10 CN22 CN54 CN11 Guide Cover CN12 CN30 CN31 Drawer Connector (CN2) Tabs Cover Open Sensor (CN22) Ink End Sensor (C/M) (CN30) Ink End Sensor (Bk/Y) (CN31) Ink Leak Sensor 1 (CN11) Ink Leak Sensor 2 (CN12)
Page 287 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A RIPS Unit RIPS Unit Rear Printer Hole RIPS Unit Ink Supply Tube Decompression Ferrite core Pump cable Joint Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Pull the Decompression Pump Cable out from the hole of the Frame Base, and release the As ink may leak in the following steps, prepare a waste cloth or the like in advance.
Page 288 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A RIPS Unit Foot Left Joint of ink tube PF scale Foot Bottom of joint Ink Supply Unit Foot Foot Printer Foot Foot Beware of sharp edges RIPS Unit 1. Turn over the Ink Supply Unit, then remove the nine foot.
Page 289 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Supply Unit Ink Leak Sensor Cover open sensor cable Ink Supply Unit Cable Hooks Hook Slit Ink Supply Unit Connector Ink Leak Sensor Ink Porous Pad Hooks Ink Supply Housing Screw Type C.C.P-TITE-SCREW-3x8-F.ZN-3C 1. Release the cover open sensor cable from the slit and hook on the Ink Supply Housing.
Page 290 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A RIPS Unit Lower Ink Tube Guide Holder Tab and positioning hole Ink Tube Guide Holder Ink Tube Hooks Cable Relay Cable Screw Type RIPS Unit Lower C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Remove the Relay Cable from the RIPS Unit Lower.
Page 291 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Tube Guide Holder RIPS Cover Lock Lever RIPS Cover Lock Lever Holder Ink Tube Guide Marking Holder RIPS Housing Guide RIPS Cover Lock Lever Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: ), then remove the RIPS Cover Lock Lever Holder and RIPS Align the marking on the ink tubes with the guide of the Ink Tube Guide Holder Cover Lock Lever.
Page 292 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Porous Pad Ink Porous Pad RIPS Unit 1. Peel off the Ink Porous Pad from the RIPS Unit, then remove the Ink Porous Pad. Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 293: Ink Supply Mechanism (3)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.7 Ink Supply Mechanism (3) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Decompression Pump Assy CSIC Board FFC Ink Sensor YMCBk CSIC Board Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 294 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Plate Ink Discharge Preparation for (→P. 295) (→P. 301) Dissembling Rear Cover (Back) Guide Cover (→P. 296) (→P. 302) ASF Front Cover RIPS Unit (→P. 297) (→P. 302)  As for the procedure indicated by , refer to 6.2.4.4...
Page 295 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Preparation of the Ink Discharge Preparation for Ink Discharge Dissembling Lever of the Cover Open Sensor Lock Lever RIPS Front Cover Ink Pack Tray CL Ink Pack Tray BK 1. Connect the AC cable to the printer, and turn the printer on.
Page 296 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Discharge Rear Cover (Back) Rear Cover (Back) Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 297 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Ink Eject Cover Hook ASF Front Cover Rear Cover (Back) Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Disengage the hook, and remove the Ink Eject Cover.
Page 298 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Right Housing Left Rear Rear Hooks Housing Left Housing Right Hooks Hooks Tabs Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 299 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper Hinge Lower Cover Housing Hinge Lower Hinge Lower Upper Cover (Right) Cover (Left) Hinge Lower Cover Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the six screws (S4: ), then remove the Housing Upper.
Page 300 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Cable Guide PS Cable Guides Cable Guide Solenoid cable Cable Guide Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Release the all cable from the Cable Guide.
Page 301 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Peel off the CRCM FFC Plate Plate Double-sided tape CRCM FFC Sheet Double-sided tape Screw Type Double-sided tape CRCM FFC Double-sided tape C.B.SCREW-2.6X18-F.ZN-3C 1. Peel off the CRCM FFC. 1. Remove the two screws (S6: ), and remove the Plate.
Page 302 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Guide Cover RIPS Unit Relay Board CN55 CN10 CN22 CN54 CN11 Guide Cover CN12 CN30 CN31 Drawer Connector (CN2) Tabs Cover Open Sensor (CN22) Ink End Sensor (C/M) (CN30) Ink End Sensor (Bk/Y) (CN31) Ink Leak Sensor 1 (CN11) Ink Leak Sensor 2 (CN12)
Page 303 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A RIPS Unit RIPS Unit Rear Printer Hole RIPS Unit Ink Supply Tube Decompression Ferrite core Pump cable Joint Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Pull the Decompression Pump Cable out from the hole of the Frame Base, and release the As ink may leak in the following steps, prepare a waste cloth or the like in advance.
Page 304 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A RIPS Unit Ink Supply Unit Left Joint of ink tube PF scale Cover open sensor cable Bottom of joint Ink Supply Unit Cable Hook Slit Ink Supply Unit Printer Beware of sharp edges Ink Supply Housing...
Page 305 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Pressing Plate Upper Plate Ink Sensor FFC Pressing Plate Upper Plate Screw Type Screw Type C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Remove the two screws (S5: ), and remove the Pressing Plate. 1. Disconnect the Ink Sensor FFC from the connector (CN1) on the Ink Sensor YMCBk.
Page 306 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Decompression Pump Assy CSIC Board FFC CSIC Board Ink Sensor FFC (Black) YMCBk Joint CSIC Board FFC (Yellow) Guide (Tube) CSIC Board FFC (Magenta) CSIC Board FFC (Cyan) Tube Decompression Pump Guide (Cable) Ferrite core CSIC Board...
Page 307 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A CSIC Board FFC Ink Sensor YMCBk CSIC Board FFC (Black) CSIC Board FFC (Yellow) Ink Sensor YMCBk CSIC Board FFC (Magenta) CSIC Board FFC (Cyan) Screw Type C.B.S-TITE SCREW, 2.5X4,F/ZB-3C Double-sided tape 1. Disconnect the Cartridge Detection FFC from the connector on the Ink Sensor YMCBk.
Page 308 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cartridge Detection Sensor Board CSIC Board CSIC Sensor Board Connector CSIC Board CSIC Board Duct Pump Assy Hook CSIC Sensor Board Groove Dowel and positioning hole Duct Pump Assy Groove Hook 1. Disconnect the FFC from the connector while pushing the CSIC Sensor Board.
Page 309: Adf/Scn (1) (Wf-C5700 Series/Et-8700 Only)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.8 ADF/SCN (1) (WF-C5700 Series/ET-8700 only) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection ADF/SCN Unit Hinge Assy Document Mat ADF Front Cover Rear ADF Cover Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 310 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Cover (Back) (→P. 311) ASF Front Cover (→P. 311) Ink Eject Cover (→P. 312) Housing Right (→P. 312) Housing Left (→P. 313) Housing Upper (→P. 313) ADF/SCN Unit (→P. 314) Hinge Assy Open the ADF Unit (→P.
Page 311 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Cover (Back) ASF Front Cover Rear Cover (Back) ASF Front Cover Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Rear Cover (Back) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 312 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Eject Cover Housing Right Rear Hook Housing Right Hooks Ink Eject Cover Tabs Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disengage the hook, and remove the Ink Eject Cover. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 313 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Left Housing Upper Rear Housing Hooks Upper Housing Left Hooks Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Remove the six screws (S4: ), then remove the Housing Upper. 2. Remove the three screws (S4: ) that secure the Housing Left.
Page 314 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit ADF/SCN Unit Open Close ADF/SCN Unit 45 ° Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Grounding cable Screw Type Acetate tape C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Open the ADF/SCN Unit. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 315 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Hinge Assy Open the ADF Unit Hinge Assy (Left) Hinge Assy (Right) ADF lock lever ADF Unit Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Push the ADF lock lever in the direction of the arrow, and open the ADF Unit.
Page 316 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Document Mat ADF Front Cover ADF Front Cover Dowels Dowels Document Mat ADF Base Holes Holes ADF Front Cover Hooks Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the Document Mat. 1. Remove the two screws (S4: ) that secure the ADF Front Cover.
Page 317 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear ADF Cover Rear ADF Cover Bottom Rear ADF Cover Hook Dowels ADF Lower Cover Bottom ADF Right Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: ), then remove the ADF Lower Cover.
Page 318: Adf/Scn (2) (Wf-C5700 Series/Et-8700 Only)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.9 ADF/SCN (2) (WF-C5700 Series/ET-8700 only) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection ADF Paper Feed Roller Unit ADF Document Support ADF Pad Assy ADF Roller Spring ADF Separate Spring LD Frame Assy...
Page 319 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Cover (Back) (→P. 320) ASF Front Cover (→P. 320) Ink Eject Cover (→P. 321) Housing Right (→P. 321) Housing Left (→P. 322) Housing Upper (→P. 322) ADF/SCN Unit (→P. 323) ADF Paper Feed Roller Unit (→P.
Page 320 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Cover (Back) ASF Front Cover Rear Cover (Back) ASF Front Cover Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Rear Cover (Back) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 321 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Eject Cover Housing Right Rear Hook Housing Right Hooks Ink Eject Cover Tabs Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disengage the hook, and remove the Ink Eject Cover. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 322 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Left Housing Upper Rear Housing Hooks Upper Housing Left Hooks Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Remove the six screws (S4: ), then remove the Housing Upper. 2. Remove the three screws (S4: ) that secure the Housing Left.
Page 323 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit ADF/SCN Unit Open Close ADF/SCN Unit 45 ° Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Grounding cable Screw Type Acetate tape C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Open the ADF/SCN Unit. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 324 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF Paper Feed Roller Unit ADF Document Support ADF Document Support Flathead screwdriver Dowel (White) Dowel ADF Paper Feed Roller Unit Dowel Dowel Dowel 1. Open the ADF Paper Feed Roller Unit. 1. Disengage the two dowels of the ADF Document Support while bending it, then remove the ADF Document Support.
Page 325 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF Pad Assy ADF Roller Spring Fixing Plate ADF Upper Paper Guide ADF Cover ADF Separate Pad Hook Hook ADF Sub Cover Hooks Dowels Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disengage two hooks of the ADF Separate Pad.
Page 326 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF Roller Spring ADF Separate Spring ADF Upper Paper Guide Leg of spring ADF Roller Spring Groove and bearing ADF Separate Spring ADF Base Paper Feed Roller Shaft 1. Remove the ADF Separate Spring. 4. Pull the Paper Feed Roller Shaft in the direction of the arrow.
Page 327 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A LD Frame Assy Stopper LD Frame Assy ADF Upper Paper Guide 1. Lift the LD Frame Assy to release the stopper of the LD Frame Assy from the ADF Upper Paper Guide, then remove the LD Frame Assy.
