Epson WF-7520, WF-7510, WF-7010 Service Manual
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
Notice:
All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or
by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of
SEIKO EPSON CORPORATION.
All effort 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.
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.
Note :Other product names used herein are for identification purpose only and may be trademarks or registered
trademarks of their respective owners. EPSON disclaims any and all rights in those marks.
Copyright 2011 SEIKO EPSON CORPORATION
I&I CS Quality Assurance Department
Safety Precautions
All safety procedures described here shall be strictly adhered to by all parties servicing and maintaining this
product.
DANGER
Strictly observe the following cautions. Failure to comply could result in serious bodily injury or loss of life.
1. Always disconnect the product from the power source and peripheral devices when servicing the product or
performing maintenance.
2. When performing works described in this manual, do not connect to a power source until instructed to do so.
Connecting to a power source causes high voltage in the power supply unit and some electronic components
even if the product power switch is off. If you need to perform the work with the power cable connected to a
power source, use extreme caution to avoid electrical shock.
WARNING
Strictly observe the following cautions. Failure to comply may lead to personal injury or loss of life.
1. Always wear protective goggles for disassembly and reassembly to protect your eyes from ink in working. If
any ink gets in your eyes, wash your eyes with clean water and consult a doctor immediately.
2. When using compressed air products; such as air duster, for cleaning during repair and maintenance, the use
of such products containing flammable gas is prohibited.
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.
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.
5. The capacitors on the Main Board may be electrically charged right after the power turns off or after driving
motors which generates counter electromotive force such as when rotating the PF Roller or when moving the
CR Unit. There is a risk to damage the Main Board if the Head FFC is short-circuited with the capacitors on
the Main Board electrically charged, therefore, after the power turns off or after motors are driven, leave the
printer untouched for approximately 30 seconds to discharge the capacitors before starting disassembly/
reassembly.
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.
7. In order to protect sensitive microprocessors and circuitry, use static discharge equipment, such as anti-static
wrist straps, when accessing internal components.
8. 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.
9. Never touch the ink or wasted ink with bare hands. If ink comes into contact with your skin, wash it off with
soap and water immediately. If you have a skin irritation, consult a doctor immediately.
10. When disassembling or assembling this product, make sure to wear gloves to avoid injuries from metal parts
with sharp edges.
11. Use only recommended tools for disassembling, assembling or adjusting the printer.
12. Observe the specified torque when tightening screws.
13. Be extremely careful not to scratch or contaminate the following parts.
Nozzle plate of the printhead
CR Scale
PF Scale
Coated surface of the PF Roller
Gears
Rollers
LCD
Scanner Sensor
Exterior parts
14. Never use oil or grease other than those specified in this manual. Use of different types of oil or grease may
damage the component or give bad influence on the printer function.
15. Apply the specified amount of grease described in this manual.
16. Make the specified adjustments when you disassemble the printer.
17. When cleaning this product, follow the procedure described in this manual.
18. When transporting this product after filling the ink in the printhead, pack the printer without removing the
ink cartridges in order to prevent the printhead from drying out.
19. Make sure to install antivirus software in the computers used for the service support activities.
20. Keep the virus pattern file of antivirus software up-to-date.
21. When disassembling/reassembling this product, if you find adhesive power of the double-sided tape which
secure the parts or FFC is not enough, replace the tape with new one and attach it correctly to the specified
points where the parts or FFC should be secured.
22. Unless otherwise specified in this manual, the labels attached on the returned product should be transferred to
the corresponding attachment positions on the new one referring to the labels on the returned product.
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. OPERATING PRINCIPLES
Describes the theory of mechanical operations of the product.
CHAPTER 3. TROUBLESHOOTING
Describes the step-by-step procedures for the troubleshooting.
CHAPTER 4. DISASSEMBLY / REASSEMBLY
Describes the disassembly/reassembly procedures for main parts/units of the product.
CHAPTER 5. ADJUSTMENT
Describes the required adjustments for servicing the product.
