NP 6621 Copier
Service Manual

$9.99
NP 6621 Copier<br> Service Manual
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NP 6621 Copier SERVICE MANUAL

This Service Manual provides basic facts and figures you will need to service the plain paper copier NP6621 in the field.
The NP6621 is designed to enable automated copying work and may be configured with the following accessory; for servicing information on the sorter, ADF, and control card, see their respective Service Manuals:
1. Cassette Feeding Module-B2
2. Cassette Feeding Module-A2
3. Cassette Feeding Unit-K1
4. Paper Deck Pedestal-K1
5. Control Card IV N
6. ADF-E1
7. RDF-F1
8. Stapler Sorter-D1
9. Sorter 10-B1
10. Remote Diagnostic Device II

This Service Manual contains descriptions on the 1-Cassette Feeding Unit-B1 and the 2-Cassette Feeding
Unit-A2.

Note:
The Cassette Feeding Unit-B2, the Cassette Feeding Unit-A2 the cassette feeding Unit K1, the Paper Deck Pedestal-K1 and Remote Diagnostic Device II may not be available for sale in some areas.

This Service Manual is organized as follows:

CHAPTER 1
“General Introduction,” explains the NP6621’s features, specifications, and step-by-step instructions on how to operate the copier.

CHAPTER 2
“Copying Processes,” shows how the NP6621 generates copies while discussing each of the steps involved.

CHAPTER 3
“Operations and Timing,” explains the NP6621’s mechanical system by function and principles behind its electrical system in relation to timing of each operation.

CHAPTER 4
“Mechanical System,” provides instructions on how to disassemble/assemble and adjust the NP6621.

CHAPTER 5
“Installation,” provides points to note when selecting the site of installation and instructions on how to install the NP6621.

CHAPTER 6
‘Maintenance and Inspection,” gives tables of periodically replaced parts and consumables/durables as well as a scheduled servicing chart.

APPENDIX contains a general timing chart, general circuit diagrams, and PCB diagrams.

FORMAT: High resolution PDF document!
ZIP archive: 3 724 kB

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

  mehmet ramiz alp 2019-10-17 06:50:32  
  Thank you so much for this trail. your service is very good. my printer was not working from two three weeks. then i found this app. once again thanks a lot.
  Patrick Blom Bachstein 2016-02-25 19:28:33  
  So had my Epson Pro 4900 disconnected from powersupply for about a month and a half, due to new facilities in my studio. Powered it up, printed a nozzle check, and banged my head against the wall! Only magenta and light cyan did appear, and two broken lines of photo black. Did the Windex trick 5-8 times, and at the 16. nozzlecheck, 9 colours appeared, BUT some actually has got worse, the more Windex the head had.
Preparing myself on making a stronger brew for the cleaning (a lot of Googling and reading!), I came across the Service Program. Reluctant to spill ~ 150 ml of ink, I first moved along (also, the website seemed shady, however, alot of mentions on various foras).

Today I decided \'What the heck, 30 bucks, if it doesn\'t work, I\'ll survive\', so I purchased a license, installed on a laptop (with USB connection instead of network), and chose the option to prime the left channels first - and WOW: EVERY nozzle on that side now fired, and made an (99%) perfect nozzle check. So did the other side, when finished filling the lines again.
So: 5 f*cking huge stars from me! :)
Thank you for this wonderful utility!
  bad boy 2019-08-26 17:44:39  
  I need a key for a Canon G1100, it´s the same key for serie G1000? and when I try to buy say EPSON Art700, what can I do? I need a key for my canon
  LI XIAO 2019-09-23 20:26:25  
  Hi, Is there somebody has printer type MG7150 ? If yes, what's solution to reset counter because I have code 1700 on the screen ? Many thanks Pascal
  NaTiallie Henry 2012-01-05 00:31:30  
  I am so happy! This utility is amazing! Thank you for creating it Mac users too! Perfect! My printer is working! So happy I could shout!
  Kent Parker 2020-08-26 22:32:30  
  Having used Epson "reset" utility once, with success on my XP 830, it allowed me a bit more printing time until it just stopped cold. Research found this site. My download from 2manuals was easy as was the entire process and my printer is working once again, no thanks to Epson. I removed the ink pad chamber and replaced the saturated pads with some of my wife's cotton make up pads...Ha ! We'll see how long that lasts. Very similar material. Cheers and thanks for a good product !!
  Andrew Fisher 2025-06-17 01:08:36  
  Paid and they did not send me the download and they are not responding to my emails.
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