Page 328: Electrical Components (1)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.10 Electrical Components (1) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Wireless Lan Module PDL Board Assy Fax Assy* USB Interface Board* SD Memory Main Board Assy * : WF-C5700 Series/ET-8700 only.
Page 329 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start  6.2.4.4 As for the procedure indicated by , refer to C H E C K Housing (WF-C5200 Series) (2) (p. 254) in the case P O I N T of the WF-C5200 Series, and remove the parts from the EEPROM Data Copy Rear Back Cover to the Housing Top.
Page 330 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Cover (Back) ASF Front Cover Rear Cover (Back) ASF Front Cover Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Rear Cover (Back) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 331 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Left Wireless Lan Module Rear CRCM FFC CRCM FFC Sheet Double-sided tape Double-sided Hooks tape Housing Left Main Board Assy Hooks CN31 Screw Type Wireless Lan Module C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Peel off the CRCM FFC from the CRCM FFC Sheet.
Page 332 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PDL Board Assy PDL Board Assy PDL Board Assy PDL Board Assy CN102 Shield Plate Screw Type Screw Type C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Disconnect the FFC from the connector (CN102) on the PDL Board Assy. 3. Remove the two screws (S5: ), then remove the PDL Board Assy from the Shield Plate.
Page 333 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Fax Assy Fax Assy Acetate tape Shield Plate Fax Assy Fax FFC Double-sided tape Fax Assy Acetate tape Screw Type C.B.S-TITE-SCREW-3x6-F.ZN-3C Screw Type C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Peel off the Fax FFC from the Fax Assy. 4. Remove the three screws (S5: ) that secure the Shield Plate.
Page 334 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A USB Interface Board SD Memory USB Interface Board Holder SD Memory Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: ), then remove the USB Interface Board. 1. Slide the Holder in the direction of the arrow.
Page 335 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Eject Cover Housing Right Rear Hook Housing Right Hooks Ink Eject Cover Tabs Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Disengage the hook, and remove the Ink Eject Cover. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 336 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper ADF/SCN Unit Open Close Housing Upper Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Screw Type Grounding cable C.B.P-TITE-SCREW-3x10-F.ZN-3C Acetate tape 1. Remove the six screws (S4: ), then remove the Housing Upper. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 337 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit Hinge Assy ADF/SCN Unit 45 ° Hinge Assy (Left) Hinge Assy (Right) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Open the ADF/SCN Unit. When removing the Main Board Assy on the way to the target part, remove the Hinge...
Page 338 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Hinge Lower Cover Cable Guide Hinge Lower Hinge Lower Cable Guide Cover (Right) Cover (Left) Hinge Lower Cover Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Release the all cable from the Cable Guide. When removing the Main Board Assy on the way to the target part, remove the Hinge...
Page 339 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Extension Spring 11.11 PS Cable Guides CR Scale Solenoid cable Cable Guide Extension Spring 11.11 Main Frame Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable 1. Remove the Extension Spring 11.11 from the CR Scale.
Page 340 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A CR Scale PS Ground Plate CR Encoder Full side Side view Home side Sensor Hook PS Ground Plate CR Scale Hook CR Unit CR Scale Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C Marking C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. At the full side, remove the CR Scale from hook on the frame.
Page 341 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy Main Board Assy Back Close Connector lock CN42 Open CN68 CN66 CN67 Double- Double- sided tape CRCM FFC Sheet sided tape CN55 CN44 CN110 CN80 CN74 CN53 CN609 CN33 CN77 CN75 CN73 CN72...
Page 342 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy Main Board Assy Back Inside CR motor cable Clamps Hook PE sensor cable Main Board Assy Clamp Relay FFC Ferrite core Fax FFC Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C PF Scale C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.S-TITE.P4.SCREW-3X8-F.ZN-3 Double-sided tape C.B.S-TITE-SCREW-3x6-F.ZN-3C 4.
Page 343 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy Wireless Lan Module CRCM FFC Main Board Assy CRCM FFC Sheet Double-sided tape CN52 Double-sided tape Main Board Assy PF Encoder FFC Double-sided tape CN31 Wireless Lan Module Secure the PF Encoder FFC with double-sided tape as shown above.
Page 344 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Main Board MB Shield Plate Lower MB Shield Plate Upper Screw Type C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Remove the seven screws (S5: ), then remove the MB Shield Plate Upper. 2. Remove the Main Board from the MB Shield Plate Lower.
Page 345: Electrical Components (2)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.11 Electrical Components (2) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Relay Board Assy Speaker Assy* Power Supply Assy * : WF-C5700 Series/ET-8700 only. Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 346 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Cover (Back)  As for the procedure indicated by , refer to 6.2.4.4 C H E C K (→P. 347) Housing (WF-C5200 Series) (2) (p. 254) in the case of P O I N T the WF-C5200 Series, and remove the parts from the Rear Back Cover to the Housing Top.
Page 347 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Cover (Back) ASF Front Cover Rear Cover (Back) ASF Front Cover Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Rear Cover (Back) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 348 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Left Relay Board Assy Rear CRCM FFC CRCM FFC Sheet Double-sided tape Hooks Double-sided tape Housing Left Hooks Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Peel off the CRCM FFC from the CRCM FFC Sheet.
Page 349 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Relay Board Assy Relay Board Assy Grounding cable Relay Board Relay Board Assy Shield Plate Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C 3. Disconnect the cables and FFCs from all connectors on the Relay Board Assy.
Page 350 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Eject Cover Housing Right Rear Hook Housing Right Hooks Ink Eject Cover Tabs Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disengage the hook, and remove the Ink Eject Cover. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 351 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper Speaker Assy Main Board Assy Housing Upper Cable Speaker Assy Speaker Holder Slit Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the six screws (S4: ), then remove the Housing Upper. 1. Disconnect the cable from the connector (CN3) on the Main Board Assy.
Page 352 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Cable Guide PS Cable Guides Cable Guide Solenoid cable Cable Guide Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Release the all cable from the Cable Guide.
Page 353 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit ADF/SCN Unit Open Close ADF/SCN Unit 45 ° Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Screw Type Grounding cable Acetate tape C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Open the ADF/SCN Unit. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 354 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Hinge Assy Hinge Lower Cover Hinge Lower Hinge Lower Hinge Assy (Left) Hinge Assy (Right) Cover (Right) Cover (Left) Hinge Lower Cover Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C When removing the Main Board Assy on the way to the target part, remove the Hinge...
Page 355 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear ASF Assy Rear ASF Assy Cable Guide Rear ASF Assy Solenoid cable Photo interrupter cable CN56 CN51 Relay Board Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disconnect the cables from the connectors (CN51, CN56) on the Relay Board.
Page 356 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PS Ground Plate Rear ASF Upper Guide Assy Hooks PS Ground Plate Rear Rear ASF Upper Guide Assy AC Inlet Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: , S5: ), then remove the PS Ground Plate.
Page 357 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Power Supply Assy PS Cable Ferrite Core Ferrite Core Slit Power Supply Assy Slit AC Cable Hook Slit Guide Hook Rea ASF Upper Guide Assy Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the screw (S4: ), then remove the Power Supply Assy.
Page 358: Electrical Components (3) (Wf-C5700 Series/Et-8700)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.12 Electrical Components (3) (WF-C5700 Series/ET-8700) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Panel Assy Numpad Board Assy Panel Board Relay Cable (Panel to Main) Relay Cable (Panel to Numpad) Disassembly/assembly Disassembly/Reassembly Procedures...
Page 359 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Cover (Back) (→P. 360) ASF Front Cover (→P. 360) Ink Eject Cover (→P. 361) Housing Right (→P. 361) Housing Left (→P. 362) Housing Upper (→P. 362) Cable Guide (→P. 363) Panel Assy (→P.
Page 360 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Cover (Back) ASF Front Cover Rear Cover (Back) ASF Front Cover Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Rear Cover (Back) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 361 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Eject Cover Housing Right Rear Hook Housing Right Hooks Ink Eject Cover Tabs Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disengage the hook, and remove the Ink Eject Cover. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 362 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Left Housing Upper Rear Housing Hooks Upper Housing Left Hooks Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Remove the six screws (S4: ), then remove the Housing Upper. 2. Remove the three screws (S4: ) that secure the Housing Left.
Page 363 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Cable Guide PS Cable Guides Cable Guide Solenoid cable Cable Guide Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Release the all cable from the Cable Guide.
Page 364 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Panel Assy Panel Assy Close Right Panel Holder Open Ferrite core Bearing Shaft Panel Assy Main Board Assy Double-sided tape CN42 Connector lock Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 4. Remove the two screws (S4: ), then remove the Right Panel Holder.
Page 365 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Panel Housing Numpad Board Assy Panel FFC Cover Cover Numpad Board Assy Panel Board Relay Cable Double-sided tape CN311 Panel Housing Hole Panel FFC Cover Relay Cable Cover Hooks Relay Cable Hook Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C...
Page 366 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Panel Board Relay Cable (Panel to Main) Relay Cable CN101 Connector lock Panel Board CN311 Panel Board CN302 Close Open Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disconnect the FFC from the connectors (CN302, CN311) on the Panel Board.
Page 367 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Relay Cable (Panel to Numpad) Numpad Board Assy Panel Board Relay Cable CN311 Double-sided tape CN102 Relay Cable Cover 1. Peel off the Relay Cable from the Relay Cable Cover. 2. Disconnect the Relay Cable from the connectors (CN102, CN311) on the Panel Board and Numpad Board Assy.
Page 368: Electrical Components (3) (Wf-C5200 Series)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.13 Electrical Components (3) (WF-C5200 Series) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Panel Assy Panel Board Relay Cable (Panel to Main) Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 369 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Back Cover (→P. 370) Rear Upper Cover Assy (→P. 371) Housing ASF (→P. 371) Printer Cover (→P. 372) Ink Eject Cover (→P. 372) Housing Right (→P. 373) Housing Left (→P. 373) Housing Top (→P.