CHAPTER 6. MAINTENANCE
Describes maintenance items and procedures for servicing the product.
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. Pay attention to all symbols when they are
used, and always read explanation thoroughly and follow the instructions.
Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed,
could result in serious injury or loss of life.
Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed,
could result in bodily injury, damage or malfunction of equipment.
May indicate an operating or maintenance procedure, practice or condition that is necessary to
accomplish a task efficiently. It may also provide additional information that is related to a specific
subject, or comment on the results achieved through a previous action.
For Chapter 4 “Disassembly/Reassembly”, symbols other than indicated above are used to show additional
information for disassembly/reassembly. For the details on those symbols, see "4.2 Disassembly/Reassembly
Procedures (p46)".
Revision Status
Revision Date of Issue Description
A Aug. 24, 2011 First Release
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. ........................................................................................................................................... 14
1.4.2 LEDs and LCD Indications ............................................................................................................................. 16
1.5 Various Settings . ...................................................................................................................................................... 19
1.5.1 Panel Operation . .............................................................................................................................................. 19
1.5.1.1 Setup Menu Configuration (WF-7520/7510 series only) ....................................................................... 19
1.5.1.2 Forced Power OFF (WF-7010 series only)............................................................................................. 20
1.5.1.3 Printer Status Sheet ................................................................................................................................. 20
Chapter 2 Operating Principles
2.1 Overview . ................................................................................................................................................................. 22
2.2 Motors and Sensors . ................................................................................................................................................ 22
2.3 Optical Sensor Control . ............................................................................................................................................ 25
2.4 Power-On Sequence . ................................................................................................................................................ 26
Chapter 3 Troubleshooting
3.1 Troubleshooting. ....................................................................................................................................................... 30
3.1.1 Error Message List. .......................................................................................................................................... 30
3.1.2 Troubleshooting Workflow ............................................................................................................................. 31
3.1.3 Fatal Error Code . ............................................................................................................................................. 33
3.1.4 FAX Troubleshooting (WF-7520/7510 series only) ....................................................................................... 37
3.1.4.1 FAX Log ................................................................................................................................................. 37
3.1.4.2 Error Code/Superficial Phenomenon-Based Troubleshooting ............................................................... 42
Chapter 4 Disassembly/Reassembly
4.1 Overview . ................................................................................................................................................................. 45
4.1.1 Tools . ............................................................................................................................................................... 45
4.1.2 Jigs . .................................................................................................................................................................. 45
4.2 Disassembly/Reassembly Procedures . ..................................................................................................................... 46
4.2.1 Parts/Units Need to be Removed in Advance ................................................................................................. 46
4.2.2 Disassembling Flowchart ................................................................................................................................ 48
4.2.2.1 Exterior Parts . ......................................................................................................................................... 48
4.2.2.2 Printer Mechanism .................................................................................................................................. 52
4.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit............................................................................ 55
4.4 Routing FFCs/cables . ............................................................................................................................................... 63
4.5 Connector Summary . ................................................................................................................................................ 67
7
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. ..................................................................................................................................... 78
Chapter 6 Maintenance
6.1 Overview . ................................................................................................................................................................. 80
6.1.1 Cleaning . .......................................................................................................................................................... 80
6.1.2 Lubrication. ...................................................................................................................................................... 80
6.2 Lubrication Points and Instructions.......................................................................................................................... 81
8
CHAPTER 1
PRODUCT DESCRIPTION
Epson WF-7520/7510/7010 series Revision A
1.1 Features
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
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
Printer
Maximum print speed: 15 ppm (A4, monochrome, draft printing mode)
O6-Chip Turbo 2 Printhead (Black: 128 nozzles x 3, Color: 128 nozzles x 1 per color)
Maximum print resolution: 5760 x 1440 dpi
Auto duplex printing up to A3 paper with the Duplex Unit (WF-7520/7010 series only)
Four independent ink cartridges are installed (pigment inks)
Interface
In addition to USB connection, wired/wireless LAN connection are available
Scanner (WF-7520/7510 series only)
CIS type sensor (scanning resolution: 1200 x 2400 dpi)
ADF up to A3 paper scanning
Note"*": Auto duplex scanning is available only for WF-7520 series. (A4 or letter sized paper only)
*
Differences between the models
WF-7520/7510/7010 series are different as shown below.
