Epson WF-7525 Service Manual
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Epson WF-7525 Service Manual

Epson WF-7525 Service Manual

Color inkjet printer
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SERVICE MANUAL
Color Inkjet Printer
Epson WF-7525 / Epson WF-7521 / Epson WF-7520/
Epson WF-7515 / Epson WF-7511 / Epson WF-7510/
Epson WF-7018 / Epson WF-7015 / Epson WF-7012/
Epson WF-7011 / Epson WF-7010
SEMF10-012

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  • Page 1 SERVICE MANUAL Color Inkjet Printer Epson WF-7525 / Epson WF-7521 / Epson WF-7520/ Epson WF-7515 / Epson WF-7511 / Epson WF-7510/ Epson WF-7018 / Epson WF-7015 / Epson WF-7012/ Epson WF-7011 / Epson WF-7010 SEMF10-012...
  • Page 2 The contents of this manual are subject to change without notice.  The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof. EPSON is a registered trademark of SEIKO EPSON CORPORATION.

  • Page 3: Safety Precautions

    Strictly observe the following cautions. Failure to comply may lead to personal injury or damage of the product. 1. Repairs on Epson product should be performed only by an Epson certified repair technician. 2. No work should be performed on this product by persons unfamiliar with basic safety knowledge required for electrician.
  • Page 4 6. To prevent the circuit boards from short-circuiting, be careful about the following when handling FFC or cables.  When handling FFC, take care not to let the terminal section of FFC touch metal parts.  When connecting cables/FFC to the connectors on circuit boards, connect them straight to the connectors to avoid slant insertion.
  • Page 5 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 DESCRIPTIONS Provides a general overview and specifications of the product. CHAPTER 2.

  • Page 6: Revision Status

    Revision Status Revision Date of Issue Description Aug. 24, 2011 First Release...

  • Page 7: Table Of Contents

    Epson WF-7520/7510/7010 series Revision A Contents Chapter 1 Product description 1.1 Features ..................................10 1.2 Printing Specifications ............................. 12 1.2.1 Basic Specifications............................12 1.3 Scanner Specifications (WF-7520/7510 series only) ....................13 1.3.1 Basic Specifications............................13 1.4 Control Panel................................14 1.4.1 Operation Buttons.
  • Page 8 Epson WF-7520/7510/7010 series Revision A Chapter 5 Adjustment 5.1 Required Adjustments .............................. 69 5.2 Details of Adjustments ............................. 75 5.2.1 PF Timing Belt Tension Check ........................75 5.2.2 Checking the Platen Gap ..........................76 5.2.3 Scanner Timing Belt Tension Check....................... 77 5.2.4 MAC Address Setting.

  • Page 9: Chapter 1 Product Description

    CHAPTER 1 PRODUCT DESCRIPTION...

  • Page 10: Features

     WF-7510 series: Epson WF-7515/Epson WF-7511/Epson WF-7510  WF-7010 series: Epson WF-7018/Epson WF-7015/Epson WF-7012/Epson WF-7011/ Epson WF-7010 WF-7520/7510/7010 series are an A3 color inkjet printer based on Epson WorkForce 840/Epson Stylus Office BX925FWD. Major features are as follows.  Common futures ...

  • Page 11: External View

    Epson WF-7520/7510/7010 series Revision A  External view WF-7520 series WF-7510 series WF-7010 series Figure 1-1. External View Table 1-2. Dimensions Model Dimensions (W x D x H) Weight WF-7520 series 559 mm x 418 mm x 365 mm 18.9 kg...

  • Page 12: Printing Specifications

    Epson WF-7520/7510/7010 series Revision A 1.2 Printing Specifications 1.2.1 Basic Specifications Table 1-3. Printer Specifications Item Specification Print method On-demand ink jet Nozzle configuration Black: 384 nozzles (128 nozzles x 3) Color: 384 nozzles (128 nozzles x 1 per color)

  • Page 13: Scanner Specifications (Wf-7520/7510 Series Only)

    Epson WF-7520/7510/7010 series Revision A 1.3 Scanner Specifications (WF-7520/7510 series only) 1.3.1 Basic Specifications Table 1-4. Basic Specifications Item Specification Scanner type Flatbed, color Scanning method Moving carriage, stationary document Home position The rear left corner Photoelectric device Light source...

