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This Epson R320, PMD770 Service Manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the printer.

This manual consists of 4 chapters and Appendix.

CHAPTER 1. TROUBLESHOOTING
Describes the step-by-step procedures for the troubleshooting.

CHAPTER 2. DISASSEMBLY / ASSEMBLY
Describes the step-by-step procedures for disassembling and assembling the product.

CHAPTER 3. ADJUSTMENT
Provides Epson-approved methods for adjustment.

CHAPTER 4. 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:
• Electric circuits
• Exploded diagram

FORMAT: High resolution PDF document!

Zip archive: PdF document 12 023 kB

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

Jacek Rak	2019-10-20 20:13:27
Thank you! The trail reset key worked very well on my Epson Expression XP-610. I'll be back to buy a reset key.

TT Impact	2016-02-29 16:56:49
Key worked as charm, almost wrote off this guy after 15k pages, but it looks like it is back to business.

Melina Monita

2024-07-09 00:01:25

This is like Magic!! I decided to leave a positive review because it saved me so much time and heartache. I needed to finish a lastminute order and of course that's when my printer decided that my ink pad was full. I was panicking cuz I only had a couple hours to complete the order. I took a deep breath read and followed all the instructions from here and within five minutes my printer was printing again!! Thank you!! Will definitely come back when/if it happens again!

Ivan Tilbury

2015-09-08 06:01:35

I purchased the epson adjustment program last night and got to work on it today. I had a clog in C and it would not clear. I ve had my 4900 for over 2 years and have been able to handle them until now. I learned about this site from another site that has cleaner for the 4900 and said I need to buy this software first. I bought it and tried it with the epson ink that was in my printer. I ran the adjustment and it cleared C but then there were other clogs. Because they werent clogged before I started, I cleared them the normal way through the printers options. Had they not cleared, I would have ran the adjustment again. I had tried everything to get C to clear for a week and this program did it in one try! I would highly recommend this for clearing a stubborn clog. And now it is in my arsenal if I get another one that I cant clear down the road. By the way, it does not work if your printer is networked. Mine was so I had to move a computer into the room with my printer, directly connect to it and install the drivers. Then it work fine. If you got a clog that you cant fix, just buy it.

Claudia Díaz	2020-06-14 01:34:36
This update helps to recognize compatible cartridges or continuous system with self-resetting chip that I stopped recognizing due to firmware update in Epson WF-7510 Printer.

Rudi Einstein	2021-02-11 14:04:53
Hat auf Anhieb funktioniert !! Danke erstmal für die TRIAL Version , ich kann wieder drucken. (diese Raubritter von Ep...ctc.) Die Vollversion werde ich demnächst sicher kaufen. Gruß Rudi

brad bynum	2019-05-28 09:12:10
This thing works. I am very happy my printer is working again.

thammasan jitpradubchoke	2011-07-04 02:57:11
good product and great software thank you for develope this software can help me alot for use printer with ink tank