Table 1-1. Differences between the Models
Item WF-7520 series WF-7510 series WF-7010 series
LCD display size 2.5 inch 2.5 inch No
Auto duplex printing Yes No Yes
Scanner / ADF Yes Yes No
USB host
(for PictBridge / Backup of an external storage device)
FAX Yes Yes No
Wi-Fi Yes Yes Yes
2nd cassette Yes No Yes
Note *: The availability of the WiFi varies depending on the destinations.
Available: EHC/Euro/CISMEA/ESP/ETT/EKL
Not available: EAL/Latin/EAL/ECC/EHK
Yes Yes No
*
Product description Features 10
Epson WF-7520/7510/7010 series Revision A
WF-7520 series WF-7510 series WF-7010 series
External view
Figure 1-1. External View
Table 1-2. Dimensions
Model Dimensions (W x D x H)
WF-7520 series 559 mm x 418 mm x 365 mm 18.9 kg
WF-7510 series 559 mm x 418 mm x 287 mm 15.6 kg
WF-7010 series 558 mm x 414 mm x 264 mm 12.3 kg
*1
Weight
*2
Note *1: Paper support for rear ASF and stacker are closed. Rubber feet are included.
*2: Excluding the weight of ink cartridges and power cable.
Product description Features 11
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)
Color Black, Cyan, Magenta, Yellow
Print direction Bi-directional minimum distance printing, Unidirectional printing
Print resolution Horizontal x Vertical (dpi)
• 360 x 120
• 360 x 360
• 360 x 720
Control code • ESC/P Raster command
• ESC/P-R (RGB) command
Input buffer size Printing from PC: 64 KBytes
Stand-alone printing: 132 KBytes
Paper feed method Friction feed
Paper feed amount 250 pages (plain paper*), 20 pages (photo paper), 50 pages (postcard)
Paper path Front feed, front out
PF interval 0.01764 mm (1/1440 inch)
• 720 x 720
• 1440 x 720
• 5760 x 1440
Note *: For paper thickness: 0.11 mm, 80 g/m2.
Product description Printing Specifications 12
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 CIS
Light source LED
Maximum document sizes A3 or US B (tabloid)
Scanning range 11.7” x 17” (297 mm x 431.8 mm)
Maximum resolution Main scan: 1,200 dpi
Sub scan: 2,400 dpi
Maximum effective pixels 14,040 x 20,400 pixels
Pixel depth 16 bit per pixel (input) and 1 bit or 8 bit per pixel (output)
Table 1-5. ADF Specifications
Item Specification
Document loading Face-up
Maximum document sizes A4 to A3/tabloid
Supported paper type Plain paper only
Paper thickness 64 to 95 g/m
Maximum number of documents which can be set 30 sheets or 3 mm at maximum
Document path Feeds from upper tray and ejects to lower tray
Document set position Center
Auto duplex scanning
Note *: WF-7520 series only
*
A4 or US Letter only
2
Product description Scanner Specifications (WF-7520/7510 series only) 13
Epson WF-7520/7510/7010 series Revision A
WF-7520 series only
1.4 Control Panel
1.4.1 Operation Buttons
The operation buttons, LEDs, and LCD are shown below. See Table 1-6 and Table 1-7 for the functions.
WF-7520/7510 series
Photo Fax
Print
Copy
Menu
Back
Stop
Start
Figure 1-2. Control Panel (WF-7520/7510 series)
Table 1-6. Operation Buttons, LEDs and LCD (WF-7520/7510 series)
Item Icon Name Function
LCD Indicates the printer status, error, and menu screen.
Power Turns the power on/off.
Photo Enters photo mode.
• Enters zoom setting screen for selected image.
• Switches preview screens on LCD.
