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!

  latonna roberson 2019-04-03 18:41:10  
  My Epson 1400 got the end of life message and I had already reset it once before so I couldn't use the Epson site to reset it. I remembered this site from years ago and purchased the utility reset and it worked like a charm. Only wish I had not spent $400 on a new printer before remembering your site. Anyways I just did a live video showing that this really works on my youtube channel. More people need to know about this remedy!
  Jacek Rak 2019-10-20 20:13:27  
  Thank you! The trail reset key worked very well on my Epson Expression XP-610. I'll be back to buy a reset key.
  eloana coelho 2023-12-18 17:33:46  
  I always bought the key and it arrived correctly, but unfortunately in my last 3 purchases, the key did not arrive. I already sent an email to support with the order number with the problem, they told me that everything was resolved, but nothing was resolved, and I still don't have the key. very bad and slow customer support, it took almost 2 days for useless response.
  Jean Carivenc 2015-05-08 15:46:00  
  I did not use the printer Epson Pro 4900 for a long time and even after 5 or 6 powerful manual cleanings for all inks the paper was staying completely white !! I did the Ink Charge and cleaning process described in the soft and after that the machine is working 100% fine In France there is no way to get this software except if you work for Epson !!!
  Tobias Pagel 2022-12-10 16:20:09  
  After an initial trial and after seeing that it worked, I bought a reset key. Works great! 10/10
  Monica Lascano 2020-07-27 17:34:24  
  thank you guys, its been very helpfull. thank again... :)
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