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Epson FX-880 Service Manual

9-pin impact dot printer
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EPSON FX-880
®
4008484

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Summary of Contents for Epson FX-880

  • Page 1 3LQ,PSDFW'RW3ULQWHU EPSON FX-880 ® 4008484...
  • Page 2 The contents of this manual are subject to change without notice. All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be deteced, SEIKO EPSON would greatly appreciate being informed of them.
  • Page 3 THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS. WARNING 1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. 2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE.
  • Page 4 CHAPTER 5. ADJUSTMENTS Provides Epson-approved methods for adjustment. CHAPTER 6. MAINTENANCE Provides preventive maintenance procedures and the lists of Epson-approved lubricants and adhesives required for servicing the product. APPENDIX Provides the following additional information for reference: • Connector pin assignments •...
  • Page 5 REVISION STATUS Rev. Date Page(s) Contents 1997/09/30 First release...

  • Page 6: Table Of Contents

    TABLE OF CONTENTS PRODUCT SPECIFICATION 1.1 SPECIFICATION .................. 1-1 1.2 OPERATION..................1-7 1.2.1 Control panel ....................1-7 1.2.2 Switches ......................1-7 1.2.2.1 Usual Operation .................. 1-7 1.2.2.2 Operations at Power-on ..............1-8 1.2.3 Indicators ( LEDs ) ..................1-9 1.2.4 Buzzer......................1-9 1.2.5 Default setting mode 1 ................
  • Page 7 TROUBLESHOOTING 3.1 OVERVIEW ..................3-1 3.1.1 Main Component Checking Point ............... 3-1 3.1.2 Error....................... 3-3 3.2 UNIT LEVEL TROUBLESHOOTING ............ 3-4 3.3 UNIT REPAIRING OF THE POWER SUPPLY BOARD ..... 3-11 3.4 UNIT REPAIRING OF THE MAIN BOARD......... 3-13 3.5 REPAIRING THE PRINTER MECHANISM......... 3-16 DISASSEMBLY AND ASSEMBLY 4.1 OVERVIEW ..................
  • Page 8 ADJUSTMENT 5.1 ADJUSTMENT OVERVIEW ..............5-1 5.1.1 Required Adjustment ................... 5-1 5.1.2 Adjustment Tools ..................5-1 5.2 ADJUSTMENT AND RESETTING THE PRINTER ....... 5-2 5.2.1 Platen Gap Adjustment ................5-2 5.2.2 Factory Setting....................5-4 5.2.3 Bi-D Adjustment.................... 5-6 MAINTENANCE 6.1 PREVENTIVE MAINTENANCE ............6-1 6.2 LUBRICATION ..................

  • Page 9: Product Specification

    C H A P T E R PRODUCT SPECIFICATION...

  • Page 10: Specification

    FX-880 Service Manual Chapter 1 Product Description 1.1 SPECIFICATION The FX-880 is a small hoot, 9 pins serial impact dot matrix printer. The main specification is as follows; HARDWARE SPECIFICATIONS Print method 9 pins Impact dot matrix 9 ´ 1...
  • Page 11 FX-880 Service Manual Chapter 1 Product Description PAPER / MEDIA Table 1-3. Cut Sheet Insertion Front entry Rear entry Width 148 ~ 257mm ( 5.8 ~ 10.1”) Length 182 ~ 364mm ( 7.2 ~ 14.3” ) 92 ~ 364mm ( 3.6 ~ 14.3”) Thickness 0.065 ~ 0.14mm ( 0.0025~ 0.0055”)
  • Page 12 FX-880 Service Manual Chapter 1 Product Description Table 1-7. Continuous Paper with Labels Insertion Front entry Bottom entry Label size See the figure below; Figure 1-1. Label Base sheet width 101.6 ~ 254.0mm ( 4 ~ 10” ) Base sheet length 101.6 ~ 558.8mm ( 4 ~ 22”...
  • Page 13 FX-880 Service Manual Chapter 1 Product Description TYPEFACE Bit map Font EPSON Draft 10cpi, 12cpi, 15cpi EPSON Roman 10cpi, 12cpi, 15cpi, Proportional EPSON Sans Serif 10cpi, 12cpi, 15cpi, Proportional Bar code fonts EAN-13, EAN-8, Interleaved 2 of 5, UPC-A, UPC-E, Code 39,...
  • Page 14 FX-880 Service Manual Chapter 1 Product Description ACOUSTIC NOISE 55 dB(A) ( ISO 7779 pattern ) ENVIRONMENTAL CONDITION 5 to 35 °C ( Operating ) Temperature -30 to 60 °C ( Non-operating) Humidity 10 to 80 % ( Operating without condensation )
  • Page 15 FX-880 Service Manual Chapter 1 Product Description CONSUMPTION & OPTIONS Table 1-9. Consumable & Option Consumption Code No. Ribbon cartridge #8750 Ribbon pack #8758 Options High capacity cut sheet feeder ( Bin1 ) C80638* Single bin cut sheet feeder ( Bin 2 )