• Selects menus.
• Specifies the number of copies.
• Moves the cursor in fax mode.
• Specifies the date/time
• Specifies the number of copies
• Specifies fax numbers
Button/
touch panel
Display/Crop
Copy Enters copy mode.
Reduce/Enlarge Specifies copy magnification.
Quality Specifies print quality.
2-Sided Specifies auto duplex print setting. (WF-7520 series only)
Setup Enters setup mode.
Help Displays help for solutions to problems.
Reset Resets the current setting and displays the home screen.
Arrows
OK Activates the setting you have selected.
Menu Displays detailed settings for each mode.
Back Cancels/returns to the previous menu.
Stop Stops printing.
-
,
,
Ten key
Scan
Start
Fax Enters fax mode.
Auto Answer Turns on/off auto answer mode.
Redial/Pause
• Displays the last number dialed.
• Inserts a pause symbol (-) when entering numbers in fax mode.
Speed Dial Displays speed dial list in fax mode.
Scan Enters scan mode.
Start Starts copying in each mode.
Product description Control Panel 14
Epson WF-7520/7510/7010 series Revision A
Note : The WiFi logo and button on the control panel vary
depending on the destinations. (See Table 1-1.)
Table 1-6. Operation Buttons, LEDs and LCD (WF-7520/7510 series)
Item Icon Name Function
Power
LED
Note : See "1.4.2 LEDs and LCD Indications (p16)" for more details about the LCD.
Network Indicates the network connection status.
Auto Answer On when the fax is in auto answer mode.
• Lights when the printer is on.
• Flashes when the printer is in process.
WF-7010 series
Figure 1-3. Control Panel (WF-7010 series)
Table 1-7. Operation Buttons and LEDs (WF-7010 series)
Item Icon Name Function
Power Turns the power on/off.
Network status sheet Prints a network status sheet.
---
Button
LED
Note : See "1.4.2 LEDs and LCD Indications (p16)" for more details about the LEDs.
Note *: The corresponding color LED is indicated.
Wi-Fi Configures the wireless network.
Paper feed/eject
Ink
Cancel Cancels printing during a print job.
Power
Network Indicates the network connection status.
Paper Indicates error status for paper.
*
Ink
• Loads or ejects paper.
• Resumes printing after a paper out error, multiple page feed error.
• Starts ink replacement.
• Starts head cleaning.
• Lights when the printer is on.
• Flashes when the printer is in process.
Indicates error status for ink.
Product description Control Panel 15
Epson WF-7520/7510/7010 series Revision A
1.4.2 LEDs and LCD Indications
Table 1-8. LEDs and LCD Indications
WF-7010 series WF-7520/7510 series
Operating
Status
LED
LCD Message
Power Network Paper Ink
Printer error. Turn power off and then on
again. For details, see your documentation or
visit Epson.com.
Paper jam inside, in back, or in ADF. Press
OK to see how to remove jammed paper.
Scanner error. Turn power off and then on
again. In the error is not fixed, visit
Printer fatal error
Printer fatal error
(paper jam)
Scanner fatal error
*1
Flash at
high speed
Flash at
high speed
Flash at
high speed
Flash at
high speed
Flash at
high speed
Flash at
high speed
--- --- --- ---
Flash at
high speed
Flash at
high speed
Epson.com for technical support.
ADF fatal error
ADF paper jam error
Waste ink pad end error Flash
Waste ink pad near end
error
Paper jam error Flash
No paper cassette error Flash
Paper out error Flash
Multi-feed error Flash
Paper length mismatch
error for duplex
printing
Paper size mismatch
error
Incorrect paper size
*1
error
Printer/printer driver
mismatch error
*1
*1
*3
--- --- --- --- Automatic Document Feeder (ADF) error.
--- --- --- ---
Alternate
flash 1
Alternate
flash 1
Flash
Flash
Flash
*2
*2
*2
*2
*2
*2
*2
*2
---
---
--- Flash ---
--- ON ---
--- ON ---
--- ON ---
--- ON ---
--- ON ---
Alternate
flash 2
Alternate
flash 2
Paper jam in the Automatic Document
Feeder (ADF).
