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!

  Jhazmin Raya 2020-08-18 20:35:17  
  I have modified the firmware of an Epson wf3620 with the firmware key to make the printer run with chipless ink cartridges. The instructions were clear but must be followed exactly in order for the process to be successful. I am very happy with the result as I have the freedom to use oem ink or not depending on my needs. No oem cartridges now work perfectly well. Well done wic utility people. regds, Peter.
  ulli schumacher 2015-05-12 14:29:36  
  Its great! It saves a lot of money to be spent in vain. I tried from various service centres, but nobody guided me properly by using ur software and reset key, it takes hardly 5 minutes to complete all the procedure. Artisan 710 running again and saved a lot of money. Thanks a lot!
  James Whiting 2016-07-07 06:27:39  
  You all rock! Keeping a favorite printer alive! Thanks again😎...it\'s beyond its stated life span, but the reset key resolved my bw issues...it\'s breathing and printing true again after 2 months of frustration! Tony
  planeta cartucho 2009-06-20 19:32:14  
  Excellent value for money. Try It, you\'ll see!
  anca neamu 2012-11-21 23:52:26  
  went very good for my epson dx5000. must have no firewall, no proxy and after that MUST restart computer. i did not get that in the first place. thanks...
  Boris Salnikov 2025-11-08 23:16:00  
  Dear Sirs, my priter is Epson ET-2820. The reset of waste counter is not possible, but the printer is available in the list of printers. All stepst will be executed acc. to you specification. Isuue is: Querry has been rejected by the device. -Current devis specification are brocen, incorrect or out of date. - Please try to update this application to the most recent version first. - Otherwise, plese report all available information about this issue to us. The current firmaware is XP26P8 26/08/2025 Could you please check this info and sen me your response Thank you in advance BR Boris Salnikov
  Luca Pala 2020-11-20 08:23:27  
  tHIS SAVES MY DAY. Used code TRIAL it really works! :D
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