  • Page 16: Operation

    FX-880 Service Manual Chapter 1 Product Description 1.2 OPERATION This section describes the operations equipped with this printer. 1.2.1 Control panel The control panel of this printer consists of 5 switches and 5 LEDs, as shown below; Figure 1-3. Panel Operation Outline 1.2.2 Switches...

  • Page 17: Operations At Power-On

    FX-880 Service Manual Chapter 1 Product Description 1.2.2.2 Operations at Power-on Pressing the specified switch (switches) while turning on the printer enables the following special functions: Self test Load / Eject while turning on the printer. - Switches : Function: Executes the printing LQ self test printing.

  • Page 18: Indicators ( Leds )

    FX-880 Service Manual Chapter 1 Product Description 1.2.3 Indicators ( LEDs ) This printer has the following indicators to indicate its current condition as shown in the table below: Pause ( Orange ) Comes On when the printer is paused, and goes Off when the printer is not paused.

  • Page 19: Default Setting Mode 1

    FX-880 Service Manual Chapter 1 Product Description 1.2.5 Default setting mode 1 You can change some parameters that the printer refers to at printer initialization. 1.2.5.1 Setting Method Refer to the following flowchart for the default setting mode 1. Figure 1-4. Flowchart for Default Setting Mode 1 1.2.5.2 Setting Items...

  • Page 20: Default Setting Mode 2

    FX-880 Service Manual Chapter 1 Product Description 1.2.6 Default Setting Mode 2 Refer to the following flowchart for the default setting mode 2. Figure 1-5. Flowchart for Default setting mode 2 1.2.6.1 Setting Items Setting values available for the default setting mode including factory settings are as shown in the following table: Table 1-13.

  • Page 21: Eeprom Clear Function

    FX-880 Service Manual Chapter 1 Product Description 1.2.7 EEPROM Clear Function You can change some parameters into the factory settings to perform panel operation easily. Pressing Tear off / Bin and Load / Eject switches at same time while turning on the printer turns the default settings into the factory settings: Table 1-14.

  • Page 22: Bi-D Adjustment

    FX-880 Service Manual Chapter 1 Product Description 1.2.8 Bi-D Adjustment Refer to the following flowchart for the Bi-D adjustment. Figure 1-6 . Bi-D Adjustment flowchart Rev. A 1-13...

  • Page 23: Operating Priciples

    & + $ 3 7 ( 5 OPERATING PRICIPLES...

  • Page 24: Main Components

    FX-880 Service Manual Chapter 2 Operating Principles 2.1 MAIN COMPONENTS This printer is divided into several main components for easy removal and repair. The main components are : C229MAIN : Control board C229PSB/PSE : Power supply board C229PNL : Operation panel board...

  • Page 25: Printer Mechanism

    FX-880 Service Manual Chapter 2 Operating Principles 2.2 PRINTER MECHANISM This printer mechanism consists of Printhead, Paper feed mechanism, Carriage movement mechanism, Tractor feed mechanism, Platen gap adjustment mechanism, Ribbon feed mechanism, PF motor, CR motor, detectors, and so on.
  • Page 26 FX-880 Service Manual Chapter 2 Operating Principles Figure 2-3. Printer Mechanis Outline Rev. A...