A printer's ink pad is at the end of its service
life. Please contact Epson Support.
A printer's ink pad is nearing the end of its
service life. Please contact Epson Support.
Paper jam. Press OK to see how to remove
jammed paper.
Load Cassette correctly and press or
.
Paper out or paper jam. Check paper size and
load paper in paper cassette.
Multi-page feed error. Remove and reload
the paper, then press or .
Incorrect paper size detected. Load correct
paper size and press or .
No paper source matches paper size setting.
Load appropriate paper in Cassette 1. Press
or .
--- --- --- ---
Flash
*2
---
Flash at
high speed
Flash at
high speed
Paper size is incorrect. Load US B 11x17in
size plain paper in Cassette.
Error Press .
Cover open error Flash --- Flash 2 Flash 2 Close the scanner unit.
You need to replace the following ink
*4
cartridge(s).
Ink end error Flash
*2
--- --- ON
<Ink Cartridges>XXXXXXX
Ink cartridge detection
error
Flash
Ink cartridge detection
error (non-Epson
Flash
cartridge)
No ink cartridge error Flash
*2
*2
*2
--- --- ON
--- --- ON
--- --- ON
Cannot recognize the following cartridge(s).
*4
Try installing them again.
<Ink Cartridges>XXXXXXX
Ink cartridge is not recognized. Please
*4
replace the cartridge.
<Ink Cartridges>XXXXXXX
The cartridge is installed incorrectly. Press it
*4
down until it clicks.
<Ink Cartridges>XXXXXXX
*5
*5
*5
*5
Product description Control Panel 16
Epson WF-7520/7510/7010 series Revision A
Table 1-8. LEDs and LCD Indications
WF-7010 series WF-7520/7510 series
Operating
Status
LED
LCD Message
Power Network Paper Ink
Starting filling of ink
(after carriage moves)
Ink cartridge cover open
error
Flash --- --- ---
*2
Flash
--- --- ---
Starting initialization Flash --- --- ---
Replace the cartridge(s) and close the
scanner unit.
<Ink Cartridges>XXXXXXX
*5
The ink cartridge cover is open. Close the ink
cartridge cover.
Install the ink cartridges. See the setup sheet
for details.
Initializing...Please wait.
Initializing Flash --- --- ---
Do not turn off until initialization is
complete. This takes about 7 minutes.
Filling of ink Flash --- --- --- Charging ink...Please wait.
Checking ink cartridges Flash --- --- --- Checking the ink cartridges...
Drying 1st side
(printing from PC)
Flash --- --- ---
Printing 2-sided document. Do not touch the
paper in the output tray until printing is
complete.
Printing (PC) Flash --- --- --- Printing...
Printing nozzle check
pattern
Printing printer status
sheet
Flash --- --- --- Printing...
Flash --- --- --- Printing...
Printing (UPNP) Flash Flash --- --- Printing...
Receiving data Flash Flash --- --- Receiving data...
Canceling (PC)
*6
Flash --- --- --- Canceling...
Cleaning (PC) Flash --- --- --- Cleaning print head...Please wait.
Print head cleaning Flash --- --- --- Cleaning print head...Please wait.
Canceling nozzle check
pattern print
Canceling printer status
sheet print
Initializing network Flash
Waiting for network
initialization
Network initialization
(LED ON)
Network initialization
(LED OFF)
Preparing to update
firmware (cancel OK)
Updating firmware Flash
Flash --- --- --- Canceling...
Flash --- --- --- Canceling...
Flash
OFF
OFF
ON
*2
*2
*2
*2
*2
*7
Flash --- --- ---
--- --- --- ---
ON --- --- ---
OFF --- --- ---
Flash at
high speed
--- --- Preparing to update...
Updating firmware...Do not turn power off.
OFF OFF OFF
It turns off and on automatically when
complete.