  • Page 14: Control Panel

    Epson WF-7520/7510/7010 series Revision A 1.4 Control Panel 1.4.1 Operation Buttons The operation buttons, LEDs, and LCD are shown below. See Table 1-6 Table 1-7 for the functions.  WF-7520/7510 series Photo Copy Scan Menu Back Start Print Stop Start WF-7520 series only Figure 1-2.
  • Page 15 Epson WF-7520/7510/7010 series Revision A Table 1-6. Operation Buttons, LEDs and LCD (WF-7520/7510 series) Item Icon Name Function • Lights when the printer is on. Power • Flashes when the printer is in process. Network Indicates the network connection status.

  • Page 16: Leds And Lcd Indications

    Alternate A printer's ink pad is nearing the end of its Flash error flash 1 flash 2 service life. Please contact Epson Support. Paper jam. Press OK to see how to remove Paper jam error Flash Flash jammed paper. Load Cassette correctly and press...
  • Page 17 Epson WF-7520/7510/7010 series Revision A Table 1-8. LEDs and LCD Indications WF-7010 series WF-7520/7510 series Status LCD Message Power Network Paper Replace the cartridge(s) and close the Starting filling of ink Flash scanner unit. (after carriage moves) <Ink Cartridges>XXXXXXX Ink cartridge cover open The ink cartridge cover is open.
  • Page 18 Alternate Alternate A printer's ink pad is nearing the end of its error flash 1 flash 2 service life. Please contact Epson Support. Requiring ink cartridges Replace the cartridge(s) and close the (carriage is at the Flash scanner unit. replacement position) <Ink Cartridges>XXXXXXX...

  • Page 19: Various Settings

    Epson WF-7520/7510/7010 series Revision A 1.5 Various Settings 1.5.1 Panel Operation 1.5.1.1 Setup Menu Configuration (WF-7520/7510 series only) The following explains the setup menu structure and the outline of the menu functions. Table 1-9. Setup Menu Configuration (WF-7520/7510 series only)

  • Page 20: Forced Power Off (Wf-7010 Series Only)

    Epson WF-7520/7510/7010 series Revision A 1.5.1.2 Forced Power OFF (WF-7010 series only) For WF-7010 series, the power can be turned off forcibly by the following panel operation. If the power is turned off forcibly, the same process of the normal power-off is executed.

  • Page 21: Chapter 2 Operating Principles

    CHAPTER 2 OPERATING PRINCIPLES...

  • Page 22: Overview

    Epson WF-7520/7510/7010 series Revision A 2.1 Overview In this chapter, the product names are called as follows:  WF-7520 series: Epson WF-7525/Epson WF-7521/Epson WF-7520  WF-7510 series: Epson WF-7515/Epson WF-7511/Epson WF-7510  WF-7010 series: Epson WF-7018/Epson WF-7015/Epson WF-7012/Epson WF-7011/ Epson WF-7010 This chapter describes the operating principles of WF-7520/7510/7010 series printer mechanism.
  • Page 23 Epson WF-7520/7510/7010 series Revision A  2nd cassette (WF-7520/7010 series only) Table 2-2. List of Motors & Sensors (2nd Cassette) Mechanism Motor or Sensor Paper loading/feed mechanism Pickup Motor Pickup Encoder Paper Stopper Lever Sensor 2nd Figure 2-2. Motors & Sensors (2nd Cassette)
  • Page 24 Epson WF-7520/7510/7010 series Revision A  Scanner (WF-7520/7510 series only) Table 2-3. List of Motors & Sensors (Scanner) Mechanism Motor or Sensor Scanner mechanism Scanner Motor Assy CIS Unit Figure 2-3. Motors & Sensors (Scanner) Table 2-4. List of Motors & Sensors (ADF)

  • Page 25: Optical Sensor Control

    Epson WF-7520/7510/7010 series Revision A 2.3 Optical Sensor Control WF-7520/7510/7010 series uses the optical sensor to control itself. The following describes the operating principles of optical sensor control.  Control method To ensure accurate printing, each part must be controlled to make an adequate amount (time) of movement. The optical sensors read the amount (time) of movements as follows to printer to control it for achieving accurate printing.