Page 370 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Back Cover Rear Back Cover Rear Upper Cover Assy Housing Right Housing Left Rear Back Rear Rear Back Cover Cover Dowel Dowel Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: ) that secure the Rear Upper Cover Assy.
Page 371 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Upper Cover Assy Housing ASF Housing ASF Rear Upper Cover Assy Housing ASF Tabs Printer Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the Rear Upper Cover Assy in the direction of the arrow. 1. Open the Printer Cover.
Page 372 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printer Cover Ink Eject Cover Hook Printer Cover Ink Eject Cover 1. Remove the Printer Cover upward. 1. Disengage the hook, and remove the Ink Eject Cover. Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 373 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Right Housing Left Rear Rear Hooks Housing Left Housing Right Hooks Hooks Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the five screws (S4: ) that secure the Housing Right. 1. Remove the five screws (S4: ) that secure the Housing Left.
Page 374 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Top Cable Guide Cable Guide Housing Top Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove six screws (S4: ), then remove the Housing Top. 1. Release the all cable from the Cable Guide. 2. Remove the two screws (S4: ), and remove the Cable Guide.
Page 375 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Panel Assy Close PS Cable Guides Open Ferrite Core Solenoid cable Cable Guide Main Board Assy Guide Hook Double-sided tape Rear ASF sensor cable/ ASF motor cable Photo interrupter cable CN42 Connector lock The disassembling procedure for the Panel...
Page 376 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Panel Assy Panel Housing Panel FFC Cover Right Panel Holder Shaft Bearing Panel Assy Hook Panel FFC Cover Hook Panel Housing Hole Relay Cable Hooks Hooks Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the five screws (S4: ) that secure the Panel Housing.
Page 377 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Panel Board Relay Cable (Panel to Main) Relay Cable Connector lock Panel Board Panel Board Close Open Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disconnect the FFC from the connector (CN2) on the Panel Board. When disconnecting the Relay Cable, make sure to unlock the connector lock...
Page 378: Inksystem
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.14 Inksystem OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Ink Eject Cover Inksystem Unit Maintenance Box Detect Sensor Assy Porous Pad Cap Lower Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 379 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start  As for the procedure indicated by , refer to 6.2.4.4 Ink Eject Cover Rear Cover (Back) C H E C K Housing (WF-C5200 Series) (2) (p. 254) in the case of (→P.
Page 380 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Eject Cover Rear Cover (Back) Rear Cover (Back) Hook Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disengage the hook, and remove the Ink Eject Cover.
Page 381 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Ink Eject Cover Hook ASF Front Cover Rear Cover (Back) Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Disengage the hook, and remove the Ink Eject Cover.
Page 382 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Right Housing Left Rear Rear Hooks Housing Left Housing Right Hooks Hooks Tabs Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 383 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper ADF/SCN Unit Open Close Housing Upper Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Screw Type Grounding cable C.B.P-TITE-SCREW-3x10-F.ZN-3C Acetate tape 1. Remove the six screws (S4: ), then remove the Housing Upper. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 384 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit Slide the Wasted Ink Duct Holder Hook ADF/SCN Unit 45 ° Wasted Ink Duct Holder Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the screws (S4: ) that secure the Wasted Ink Duct Holder.
Page 385 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Inksystem Unit Inksystem Unit Grounding cable Wasted Ink Tube Tube clamp Relay connector Grounding cable Upper Cap Frame Wasted Ink Duct Holder Cable Screw Type C.B.S-TITE-SCREW-3x6-F.ZN-3C 2. Remove the three screws (S5: ), then remove the Upper Cap Frame.
Page 386 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Inksystem Unit Inksystem Unit Hook Pump Encoder Sensor Acetate tape Inksystem Unit Slit Upper Cap FFC Cover Upper Cap FFC Cover Guide Wasted Ink Tube Slit Tabs Inksystem Unit Screw Type Screw Type Pump motor cable C.B.P-TITE-SCREW-3x10-F.ZN-3C...
Page 387 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Maintenance Box Detect Sensor Assy Maintenance Box Detect Sensor Assy Hooks Connector Main Board Assy Maintenance Box Detect Sensor Holder Paper Feed Sensor Unit Main Frame Assy Screw Type Maintenance Box Detect Sensor C.B.P-TITE-SCREW-3x10-F.ZN-3C Double-sided tape 1.
Page 388 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Maintenance Box Detect Sensor Assy Porous Pad Cap Lower Maintenance Box Upper Cover Porous Pad Cap Lower Paper Feed Sensor Unit Maintenance Box Detect Sensor Assy 1. Remove the Porous Pad Cap Lower. 5. Remove the Maintenance Box Detect Sensor Assy from the maintenance box slot.
Page 389: Carriage Mechanism (1)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.15 Carriage Mechanism (1) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Extension Spring 11.11 CR Scale Ink Supply Tube Seal Joint Head Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 390 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start  As for the procedure indicated by , refer to 6.2.4.4 C H E C K Housing (WF-C5200 Series) (2) (p. 254) in the case of P O I N T the WF-C5200 Series, and remove the parts from the...
Page 391 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Preparation of the Ink Discharge Preparation for Ink Discharge Dissembling Lever of the Cover Open Sensor Lock Lever RIPS Front Cover Ink Pack Tray CL Ink Pack Tray BK 1. Connect the AC cable to the printer, and turn the printer on.
Page 392 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Discharge Rear Cover (Back) Rear Cover (Back) Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 393 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Ink Eject Cover Hook ASF Front Cover Rear Cover (Back) Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Disengage the hook, and remove the Ink Eject Cover.
Page 394 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Right Housing Left Rear Rear Hooks Housing Left Housing Right Hooks Hooks Tabs Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 395 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper ADF/SCN Unit Open Close Housing Upper Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Screw Type Grounding cable C.B.P-TITE-SCREW-3x10-F.ZN-3C Acetate tape 1. Remove the six screws (S4: ), then remove the Housing Upper. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 396 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit Extension Spring 11.11 ADF/SCN Unit 45 ° CR Scale Extension Spring 11.11 Main Frame Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the Extension Spring 11.11 from the CR Scale. 3. Open the ADF/SCN Unit. 2. Remove the Extension Spring 11.11 from the Main Frame.
Page 397 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A CR Scale Head Upper Cover Tabs and positioning holes CR Encoder Full side Side view Home side Sensor Hook Head Upper Cover CR Scale Hook CR Unit CR Scale Ink Tube Joint Cover Hook Screw Type C.B.P-TITE-SCREW-3x10-F.ZB-3C...
Page 398 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Plate Ink Supply Tube Plate Plate Ink Supply Tube Screw Type Screw Type C.B.SCREW-2.6X18-F.ZN-3C C.B.EP-TITE SCREW,2.6X17(B=14),F/ZN-3C 1. Remove the two screws (S6: ), and remove the Plate. In the following steps, ink may spill from the Ink Supply Tube. Prepare waste cloths or similar in advance.
Page 399 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Supply Tube Ink Supply Tube Tube Holder Ink Supply Tube Tube Clamp Hook 87.5 ± 1 mm Ink Supply Tube Joint Marking Hook Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 2. Remove the Ink Supply Tube from the Tube Clamp.
Page 400 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Supply Tube Ink Supply Tube  Types of Ink Leak Measurement Jig Rear side Right side Part Name Part Code Photo Remark 1684353 LEAK TESTER Smoked SHEET FRONT Face 10mm 1684354 LEAK TESTER Smoked SHEET REAR...
Page 401 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Supply Tube Ink Supply Tube Rear side LEAK TESTER SHEET REAR The smoked face is put toward the upside. LEAK TESTER SHEET FRONT Front side LEAK TESTER SHEET REAR LEAK TESTER SHEET FRONT 1. Set the ink leak measurement jig to the ink tube connector of the Print Head.
Page 402 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Seal Joint Head Ink Supply Tube Wiping area Printhead Connector Seal Joint Head 1. Remove the Seal Joint Head between the Ink Supply Tube and Printhead.  If ink is remained to ink tube joint part of Ink Supply Unit, Ink Leak Check can not perform correctly.
Page 403: Carriage Mechanism (2)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.16 Carriage Mechanism (2) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Head Screw Assy Printhead Head FFC Assy Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 404 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start  As for the procedure indicated by , refer to 6.2.4.4 C H E C K Housing (WF-C5200 Series) (2) (p. 254) in the case of P O I N T the WF-C5200 Series, and remove the parts from the...
Page 405 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Preparation of the Ink Discharge Preparation for Ink Discharge Dissembling Lever of the Cover Open Sensor Lock Lever RIPS Front Cover Ink Pack Tray CL Ink Pack Tray BK 1. Connect the AC cable to the printer, and turn the printer on.
Page 406 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Discharge Rear Cover (Back) Rear Cover (Back) Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 407 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Ink Eject Cover Hook ASF Front Cover Rear Cover (Back) Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Disengage the hook, and remove the Ink Eject Cover.
Page 408 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Right Housing Left Rear Rear Hooks Housing Left Housing Right Hooks Hooks Tabs Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 409 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper ADF/SCN Unit Open Close Housing Upper Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Screw Type Grounding cable C.B.P-TITE-SCREW-3x10-F.ZN-3C Acetate tape 1. Remove the six screws (S4: ), then remove the Housing Upper. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 410 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit Head Upper Cover Tabs and positioning holes Head Upper Cover ADF/SCN Unit 45 ° Ink Tube Joint Cover Hook Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZB-3C Film C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S7: ), and remove the Head Upper Cover.
Page 411 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Head Screw Assy Head Screw Assy Head Screw Plate Ink Supply Tube Head Screw Screw Type C.B.EP-TITE SCREW,2.6X17(B=14),F/ZN-3C 2. Remove the three Head Screw Assy. In the following steps, ink may spill from the Ink Supply Tube. Prepare waste cloths or similar in advance.
Page 412 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printhead Printhead Seal Joint Head Printhead Connectors Head FFC Assy Ink Tube Connector Double-sided tape Double-sided tape Wiping area Connectors Printhead Do not touch the nozzle surface of the Printhead. Make sure to clean the Ink tube joint part of Ink Supply Unit by using the Cleaning stick, because perform the Ink Leak Check correctly.