Preparing to update
firmware
Canceling firmware
update
ON
ON
*2
*2
Flash at
high speed
Flash at
high speed
--- --- Preparing to update...
--- --- Canceling...
Product description Control Panel 17
Epson WF-7520/7510/7010 series Revision A
Table 1-8. LEDs and LCD Indications
WF-7010 series WF-7520/7510 series
Operating
Standby
Operating/
*8
Standby
Status
LED
LCD Message
Power Network Paper Ink
Powering OFF
Flash at
high speed
--- --- --- Turning off...
Powering ON Flash Flash --- --- Starting up...Please wait.
Feeding a paper
(load/eject)
Flash --- --- --- Printing...
No error ON --- --- --- ---
Ink level low ON
Waste ink pad near end
error
ON
Requiring ink cartridges
(carriage is at the
Flash --- --- ---
replacement position)
Ink end error
(during Bk mode)
Ink end error
(out of Bk mode)
ON
ON
No ink cartridge error ON
*2
*2
*2
*2
*2
--- --- Flash
---
Alternate
flash 1
--- --- ON
--- --- ON
--- --- ON
*4
Alternate
flash 2
*4
*4
*4
Ink low.
A printer's ink pad is nearing the end of its
service life. Please contact Epson Support.
Replace the cartridge(s) and close the
scanner unit.
<Ink Cartridges>XXXXXXX
You can temporarily copy, print and fax in
B&W on plain paper on the next job.
You need to replace the following ink
cartridge(s).
<Ink Cartridges>XXXXXXX
The cartridge is installed incorrectly. Press it
down until it clicks.
<Ink Cartridges>XXXXXXX
Ink cartridge detection
error
Ink cartridge detection
error (non-Epson
cartridge)
ON
ON
*2
*2
--- --- ON
--- --- ON
Cannot recognize the following cartridge(s).
*4
Try installing them again.
<Ink Cartridges>XXXXXXX
Ink cartridge is not recognized. Please
*4
replace the cartridge.
<Ink Cartridges>XXXXXXX
When starting up --- Flash --- --- ---
Not connected --- --- --- --- ---
Connected via wired
LAN (with IP)
--- ON --- --- ---
*5
*5
*5
*5
*5
Note : Flash Turns on and off at intervals of 1.25 seconds.
Flash 2 On for 0.5 sec., Off for 0.5 sec., On for 0.5 sec. and Off for 1.0 sec.
Flash at high speed Turns on and off at intervals of 0.5 seconds.
Alternate flash 1 Same as “Flash”
Alternate flash 2 Turns on and off at intervals of 1.25 seconds.
Note *1: WF-7520/7510 series only
*2: Flashes if the status arises when printing starts or when the printer starts up, but lights if the status arises when printing is
complete.
*3: WF-7520/7010 series only
*4: The corresponding ink LED flashes/lights.
*5: The corresponding ink cartridge product number is indicated.
*6: Occurs when cancelling printing from PC, UPNP printing.
*7: Lights and then flashes.
*8: This does not occur independently. Occurs together with operating or standby state.
Product description Control Panel 18
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)
Menu Description
Setup Ink Levels --- Displays the status of ink cartridges.
Maintenance Print Head Nozzle Check Prints a nozzle check pattern.
Print Head Cleaning Runs a print head cleaning.
Print Head Alignment Prints a gap adjustment pattern.
Ink Cartridge Replacement Starts ink cartridge replacement.
Printer Setup Paper Size Loaded
Sound Turns the sound on/off.
Screen Saver
Display Format Specifies display format for the images in the memory card.
Date/Time Selects display format for data/time.
Daylight Saving Time Selects daylight saving time.
Country/Region Selects country/region.
Language Selects the language displayed on the LCD.
Paper Size Notice
Wi-Fi/Network
Settings
File Sharing Setup USB
External Device
Setup
Print Status Sheet --- Prints a printer status sheet.
Restore Default
Settings
Wi-Fi Setup Selects a connection method for wireless LAN.
