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!

  Kent Parker 2020-08-26 22:32:30  
  Having used Epson "reset" utility once, with success on my XP 830, it allowed me a bit more printing time until it just stopped cold. Research found this site. My download from 2manuals was easy as was the entire process and my printer is working once again, no thanks to Epson. I removed the ink pad chamber and replaced the saturated pads with some of my wife's cotton make up pads...Ha ! We'll see how long that lasts. Very similar material. Cheers and thanks for a good product !!
  Deepak nepal 2015-02-19 16:16:22  
  I just downloaded and tried your WIC Reset Utility. Since I am running Windows 8.1 I was afraid that it might not work too well. I was WRONG!! Happily it works GREAT on Windows 8.1! I\\\'m a happy camper!! Just thought I should let you know!! Best regards, Deepak
  amprenta clau 2016-12-22 13:14:48  
  Foarte multumit, am cumparat on-line in 22 decembrie 2016 - codul (Key) - a durat 5-10 minute (inregistrarea pe site si plata), am instalat softul lor in care am introdus codul primit prin e-mail - de la ei si in cateva secunde totul functioneaza ca nou. Imprimanta mea Epson R285 - resetata acum a 2-a oara. Prima data, de frica am apelat la o persoana, care tot aici a resetat-o. Recomand cu drag. Thank You, I recommended Very pleased, I bought online in the December 22, 2016 - code (Key) - lasted 5-10 minutes (registration and payment on site), I installed their software in which we introduced code received via e-mail - from her and within seconds everything works like new. My Epson R285 printer - now reset the 2nd time. First, the fear I turned to someone who here has reset it. I recommend
   2013-12-05 11:44:10  
  Holy crap this is a lifesaver / money saver / mental breakdown saver and just an amazing product. I was on the verge or completing my order for a new printer when I came across this site. Why spend $200. for a new printer when $10. can breathe new life into my old Epson Artisan 835 with CISS. I'm good to go now, just have to get a waste ink system installed and I'm back in business. Thanks.
  Darren Townsend 2020-10-14 21:53:29  
  I purchased four activation keys total, but I had an issue using one. John at tech support got it straightened out and I was able to complete the install on the printer. Now I can set up the CISS unit for Sublimation printing. I'm very happy, and can testify that this product works to unlock the firmware of your printer. (Epson WF-3720)
  adeka maops 2008-10-29 06:25:33  
  help me to epson r250 adjustment program. please!!!!!!
  Robin Pruett 2023-07-13 20:54:29  
  I was skeptical, like I'm sure we all are when buying something new online, but I simply turned off my Epson Monitor, under maintenance tab, bought the key, turned off my printer, then turned it back and and IT WORKED! Well worth $10.00, just so I don't have to buy another printer.
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