Page 413 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printhead Printhead  Types of Ink Leak Measurement Jig Rear side LEAK TESTER SHEET REAR Part Name Part Code Photo Remark 1684353 LEAK TESTER Smoked SHEET FRONT Face The smoked face is put toward the upside.
Page 414 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printhead Cable Guide Cable Guide Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Release the all cable from the Cable Guide. After ink charging, follow the instructions on the Ink leak check (p.563) to remove the LEAK TESTER SHEET FRONT/REAR, then perform Leak Check Judgement.
Page 415 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Head FFC Assy PS Cable Guides Head FFC Assy CR Unit CR Encoder Sensor Solenoid cable Cable Guide Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable Slit 1. Disconnect the Head FFC Assy from the connector on the CR Encoder Sensor.
Page 416 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Head FFC Assy Tabs Ferrite core CN68/CN66/CN67 Head FFC Assy Main Board Assy 3. Release the Head FFC Assy from the seven tabs on the Frame Base. 4. Disconnect the Head FFC Assy from the connectors (CN66, CN67, CN68) on the Main Board Assy.
Page 417: Carriage Mechanism (3)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.17 Carriage Mechanism (3) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection CR Driven Pulley Assy CR Unit CR Motor Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 418 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Cable Guide Printhead Ink Discharge Preparation for (→P. 425) (→P. 434) (→P. 419) Dissembling Rear Cover (Back) Extension Spring 11.11 Frame Plate (→P. 420) (→P. 426) (→P. 436) ASF Front Cover CR Scale Main Frame Assy (→P.
Page 419 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Preparation of the Ink Discharge Preparation for Ink Discharge Dissembling Lever of the Cover Open Sensor Lock Lever RIPS Front Cover Ink Pack Tray CL Ink Pack Tray BK 1. Connect the AC cable to the printer, and turn the printer on.
Page 420 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Discharge Rear Cover (Back) Rear Cover (Back) Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 421 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Ink Eject Cover Hook ASF Front Cover Rear Cover (Back) Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Disengage the hook, and remove the Ink Eject Cover.
Page 422 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Right Housing Left Rear Rear Hooks Housing Left Housing Right Hooks Hooks Tabs Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 423 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper ADF/SCN Unit Open Close Housing Upper Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Screw Type Grounding cable C.B.P-TITE-SCREW-3x10-F.ZN-3C Acetate tape 1. Remove the six screws (S4: ), then remove the Housing Upper. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 424 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit Hinge Assy ADF/SCN Unit 45 ° Hinge Assy (Left) Hinge Assy (Right) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Open the ADF/SCN Unit. When removing the Main Board Assy on the way to the target part, remove the Hinge...
Page 425 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Hinge Lower Cover Cable Guide Hinge Lower Hinge Lower Cable Guide Cover (Right) Cover (Left) Hinge Lower Cover Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Release the all cable from the Cable Guide. When removing the Main Board Assy on the way to the target part, remove the Hinge...
Page 426 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Extension Spring 11.11 PS Cable Guides CR Scale Solenoid cable Cable Guide Extension Spring 11.11 Main Frame Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable 1. Remove the Extension Spring 11.11 from the CR Scale.
Page 427 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A CR Scale PS Ground Plate CR Encoder Full side Side view Home side Sensor Hook PS Ground Plate CR Scale Hook CR Unit CR Scale Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C Marking C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. At the full side, remove the CR Scale from hook on the frame.
Page 428 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear ASF Assy Rear ASF Assy Cable Guide Rear ASF Assy Solenoid cable Photo interrupter cable CN56 CN51 Relay Board Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disconnect the cables from the connectors (CN51, CN56) on the Relay Board.
Page 429 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear ASF Upper Guide Assy CR Driven Pulley Assy Front CR Driven Pulley Assy PS Ground Plate CR Timing Belt Rear Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C Extension Spring C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Remove the two screws (S4: , S5: ), then remove the PS Ground Plate.
Page 430 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy Main Board Assy Back Close Connector lock CN42 Open CN68 CN66 CN67 Double- Double- sided tape CRCM FFC Sheet sided tape CN55 CN44 CN110 CN80 CN74 CN53 CN609 CN33 CN77 CN75 CN73 CN72...
Page 431 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy Main Board Assy Back Inside CR motor cable Clamps Hook PE sensor cable Main Board Assy Clamp Relay FFC Ferrite core Fax FFC Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C PF Scale C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.S-TITE.P4.SCREW-3X8-F.ZN-3 Double-sided tape C.B.S-TITE-SCREW-3x6-F.ZN-3C 4.
Page 432 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy Head Upper Cover Tabs and positioning holes Head Upper Cover Main Board Assy CN52 Ink Tube Joint Cover PF Encoder FFC Hook Double-sided tape Screw Type C.B.P-TITE-SCREW-3x10-F.ZB-3C Film C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S7: ), and remove the Head Upper Cover.
Page 433 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Head Screw Assy Head Screw Assy Head Screw Plate Ink Supply Tube Head Screw Screw Type C.B.EP-TITE SCREW,2.6X17(B=14),F/ZN-3C 2. Remove the three Head Screw Assy. In the following steps, ink may spill from the Ink Supply Tube. Prepare waste cloths or similar in advance.
Page 434 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printhead Printhead Seal Joint Head Printhead Connectors Head FFC Assy Ink Tube Connector Double-sided tape Double-sided tape Wiping area Connectors Printhead Do not touch the nozzle surface of the Printhead. Make sure to clean the Ink tube joint part of Ink Supply Unit by using the Cleaning stick, because perform the Ink Leak Check correctly.
Page 435 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printhead Printhead  Types of Ink Leak Measurement Jig Rear side LEAK TESTER SHEET REAR Part Name Part Code Photo Remark 1684353 LEAK TESTER Smoked SHEET FRONT Face The smoked face is put toward the upside.
Page 436 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printhead Frame Plate Frame Plate Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the screw (S4: ), and remove the Frame Plate. After ink charging, follow the instructions on the Ink leak check (p.563) to remove the LEAK TESTER SHEET FRONT/REAR, then perform Leak Check Judgement.
Page 437 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Frame Assy Main Frame Assy Ferrite core Rear Tabs Head FFC Assy Ferrite core CR motor cable Double-sided tape Main Frame Assy Double-sided tape Extension Spring Front CR Timing Belt Screw Type C.B.P-TITE-SCREW-3X16-FZN3C CR Driven Pulley Assy C.B.S-TITE-SCREW-3x6-F.ZN-3C...
Page 438 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A CR Unit CR Motor Cable holder Main Frame CR Unit Clamps CR Motor Cable Bottom Front Main Frame Assy Screw Type APG Slider C.P.SCREW,3X4,F/ZN-3C 1. Slide the CR Unit in the direction of the arrow to remove it from the Main Frame.
Page 439: Paper Feed Mechanism (1)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.18 Paper Feed Mechanism (1) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Stacker Assy PF Encoder Board PF Scale Star Wheel Unit Paper Feed Sensor Unit Rear Unit Detection Sensor Disassembly/assembly Disassembly/Reassembly Procedures...
Page 440 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Cover (Back) Stacker Assy (→P. 441) (→P. 441)  As for the procedure indicated by , refer to C H E C K ASF Front Cover 6.2.4.4 Housing (WF-C5200 Series) (2) (p. 254) P O I N T (→P.
Page 441 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Stacker Assy Rear Cover (Back) Rear Cover (Back) Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Stacker Assy Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the Stacker Assy in the direction of the arrow.
Page 442 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Housing Left Rear ASF Front Cover Hooks Housing Left Hooks Rear Cover (Back) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Open the ADF/SCN Unit.
Page 443 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PF Encoder Board PF Scale PF Scale PF Encoder Board PF Scale Positioning holes Screw Type Dowels C.B.S-TITE SCREW,2X8,F/ZN-3C 1. Remove the screw (S9: ) that secures the PF Encoder Board. 1. Peel off the PF Scale.
Page 444 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Eject Cover Housing Right Rear Hook Housing Right Hooks Ink Eject Cover Tabs Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disengage the hook, and remove the Ink Eject Cover. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 445 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper Star Wheel Unit CR Unit Housing Star Wheel Unit Upper Screw Type Grounding Spring C.B.P-TITE (S-P1)SCREW,3X12,F/ZN-3C Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the six screws (S4: ), then remove the Housing Upper. 1. Remove the Grounding Spring.
Page 446 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Cable Guide PS Cable Guides Cable Guide Solenoid cable Cable Guide Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Release the all cable from the Cable Guide.
Page 447 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit ADF/SCN Unit Open Close ADF/SCN Unit 45 ° Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Grounding cable Screw Type Acetate tape C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Open the ADF/SCN Unit. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 448 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Hinge Assy Hinge Lower Cover Hinge Lower Hinge Lower Hinge Assy (Left) Hinge Assy (Right) Cover (Right) Cover (Left) Hinge Lower Cover Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C When removing the Main Board Assy on the way to the target part, remove the Hinge...
Page 449 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear ASF Assy Rear ASF Assy Cable Guide Rear ASF Assy Solenoid cable Photo interrupter cable CN56 CN51 Relay Board Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disconnect the cables from the connectors (CN51, CN56) on the Relay Board.
Page 450 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PS Ground Plate Rear ASF Upper Guide Assy Hooks PS Ground Plate Rear Rear ASF Upper Guide Assy AC Inlet Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: , S5: ), then remove the PS Ground Plate.
Page 451 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Power Supply Assy Paper Feed Sensor Unit PS Cable Ferrite Core Ferrite Core Paper Feed Sensor Unit Slit Power Supply Assy Slit AC Cable Hook Slit Guide Hook Rea ASF Upper Guide Assy Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1.
Page 452 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Unit Detection Sensor Back Hook (long) Hook (short) Rear ASF Sensor Mechanical Contact Sensor Connector Hook Cable Rear ASF Upper Slit Guide Assy 1. Release the cable from the hook and slit on the Rear ASF Upper Guide Assy.
Page 453: Paper Feed Mechanism (2)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.19 Paper Feed Mechanism (2) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Paper Cassette 1st Assy Rear Unit Pickup Roller Housing Retard Extension Spring Retard Roller Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 454 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Unit Paper Cassette 1st Assy (→P. 455) (→P. 455) Feed Roller Cover Pickup Roller Housing (→P. 456) (→P. 456) Retard Extension Spring (→P. 457) Retard Roller (→P. 457) Disassembly/assembly Disassembly/Reassembly Procedures...