  • Page 27: Circuit Operation

    FX-880 Service Manual Chapter 2 Operating Principles 2.3 CIRCUIT OPERATION 2.3.1 C229PSB/PSE Power Supply Circuit This printer can be powered by either of two power supply boards: the C229PSB (120V) board or the C229PSE (230V) board. The function of these two boards is the same , except for a difference in the primary circuitry.

  • Page 28: C229Main Board Circuit

    FX-880 Service Manual Chapter 2 Operating Principles 2.3.2 C229MAIN Board Circuit The C229MAIN board is the control circuit board of this printer. This board consists of several IC chips and drivers, as shown in the table below: Table 2-3. Function of the Main IC...
  • Page 29 FX-880 Service Manual Chapter 2 Operating Principles The data from the host computer is stored in the input buffer once, then converted into image data and transmitted to the printhead through the gate array, as shown in the figure below: Figure 2-6.

  • Page 30: Troubleshooting

    & + $ 3 7 ( 5 TROUBLESHOOTING...

  • Page 31: Overview

    FX-880 Service Manual Chapter 3 Troubleshooting 3.1 OVERVIEW The printer may exhibit different symptoms for the same problem, which makes troubleshooting more difficult. This section, however, provides simple and effective ways to facilitate troubleshooting. The following flowchart illustrates the main steps of the troubleshooting process.
  • Page 32 FX-880 Service Manual Chapter 3 Troubleshooting Table 3-2. Printhead Solenoid Resistance Part Test Pin Test Method Specifications Number (Set Meter to Ohms. Disconnect (See the figure Motor from Main Board and check it berlow.) with Printer Power off.) Printhead Common pin C1 : For example, place one lead on pin C1 and 8.19...

  • Page 33: Error

    FX-880 Service Manual Chapter 3 Troubleshooting Table 3-4 Detector Test Point Detector Connector Test Method Meter Reading Number (Set Meter to Ohms. Check the Printer power off.) HP Detector Place one lead on pin 1 and the Meter should toggle between...

  • Page 34: Unit Level Troubleshooting

    FX-880 Service Manual Chapter 3 Troubleshooting 3.2 UNIT LEVEL TROUBLESHOOTING You may be able to Identify the defective unit just from the symptom displayed. The table below provides the symptoms for a number of failures, so that you can easily Identify the problem. Once the problem has been identified, refer to the flowchart listed In the right-hand column of the table below to determine the case of the problem.

  • Page 35: Chapter 3 Troubleshooting

    FX-880 Service Manual Chapter 3 Troubleshooting 1. Printer fails to operate when power is on. START Is AC input voltage normal? Use the correct AC input voltage. 120V version: 85 - 138V No fluctuation from AC voltage range is 230V version: 187 - 276V permitted.
  • Page 36 FX-880 Service Manual Chapter 3 Troubleshooting 2. Abnormal carriage operation at power on. START Are all connectors connecting the C229MAIN board and printer Reinsert the connectors correctly. mechanism? Is the fault solved? Dose the carriage move See the troubleshooting for to the home position? Printer Mechanism.
  • Page 37 FX-880 Service Manual Chapter 3 Troubleshooting 3. Printing is faulty during self-test, but carriage operation is normal. START Is AC input voltage normal? Use the correct AC input voltage. 120V version: 85 - 138V. No fluctuation from AC voltage range is 230V version: 187 - 276V.
  • Page 38 FX-880 Service Manual Chapter 3 Troubleshooting 4. Abnormal paper feeding START Is the paper loaded Load the paper correctly? correctly. Is the connector CN5 Reinsert the connector or CN6 connected CN5 or CN6 correctly. correctly? Is the fault solved? Dose the platen knob rotate...
  • Page 39 FX-880 Service Manual Chapter 3 Troubleshooting 5. Abnormal control panel operation START Do the switches have clicks? Replace the Operation Panel. Is the fault solved? Replace the C229MAIN board. Is the fault solved? Verify that the harness for the operation panel is properly inserted and have continuity.
  • Page 40 FX-880 Service Manual Chapter 3 Troubleshooting 6. Data sent by the host computer is printed incorrectly. START Execute the printer self test. Dose the self test print Refer to the other normally? troubleshooting items. Verify the default setting. Is the interface cable connected Replace the interface cable.

