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This Epson RX620, RX630, PMA870 Service Manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the printer.

This manual consists of 6 chapters and Appendix.

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

CHAPTER 2. OPERATION 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.

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

FORMAT: High resolution PDF document!

Zip archive: PdF document 8 310 kB

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

Melissa Varner	2023-10-15 04:51:04
Very simple to perform on my Epson ET 2760. I received the ink pad reached its end-of-life error message on my printer. I replaced the Maintenace box and then used the reset key I purchased, and it seems to have fixed the issue.

muhammad nadeem	2015-05-11 11:34:34
Ok I used your reset system ,after trying the Epson one, YO

James Vale

2013-01-19 18:39:59

Excellent , i was a bit dubious about buying a key in case it didn't work or that it could be a con , but im very very happy i did get this utility & purchased a key . I used this utility to reset my Epson SX-110 which was giving me the message " ink pads had reached the end of their life " & needed service i ain't paying £49.99 just to have a sponge replaced , so a big THANK YOU for the tool & I WILL TELL MY FRIENDS WHO HAVE PRINTERS ALL ABOUT YOU .

Jhazmin Raya

2020-08-18 20:35:17

I have modified the firmware of an Epson wf3620 with the firmware key to make the printer run with chipless ink cartridges. The instructions were clear but must be followed exactly in order for the process to be successful. I am very happy with the result as I have the freedom to use oem ink or not depending on my needs. No oem cartridges now work perfectly well. Well done wic utility people. regds, Peter.

ahmet deveci	2010-11-04 14:42:57
HI JUST A THANK YOU JUST INSTALLED AND RAN PROGRAM,EVERYTHING OKAY SO EASY OFF NOW TO FIX A WASTE TANK THANKS AHMET