Page 455 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Paper Cassette 1st Assy Rear Unit Buttons Rear Unit Paper Cassette 1st Assy 1. Pull out the Paper Cassette 1st Assy. 1. Remove the Rear Unit in the direction of the arrow while pressing the buttons inward.
Page 456 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Pickup Roller Housing Feed Roller Cover Back Lever Pickup Roller Housing Lever Feed Roller Cover Lever Hooks Shafts 1. Rotate the Pickup Roller Housing in the direction of the arrow while pushing three levers. 1. Disengage two hooks of the Feed Roller Cover while pushing them inward, then remove the Feed Roller Cover.
Page 457 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Retard Extension Spring Retard Roller Shaft and bearing Retard Roller Shaft and bearing Retard Extension Spring 1. Remove the Retard Extension Spring. 1. Remove the Retard Roller. Attach the two bearings of the Retard Roller to the shafts of the Frame Base.
Page 458: Paper Feed Mechanism (3)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.20 Paper Feed Mechanism (3) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Rear ASF Assy Paper Feed Roller Photo Interrupter Rear ASF Solenoid Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 459 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear Cover (Back) (→P. 460) ASF Front Cover (→P. 460) Ink Eject Cover (→P. 461) Housing Right (→P. 461) Housing Left (→P. 462) Housing Upper (→P. 462)  As for the procedure indicated by , refer to 6.2.4.4...
Page 460 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Cover (Back) ASF Front Cover Rear Cover (Back) ASF Front Cover Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Rear Cover (Back) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 461 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Eject Cover Housing Right Rear Hook Housing Right Hooks Ink Eject Cover Tabs Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disengage the hook, and remove the Ink Eject Cover. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 462 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Left Housing Upper Rear Housing Hooks Upper Housing Left Hooks Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Remove the six screws (S4: ), then remove the Housing Upper. 2. Remove the three screws (S4: ) that secure the Housing Left.
Page 463 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit ADF/SCN Unit Open Close ADF/SCN Unit 45 ° Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Grounding cable Screw Type Acetate tape C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Open the ADF/SCN Unit. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 464 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Hinge Assy Hinge Lower Cover Hinge Lower Hinge Lower Hinge Assy (Left) Hinge Assy (Right) Cover (Right) Cover (Left) Hinge Lower Cover Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C When removing the Main Board Assy on the way to the target part, remove the Hinge...
Page 465 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear ASF Assy Rear ASF Assy Cable Guide Rear ASF Assy Solenoid cable Photo interrupter cable CN56 CN51 Relay Board Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Remove the four screws (S4: ), and remove the Rear ASF Assy.
Page 466 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Paper Feed Roller Plate Torsion Spring Paper Back Lever Rear ASF Assy Bottom Plate Shaft Rear ASF Assy Hook Photo Hook interrupter cable Extension Spring Acetate tape Hole Paper Feed Roller Shaft Shaft Grooves Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C...
Page 467 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Photo Interrupter Rear ASF Solenoid Bottom Cable Slit Slits Hook Photo Interrupter Cable Extension Spring Hooks Rear ASF Solenoid Hole Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disconnect the cable from the connector of the Photo Interrupter. 1. Release the solenoid cable from the hole, hook and six slits on the Rear ASF Assy.
Page 468: Paper Feed Mechanism (4)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.21 Paper Feed Mechanism (4) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection PE Assy Paper Guide Upper Assy Paper Guide Upper Assy Spring Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 469 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Rear ASF Assy Main Board Assy Ink Discharge Preparation for (→P. 476) (→P. 480) (→P. 470) Dissembling Rear Cover (Back) Cable Guide Head Upper Cover (→P. 483) (→P. 471) (→P. 477) ASF Front Cover Head Screw Assy Extension Spring 11.11...
Page 470 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Preparation of the Ink Discharge Preparation for Ink Discharge Dissembling Lever of the Cover Open Sensor Lock Lever RIPS Front Cover Ink Pack Tray CL Ink Pack Tray BK 1. Connect the AC cable to the printer, and turn the printer on.
Page 471 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Discharge Rear Cover (Back) Rear Cover (Back) Dowel and Dowel and positioning hole positioning hole Housing Right Housing Left Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ), then remove the Rear Cover (Back).
Page 472 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Ink Eject Cover Hook ASF Front Cover Rear Cover (Back) Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Disengage the hook, and remove the Ink Eject Cover.
Page 473 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Right Housing Left Rear Rear Hooks Housing Left Housing Right Hooks Hooks Tabs Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 474 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper ADF/SCN Unit Open Close Housing Upper Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Screw Type Grounding cable C.B.P-TITE-SCREW-3x10-F.ZN-3C Acetate tape 1. Remove the six screws (S4: ), then remove the Housing Upper. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 475 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit Hinge Assy ADF/SCN Unit 45 ° Hinge Assy (Left) Hinge Assy (Right) Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Open the ADF/SCN Unit. When removing the Main Board Assy on the way to the target part, remove the Hinge...
Page 476 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Hinge Lower Cover Rear ASF Assy Cable Guide Solenoid cable Hinge Lower Hinge Lower Cover (Right) Cover (Left) Hinge Lower Cover Photo interrupter cable CN56 CN51 Relay Board Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C When removing the Main Board Assy on the way to the target part, remove the Hinge 1.
Page 477 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear ASF Assy Cable Guide Rear ASF Assy Cable Guide Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Remove the four screws (S4: ), and remove the Rear ASF Assy. 1. Release the all cable from the Cable Guide.
Page 478 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Extension Spring 11.11 PS Cable Guides CR Scale Solenoid cable Cable Guide Extension Spring 11.11 Main Frame Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable 1. Remove the Extension Spring 11.11 from the CR Scale.
Page 479 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A CR Scale PS Ground Plate CR Encoder Full side Side view Home side Sensor Hook PS Ground Plate CR Scale Hook CR Unit CR Scale Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C Marking C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. At the full side, remove the CR Scale from hook on the frame.
Page 480 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear ASF Upper Guide Assy Main Board Assy Hooks Double- Double- sided tape CRCM FFC Sheet sided tape Rear Rear ASF Upper Guide Assy AC Inlet Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C Double- CRCM FFC Double- sided tape sided tape C.B.P-TITE-SCREW-3x10-F.ZN-3C...
Page 481 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy Main Board Assy Back Close Back Connector lock CR motor cable Clamps CN42 Open CN68 CN66 CN67 PE sensor cable CN55 CN44 CN110 Clamp Relay FFC Ferrite core CN80 CN74 CN53 CN609 CN33...
Page 482 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy Main Board Assy Inside Main Board Assy Hook CN52 Main Board Assy PF Encoder FFC Double-sided tape Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C PF Scale C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.S-TITE.P4.SCREW-3X8-F.ZN-3 C.B.S-TITE-SCREW-3x6-F.ZN-3C 8. Remove the following screws that secure the Main Board Assy.
Page 483 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Head Upper Cover Head Screw Assy Tabs and positioning holes Head Upper Cover Plate Ink Tube Joint Cover Ink Supply Tube Hook Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZB-3C Film C.B.EP-TITE SCREW,2.6X17(B=14),F/ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S7: ), and remove the Head Upper Cover.
Page 484 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Head Screw Assy Printhead Head Screw Printhead Connectors Head FFC Assy Double-sided tape Double-sided tape Connectors Head Screw Printhead 2. Remove the three Head Screw Assy. Do not touch the nozzle surface of the Printhead. Tighten the screws in order given above.
Page 485 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printhead Printhead  Types of Ink Leak Measurement Jig Part Name Part Code Photo Remark 1684353 LEAK TESTER Smoked SHEET FRONT Face Seal Joint Head 10mm Ink Tube Connector 1684354 LEAK TESTER Smoked SHEET REAR Face...
Page 486 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printhead Printhead Rear side LEAK TESTER SHEET REAR The smoked face is put toward the upside. LEAK TESTER SHEET FRONT Front side LEAK TESTER SHEET REAR LEAK TESTER SHEET FRONT 1. Set the ink leak measurement jig to the ink tube connector of the Print Head.
Page 487 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Frame Plate Main Frame Assy Rear Tabs Head FFC Assy Ferrite core Frame Plate Extension Spring Front CR Timing Belt Screw Type CR Driven Pulley Assy C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the screw (S4: ), and remove the Frame Plate.
Page 488 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Frame Assy PE Assy Ferrite core CR motor cable Double-sided tape Main Frame Assy Double-sided tape Front No gap Main Frame PE Assy Screw Type Screw Type C.B.P-TITE-SCREW-3X16-FZN3C Sensor Holder C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Remove the screw (S5: ), and remove the PE Assy from the Main Frame.
Page 489 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Paper Guide Upper Assy Paper Guide Upper Assy Spring Hook Hooks Main Frame Assy Main Frame Assy Paper Guide Upper Assy Paper Guide Upper Assy Spring Paper Guide Upper Assy 1. Disengage four hooks of the Paper Guide Upper Assy, and remove the Paper Guide Upper 1.
Page 490: Printer Mechanism
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.22 Printer Mechanism OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Printer Mechanism Disassembly/assembly Disassembly/Reassembly Procedures Confidential...
Page 491 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Ink Discharge Housing Upper Plate Preparation for (→P. 499) (→P. 505) (→P. 493) Dissembling Stacker Assy a (→P. 492) Panel Assy (→P. 494) (→P. 499) Rear Unit Wireless Lan Module (→P. 495) (→P.
Page 492 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A a (→P. 491) Ink Supply Tube Rear ASF Upper Guide Assy (→P. 506) (→P. 518) Head Screw Assy Extension Spring 11.11 (→P. 509) (→P. 519) Printhead CR Scale (→P. 510) (→P. 519) Cable Guide Main Board Assy (→P.
Page 493 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Preparation of the Ink Discharge Preparation for Ink Discharge Dissembling Lever of the Cover Open Sensor Lock Lever RIPS Front Cover Ink Pack Tray CL Ink Pack Tray BK 1. Connect the AC cable to the printer, and turn the printer on.
Page 494 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Discharge Stacker Assy Stacker Assy 1. Remove the Stacker Assy in the direction of the arrow. 1. Connect the PC and printer with USB cable. 2. Start the adjustment program. 3. Select the Ink Eject from items on the adjustment program.
