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!

  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!
  richard haynes 2020-05-11 23:57:36  
  Thank you so much for the reset. I was able to clean my ink pads, and then using your reset utility, reset my printer and now it works perfectly! So much better than buying a new printer!
  Zoran Zdravkovic 2012-10-17 18:45:42  
  Ja sam prezadovoljan, kupoprodaja je uspesno zavrsena a stampac Epson Stylus Photo P50 je odmah po resetovanju proradio.Ovo prvi put radim ali svakom preporucujem saradnju sa ovom firmom, zaista su korektni.
  radhouani hatem 2012-11-14 03:17:36  
  hi i want to get reset key for epson sx235w i haven\'t a cdredit card tell me wat can i do? please call me at hradhouani@ymail.com thank you ======== Admin =========== Hello! You can pay by Western Union or Moneybookers.
  First Name 2010-02-21 00:46:14  
  Thank you!
  David Wrather 2016-03-31 22:39:24  
  I have been struggling with a clogged head on my Epson Pro 4900 for weeks.
The Windex-on-a-papertowel-overnight solution has worked before; however, it was not clearing the nozzles this time.
Thanks to John\'s link ( http://forum.luminous-landscape.com/index.php?topic=77073.0 ) for guiding me to 2manuals.com!!
I purchased the SP4900 program and it was GREAT!
I used the Adjustments (Individual) program on Section 2 Head Related Checks and Adjustments, first at level CL3 then CL2 for the clogged colours channels and voila, my head is now fully functional again.
I have only browsed through the other SP4900 subroutines, but they will provide me with a full suite of maintenance routines that could be very useful in the future.

This program was fantastic. The only inconvenience was that it is a Windows .exe file and I am a Mac OSX user. I had to launch Windows 7 Pro in Fusion and conduct the maintenance; however, with so many Mac users needing this type of help for the Epson Pro printers, it would be great to have an OSX program option too. That being said, if you can run Windows on your computer and have an Epson Pro 4900, I highly recommend this indespensible program. At $29.99 it is a steal compared to calling in a technician.
Keep up the super product support, John!! Thanks.
  Ілона Єфімцева 2025-05-28 10:47:21  
  Придбала ключ скидання відпрацьованих чорнил, після оплати протягом кількох хвилин ключ надійшов на пошту. Ще кілька хвилин і мій принтер знову працює!!! Дякую!!!!
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