  • Page 41: Unit Repairing Of The Power Supply Board

    FX-880 Service Manual Chapter 3 Troubleshooting 3.3 UNIT REPAIRING OF THE POWER SUPPLY BOARD This section is necessary only for servicers who repair to the component level. Servicers who perform only board replacement can ignore this section. The table below lets you troubleshoot problems with the power supply board (C229PSB/PSE). The table provides various symptoms, likely cases, and checkpoints.
  • Page 42 FX-880 Service Manual Chapter 3 Troubleshooting Table 3-7. Repair of the C229PSB/PSE (continued) Condition Cause Checkpoint Solution Symptom Verify the waveform at pin 5 or 7 of PC1. Replace the +35V line is PC1 is C229PSB/ defective. defective. PSE board.

  • Page 43: Unit Repairing Of The Main Board

    FX-880 Service Manual Chapter 3 Troubleshooting 3.4 UNIT REPAIRING OF THE MAIN BOARD This section is necessary only for servicers who repair to the component level. Servicers who perform only board replacement can ignore this section. The table below lets you troubleshoot problems with the main board (C229MAIN). The table provides various symptoms, likely cases, and checkpoints.
  • Page 44 FX-880 Service Manual Chapter 3 Troubleshooting Table 3-9. Repair of the C229MAIN (continued) Condition Cause Checkpoint Solution Symptom Verify the oscillator signal at pin 26 or 27 of the CPU (IC3). Replace the The printer The CPU The CPU is...
  • Page 45 FX-880 Service Manual Chapter 3 Troubleshooting Table 3-10. Repair of the C229MAIN (continued) Condition Cause Checkpoint Solution Symptom Verify the PF motor phase control signals at pin 1, 2, 23, 24, and motor drive signals at pin 3, 6, 18, 21 of IC11.

  • Page 46: Repairing The Printer Mechanism

    FX-880 Service Manual Chapter 3 Troubleshooting 3.5 REPAIRING THE PRINTER MECHANISM For detailed procedures for replacing or adjusting matter, refer to Chapter 4, Disassembly and Assembly and Chapter 5, adjustments . If a problem or symptom occurs, refer to following tables to try find other potential causes.
  • Page 47 FX-880 Service Manual Chapter 3 Troubleshooting Table 3-12. Repairing the Printer Mechanism (continued) Symptom Cause Checkpoint Solution Problem: Self test printing is not executed. A particular dot is The printhead is Measure the printhead coil Replace the missing. defective. resistance. It should be printhead, (and about 8 ohms.
  • Page 48 FX-880 Service Manual Chapter 3 Troubleshooting Table 3-13. Repairing the Printer Mechanism (continued) Symptom Cause Checkpoint Solution Problem: Paper becomes stained with ink. Ink stains appear on The ribbon mask is Make sure the ribbon Reinstall the ribbon printed areas.
  • Page 49 C H A P T E R DISASSEMBLY AND ASSEMBLY...

  • Page 50: Disassembly And Assembly

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.1 OVERVIEW This section describes various points to note when disassembling and assembling the printer. Unless otherwise specified, disassembled units or components can be re-assembled by reversing the disassembly procedure. Therefore, no assembly procedures are included in this section.

  • Page 51: Service Check After Repair

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.1.3 Service Check After Repair After completing repair of the product, use the check list shown below, to verify status of repaired product and all the repair work performed before returning the product to the users. This list can be as a record of all service work performed with the product.

  • Page 52: Abbreviations For Small Parts

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.1.4 Abbreviations for Small Parts The table below lists the abbreviations used in this manual for small parts, such as screws and washers, etc. Table 4-3. Abbreviations and Screw Type Abbreviation Description...