Page 495 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Unit Paper Cassette 1st Assy Buttons Rear Unit Paper Cassette 1st Assy 1. Remove the Rear Unit in the direction of the arrow while pressing the buttons inward. 1. Pull out the Paper Cassette 1st Assy.
Page 496 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Optional Paper Cassette Rear Cover (Back) Rear Cover (Back) Positioning pins Dowel and Dowel and positioning hole positioning hole Dowel Housing Right Housing Left Dowel Screw Type Optional Paper Cassette Drawer Connector C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Lift the printer, then remove the Optional Paper Cassette.
Page 497 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ASF Front Cover Ink Eject Cover Hook ASF Front Cover Rear Cover (Back) Ink Eject Cover Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the four screws (S4: ) that secure the ASF Front Cover. 1. Disengage the hook, and remove the Ink Eject Cover.
Page 498 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Right Housing Left Rear Rear Hooks Housing Left Housing Right Hooks Hooks Tabs Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Open the ADF/SCN Unit. 1. Open the ADF/SCN Unit. 2. Remove the four screws (S4: ) that secure the Housing Right.
Page 499 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Housing Upper Panel Assy Close Housing Open Upper Ferrite core Main Board Assy Double-sided tape CN42 Connector lock Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the six screws (S4: ), then remove the Housing Upper. When disconnecting the FFC, make sure to unlock the connector lock beforehand.
Page 500 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Panel Assy Wireless Lan Module CRCM FFC CRCM FFC Sheet Right Panel Holder Double-sided tape Double-sided tape Bearing Shaft Panel Assy Main Board Assy CN31 Screw Type Wireless Lan Module C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Peel off the CRCM FFC from the CRCM FFC Sheet.
Page 501 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PDL Board Assy PDL Board Assy PDL Board Assy PDL Board Assy CN102 Shield Plate Screw Type Screw Type C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Disconnect the FFC from the connector (CN102) on the PDL Board Assy. 3. Remove the two screws (S5: ), then remove the PDL Board Assy from the Shield Plate.
Page 502 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Relay Board Assy Relay Board Assy Grounding cable CRCM FFC CRCM FFC Sheet Double-sided tape Double-sided tape Relay Board Assy Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Peel off the CRCM FFC from the CRCM FFC Sheet. 3. Disconnect the cables and FFCs from all connectors on the Relay Board Assy.
Page 503 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Relay Board Assy Speaker Assy Relay Board Main Board Assy Cable Speaker Assy Shield Plate Speaker Holder Slit Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Disconnect the cable from the connector (CN3) on the Main Board Assy.
Page 504 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Fax Assy Fax Assy Acetate tape Shield Plate Fax Assy Fax FFC Double-sided tape Fax Assy Acetate tape Screw Type C.B.S-TITE-SCREW-3x6-F.ZN-3C Screw Type C.B.S-TITE-SCREW-3x6-F.ZN-3C 1. Peel off the Fax FFC from the Fax Assy. 4. Remove the three screws (S5: ) that secure the Shield Plate.
Page 505 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Head Upper Cover Plate Tabs and positioning holes Head Upper Cover Plate Ink Tube Joint Cover Hook Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZB-3C Film C.B.SCREW-2.6X18-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S7: ), and remove the Head Upper Cover.
Page 506 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Supply Tube Ink Supply Tube Tube Holder Ink Supply Tube Tube Clamp Hook 87.5 ± 1 mm Plate Marking Hook Ink Supply Tube Screw Type C.B.EP-TITE SCREW,2.6X17(B=14),F/ZN-3C 2. Remove the Ink Supply Tube from the Tube Clamp.
Page 507 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Supply Tube Ink Supply Tube Rear side Right side Ink Supply Tube Bottom Joint Left side Front side Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 4. Remove the screw (S4: ). Make sure to clean the Ink tube joint part of Printhead by using the Cleaning stick, because perform the Ink Leak Check correctly.
Page 508 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Supply Tube Ink Supply Tube  Types of Ink Leak Measurement Jig Rear side LEAK TESTER SHEET REAR Part Name Part Code Photo Remark 1684353 LEAK TESTER Smoked SHEET FRONT Face The smoked face is put toward the upside.
Page 509 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Ink Supply Tube Head Screw Assy Plate Ink Supply Tube Screw Type C.B.EP-TITE SCREW,2.6X17(B=14),F/ZN-3C After ink charging, follow the instructions on the Ink leak check (p.563) to remove the In the following steps, ink may spill from the Ink Supply Tube. Prepare waste cloths or similar in advance.
Page 510 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Head Screw Assy Printhead Head Screw Printhead Connectors Head FFC Assy Double-sided tape Double-sided tape Connectors Head Screw Printhead 2. Remove the three Head Screw Assy. Do not touch the nozzle surface of the Printhead. Tighten the screws in order given above.
Page 511 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printhead Printhead  Types of Ink Leak Measurement Jig Part Name Part Code Photo Remark 1684353 LEAK TESTER Smoked SHEET FRONT Face Seal Joint Head 10mm Ink Tube Connector 1684354 LEAK TESTER Smoked SHEET REAR Face...
Page 512 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Printhead Printhead Rear side LEAK TESTER SHEET REAR The smoked face is put toward the upside. LEAK TESTER SHEET FRONT Front side LEAK TESTER SHEET REAR LEAK TESTER SHEET FRONT 1. Set the ink leak measurement jig to the ink tube connector of the Print Head.
Page 513 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Cable Guide Cable Guide PS Cable Guides Cable Guide Solenoid cable Cable Guide Guide Hook Rear ASF sensor cable/ ASF motor cable Photo interrupter cable Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Release the all cable from the Cable Guide.
Page 514 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Head FFC Assy Head FFC Assy Tabs Ferrite core CN68/CN66/CN67 Head FFC Assy Head FFC Assy CR Unit CR Encoder Sensor Main Board Assy Slit 1. Disconnect the Head FFC Assy from the connector on the CR Encoder Sensor.
Page 515 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A ADF/SCN Unit ADF/SCN Unit Open Close ADF/SCN Unit 45 ° Connector Lock CN801 Double-sided tape CN612 CN606 CN601 Grounding cable Screw Type Acetate tape C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Open the ADF/SCN Unit. When disconnecting the CISM FFC (CN601) from this connector, make sure to...
Page 516 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Hinge Assy Hinge Lower Cover Hinge Lower Hinge Lower Hinge Assy (Left) Hinge Assy (Right) Cover (Right) Cover (Left) Hinge Lower Cover Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C When removing the Main Board Assy on the way to the target part, remove the Hinge...
Page 517 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear ASF Assy Rear ASF Assy Cable Guide Rear ASF Assy Solenoid cable Photo interrupter cable CN56 CN51 Relay Board Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Disconnect the cables from the connectors (CN51, CN56) on the Relay Board.
Page 518 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A PS Ground Plate Rear ASF Upper Guide Assy Hooks PS Ground Plate Rear Rear ASF Upper Guide Assy AC Inlet Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: , S5: ), then remove the PS Ground Plate.
Page 519 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Extension Spring 11.11 CR Scale CR Encoder Full side Side view Home side Sensor Hook CR Scale CR Scale Hook Extension Spring 11.11 CR Unit CR Scale Main Frame Marking 1. Remove the Extension Spring 11.11 from the CR Scale.
Page 520 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy Main Board Assy Back Close Connector lock CN42 Open CN68 CN66 CN67 Double- Double- sided tape CRCM FFC Sheet sided tape CN55 CN44 CN110 CN80 CN74 CN53 CN609 CN33 CN77 CN75 CN73 CN72...
Page 521 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy Main Board Assy Back Inside CR motor cable Clamps Hook PE sensor cable Main Board Assy Clamp Relay FFC Ferrite core Fax FFC Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C PF Scale C.B.S-TITE-SCREW-3x6-F.ZN-3C C.B.S-TITE.P4.SCREW-3X8-F.ZN-3 Double-sided tape C.B.S-TITE-SCREW-3x6-F.ZN-3C 4.
Page 522 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Main Board Assy USB Interface Board Main Board Assy USB Interface Board CN52 PF Encoder FFC Double-sided tape Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: ), then remove the USB Interface Board. Secure the PF Encoder FFC with double-sided tape as shown above.
Page 523 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Guide Cover RIPS Unit Relay Board CN55 CN10 CN22 CN54 CN11 Guide Cover CN12 CN30 CN31 Drawer Connector (CN2) Tabs Cover Open Sensor (CN22) Ink End Sensor (C/M) (CN30) Ink End Sensor (Bk/Y) (CN31) Ink Leak Sensor 1 (CN11) Ink Leak Sensor 2 (CN12)
Page 524 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A RIPS Unit RIPS Unit Rear Printer Hole RIPS Unit Ink Supply Tube Decompression Ferrite core Pump cable Joint Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 3. Pull the Decompression Pump Cable out from the hole of the Frame Base, and release the As ink may leak in the following steps, prepare a waste cloth or the like in advance.
Page 525 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A RIPS Unit Printer Mechanism Left Joint of ink tube PF scale Bottom of joint Printer Mechanism Printer Beware of sharp edges RIPS Unit  When lifting the main body, you wear gloves. Because there is a danger of cutting hands with the sharp metal enclosed by red circles, ...
Page 526: Optional Paper Cassette Unit (1)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.23 Optional Paper Cassette Unit (1) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Rear Back Cover Separation Roller Paper Feed Detector Lever E-ring (plastic) Torsion Spring 0.9 Vertical Feed Roller Disassembly/assembly Disassembly/Reassembly Procedures...
Page 527 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Optional Paper Cassette Unit (→P. 528) Paper Cassette 2nd Assy (→P. 528) Rear Lower Cover Assy Separation Roller Paper Feed Detector (→P. 529) (→P. 530) Lever (→P. 531) Optional Paper Cassette E-ring (plastic) Rear Cover (→P.
Page 528 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Optional Paper Cassette Paper Cassette 2nd Assy Positioning pins Dowel Optional Paper Cassette Dowel Paper Cassette 2nd Assy Optional Paper Cassette Drawer Connector 1. Lift the printer, then remove the Optional Paper Cassette. 1. Pull out the Paper Cassette 2nd Assy, then remove the Paper Cassette 2nd Assy from the Optional Paper Cassette.
Page 529 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Lower Cover Assy Optional Paper Cassette Rear Cover Rear Rear Lower Cover Assy Rear Lower Cover Assy Holes Optional Paper Cassette Rear Cover Ribs 1. Pick the tab, and remove the Rear Lower Cover Assy in the direction of the arrow.
Page 530 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Optional Paper Cassette Rear Cover Separation Roller Rear Dowel A Dowel B Groove of shaft Separation Roller Separation Roller Tabs Groove of frame Dowel A Optional Paper Cassette Rear Cover Remove dowel A along the groove.
Page 531 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Paper Feed Detector Lever E-ring (plastic) Cassette Paper Left side Detection Lever Rear E-ring (plastic) Vertical Feed Roller Flag section Paper Feed Detector Lever Slit Vertical Feed Roller Optional Paper Cassette Rear Cover Leg of the Torsion Spring 0.9...
Page 532 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A One-way Gear Torsion Spring 0.9 Straight leg of Slit Left rear Torsion Spring Vertical Feed Roller Rear One-way Gear Bearing A Hole of the Hopper Drive Frame Torsion Spring 0.9 Vertical Feed Roller Hole of frame Bearing B 1.
