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!

  Linda S Perkins 2018-02-15 12:00:09  
  Wow, what a program, it just reset my Epson WF 7525 with inkpad problem. Thank you! Max
  Darren Townsend 2020-10-14 21:53:29  
  I purchased four activation keys total, but I had an issue using one. John at tech support got it straightened out and I was able to complete the install on the printer. Now I can set up the CISS unit for Sublimation printing. I'm very happy, and can testify that this product works to unlock the firmware of your printer. (Epson WF-3720)
  YAILEEN SANCHEZ 2025-05-14 00:04:51  
  This app saved my life for my Epson ET 2850 I was skeptical. It was a bit of a hassle at first, but once I figured it out, it worked perfect. So far, I only had to buy a key and did work. I'm very Happy!
  David Morris 2011-11-02 15:33:04  
  I was a bit unsure about trying this at first but thought its only about fiver so give it a try, and i'm glad i did, it's so simple and you save money as well, i had a slight problem with the reset key at first so i e-mailed 2manuals, They sent me a new key and i was all sorted in less than no time . I would highly recomend,worth every penny. David Morris, Gwent, South Wales u.k
  Pierpaolo De Fina 2019-08-14 15:33:44  
  It works perfectly to make Epson XP-55 chip-free and disable ink levels. Many thanks.
  Spike Grimme 2020-07-23 12:47:07  
  Oh my golly, I didn't think that would work, but it fixed it in about 30 seconds. Even though I hadn't been able to disable the process monitor thing that it says do first, the reset program still worked instantly when I ran it on an Epson XP-540. If there is one thing that gets my goat in terms of being so unethical both a rip-off financially and environmentally unsustainable, its the way printer companies rip us off. So am super grateful to have found a way round this. For a much more reasonable price than the printer shop told us, and something I could do at home when I needed the printer urgently for work! Thanks so much!
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