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!

  Naser Khalil 2018-02-26 09:27:43  
  Dear Sir, I need this Service Manual for D3000 and i couldn't fine away how to add this to my shopping card. please Advice.
  Angelique Hahn 2015-09-25 22:32:04  
  oh all good now john! it was my first time using this and i’m very impressed! super happy with the result and how fast i could use my printer, yay! thanks again!
  JEFF GILLINGHAM 2010-11-11 18:45:59  
  very good program,easy to use,saved me throwing away a very good printer.well worth the money.Jeff (uk)
  Le-Jaune Morgan 2025-07-10 15:51:46  
  You saved me a ton of money. This is the second time I had to reset a printer's waste pad, and Wicreset has not disappointed me. Thank you, thank you, thank you!
  Jeff Carbone 2019-05-01 09:36:34  
  I love printing hard copies of material to review. I bought an Epson EcoTank 2650 for the single purpose of never having to worry about how much I have to print.

When I found out about the ink pad and how it basically “fills up” and prevents you from printing, I was pretty pissed off.

I called a service center in my state in the US and they wanted $110 to replace the ink pad and reset it. I searched hard for a solution and when I found this I was really sure this was a scam.

I tried it from one of your affiliates (octoinkjets) and did the trial to reset it to 90% and it worked.

Thank god you guys have this tool. I bought a key for $10 and was done with it. Watched a video on how to clean the ink pads and it was super easy. Now I have a new printer basically.

I can’t believe Epson gets away with this crap. You guys rock!
It really took a leap of faith to try this.
   2013-09-13 16:54:01  
  Quick and easy. i have an XP600 and Artisan 725 that were showing the 'waste inkpad error'. I bough 2 keys and solved a 2 week headache in 10 minutes.
  Mary-Ann Prinsloo 2022-07-19 12:17:16  
  Good day. I have to clean my printer head EVERY hour. Then it prints fine. Until I leave it for an hour. So this leads to waste pad full and I have to purchase a key every time. Is there another way to go around this problem please? I cannot afford to buy a key every week.

=======Reply ========
You have to make 2 things
- clean parking station first - then inks will not dry on printhead;
- use high quality inks.
  FERNANDO LEGANIA 2020-07-16 23:25:24  
  XP322 ran out of copies and froze up. I read up that it was an Epson device to sell more printers but discovered your site just before treating it to a display of bad temper. The 20% of extra time will make the replacement question easier and i can use my stock of ink up on this 4 year old printer. I may even use your services to zero life the counter as it isn't a bad device really. Thank you so much.
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