Page 533 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Vertical Feed Roller Right rear Vertical Feed Roller Bearing B Hole of frame E-ring (plastic) 1. Remove the E-ring (plastic), then remove the Bearing B from the Vertical Feed Roller. 2. Remove the Vertical Feed Roller from the hole of the frame, then remove it.
Page 534: Optional Paper Cassette Unit (2)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.24 Optional Paper Cassette Unit (2) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Optional Paper Cassette Left Cover ASF Encoder Assy Optional Paper Cassette Right Cover Optional Paper Cassette Main Board Assy...
Page 535 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Optional Paper Cassette Middle Frame Drawer Connector (female) Unit (→P. 536) (→P. 544) (→P. 545) Paper Cassette 2nd Assy Photo Sensor (→P. 536) (→P. 544) Rear Lower Cover Assy (→P. 537) Optional Paper Cassette Rear Cover (→P.
Page 536 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Optional Paper Cassette Unit Paper Cassette 2nd Assy Positioning pins Dowel Optional Paper Cassette Dowel Paper Cassette 2nd Assy Optional Paper Cassette Drawer Connector 1. Lift the printer, then remove the Optional Paper Cassette. 1. Pull out the Paper Cassette 2nd Assy, then remove the Paper Cassette 2nd Assy from the Optional Paper Cassette.
Page 537 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Rear Lower Cover Assy Optional Paper Cassette Rear Cover Rear Rear Lower Cover Assy Rear Lower Cover Assy Holes Optional Paper Cassette Rear Cover Ribs 1. Pick the tab, and remove the Rear Lower Cover Assy in the direction of the arrow.
Page 538 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Optional Paper Cassette Rear Cover Optional Paper Cassette Left Cover Rear Optional Paper Cassette Left Cover Hooks Dowel A Dowel B Bottom Optional Paper Cassette Left Cover Light side Groove of frame Dowel A Optional Paper...
Page 539 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Optional Paper Cassette Left Cover E-ring (plastic) Left side Optional Paper Cassette Left Cover E-ring (plastic) Vertical Feed Roller Hooks 1. Remove the E-ring (plastic) from the left side of the Vertical Feed Roller. 3. Rotate in the direction of the arrow, remove the hooks (x2) on the rear side, and then remove the Optional Paper Cassette Left Cover.
Page 540 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A One-way Gear Hopper Drive Assy Upper Grounding Left rear Left side Plate Bearing Hopper Drive Assy Vertical Feed Roller One-way Gear The Upper Grounding Dowel and Plate and bearing must positioning hole be in contact Grounding Sheet...
Page 541 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Hopper Drive Assy ASF Encoder Assy Left side Bearing Left side ASF Encoder Assy Hopper Drive Assy ASF Encoder Assy Hole Dowels ASF Encoder Scale Dowel Hopper Drive Frame Screw Type Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C C.B.P-TITE-SCREW-2X6-F.ZN-3C C.B.S-TITE-SCREW-3x6-F.ZN-3C 3.
Page 542 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Optional Paper Cassette Right Cover Optional Paper Cassette Right Cover Optional Paper Cassette Right Cover Optional Paper Hooks Cassette Right Cover Hooks Bottom Right side Optional Paper Cassette Right Cover Hooks Screw Type C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the three screws (S4: ).
Page 543 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Optional Paper Cassette Main Board Assy Optional Paper Cassette Main Board Assy Jam Cover Detection ASF Encoder Cable (CN6) ASF Encoder Cable (CN6) Sensor Cable (CN5) Drawer Connector Left side (female) Cable (CN1) Drawer Connector Cable (CN2)
Page 544 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Middle Frame Photo Sensor Dowels and positioning holes Photo Sensor Middle Frame Photo sensor cable Screw Type Hook C.B.P-TITE-SCREW-3x10-F.ZN-3C 1. Remove the two screws (S4: ), then remove the Middle Frame. 1. Disengage four hooks using precision screw driver or similar tool, then remove the Photo Sensor from frame.
Page 545 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Drawer Connector (female) Hooks Connector of the Upper Drawer Connector Harness Drawer Connector (female) Hooks 1. Disengage the hooks (x2) by using a precision screwdriver, etc., and then remove the Drawer Connector (female) from the frame.
Page 546: Optional Paper Cassette Unit (3)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 6.2.4.25 Optional Paper Cassette Unit (3) OUTLINE Time Part or Component Guide Disassembly/ Adjustment/ Total Reassembly Inspection Paper Cassette 2nd Assy Extension Spring (Retard Roller) Retard Roller Lift Up Sector Gear 40T Lift Up Gear 30T...
Page 547 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A DISASSEMBLY FLOWCHART Start Start Paper Cassette 2nd Assy (→P. 548) Extension Spring (Retard Hopper Roller) (→P. 548) (→P. 549) Retard Roller Lift Up Sector Gear 40T (→P. 549) (→P. 550) Lift Up Gear 30T (→P. 550)
Page 548 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Paper Cassette 2nd Assy Extension Spring (Retard Roller) Paper Cassette 2nd Assy Retard Roller Extension Spring (Retard Roller) Hooks Optional Paper Cassette Unit Paper Cassette 2nd Assy 1. Pull the Paper Cassette 2nd Assy, then remove it from the Optional Paper Cassette Unit.
Page 549 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Retard Roller Hopper Paper Cassette 2nd Assy Dowel Dowel Retard Roller Paper Cassette 2nd Assy Hopper Hooks Shaft of the Paper Cassette 2nd Assy and notch of the Retard Roller Retard Roller 1. Disengage the hooks (x2) by pressing in the direction of the arrow, and then rotate the 1.
Page 550 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Lift Up Sector Gear 40T Lift Up Gear 30T Paper Cassette 2nd Assy Paper Cassette 2nd Assy OPT Lift Plate Lift Up Sector Gear 40T Lift Up Gear 30T Lift Up Gear 30T Bottom Lift Up Sector Gear 40T...
Page 551: Chapter 7 Adjustment
C H A P T E R ADJUSTMENT Confidential...
Page 552: Adjustment And Inspection Overview
Interface: USB Scale Leak tester sheet front 1684353 Leak tester sheet rear 1684354 Note 1 : “ ”: Commercially available ones are acceptable. 2 : EPSON provides the tools listed with EPSON part code. Adjustment Adjustment and Inspection Overview Confidential...
Page 553: Adjustment And Inspection List
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 7.1.3 Adjustment and Inspection List  Mechanical adjustments and inspections Adjustment name Purpose Adjustment procedure overview Tools Reference Adjustment PG Adjustment Set the clearance of the gap between the nozzle Place a thickness gauge in the specified location and then P.
Page 554 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Adjustment / Adjustment name Purpose Adjustment procedure overview Tools Reference inspection paper /feed tray CR motor heat Adjustment  protection control Program Measure product variations to set PF motor heat Adjustment  the appropriate correction values.
Page 555 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Adjustment / Adjustment name Purpose Adjustment procedure overview Tools Reference inspection paper /feed tray PW Adjustment  PW Adjustment  Paper type: Photo matte paper Use software to correct the offset  Size:A4 due to sensor characteristics and ...
Page 556 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Adjustment / Adjustment name Purpose Adjustment procedure overview Tools Reference inspection paper /feed tray Paper type: Plain paper Run this cleaning when dots missing Perform a head cleaning using the adjustment program, and Adjustment  Head Cleaning...
Page 557: Required Adjustments
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 7.2 Required Adjustments The following table lists the required adjustment items depending upon the parts being  Meaning of the marks used in the tables on the next pages are C H E C K repaired or replaced. Find the part(s) you removed or replaced, and check which as follows.
Page 558 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Table 7-1. Adjustment Correspondence Table Relevant parts Adjustment item 14 Ink Discharge ◎ ◎ ◎ 15 Ink Charge ◎ ◎ ◎ 16 Nozzle Noise Check ○ ○ ○ 17 Nozzle Rank Categorise ○ ○ ○ 18 Nozzle Detect Move Check ○...
Page 559: Adjustment And Inspection Details
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 7.3 Adjustment and Inspection Details  Preparing the thickness gauge  The Print Head of this printer has an integral structure of 7.3.1 Mechanical Adjustments and Inspections the Printhead Cover and Printhead nozzle surface. Therefore, if the thickness gauge touches the nozzle...
Page 560 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Application procedure of Teflon tape Clean the surfaces of the thickness gauge by using alcohol, and make sure no dirt or contamination remains on the surfaces. Apply Teflon tape on the thickness gauge as shown below.
Page 561 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  PG adjustment procedure Move the CR unit to the center of the printer. Place the thickness gauge (1.42 mm thickness gauge + 0.08 mm Teflon tape) When performing the PG adjustment, make sure of the following.
Page 562 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Move the CR unit to the thickness gauge and check whether or not the CR Unit touches the thickness gauge. • If does not touch the thickness gauge: Proceed to step 5. • If touches the thickness gauge: Perform the adjustment in the procedure below.
Page 563 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Check the ink adherence state on the cloudy surface of the jigs to determine INK LEAK CHECK whether or not there is an ink leak. An ink leak check is required when disconnecting the Ink Supply Tube from the ...
Page 564: Software Adjustments And Inspections
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 7.3.2 Software Adjustments and Inspections Turn the printer off, and replace the Main Board Assy with a new one. (For information on how to replace the Main Board Assy, see " Main Board Assy 7.3.2.1 Initial settings 328)")
Page 565 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Enter the product serial No. into the Product Serial No. (10 digits) entry field. INITIAL SETTINGS Enter the MAC address into the MAC Address entry field. Execute this function only when the EEPROM backup fails (backup C H E C K cannot be performed).
Page 566 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A HEAD ID INPUT INITIALIZE PF DETERIORATION OFFSET Start the Adjustment Program, and select “Head ID Input”. Start the Adjustment Program, and select “Initialize PF deterioration offset”. Press the Auto input button, and then enter the head ID.
Page 567: Adjustment (Mechanical)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 7.3.2.2 Adjustment (Mechanical) PE DETECTOR CONFIRMATION  Paper and feed tray MOTOR HEAT PROTECTION CONTROL  Paper size:  Target adjustment  Paper type: Plain paper  CR motor heat protection control  Paper feed tray: Paper Cassette 1st ...
Page 568: Adjustment (Print Adjustment By Mechanical)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 7.3.2.3 Adjustment (Print Adjustment by Mechanical)  Judgment Make adjustments so that the spacing between the pattern lines when the HEAD ANGULAR MECHA ADJUSTMENT adjustment value is “0” becomes equal.  Paper and feed tray ...
Page 569 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A   Procedure Flowchart Method of the Head Angular Adjustment (p. 568) Perform preparatory work. Start the adjustment Start the Adjustment Program, and select the “Head angular mecha adjustment”. Load specified paper into the specified paper feed tray.
Page 570 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Check the adjustment pattern, and forecast the adjustment value when the gap Turn the printer off, and turn the Ink System gear by hand as shown below to between the lines is equal. release the CR lock, moving the Carriage to the center position.
Page 571 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Tighten the screw(x3) and move the CR Assy to the home position.  When was carried out head angular mecha adjustment, make sure confirm the operation of the cap of the ink system by the Turn the printer on again, and print the adjustment pattern.