  • Page 53: Disassembly And Assembly

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2 DISASSEMBLY AND ASSEMBLY This section provides the disassembly procedures. The basic order for disassembly is shown in the flowchart below. The exploded diagrams are also provided in the APPENDIX. Refer to them to see how components are engaged each other if necessary.

  • Page 54: Printhead Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.1 Printhead Removal Remove the top cover. Remove 2 CBS (M3 8) screws attaching the printhead to the carriage assembly. Disconnect the head FFC from the printhead and remove it. WARNING „ Before disassembling or assembling the printhead, disconnect the power supply cable from the AC power socket.

  • Page 55: Hp (Home Position) Detector Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.2 HP (Home Position) Detector Removal Remove the top cover. Release the hook attaching the HP detector to the printer mechanism and remove it. Disconnect the harness of the detector from the detector connector.

  • Page 56: Pre-Disassembly Procedures

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.3 Pre-disassembly Procedures Remove the PAPER GUIDE ASSEMBLY, top cover, front cover, paper eject cover, knob and tractor unit. Figure 4-4•DPre-Desassembly CAUTION Remove the paper eject cover and the tractor unit by pushing and releasing the hooks at both sides.

  • Page 57: Upper Housing Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.4 Upper Housing Removal Remove the PAPER GUIDE ASSEMBLY, top cover, front cover, paper eject cover, knob and tractor unit. (See Section 4.2.3.) Remove 2 CBS (M3 6) screws and a CBB (4 12) screw securing the upper housing to the lower case.

  • Page 58: C229Main Board Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.5 C229MAIN Board Removal WARNING „ Before disassembling, assembling or adjusting the printer, disconnect the power supply cable from the AC power socket. Failure to do it cause personal injury. „ Do not touch the heat sink attached to the switching FET (Q1) on the power supply board, just after power off as it may be very hot.
  • Page 59 FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY Figure 4-6. C229MAIN Board Removal Rev. A 4-10...

  • Page 60: C229Psb/Pse Board Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.6 C229PSB/PSE Board Removal Remove the PAPER GUIDE ASSEMBLY, top cover, front cover, paper eject cover, knob and tractor unit. (See Section 4.2.3.) Remove the upper housing. (See Section 4.2.4.) Remove 5 CBS (M3...

  • Page 61: Rom Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.7 ROM Removal WARNING „ Before disassembling, assembling or adjusting the printer, disconnect the power supply cable from the AC power socket. Failure to do it cause personal injury. „ Do not touch the heat sink attached to the switching FET (Q1) on the power supply board, just after power off as it may be very hot.

  • Page 62: Platen Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.8 Platen Removal Remove the PAPER GUIDE ASSEMBLY, top cover, front cover, paper eject cover, knob and tractor unit. (See Section 4.2.3.) Remove the upper housing. (See Section 4.2.4.) Remove 2 CBS (M3 8) screws securing the COVER,PLATEN.

  • Page 63: Printer Mechanism Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.9 Printer Mechanism Removal Remove the PAPER GUIDE ASSEMBLY, top cover, front cover, paper eject cover, knob and tractor unit. (See Section 4.2.3.) Remove the upper housing. (See Section 4.2.4.) Remove 5 CBS (M3...

  • Page 64: Printer Mechanism Disassembly

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.10 Printer Mechanism Disassembly 4.2.10.1 CR Motor Removal Release the tension spring. Disengage the TIMING BELT from the CR motor pinion and hang it on the hook. Remove 2 SHAFT,MOUNT,CR screws securing the CR motor assembly to the FRAME,SUB,RIGHT, and remove the CR motor.

  • Page 65: Pf Motor Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.10.2 PF Motor Removal Remove the printer mechanism. (See Section 4.2.9.) Release the motor harness from the printer mechanism securing part. Set the release lever to the vertical (Rear Push tractor) or forward (Push tractor) position.

  • Page 66: Pf Gear Train Disassembly

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.10.3 PF Gear Train Disassembly Remove the printer mechanism. (See Section 4.2.9.) Remove the CR motor. (See Section 4.2.10.1.) Remove the PF motor. (See Section 4.2.10.2) Remove the head FFC from the FRAME,SUB,RIGHT of the printer mechanism.

