Stylus Photo 925 Printer
Service Manual

$9.99
Stylus Photo 925 Printer <br> Service Manual
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This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the printer. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page

This manual consists of six chapters and Appendix

CHAPTER 1.PRODUCT DESCRIPTIONS
Provides a general overview and specifications of theproduct

CHAPTER 2.OPERATING PRINCIPLES
Describes the theory of electrical and mechanical operations of the product

CHAPTER 3.TROUBLESHOOTING
Describes the step-by-step procedures for the troubleshooting

CHAPTER 4.DISASSEMBLY / ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling the product

CHAPTER 5.ADJUSTMENT
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

CHAPTER 7.APPENDIX
Provides the following additional information for reference:
• Connector pin assignments
• Electric circuit boards components layout
• Electrical circuit boards schematics
• Exploded diagram & Parts List

PRODUCT DESCRIPTION
FEATURES
SPECIFICATIONS
Physical Specification
Printing Specification
Paper Feeding
Paper Specification
Plain Paper
Envelope
Exclusive paper
Printing Area
Cut Sheet
Envelopes
Ink Cartridge Specification
Black Ink Cartridge
Color Ink Cartridge
Electric Specification
Environmental Condition
Reliability
Safety Approvals
Acoustic Noise
CE Marking
INTERFACE
Parallel Interface (Forward Channel)
Parallel Interface (Reserve Channel)
USB Interface
Prevention Hosts of Data Transfer Time-out
Interface Selection
IEEE1284.4 Protocol
PANEL CONTROL
Indicators (LEDs)
Panel Functions
Printer Condition and Panel Status
Error Status
Printer Initialization

Operating Principles
Overview
Printer Mechanism
Printhead
Printing Process
Printing Method
Carriage Mechanism
Paper Loading/Feeding Mechanism
Paper Loading Mechanism (ASF unit)
Paper Feeding Mechanism
Ink System Mechanism
Capping Mechanism
Pump unit mechanism
Ink Sequence
Electrical Circuit Operating Principles
C417 PSB/PSE board
C418 MAIN/MAIN-B Board
Main Elements
Printhead Driver Circuit
PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit
CR Motor Driver Circuit
Reset Circuit
EEPROM Control Circuit
Sensor Circuit

Troubleshooting
Overview
Troubleshooting with LED Error Indications
and Status Monitor 3 Message
Unit Level Troubleshooting

Disassembly and Assembly
Overview
Precautions
Tools
Screws
Work Completion Check
Disassembly
Upper housing removal
Printhead removal
CR unit removal
CR motor removal
ASF unit removal
PSB/PSE unit removal
Holder shaft unit removal
Circuit board removal
Waste drain ink pad (under the ASF unit) removal
Lower housing removal
Caution regarding Ink system removal, PF roller
unit removal and PF motor removal
Ink system unit removal
(Cap unit, Pump unit & Waste drain ink pad)
PF roller unit removal
PF motor removal

Adjustment
Overview
Required Adjustment

Maintenance
Overview
Cleaning
Service Maintenance
Lubrication

Appendix
Connector Summary
Major Component Unit
EEPROM Address Map
Component Layout
Exploded Diagram
Parts List
Electrical Circuits


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ZIP archive: 7 768 kB

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We are in business since 2002 and do our best to give our customers perfect service!

  Mary-Ann Prinsloo 2022-07-19 12:17:16  
  Good day. I have to clean my printer head EVERY hour. Then it prints fine. Until I leave it for an hour. So this leads to waste pad full and I have to purchase a key every time. Is there another way to go around this problem please? I cannot afford to buy a key every week.

=======Reply ========
You have to make 2 things
- clean parking station first - then inks will not dry on printhead;
- use high quality inks.
  Alexey Scherbenko 2020-01-15 16:42:26  
  HELLO!!! Today I bought a key for updating the firmware of my SC P-600 printer. After activ ating the key, WIC started updating the firmware and the message "ROM is not writeable" popped up on the printer screen. Now when I power on printer - I get "Recovery mode". What can I do now?!

======Answer========

Please read how easily and quickly it can be solved -
www.wic.support/epson-wf-3720-stuck-in-recovery-mode-quick-and-esy-solution/
  mihail andronic 2017-10-25 08:24:10  
  Looks ok, working fine, save a lot of time in my case, finding a bad sensor in 15 minutes, but can not read counter information`s. Only can reset.
  essa albadi 2015-04-03 22:02:09  
  All I can say is THANK YOU!! Thank you for allowing me to roll back (downgrade) my Epson XP-410 printer\'s firmware with ease!! A couple of clicks, and I was downgraded. This allowed me to use non-oem cartridges that would not work no matter what I tried with current firmware (Epson updated firmware just to battle the use of non-oem cartridges). The money spent will be saved with the very first refill of these refillable cartridges I bought. I was skeptical, but it really was THAT easy! Winning the battle against Epson!! First time I\'ve ever paid for a \"hack\", well worth it!
  Elvir Bafto 2010-08-26 01:17:35  
  Just bought reset key for Epson Photo 1410 with CIS system. Tested works fantastic best $10 bucks spent. Highly Recomended Product.
  Nicole Stinchcomb 2023-03-28 20:58:48  
  Used my reset key for my Epson 2720 and it worked! Thanks!
  muhammad nadeem 2015-05-11 11:34:34  
  Ok I used your reset system ,after trying the Epson one, YO
  George Chege 2016-02-16 20:03:14  
  The key you provided worked exactly as advertised and I was able to unlock our PP-100 and resume use. Thank you so much for your response and excellent product!
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