Page 572: Adjustment (Print Adjustment By Program)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 7.3.2.4 Adjustment (Print Adjustment by Program)  Judgment Select the pattern for which there is no gap and overlapping of the left and right PTS DELAY ADJUSTMENT patterns.  Paper and feed tray  Adjustment procedure ...
Page 573 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Judgment HEAD ANGULAR ADJUSTMENT From among the printed patterns, select the pattern where the above and below  Paper and feed tray lines are the straightest.  Paper size:  Adjustment procedure  Paper type: Plain paper Start the Adjustment Program, and select “Head angular adjustment”.
Page 574 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Judgment BI-D ADJUSTMENT Select the pattern for which there is no gap and overlapping of the left and right  Paper and feed tray patterns.  Paper size:  Adjustment procedure  Paper type: Plain paper Start the Adjustment Program, and select Bi-d adjustment”.
Page 575 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Judgment PAPER SKEW ADJUSTMENT From among the printed patterns, select the pattern where the above and below  Paper and feed tray lines are the straightest.  Paper size:  Adjustment procedure  Paper type: Plain Paper Start the Adjustment Program, and select “Paper Skew adjustment”.
Page 576 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Judgment PW / 1ST DOT ADJUSTMENT  PW adjustment:  Paper and feed tray From the stepped patterns printed on the bottom, top, left, and right edges of  the paper, select the numerical value that is 5 mm from the edge of the paper Paper size: for each of them.
Page 577 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Judgment PF/EJ ADJUSTMENT Select the numerical value of the pattern that has no overlapping of the upper and  Paper and feed tray lower blocks and the least white bands.  Paper size:  Adjustment procedure ...
Page 578 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Judgment PF BAND ADJUSTMENT Select the numerical value of the pattern that has no overlapping of the upper and  Paper and feed tray lower blocks and the least white bands.  Paper size: ...
Page 579: Adjustment (Program)
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 7.3.2.5 Adjustment (Program) NOZZLE NOISE CHECK  Adjustment procedure PE ADJUSTMENT Start the Adjustment Program, and select “Nozzle Noise Check”.  Paper and feed tray Press the Perform button to execute the “Nozzle Noise Check”. ...
Page 580 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A If you press the OK button, the nozzle check pattern is printed, and the NOZZLE RANK CATEGORIZE following message is displayed. This adjustment must be performed when all nozzles are in the Check the nozzle check pattern, make sure all nozzles are discharging normal discharge state.
Page 581 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A NOZZLE DETECT MOVE CHECK If the nozzle detection operation confirmation results are NG, a C H E C K nozzle that is not discharging properly may be present. Perform P O I N T This adjustment must be performed when all nozzles are in the head cleaning, make sure all nozzle are discharging properly, and normal discharge state.
Page 582: Chapter 8 Maintenance/Inspection
C H A P T E R MAINTENANCE/INSPECTION Confidential...
Page 583: Cleaning
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 8.1 Cleaning INKSYSTEM ASSY (WIPER AND CAP)  Tools Excepting the Print Head, there is no parts or components that need to be cleaned on a regular basis. Clean the printer as need arises. When cleaning, make sure to observe the ...
Page 584 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 4. Rotate the gear of the Inksystem Assy in the direction of the arrow to move 5. Clean the wiper and the cap part using the Polyester swab moistened with the wiper to wiping position. pure water.
Page 585 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A  Cleaning the Cap part 6. After cleaning the wiper and cap part is completed, rotate the gear of the Inksystem Assy in the direction of the arrow to retract the wiper. Clean the Cap surface by moving the Polyester swab in the direction of the arrows as shown in the figure below.
Page 586 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 7. Move the CR Unit to the home position manually. 8. Rotate the gear of the Inksystem Assy counterclockwise to lock the CR Unit. CR Unit Figure 8-6. Moving CR Unit Inksystem Assy If the CR Unit is moved to the home position without storing the Wiper, the nozzle of the Printhead may collide against the Wiper and damage it.
Page 587: Lubrication
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 8.2 Lubrication The type and amount of the grease used to lubricate the printer parts aredetermined based on the results of the internal evaluations. Therefore, refer to "8.2.1 Lubrication Points and Instructions" (p. 588) for the repairing procedures below, and apply the specified type and amount of the grease to the specified part of the printer mechanism.
Page 588: Lubrication Points And Instructions
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 8.2.1 Lubrication Points and Instructions <Lubrication Point> Application point EJ Roller EJ Roller <Lubrication Point> <Type> PF Roller PF Roller G-97 <Type> <Application Amount> G-97 Appropriate amount <Application Amount> <Remarks> 1 mm × 5 mm (3mg) Apply with injector.
Page 589 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A <Lubrication Point> <Lubrication Point> Main Frame CR Driven Pulley Contact point with CR Unit CR Driven Pulley on Main Frame and on CR <Type> Guide Frame (Back side) G-71 <Type> <Application Amount> G-97 Appropriate amount <Application Amount>...
Page 590 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A <Lubrication Point> <Lubrication Point> Application point CR Driven Pulley Holder Contact point between Paper Guide Front Assy <Type> and EJ Roller G-71 <Type> <Application Amount> 1. G-96 1 mm × 1 mm (8 points) 2. G-97 <Remarks>...
Page 591: Chapter 9 Appendix
C H A P T E R APPENDIX Confidential...
Page 592: Connection Diagram
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 9.1 Connection Diagram *1: WF-C5790/WF-C5790a/WF-C5710/ET-8700 only *2: WF-C5210/WF-C5290/WF-C5290a only ADF Relay Board *3: WF-C5790/WF-C5790a/WF-C5290/WF-C5290a only ADF PE Sensor ADF DOC Sensor ADF Motor ADF Encoder ADF Solenoid SCN Motor SCN Encoder Scanner CIS Module Maintenance Box Sensor (CSIC)
Page 593: Part Names Conversion Table
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 9.2 Part Names Conversion Table ASP Name Name used in This Manual BOARD ASSY.,SUB,CF24,ASP PF Encoder Board 9.2.1 WF-C5790/WF-C5790a/WF-C5710/ET-8700 SCALE,PF,ASP PF Scale HOUSING,PICKUP,ASSY Pickup Roller Housing ASP Name Name used in This Manual HOLDER,RETARD,ES,ASSY Retard Roller...
Page 594: Wf-C5210/Wf-C5290/Wf-C5290A
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 9.2.2 WF-C5210/WF-C5290/WF-C5290a ASP Name Name used in This Manual TUBE,ASSY.,SUPPLY,ASP Ink Supply Tube ASP Name Name used in This Manual SCREW HEAD ASSY Head Screw Assy PANEL ASSY.,CG05,ASP Panel Assy RASF,ASSY.,ASP Rear ASF Assy HOUSING,LEFT Housing Left EXTENSION SPRING,11.11...
Page 595: Optional Cassette Unit
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 9.2.3 Optional Cassette Unit ASP Name Name used in This Manual CASSETTE,2ND BIN ASSY.,OPT,ASP Paper Cassette 2nd Assy BOARD ASSY.,MAIN Optional Paper Cassette Main Board Assy COVER,LEFT,OPT,ASP Optional Paper Cassette Left Cover COVER,RIGHT,OPT Optional Paper Cassette Right Cover...
Page 596: Status Sheet Information
EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A 9.3 Status Sheet Information The following status sheets can be printed from the printer. This section explains about each item printed on the status sheets. Overview of Status Sheets  Printer information sheet: printer settings information ...
Page 597 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Item Explanation Sleep timer setting Whether the sleep timer is enabled or not is displayed. Power Off Timer The Power Off Timer setting is displayed. USB I/F time out settings are displayed. USB I/F Timeout Setting (WF-C5790/WF-C5790a/WF-C5710/ET-8700 only) Print language settings are displayed.
Page 598 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Item Explanation Paper Size Paper size setting is displayed. Paper Type Paper type setting is displayed. Orientation The orientation setting (portrait or landscape) is displayed. Quality The print quality setting (Draft, Standard, or Best) is displayed.
Page 599 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Item Explanation Subject (“Scan to Email” only) The subject of email is displayed. Color The color setting (Color or Mono) is displayed. File Format File format setting is displayed. Document Open Password (not provided for “Scan to Cloud”) Whether the password setting is enabled or not is displayed.
Page 600 Lock Setting Whether the setting is enabled or not is displayed. Admin Settings Access Control Whether the setting is enabled or not is displayed. Epson Open Platform Information Version The version is displayed. (WF-C5790/WF-C5790a/WF-C5710/ET-8700 Product key The product key is displayed (“---” is displayed when it is not set).
Page 601 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Supply Status Sheet (total pages: 1 sheets)  Item Explanation Device ID Device ID (product name) is displayed. Serial Number The serial number of the product is displayed. MAC Address MAC address of the product is displayed.
Page 602 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Usage History Sheet (total pages: 2 sheets)  Item Explanation Device ID Device ID (product name) is displayed. Serial Number The serial number of the product is displayed. MAC Address MAC address of the product is displayed.
Page 603 Number of prints B&W Print from Memory Device or Other Functions Color Print from Memory Device or Other Functions ESC/P-R PCL (WF-C5790/WF-C5790a/WF-C5710/ET-8700 only) The version of each of the printer language is <Sorted by Printer Language> PS / PDF displayed.
Page 604 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Service Status Sheet (total pages: 8 sheets)  Item Explanation Device ID Device ID (product name) is displayed. Serial Number The serial number of the product is displayed. MAC Address MAC address of the product is displayed.
Page 605 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Item Explanation IP Address Subnet Mask Default Gateway Primary DNS Server Network Settings Secondary DNS Server The network settings are displayed. DNS Domain Name Proxy Server Settings Proxy Server Proxy Server Port Number Subject (“Scan to Email” only) The subject of email is displayed.
Page 606 Attached File Max Size (“Scan to Email” only) The maximum file size that can be attached to an email is displayed. The product key is displayed (“---” is displayed when it is not set). Epson Open Platform Information Product key (WF-C5790/WF-C5790a/WF-C5710/ET-8700 only) Fax Function Whether the fax feature is enabled or not is displayed.
Page 607 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Item Explanation A3/Ledger A4/Letter <Sorted by Paper Size> The total number of printed pages per paper size is displayed. Detailed A6/Postcard (1-sided/2-sided, B&W/ count per function (one-sided/2-sided, monochrome/color) is also B4/Legal Color) displayed for each paper size.
Page 608 EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A Item Explanation Printer Error Scanner Error Status Fax Error Status of the product (error occurring state) is displayed. Network Error Other Error Appendix Status Sheet Information Confidential...

This manual is also suitable for:

Wf-c5790a Wf-c5710 Et-8700 Wf-c5210 Wf-c5290 Wf-c5290a

Epson WF-C5790 Service Manual

Revision Status

Chapter 1 Product Outline

Chapter 2 Product Specifications

Chapter 3 Configuration and Operating Principles

Chapter 4 Troubleshooting

Fatal Errors Table 4-2. Fatal Errors

Troubleshooting from Failure Symptom

Chapter 5 Service Support Mode

Chapter 6 Disassembly/Assembly

Chapter 7 Adjustment

Chapter 8 Maintenance/Inspection

Chapter 9 Appendix

Quick Links

Chapters

Troubleshooting

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Summary of Contents for Epson WF-C5790