Color LaserJet 8500, 8550 Printers Family
Service Manual

Color LaserJet 8500, 8550 Printers Family <br> Service Manual
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Color LaserJet 8500/8550 Printer Family Service Manual

This manual contains the necessary information to service the Color LaserJet 8500/8550
Printer Family Printers


1 Product Information
Printer features
Site requirements
Media requirements
Identification (model and serial numbers)
Printer Information
Safety information

2 Service approach
Chapter contents
Parts and supplies
Technical assistance

3 Operational overview
Chapter contents
Verifying package contents
Verifying the cables are installed
Connecting the printer to the network
Changing the printer control panel overlay
Printer control panel layout
Menu maps
Selecting the display language
Installing the consumables
Configuring input trays
Verifying the printer is installed correctly
Verifying DIMM installation
Duplex registration (HP Color LaserJet 8550)
Booklet printing
HP TonerGauge (HP Color LaserJet 8550)

4 Printer maintenance
Chapter contents
Cleaning procedures
Printer consumables

5 Theory of operation
Chapter contents
Color theory
Image formation
Consumable detection mechanisms
Electrical systems
Mechanical systems
Paper path
Printer timing
EPH controller board
2,000-sheet input unit
Multi-bin mailbox
3,000-sheet stapler/stacker

6 Removal and replacement
Chapter contents
Maintenance units
Doors and covers
Top assemblies
Front assemblies
Left assemblies
Right assemblies
Rear assemblies
2,000-sheet input unit
Multi-bin mailbox
3,000-sheet stapler/stacker and 3,000-sheet stacker

7 Troubleshooting
Chapter contents
Pre-troubleshooting checklist
Printer message troubleshooting
Aids to troubleshooting
Paper path troubleshooting
Image formation troubleshooting
Image defects troubleshooting
Color balance adjustment
Repetitive defects troubleshooting
Repetitive defects troubleshooting
2,000-sheet input unit troubleshooting
Multi-bin mailbox troubleshooting
3,000-sheet stapler/stacker troubleshooting
Communications troubleshooting

8 Parts and diagrams
Chapter contents
Ordering parts
Illustrations and parts lists
Numerical parts list
Alphabetical parts list

FORMAT: High resolution PDF document
ZIP archive: 135 497 kB

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

  david simpson 2012-10-29 03:26:46  
  Brilliant stuff,very informative,well illustrated,althought i have an electronice background anyone could follow this very easily,a lot of thought & effort gone into this,welldone
  Jakov Frumin 2009-01-05 22:37:02  
  Benjamin Di Terlizzi 2019-06-20 21:07:04  
  Fixed an Epson BX625FWD and saved it from going in the dump! Thanks.
  Ahmed Moudnib 2018-07-24 09:06:25  
  "A printer's ink pad is at the end of its service life" - Great! It worked! Thank you very much
  Evgen Test 2010-08-31 09:40:59  
  My printer stopped printing with the error as \"General Error\" Epson quoted me $60 to send an engineer to fix my printer. After reading through the information on this site I decided to fix it myself. Found the problem was related to the waste ink pad counter. Only 10 minutes, I had the the printer working. The printer tested fine and has done approx 150 pages since with NO issues. Thanks for the WIC program!
  ra rr 2013-01-17 23:55:00  
  Just bought a key to reset my Epson printer and it worked. Thank you!
  vivek pillai 2006-04-05 02:02:05  
  pl send me the service manual for epson stylus 3000 printer
  Giorgos Zaxarias 2006-09-26 00:32:15  
  It\'s ok! thank you......................................
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