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!

  Victoria Parvanova 2024-07-20 14:43:05  
  I saved the printer of my boyfriend a few years ago with the trial key and he was so happy that he gifted it to me. Now I decided to give the same printer one more chance and it worked again, saving me 300 euro for the price of 14 within 5 minutes. I also changed the pads by the way did not just reset the software and I recomend you to do that as well. Super easy to use and worth the money! Last but not least a really sustainable solution, allowing us to use a device which otherwise would be throuwn away.
  Gawayne Kindness 2010-12-06 07:47:48  
  My Epson Artisan 700 Waste ink pad warning sign came on and i didn't know what to do, searched Google for hours and nothing seemed to work until i found this program. Wonderful program, you saved me aalllooottttt!!!
  Sherrylee Abrejera 2021-02-19 04:48:05  
  Hi, I want to ask how will I know if my printer can be modified to chip less printer. I have an Epson 4730, I purchase it last year September but I am trying the compatible cartridge on it but it didn't work. So I am worried that if I buy the activation key, it will not work too.
  talant 51 2020-02-01 16:53:00  
  i reset with the key that i got and nothing worked. it still shows that the carts are not genuine. what a waste of time. it sat here for 12 hours on the "do not turn off printer" epson wf-7210.... give me back the $30 i spent or give me more keys to try again. order #18740047

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According to your Order number - You have purchased RESET Key ($9.99) which is required for Wate Ink Counters reset. If You want to downgrade firmware - You have to buy FIRMWARE Key ($19.99)
  eduar faundes 2020-08-22 19:39:55  
  My XP-4100 printer has recognized the old (but new) empty cartridge, I can also refill it with a syringe. This is a good economic solution.
  ruth atieno 2023-08-17 10:04:29  
  my epson l3111 is a good printer that i hve been using - thank you for quick solution
  joe sanabria 2012-11-21 20:22:04  
  Hi john: I wouldlike to let you know that i bought another reset key from yoy site and it worked with onother workforce 840 I owned. i think the problem with the other printer workforce 840 was that I used the reset key epson has in their website some times and probably it bloked the printer. Just for you to know and to let you know this time worked with another 840 I own Thank you for your understanding and for refunding the money when did not work. It says a lot of you business reputation
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