Color LaserJet 8500, 8550 Printers Family
Service Manual

$9.99
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

Contents:

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

2 Service approach
Chapter contents
Introduction
Parts and supplies
Ordering
Technical assistance
Warranty

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
Introduction
Color theory
Image formation
Consumable detection mechanisms
Electrical systems
Mechanical systems
Paper path
Printer timing
EPH controller board
Duplexer
2,000-sheet input unit
Multi-bin mailbox
3,000-sheet stapler/stacker

6 Removal and replacement
Chapter contents
Introduction
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
Diagrams

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

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!

  Petr Brousek 2025-08-11 23:01:56  
  Hello, all was OK, thank you very much from Czech Republic. Petr
  James Schumacher 2017-01-25 18:29:31  
  Thank you, worked on my epson photo 1400 that locked up, using a mac to reset. OS X 10.10.5
  theold fart 2012-08-18 12:01:50  
  Program is easy to use, with the additional manual for reference. It allowed me to correct a corrupted EEPROM in the printer. All the .prn files are missing, so setting up the printer/scanner and the final print check are not possible. If you only want to reset the ink pad counter then there are cheaper/ free program available. Would give it a GOOD rating if missing files were included.
  Epson Scamtank 2022-12-13 17:40:08  
  The trial key is key (pun intended). It unblocked my EcoTank right away through Wi-Fi. Soon I'll have to buy this key. This software DISABLING of the printer should be illegal. It's programmed to actually brick the device. Unbelievable. Talk about planned obsolescence!
  Russell Veitch 2011-06-26 15:05:23  
  Brilliant reset my epson p50 in a matter of seconds, what more can i say top notch.
  santiago carlos 2004-06-26 18:59:49  
  Printer is now fixed and working fine. Thank you very much for your help. (I have already \"recommended \" your site to a friend who was having a problem with his printer. Further if (when) I have a problem with any of my other printers, (Canon S600 and Cannon i560), if a manual is needed, I will revisit.
  toni heino 2025-07-09 22:25:37  
  5/5 worked like charm,easy to use...........................................................
  Kork Little 2021-01-02 17:18:01  
  You made my day, it is now working. Thanks for your help. Enjoy your day!
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