CANON MP990 Service Manual

$14.99
CANON MP990 Service Manual
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This service manual provides basic information required for performing Canon MP990 field service to maintain the product quality and functions of machine.

TABLE OF CONTENTS

1. MAINTENANCE
1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement Consumables by Service Engineer
1-2. Customer Maintenance
1-3. Special Tools
1-4. Sensors
1-5. Serial Number Location

2. LIST OF ERROR DISPLAY / TROUBLESHOOTING
2-1. Operator Call Errors
2-2. Service Call Errors
2-3. Troubleshooting by Symptom

3. REPAIR
3-1. Major Replacement Parts
3-2. Part Replacement Procedures
(1) External housing removal
(2) Cable wiring and connection
(3) Emblem removal
(4) Carriage unlocking
(5) ASF unit removal
(6) Right chassis removal
(7) Carriage unit removal
(8) Spur unit and platen unit removal
(9) Purge drive system unit (right plate) and switch system unit (left plate) removal
(10) Engine unit reassembly
(11) Ink absorber replacement

4. ADJUSTMENT / SETTINGS
4-1. User Mode
4-2. Service Mode
(1) Service mode operation procedures
(2) Service Tool functions
(3) LF / Eject correction
(4) Button and LCD test
(5) Ink absorber counter setting MP560
4-3. Grease Application
4-4. Special Notes on Servicing
(1) Print head problem
(2) Paper feed motor adjustment
(3) Carriage unit replacement
(4) Document pressure sheet (sponge sheet) replacement
(5) Ink absorber counter setting
4-5. Verification After Repair
(1) Standard inspection flow
(2) Service test print
(3) Ink absorber counter value print

5. MACHINE TRANSPORTATION

FORMAT: High resolution PDF document!
ZIP archive: 14 322 kB

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

  fred perry 2010-07-30 17:24:22  
  Thank you for such complete service manual. I am service engeneer.
  victor zarate 2020-12-25 04:58:40  
  well pleased making my epson w-2860 chipless . the ink levels remain 100 % full i have a ciss system so i always have more ink than printer knows about.no longer the ritual of going through the motions of changing the cartridge when theres tons really being fed into the cartridges
  abdul kabir hakimi 2015-04-21 09:37:12  
  thanks from 2manuals supporting site to solve our problems...
  John Torres 2013-03-27 15:08:06  
  Fantastic and easy! I did it myself eventhough I don\'t know much about the subject. Thanks a lot.
  Bong Jak Lee 2018-01-09 07:29:50  
  I finally succeeded after a few attempts and the firmware downgrade worked !! Now I can use my non-OEM ink cartridges on my Epson printer Thank you for this excellent piece of software, well worth it Best regards
  Alex PA 2024-06-09 15:15:43  
  A stressed week with Epson-ET-2800... It worked perfectly. As I have the same problem again, I will definitely buy from them.
  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!
  Francesc Vilches 2025-10-11 11:25:40  
  I just bought five keys and used the first one. It magically worked. Epson XP-422 is back to life. I also took advantage to clean the waste box. This is also important :-)
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