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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!

Edward Parker	2025-05-26 16:15:56
Thank you for your service! Took awhile to figure it all out but I think I got it. Thank you!

Sergio Garcia	2007-05-18 17:20:33
Did you have this product for windows vista?, because this product dont work. Please notify me when an update for windows vista is alreadady. Thanks. Sergio Garcia unosergr@prodigy.net.mx

Mervyn Scott	2025-07-24 01:57:20
Instruction videos very helpful, reset key worked great. Thanks.

Billy Binns	2010-10-10 17:03:27
Great product, once I had the key the problem was sorted in less than 5 minutes Thank you, Billy @ PISIFI

fena can	2011-02-06 15:02:51
Very prompt and easy service. I did it by myself in 3 min! You have saved me my money/ Thnx.

Philip George	2011-05-05 02:15:19
Worked like a champ on my Epson Artisan 700. . Thanks!

Paul Jumbo

2019-04-19 18:47:57

I had Epson WF-2650 and it wasn't printing fully, skipping lines, even though colors were full. I did a lot of cleaning, head cleaning, put new cartridge but no luck. I did some head cleaning using glass cleaner and syringes as shown on various youtube video. After that, my printer didn't recognize two of the cartridges. I tried everything, cleaning contacts etc, nothing worked. I was finally going to buy new cartridges however stores were closed today so I decided to look for chip-resetting tool but nothing good was available locally. I came across this WIC reset utility and was really skeptical if it will work. I took the chance, bought the key, used the tool to reset firmware to chipless firmware, it was successful at the first go. At this point, printer showed all ink levels 100%. I printed a test page and it came out perfect. To make it even more interesting for me, I live in Europe and during one of the trip, I bought two sets of XL cartridges for this same model but printer didn't recognize in the past and I was going to throw them since these were no good for my EU model. I tried these again after chip reset firmware and voila, they works too. I am amazed at the propaganda of these printer manufactures that even original printer cartridges from US didn't work on the model here in EUROPE, these used to fit perfectly but printer wouldn't recognize however, now they works too. Today, I was almost ready to trash my 2.5 yr old and not much used printer but after a lot of trying and finally using WIC reset utility, the printers works like new and saved me a lot! These were the best 20 CHF/USD I spent today! Thank you very much and I don't need to worry about relying on a hardware chip-reset tool. I will now be able to use US model cartridges and re-fill i like without having to worry. I even printed some photos using this same printer on photo paper today and printer did an excellent job.