  • Page 26: Power-On Sequence

    Epson WF-7520/7510/7010 series Revision A 2.4 Power-On Sequence This section describes the power-on sequences for this product. The preconditions are as follows.  Condition 1: Normal power-on sequence (See Table 2-6.)  Turning on the printer after turning it off without an error.
  • Page 27 Epson WF-7520/7510/7010 series Revision A Table 2-6. Condition 1: Normal Power-on Sequence Carriage/PF Roller Operation movement and position 5. PF initialization 5-1.The PF Motor rotates clockwise for approximately one second. 5-2.The PE sensor detects if paper exists and the PF Motor rotates clockwise for approximately 0.5 second.
  • Page 28 Epson WF-7520/7510/7010 series Revision A Table 2-7. Condition 2: Power-on Sequence after Recovering from a Paper Jam Error Carriage/PF Roller Operation movement and position Executes No.1 to No.5 on the normal power-on sequence (Table 2-6). 6. Detecting remaining paper 6-1.The carriage moves to the 130-digit side and confirms there is no paper.
  • Page 29 CHAPTER 3 TROUBLESHOOTING...

  • Page 30: Troubleshooting

    Scanner error. Turn power off and then on again. In Scanner fatal error the error is not fixed, visit Epson.com for technical support. ADF fatal error Automatic Document Feeder (ADF) error. Paper jam in the Automatic Document Feeder ADF paper jam error (ADF).

  • Page 31: Troubleshooting Workflow

    Epson WF-7520/7510/7010 series Revision A Table 3-1. Error Message List WF-7010 series WF-7520/7510 series Status LCD Message Power Network Paper Ink cartridge is not recognized. Please replace the Ink cartridge detection error Flash cartridge. (non-Epson cartridge) <Ink Cartridges>XXXXXXX The cartridge is installed incorrectly. Press it down...
  • Page 32 Roller or paper feed roller in Sensor • Contamination of Printhead [Major Troubleshooting] Step 3. Duplex Unit Is ADF operation finished Cover • Recommendation of EPSON • Foreign material • PE Sensor Lever without trouble? • Printhead damage media • Part come-off • PE Sensor •...

  • Page 33: Fatal Error Code

    Epson WF-7520/7510/7010 series Revision A 3.1.3 Fatal Error Code This section describes the fatal error code and the possible cause for this product.  Printer fatal error list Table 3-2. Fatal Error List (Printer) Error Error type Error name Possible cause code •...
  • Page 34 Epson WF-7520/7510/7010 series Revision A Table 3-2. Fatal Error List (Printer) Error Error type Error name Possible cause code • PF Encoder failure (contaminated/detached scale, Encoder Board failure) PF load position reverse error • Tooth skip of the PF Timing Belt •...
  • Page 35 Epson WF-7520/7510/7010 series Revision A Table 3-2. Fatal Error List (Printer) Error Error type Error name Possible cause code Home position error Deadlock avoidance error • Paper jam • Foreign object Impossible contact detection error Sequence • Deformation of the Main Frame...
  • Page 36 Epson WF-7520/7510/7010 series Revision A  Scanner/ADF fatal error list (WF-7520/7510 series only) Table 3-3. Fatal Error List (Scanner/ADF) Error code Error name Possible cause • ADF Encoder failure (contaminated/detached scale, Encoder Board failure) ADF PID excess speed error • Motor driver failure (Main Board failure) •...

