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!

  Melissa Varner 2023-10-15 04:51:04  
  Very simple to perform on my Epson ET 2760. I received the ink pad reached its end-of-life error message on my printer. I replaced the Maintenace box and then used the reset key I purchased, and it seems to have fixed the issue.
  TAMMY OAKLEY-PRIOR 2011-04-27 22:42:22  
  Excellent! Thank you! What a brilliant utility!..................................................................................................
  Nicolas Carrizosa 2009-08-27 18:29:17  
  The Epson Artisan 800FW Adjustment Program works great. Once downloaded it took me less than a minute to reset the printer. This is a very intuitive and easy to use software. I am a happy camper now. Thanks again
  Kirsty Harrison 2024-02-17 20:14:25  
  I had a ink reset error even after changing the ink storage, this was so quick and easy to reset! thanks a lot :)
  Gerard van Bennekom 2019-06-18 14:00:12  
  Much easier then I had expected. Downloaded the program, purchased the key, switch off and on the printer and that was it! The printer works again.
  dave burrow 2010-09-02 22:34:09  
  Dear John Re: 20748 / 20995 I would like to take this occassion to to say "Thank Very Much" for your reset product (WIC) on my epson sx115's. They worked perfectly and certainly did the job! I will buy from you again in the near future and would like to confirm that i would have no hesitation to recomend you to anybody. Keep up the good service. kindest regards Dave Burrow photographixdesign
  Joice Rolim 2015-06-03 07:42:55  
  John, I wanted to thank you for the excellent service you provided to me. My printer is now working again! There is a site based in England called \"fixyourownprinter.com\". If you want I can leave a message on their forum recommending your site. Let me know if you want this.
  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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