  • Page 67: Pg (Platen Gap) Detector Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.10.4 PG (Platen Gap) Detector Removal Remove the printer mechanism. (See Section 4.2.9.) Remove 2 clips of PG detector attached to the LEFT FRAME of the printer mechanism and remove the detector.

  • Page 68: Front Pe (Paper End) Detector Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.10.6 Front PE (Paper End) Detector Removal Remove the printer mechanism. (See Section 4.2.9.) Remove 2 clips of the front PE detector attached to the REAR PAPER GUIDE ASSEMBLY, and remove the detector.

  • Page 69: Carriage Assembly Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.10.8 Carriage Assembly Removal Remove the printer mechanism. (See Section 4.2.9.) Remove the Head FFC. (See Section 4.2.1.) Remove the Platen. (See Section 4.2.8.) Remove the hexagon nut and the washer securing the LEVER,G,ADJUST to the SHAFT,CR,GUIDE, and remove the lever.

  • Page 70: Rear Paper Guide Assembly Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.10.9 Rear Paper Guide Assembly Removal Remove the printer mechanism. (See Section 4.2.9.) Remove the Platen. (See Section 4.2.8.) Remove the hexagon nut and the washer securing the LEVER,G,ADJUST to the SHAFT,CR,GUIDE, and remove the lever. (See Section 4.2.10.8.) Remove the BUSHING,PARALLEL,ADJUST to turn around the SHAFT,CR,GUIDE.

  • Page 71: Ribbon Drive (Rd) Assembly Removal

    FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY 4.2.10.10 Ribbon Drive (RD) Assembly Removal Remove the printer mechanism. (See Section 4.2.9.) Remove the Platen. (See Section 4.2.8.) Remove the hexagon nut and the washer securing the LEVER,G,ADJUST to the SHAFT,CR,GUIDE, and remove the lever.
  • Page 72 & + $ 3 7 ( 5 ADJUSTMENT...

  • Page 73: Adjustment

    FX-880 Service Manual Chapter 5 Adjustment 5.1 ADJUSTMENT OVERVIEW 5.1.1 Required Adjustment This section describes what adjustments are required after any part is removed or replaced. The following table shows the relationship between the repair item and the adjustment. Table 5-1. Required Adjustment...

  • Page 74: Adjustment And Resetting The Printer

    FX-880 Service Manual Chapter 5 Adjustment 5.2 ADJUSTMENT AND RESETTING THE PRINTER 5.2.1 Platen Gap Adjustment If the SHAFT,CR,GUIDE or BUSHING,PARALLEL,ADJUST is rotated or reassembled, or printing is too faint or stained, the Plate Gap adjustment must be performed in the following order: Remove the Upper housing.
  • Page 75 FX-880 Service Manual Chapter 5 Adjustment 11. Move the carriage assembly to the left edge. 12. Set the thickness gauge of 0.38 mm and insert it between the Printhead and PLATEN. 13. Insert the screwdrivers into the countersink and rotate the screwdriver until the PLATEN and Printhead touch each other lightly.

  • Page 76: Factory Setting

    FX-880 Service Manual Chapter 5 Adjustment 5.2.2 Factory Setting The factory settings of the printer for each destination are installed in the EEPROM on the main board. Therefore, If you have replaced the main board, you must re-install them again by the adjustment program.
  • Page 77 FX-880 Service Manual Chapter 5 Adjustment The carriage width select menu appears. Move the cursor using “ ” or “ ” key to select “(1) 80 column” and press “Return” key. Program : xxxxx Setting: 9 pins VR 0 = x...

  • Page 78: Bi-D Adjustment

    FX-880 Service Manual Chapter 5 Adjustment 5.2.3 Bi-D Adjustment Bi-D adjustment can be made either through the panel operation or with the adjustment program. This section describes Bi-D adjustment performed with the following program: Connect the printer and the PC by the parallel interface cable.
  • Page 79 FX-880 Service Manual Chapter 5 Adjustment 10. Repeat Step 8 and Step 9 to align the lines continuously by making “a” as specified below: All mode : Less than 0.05 mm (at the center of the column) Mode 0 : Less than 0.3 mm (at left and right sides of the column) Mode 1 : Less than 0.2 mm (at left and right sides of the column)

  • Page 80: Maintenance

    & + $ 3 7 ( 5 MAINTENANCE...

