Stylus Color 440, 640, 740 Printers
Service Manual

$6.99
Stylus Color 440, 640, 740 Printers<br> Service Manual
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This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of Stylus Color 440/640/740. 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.

The chapters are organized as follows:

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

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

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

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

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
• Electric circuit boards components layout
• Exploded diagram
• Electrical circuit boards schematics

FORMAT: High resolution PDF document!
ZIP archive: 4 278
kB

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

  Preda Alexandru 2020-09-26 22:03:18  
  Can confirm that chipless procedure works! Thank You!
  yoni takie 2005-02-14 10:20:07  
  Please send me service manuals of NP's IR's and other canon products.
  elsie valle 2011-07-17 16:35:23  
  thanks so much found what i had to do finally worked great again a big thanks now have to figure out why my printer won't accept the continous ink that i was using hhmmm1! but a big thank to this great web sight very helpful
  star link 2019-08-31 04:22:56  
  Works slick...and why shouldn't they make some $$ for their key and Utility? I appreciate not having to send the printer to Tech support or buy a new one like Epson suggests- when it was a piece of cake to do myself.
  Jack Vikati 2025-03-17 02:23:07  
  Reset key itself WORKS, hurrah! 5 stars. BUT . . . it was a struggle to get the download. Our MacBook which is a few years old does not allow the download to be installed because Apple blocks "unrecognized developers." That should be taken care of or a warning should be placed on all promotional materials related to WIC RESET KEY. I was able to get the download onto my old Apple desktop which has not had operating system updates. That's how I finally purchased the reset key. Please tell me why the whole business of the reset key, after replacing the ink pads, is not an example of contrived malicious obsolescence? I was tied up for hours, cursing the Epson company, and a breath away from buying a new printer, adding plastic waste into our environment. I liken my experience to changing a car's oil filter and then needing a code to start the car again.
  Stan Thunder 2011-11-30 01:08:34  
  Always concerned that these things don't work but this time - really happy to say the long distance (USA-UK) fix worked perfectly. Thanks and kind regards
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