General Network Setup
Wi-Fi/Network Connection
Check
Confirm Network Settings • Displays the network information.
Wi-Fi/Network
Print Settings Configures the print and paper settings when printing an image in
Photo Adjustments Configures the color correction for photo.
Reset Fax Send/Receive
Settings
Reset Fax Data Settings Deletes the fax data settings.
Reset Wi-Fi/Network
Settings
Reset All except Wi-Fi/
Network & Fax Settings
Reset All Settings Initializes the all settings.
*1
*2
*1
Selects the paper size.
Configures the screen saver setting.
Checks the paper size and selects whether to alert users when an
error occurs (Off/On).
Configures the general setting for network.
• Checks the network connection status.
• Prints the connection check result.
• Prints a network status sheet.
Sets the access priority when accessing the storage device
connected to the USB host port to USB or Wi-Fi/Network.
external device.
Initializes the fax send/receive settings.
Initializes the Wi-Fi/network settings.
Initializes the settings except Wi-Fi/network/fax settings.
Note *1: WF-7520 series only
*2: Not available for some destinations.
Product description Various Settings 19
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.
Operation method
1. Press the power button and then stop button, and hold down the buttons for seven seconds or more.
2. When the Power LED starts flashing, release the buttons.
1.5.1.3 Printer Status Sheet
WF-7520/7510/7010 series print the printer status sheet by the following operation.
Table 1-10. Status Sheet
Model Procedure
WF-7520/7510 series 1. Press the setup button.
2. Select “Print Status Sheet” from the setup menu.
3. Press the OK button.
WF-7010 series Turn the power on while pressing the paper feed/eject button.
Note : When printing the network status sheet to check the network information, follow the procedure below.
WF-7520/7510 series: Select “Wi-Fi/Network Settings” - “Confirm Wi-Fi/Network Settings”, and press th
(See "1.5.1.1 Setup Menu Configuration (WF-7520/7510 series only) (p19) ".)
WF-7010 series: Press the “network status sheet” button. (See
"1.4.1 Operation Buttons (p14)"
.)
e OK butt
on.
Product description Various Settings 20
CHAPTER 2
OPERATING PRINCIPLES
Epson WF-7520/7510/7010 series Revision A
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Printhead
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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.
2.2 Motors and Sensors
The following table lists the motors and sensors of WF-7520/7510/7010 series.
Printer Mechanism
Table 2-1. List of Motors & Sensors (Printer Mechanism)
Mechanism Motor or Sensor No.
Printhead ---
Carriage mechanism CR Motor A
CR Encoder 1
PW Sensor 2
Cover Open Sensor 3
Paper loading/feed mechanism PF Motor B
PF Encoder 4
PE Sensor 5
Pre-PE Sensor 6
Paper Stopper Lever Sensor 1st 7
Figure 2-1. Motors & Sensors (Printer Mechanism)
Operating Principles Overview 22
Epson WF-7520/7510/7010 series Revision A
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2nd cassette (WF-7520/7010 series only)
Table 2-2. List of Motors & Sensors (2nd Cassette)
Mechanism Motor or Sensor No.
Paper loading/feed mechanism Pickup Motor A
Pickup Encoder 1
Paper Stopper Lever Sensor 2nd 2
Figure 2-2. Motors & Sensors (2nd Cassette)
Operating Principles Motors and Sensors 23
Epson WF-7520/7510/7010 series Revision A
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A
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3
Scanner (WF-7520/7510 series only)
Table 2-3. List of Motors & Sensors (Scanner)
Mechanism Motor or Sensor No.
Scanner mechanism Scanner Motor Assy A
CIS Unit 1
Figure 2-3. Motors & Sensors (Scanner)
Table 2-4. List of Motors & Sensors (ADF)
Mechanism Motor or Sensor No.
