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This Epson CX4100, CX4200, CX4700, CX4800, DX4200, DX4800, DX4850, PXA650 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 circuits
• Parts List
• Exploded diagram

FORMAT: High resolution PDF document!

Zip archive: PdF document 15 541 kB

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

Cheryl Riley	2019-09-16 23:55:34
Hi John, I just want to thank you so much for the reset key and software.  I paid you $9.99 to get those lights to stop flashing and it the software worked in a matter of minutes!  I really appreciate your service, without it I would have to buy a new printer (which I don't want to do right now!). Thank you again, you provide a great service. Cheryl

Free Spencer	2020-01-22 02:55:20
this is very great. I have fix the problem in just a minute and it works perfectly. I tried other resetter but this one is good and fast. Reliable and hassle free. Thank you and you have my big thanks for this.

Michael Presswell	2013-03-28 12:54:39
I was tearing my hair out trying to get a solution for my Epson R265. Other solutions didn't work and were not compatible with Vista Home Basic. The WIC Reset Utility worked like a charm! In just a few moments - I'm off to buy a waste ink device so I can get a lot more service from my machine.

MIZIKE G.

2025-11-14 16:23:29

11-14-2025 - I JUST USED THE DOWNLOADED UTLITY PROGRAM AND BOUGHT THEIR $9.99 CODE FOR PURPOSE OF RESETTING THE INK WASTE COUNTER BULLSHIT ( EPSON ET-4550 SEVERAL YEARS OLD ) WHICH I NEVER HEARD OF UNTIL LAST WEEK WHEN THE PRINTER WOULDN'T DO ANYTHING BUT TELL ME TO CONTACT EPSON. LOL- NOPE - CHAT GTP GAVE ME THE INFO FROM HERE, USED IT AND WORKED - TOOK ABOUT 5 MINUTES - ( I HOWEVER - DIDNT ACTUALLY CLEAN OR EMPTY THE INK WASTE OR WHATEVER - IM HOPING FOR THE BEST, ASSUMING ITS OLD ENOUGH THAT IT HAS DRYED ON ITS OWN. - THIS PART ISNT RECCOMENDED TO MY UNDERSTANDING - BUT ILL FIND OUT I SUPPOSE) BUT LONG STORY SHORT - EAST TO USE DOWNLOADED UTILITY, AND RESET KEY FOR 10 BUCKS WORKED - ABOUT 5 MINUTES OR LESS PROCESS. REAL SHIT - MIZIKE

Nicholas Setorwofia	2010-05-10 15:45:28
It is good to have website like this!

Nary Preng	2008-02-07 19:36:04
I want to know this program before i buy it. Can you explain me about your program i had many problem with my printer of Epson R270.

david simpson	2012-10-29 03:26:46
Brilliant stuff,very informative,well illustrated,althought i have an electronice background anyone could follow this very easily,a lot of thought & effort gone into this,welldone

Jens Potschadtke

2019-03-17 19:04:30

Worked hassle free with my Epson XP-55 . I am very thankful that you provide the SW tool also for Linux as I have gone Microsoft-free at home. It's cool that you provide a trial license to check out, whether the counter reset works in your setup (I admit I was sceptical). It worked for me and I immediatly ordered the full license. The good thing is: as it is pure SW, it works also on weekends, when you need to print urgently and that stupid printer decided to not let you print any more!