  • Page 37: Fax Troubleshooting (Wf-7520/7510 Series Only)

    Epson WF-7520/7510/7010 series Revision A 3.1.4 FAX Troubleshooting (WF-7520/7510 series only) 3.1.4.1 FAX Log When an error related to fax occurs, it is not only indicated on the LCD but also saved as a log file. The error code is recorded in it, and according to this log, the contents of the error can be confirmed.
  • Page 38 Epson WF-7520/7510/7010 series Revision A Table 3-5. FAX Log (2) Log Name Description Save Destination The following information of the latest communication is stored. Item Information Communication start Year/month/day/hour/minute date / time Communication type Sending/receiving/polling reception Sending/polling reception: • Destination name of speed dial (first 20 characters) •...
  • Page 39 Epson WF-7520/7510/7010 series Revision A Table 3-6. Error Code List Error Code Phenomenon LCD Display Print Example (HEX) Communication error Communication error Error code Communication error Communication error Error code Communication error Communication error Error code Communication error Communication error...
  • Page 40 Epson WF-7520/7510/7010 series Revision A Table 3-6. Error Code List Error Code Phenomenon LCD Display Print Example (HEX) Communication error Communication error Error code Communication error Communication error Error code Communication error Communication error Error code System error System Error...
  • Page 41 Epson WF-7520/7510/7010 series Revision A Table 3-7. Command/Response Code FCF value (HEX) Command/response (LSB first: X=0) Content code First Second Failure To Train Response for Continue To correct Reserved (CSA) Called Subscriber internet Address End Of Message MultiPage Signal End Of Procedure...

  • Page 42: Error Code/Superficial Phenomenon-Based Troubleshooting

    Epson WF-7520/7510/7010 series Revision A 3.1.4.2 Error Code/Superficial Phenomenon-Based Troubleshooting This section explains the troubleshooting procedures based on the error codes and superficial phenomenon.  When an error occurs, it may be displayed on the LCD panel with a message instead of an error code.
  • Page 43 Epson WF-7520/7510/7010 series Revision A Table 3-8. Troubleshooting Based on the Error Code/Superficial Phenomenon Error code (LCD Description Remedy Message)/Phenomenon The size of the memory is 2.0 Cannot print all the Mbyte. If the data becomes over received data when...

  • Page 44: Chapter 4 Disassembly/Reassembly

    CHAPTER 4 DISASSEMBLY/REASSEMBLY...

  • Page 45: Overview

    Tweezers Longnose pliers Acetate tape 1003963 Nippers Note 1: Some of the tools listed above are commercially available. 2: EPSON provides the tools listed with EPSON part code. 4.1.2 Jigs Name Quantity EPSON Part Code Thickness gauge (1.5 mm) Commercially available Thickness gauge (1.9 mm)

  • Page 46: Disassembly/Reassembly Procedures

    Epson WF-7520/7510/7010 series Revision A 4.2 Disassembly/Reassembly Procedures 4.2.1 Parts/Units Need to be Removed in Advance "4.2.2 Disassembling Flowchart (p48)", the procedures are indicated on the premise that some parts/units are removed in advance. Make sure to remove the following parts/units before starting disassembly.
  • Page 47 Epson WF-7520/7510/7010 series Revision A This section describes procedures for disassembling the parts/units in a flowchart format. For some parts/units, detailed procedures or precautions are provided (accordingly indicated by icons and cell's color). Refer to the explanations in the example chart below and perform an appropriate disassembling and assembling procedure.

