HP Color LaserJet 4550, N, DN Printers
Service Manual

$9.99
HP Color LaserJet 4550, N, DN Printers <br> Service Manual
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HP Color LaserJet 4550, N, DN Printers Service Manual

This manual contains the necessary information to service the Color LaserJet 4550, N, DN Printers

Contents:

1 Printer description
Printer features
Identification
Site requirements
Printer specifications
Printer assemblies
Media requirements
Environmental Product Stewardship Program
Regulatory statements
Safety information

2 Service approach
Service approach
Parts and supplies
Warranty statement

3 Installation and configuration
Unpack the printer
Installation
Connecting to a network
Enhanced I/O (EIO) configuration
Printer drivers
Network configuration
Configuration tips
Setting network security on the printer

4 Printer maintenance
Cleaning the printer and accessories
Approximate replacement intervals for consumable items
Locating consumables
Replacing consumable items
DIMM configuration

5 Theory of operation
Introduction
Basic operation
Image formation
Toner density
Mechanical system
Paper path
DC controller subsystem
Motors and fans
Formatter system
Power supplies

6 Removal and replacement
Introduction
Consumable assemblies
Covers, drawers, and top and front assemblies
Right side assemblies
Left side assemblies
Rear assemblies
Internal assemblies

7 Troubleshooting
Introduction
Troubleshooting process
Printer error troubleshooting
Paper path troubleshooting
Image formation troubleshooting
HP ColorSmart II
Matching colors
Four-color printing (CMYK)
Image defects
Overhead transparency defects
Repetitive defects troubleshooting
Interface troubleshooting
Control panel troubleshooting
Troubleshooting tools
Service mode
Diagnostics mode
Diagrams

8 Parts and diagrams
Introduction
Ordering parts
Illustrations and parts lists
Alphabetical parts list
Numerical parts list .

FORMAT: PDF
ZIP archive: 56 618 kB

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

  Alain Tobalina 2011-03-31 20:32:13  
  Hello from France, Very serious. No problem for reset STYLUS PHOTO R1800. It's very easy and fast. Thanks
  Nary Preng 2008-02-07 19:36:04  
  I want to know this program before i buy it. Can you explain me about your program i had many problem with my printer of Epson R270.
  Gaudencio Valdez 2019-10-01 22:00:35  
  I bougth this latest version of service tools, v5105, I try it at canon mx 495, not working, the printer was in service mode, can you give some tips, maybe not recognized the usb, windows 7 my os, I need some help. Thanks.

REPLY: Please replace USB cable by new one
  Jack Wilson 2007-04-21 23:00:22  
  JUST A NOTE TO THANKYOU FOR A BRILLIANT WEBSITE SERVICE Had an Epson R220, locked Within three minutes of buying the adjustment software for R220, printer was rejuvenated and lept into life doin handstands!!! Excellent-well done!!! SRS
  Alan Page 2017-07-23 03:33:02  
  brilliant - absolutely brilliant. Thank you. Thought I would have to trash my printer and the unused ink cartridges. Only hiccup was needing to disable my security protection to install this wonderful product. Used it as a trial - which proved it worked - then bought the key to finish the job. I am wrapped as you have saved me hundreds of dollars as there is nothing wrong with the quality of the printing. Cheers, Alan.
  Brian Bloomer 2011-04-30 05:19:44  
  Success! I installed a OctInkjet waste inkpad overflow and tried their reset to no avail - they furnished your link. Your reset fixed my RX690 Epson printer within minutes . Ink started to flow into the overflow immediately (just as well it was installed). I did apattern check-all six colours perfect. Thank you Brian
  Eugene Bustillos 2025-12-21 21:32:35  
  I was a bit hesitant at first. The website looks very old. However, after watching an infuencer's video, https://youtu.be/BL5daGezO0o?si=9Qi4AmSDSMEevZMw I decided to go for it. The process was fast and simple. My Epson ET-2650 worked right away!
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