  • Page 81: Preventive Maintenance

    The influence that oil and grease give is great especially in low temperature. Therefore, EPSON has been tested and analyzed various oil and grease extensively and chooses the best one for that print.

  • Page 82: Lubrication

    FX-880 Service Manual Chapter 6 Maintenance 6.2 LUBRICATION Figure 6-1. Lubrication Point (1) Figure 6-2. Lubricating Point (2) and (3) Rev. A...
  • Page 83 FX-880 Service Manual Chapter 6 Maintenance Figure 6-3. Lubricating Point (4) Figure 6-4. Lubricating Points (5), (6) and (7) Figure 6-5. Lubricating Point (8) Rev. A...

  • Page 84: Appendix

    & + $ 3 7 ( 5 APPENDIX...

  • Page 85: Connector Summary

    FX-880 Service Manual Appendix 7.1 CONNECTOR SUMMARY The primary components are connected as shown below; Figure 7-1. Cable Connections Table 7-1. Connector Summary Board Connector Description C229MAIN Board Parallel I/F Type-B I/F (Option) DC input, Power On/Off HP Detector Rear PE Detector...
  • Page 86 FX-880 Service Manual Appendix Table 7-2. Connector Pin Assignment - CN1 Pin No. Signal Name Function /STROBE Strobe pulse. Input data is latched at falling edge of the signal. 2 - 9 DATA1 - DATA8 Parallel input data to the printer...
  • Page 87 FX-880 Service Manual Appendix Table 7-3. Connector Pin Assignment - CN2 Pin No. Signal Name Function 1 - 6 +5 V Transmit data /READY Ready to receive data Receive data Not connected. /RST Reset Inhibit /CMREQ Command request /WRRDY Write ready...
  • Page 88 FX-880 Service Manual Appendix Table 7-6. Connector Pin Assignment - CN5 Pin No. Signal Name Function Rear PE Detector signal Ground Table 7-7. Connector Pin Assignment - CN6 Pin No. Signal Name Function Front PE Detector signal Ground Table 7-8. Connector Pin Assignment - CN7 Pin No.
  • Page 89 FX-880 Service Manual Appendix Table 7-11. Connector Pin Assignment - CN10 Pin No. Signal Name Function RELEASE Release Detector signal Ground Table 7-12. Connector Pin Assignment - CN11 Pin No. Signal Name Function PG Detector signal Ground Table 7-13. Connector Pin Assignment - CN12 Pin No.

  • Page 90: Component Layout

    FX-880 Service Manual Appendix 7.2 COMPONENT LAYOUT Figure 7-2. C229MAIN Board Component Layout Rev. A...
  • Page 91 FX-880 Service Manual Appendix Figure 7-3. C229PSB Board Component Layout Figure 7-4. C229PSE Board Component Layout Rev. A...
  • Page 92 FX-880 Service Manual Appendix Figure 7-5. C229PNL Board Component Layout Rev. A...

  • Page 93: Exploded Diagram

    FX-880 Service Manual Appendix 7.3 EXPLODED DIAGRAM Figure 7-6. Exploded Diagram (1) Rev. A...
  • Page 94 FX-880 Service Manual Appendix Figure 7-7. Exploded Diagram (2) Rev. A 7-10...

  • Page 95: Dimension And Weight

    FX-880 Service Manual Appendix 7.4 DIMENSION AND WEIGHT Figure 7-8. Case Outline Drawing Rev. A 7-11...

  • Page 96: Circuit Diagram

    FX-880 Service Manual Appendix 7.5 CIRCUIT DIAGRAM For the circuit diagram of the following circuit boards, refer to the following pages. ‰ C229PNL BOARD ‰ C229MAIN BOARD ‰ C229PSB/PSE BOARD Rev. A 7-12...

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