  • Page 48: Disassembling Flowchart

    Epson WF-7520/7510/7010 series Revision A 4.2.2 Disassembling Flowchart 4.2.2.1 Exterior Parts WF-7520 series Waste Ink Tray Paper Stopper Lower Case Foot Cover Assy 2nd (p 49) (p 56) (p 55) (p 59) (p 79) Paper Stopper Waste Ink Tray Assy 2nd...
  • Page 49 Epson WF-7520/7510/7010 series Revision A WF-7520/7510 series (p 48) Paper Sheet ADF Paper Guide USB Cover ADF Pad Assy Document Pad Decoration Plate Holder Upper Assy (p 55) (p 57) (p 56) (p 57) ADF Unit/ Housing Right Housing Left...
  • Page 50 Epson WF-7520/7510/7010 series Revision A WF-7520/7510 series (p 49) ADF Unit Scanner Unit (p 57) Scanner Housing ADF Paper Guide ADF Stacker Upper Assy Upper Assy Cover ADF Right Cover (p 62) (p 57) ADF Rear Cover (p 57) Scanner FFC...
  • Page 51 Epson WF-7520/7510/7010 series Revision A WF-7010 series Screw Cover Left/ Waste Ink Tray Cover Open Paper Stopper Decoration Plate Printer Cover USB Cover Lower Case Foot Right Cover Sensor Cover Assy 2nd (p 56) (p 55) (p 56) (p 55)

  • Page 52: Printer Mechanism

    Epson WF-7520/7510/7010 series Revision A 4.2.2.2 Printer Mechanism (p 51, p 49) CR Scale / Holder Board Cartridge Cover Grounding Plate Wireless LAN Paper Guide Front Holder Cam Grounding Plate Stacker Assy Pressing Plate Right Torsion Spring Assy Hinge/Cartridge Module Assy 7.13...
  • Page 53 Epson WF-7520/7510/7010 series Revision A (p 52) WF-7520 series WF-7510 series WF-7010 series Grounding Plate Grounding Plate Grounding Plate Grounding Plate Power Supply Foot Foot Unit Right Ink System Assy Main Board Unit Paper Guide Paper Guide Front Paper Guide...
  • Page 54 Epson WF-7520/7510/7010 series Revision A (p 53) (p 53) (p 52) FAX Shield Plate/ Extension Spring Frame Pickup Main Board Unit (Paper Guide FAX Connector Assy Cover Upper) Front Frame Assy (p 64) (p 61) (p 61) Holder Cam Assy...

  • Page 55: Detailed Disassembly/Reassembly Procedure For Each Part/Unit

    Epson WF-7520/7510/7010 series Revision A 4.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit USB Cover (WF-7520/7510 series) USB Cover (WF-7010 series) Waste Ink Tray Assy Waste Ink Tray Cover (WF-7520/7010 series) USB Cover Bottom USB Cover Waste Ink Tray Assy Section A...
  • Page 56 Epson WF-7520/7510/7010 series Revision A Panel Unit (WF-7520/7510 series) Panel Housing Lower Panel Unit / Decoration Plate (WF-7010 series) Lower Case Bottom of Frame Base Assy Lower Case Frame Base Assy (WF-7510 series) Panel Unit Panel Unit Panel FFC Left...
  • Page 57 Epson WF-7520/7510/7010 series Revision A ADF Unit (1) (WF-7520/7510 series) ADF Unit (2) (WF-7520/7510 series) ADF Front Cover ADF Document Support Link Lever ADF Paper Guide Upper Assy ADF Right Cover Insert dowel of ADF Document Support. Release hooks/dowels of ADF Front Cover in the order shown above.
  • Page 58 Epson WF-7520/7510/7010 series Revision A ADF Cover (WF-7520/7510 series) ADF LD Assy (WF-7520/7510 series) Main Board Unit Wireless LAN Module Left Right Cover Lock Release MAC Address Label Middle Link Main Board Unit Wireless LAN Module ADF Paper Guide Upper Assy...
  • Page 59 Epson WF-7520/7510/7010 series Revision A Paper Stopper Assy 1st / 2nd (1) Paper Stopper Assy 1st / 2nd (2) Paper Guide Stopper Assy 1st Paper Guide Stopper Assy 2nd (WF-7520/7010 series) WF-7520/7510/7010 series Compression Spring 0.9 Paper Guide Stopper Assy 1st Paper Stopper Assy 1st Secure springs (x4) with dowels.
  • Page 60 For WF-7520/7510/7010 series, the structure of the frame supporting the CR Unit has been changed, therefore, there is no need to use the printhead supporting tool used for Epson C.B.P-TITE SCREW 3x8 F/ZN-3C (6 ± 1 kgf·cm) WorkForce 840/Epson Stylus Office BX925FWD and so on when reassembling the Printhead.
  • Page 61 Frame Base Assy, it is not necessary to use the paper guide In this manual, the Paper Guide Upper Center Assy, Paper Guide front supporting tools used for Epson WorkForce 635/Epson Stylus Upper Left Assy and Paper Guide Upper Right Assy are Office TX620FWD/Epson Stylus Office BX625FWD/ME C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ±...
  • Page 62 Epson WF-7520/7510/7010 series Revision A PF Timing Belt Panel Housing Upper Assy (WF-7520/7510 series) Panel Lever Spacer Panel Gear PF Timing Belt PF Pulley Panel Housing Lower EJ Pulley Panel Housing Upper Assy PF Motor Plate PF Tension Plate Step 2...