ADF mechanism ADF Motor A
ADF PE Sensor 1
ADF DOC Sensor 2
ADF Encoder 3
Figure 2-4. Motors & Sensors (ADF)
Operating Principles Motors and Sensors 24
Epson WF-7520/7510/7010 series Revision A
PF Encoder
With cover
Without cover (light-emitting
and receiving devices)
Left side of Printer Mechanism
PF Encoder
Light passes
Light does not pass
PF Scale
PF Timing Belt PF Motor
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.
1. Rotates the motors for control of the printer, and transmits drive force to the each part via the gear or the
timing belt.
2. The encoder reads the drive amount of each part from the scale one by one to printer to monitor that the part
drives for an adequate amount (time).
Controlled parts
The following table lists where the optical sensor control is used.
Table 2-5. Controlled Parts
Item Motor Scale Encoder Transmission method
PF/ASF (1st cassette) PF Motor PF Scale PF Encoder PF Timing Belt
CR CR Motor CR Scale CR Encoder CR Timing Belt
ASF (2nd cassette*2) Pickup Motor Pickup Scale Pickup Encoder Gear
*3
ADF
Note *1: See Fig. 2-1 (p22) and Fig. 2-2 (p23) for the positions of the parts.
*2: WF-7520/7010 series only
*3: WF-7520/7510 series only
ADF Motor ADF Scale ADF Encoder Gear
Operating principles
The following describes the PF drive control as an example of the actual operation for the optical sensor.
The PF scale consists of light-passing and light-blocking portions on its surface, and runs through the slit between
the encoder’s light-emitting and light-receiving devices. While the printer is operating, the encoder always emits
light from light-emitting device toward the light-receiving device, and the light-receiving device detects light when
the light is transmitted through the light-passing portion of the scale, and does not detect light when the light is
blocked by the light-blocking portion of the scale. According to the counts of light-detected and non detected times,
the printer controls paper feed drive direction and amount.
When the encoder cannot read light-emitting/blocking counts correctly due to the misalignment, broken or
contaminated scale, paper jam, foreign object and increasing a load, the fatal error occurs and the printer stops.
*1
Figure 2-5. PF Drive Control Section
Operating Principles Optical Sensor Control 25
Epson WF-7520/7510/7010 series Revision A
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130
130
130
130
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130
130
130
130
130
130
130
130
130
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.
Initial ink charge has finished and every cartridge has sufficient ink.
No paper on the paper path.
The Printhead is capped with the Cap of the Ink System Assy.
The Carriage is normally fixed by the CR Lock.
Condition 2: Power-on sequence after recovering from a paper jam error (See Table 2-7.)
Turning on the printer after turning it off with a paper jam error.
There still remains paper on the paper path out of the detecting area of the PE sensor.
Table 2-6. Condition 1: Normal Power-on Sequence
Operation
1. Printhead initialization
1-1.Initializes the Printhead, and checks for the fuse on the board in the Printhead.
*2
*4
*1
Carriage/PF Roller
movement and
position
*3
2. Checking for waste ink overflow
2-1.Checks the waste ink counter if the waste ink overflow is occurring.
3. Avoiding deadlock sequence
3-1.The carriage moves to the 0-digit side slowly and confirms it touches the Right Frame.
3-2.The carriage slightly moves to the 130-digit side slowly.
3-3.The PF Motor rotates clockwise, and releases the CR lock.
*5
4. Seeking the home position
4-1.The carriage moves to the 0-digit side slowly and confirms it touches the Right Frame. The position when it
touches the Right Frame is set as the origin position temporarily.
4-2.The carriage slowly moves to the CR lock set position.
4-3.The PF Motor rotates counterclockwise, and sets the CR lock.
4-4.The carriage moves to the 130-digit side slowly and confirms it touches the CR lock.
4-5.The carriage slowly moves toward the 0-digit side and reaches the CR lock set position.
4-6.The PF Motor rotates clockwise, and releases the CR lock.
4-7.The carriage moves to the 130-digit side slowly and confirms it does not touch the CR lock.
4-8.The carriage slowly moves to its home position, and the origin position is fixed.
Afterward, the carriage position is monitored according to the signals from the CR Encoder.
Operating Principles Power-On Sequence 26
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