  • Page 63: Routing Ffcs/Cables

    Epson WF-7520/7510/7010 series Revision A 4.4 Routing FFCs/cables Housing Upper PF Encoder FFC Paper Guide Stopper Assy 1st WF-7520/7510 series WF-7010 series Rear right Panel FFC Rear right Back Cover Open Sensor Housing Upper Cover Open Sensor cable Frame Base Assy...
  • Page 64 Epson WF-7520/7510/7010 series Revision A Inside the USB Cover (ADF Unit/Scanner Unit related cables: WF-7520/7510 series) 2nd Bin Base Assy (WF-7520/7010 series) Top: Before ADF / Scanner Unit is installed Secure ADF grounding wire and Scanner Fig. 1 Bottom of 2nd Bin Base Assy grounding wire together with the screw.
  • Page 65 Epson WF-7520/7510/7010 series Revision A Main Board Unit (1) Main Board Unit (2) Connector Back Back CN13 ber of Name Head FFC Color Frame Base Assy Main Board Unit pins CN11 CN11 White Scanner Motor cable CN12 CN12 Black FAX FFC...
  • Page 66 Epson WF-7520/7510/7010 series Revision A Scanner Motor Assy Bottom of the Scanner Unit Scanner FFC Before Scanner Motor Assy is installed After Scanner Motor Assy is installed Before Scanner FFC Cover is installed Step 3 Connector Step 5 Scanner FFC...

  • Page 67: Connector Summary

    Epson WF-7520/7510/7010 series Revision A 4.5 Connector Summary Cable connections of this printer are shown below. CR Unit CSIC PW Sensor FAX Board ( WF-7520/7510 series ) CR Contact Module Printhead CR Encoder Board CA69 IF CN16 Cover Open Sensor...

  • Page 68: Chapter 5 Adjustment

    CHAPTER 5 ADJUSTMENT...

  • Page 69: Required Adjustments

     In this chapter, the product names are called as follows: • WF-7520 series: Epson WF-7525/Epson WF-7521/Epson WF-7520 • WF-7510 series: Epson WF-7515/Epson WF-7511/Epson WF-7510 • WF-7010 series: Epson WF-7018/Epson WF-7015/Epson WF-7012/Epson WF-7011/ Epson WF-7010 ...
  • Page 70 Epson WF-7520/7510/7010 series Revision A Table 5-1. Required Adjustment List (Mechanism Adjustment) Adjustment Type Mechanism adjustment Priority PF Timing Belt tension Scanner Timing Belt Adjustment Item Checking the platen gap check tension check Check if the tension of the Check if the PG is within...
  • Page 71 Epson WF-7520/7510/7010 series Revision A Table 5-2. Required Adjustment List (Adjustment using the Adjustment Program) Adjustment Type Adjustment using the Adjustment Program Priority Initialize First dot position / PW CR motor PF motor ASF motor Scanner PE adjustment Head PF / EJ...
  • Page 72 Epson WF-7520/7510/7010 series Revision A Table 5-2. Required Adjustment List (Adjustment using the Adjustment Program) Adjustment Type Adjustment using the Adjustment Program Priority Initialize First dot position / PW CR motor PF motor ASF motor Scanner PE adjustment Head PF / EJ...
  • Page 73 Epson WF-7520/7510/7010 series Revision A Table 5-2. Required Adjustment List (Adjustment using the Adjustment Program) Adjustment Type Adjustment using the Adjustment Program Priority Initialize First dot position / PW CR motor PF motor ASF motor Scanner PE adjustment Head PF / EJ...
  • Page 74 Epson WF-7520/7510/7010 series Revision A Table 5-2. Required Adjustment List (Adjustment using the Adjustment Program) Adjustment Type Adjustment using the Adjustment Program Priority Initialize First dot position / PW CR motor PF motor ASF motor Scanner PE adjustment Head PF / EJ...

  • Page 75: Details Of Adjustments

    Epson WF-7520/7510/7010 series Revision A 5.2 Details of Adjustments This section provides adjustment procedures for which explanation in details is necessary. See “5.1 Required Adjustments (p69)” for the adjustments not explained here. 5.2.1 PF Timing Belt Tension Check This section describes PF Timing Belt tension check.

  • Page 76: Checking The Platen Gap

    Epson WF-7520/7510/7010 series Revision A 5.2.2 Checking the Platen Gap This section describes the procedure for checking the platen gap (PG) necessary when removing the Printhead or in a similar case.  This printer does not have any PG adjustment mechanism, however, it is designed so that the platen gap can fall within the expected range if you correctly reassemble the unit according to this manual.

  • Page 77: Scanner Timing Belt Tension Check

    Epson WF-7520/7510/7010 series Revision A 5.2.3 Scanner Timing Belt Tension Check This section describes Scanner Timing Belt tension check.  This product is designed so that each tension of the Scanner Timing Belt falls within the expected range if you correctly reassemble the unit according to this manual. If the result does not fall within the standard range when measuring the belt tension in this section, reinstall or replace the related parts according to the instructions in this section.

  • Page 78: Mac Address Setting

    • If the user has set the printer’s MAC address on a router, the repaired printer with a new MAC address cannot be connected to the network. • The default printer name on a network consists of “EPSON” and the last six digits of the MAC address. Therefore, the printer name becomes different from the previous one.

  • Page 79: Chapter 6 Maintenance

    CHAPTER 6 MAINTENANCE...

  • Page 80: Overview

    Epson WF-7520/7510/7010 series Revision A 6.1 Overview This section provides information to maintain the printer in its optimum condition. 6.1.1 Cleaning Except for the printhead, there are no other mechanical parts or units that require periodic cleaning. However, if need arises, clean the component observing the following instructions.

  • Page 81: Lubrication Points And Instructions

    Epson WF-7520/7510/7010 series Revision A 6.2 Lubrication Points and Instructions <Lubrication Point> <Lubrication Point> Back Front 1. Ribs (x3) on the Paper 1. Bearing of the Driven Guide Front Assy Driven Pulley Holder Pulley Holder (x2) (Contact points with the PF Driven Pulley Holder 2.
  • Page 82 Epson WF-7520/7510/7010 series Revision A <Lubrication Point> <Lubrication Point> Contact point (x1) on the Contact points (x4) on the rear of the Front Frame CR Guide Plate with the with the CR Unit CR Unit <Type> <Type> CR Guide Plate...
  • Page 83 Epson WF-7520/7510/7010 series Revision A <Lubrication Point> <Lubrication Point> Shaft of the Middle Roller 1. Grooves of the slider Slider Base base (contact points with <Type> Cam Slider the Cam Slider) Middle Roller G-71 2. Cam Slider <Application Amount> <Type>...
  • Page 84 Epson WF-7520/7510/7010 series Revision A <Lubrication Point> Grooves on the bottom of the Scanner Carriage (x4) <Type> G-45 Scanner Carriage <Application Amount>  5 mm x appropriate amount x 4 points <Remarks> Apply with injector. Application Point Figure 6-15. Lubrication of the Scanner Carriage...

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