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!

  Gilang indonesianus 2006-08-30 13:40:48  
  i need refurbished software & adjusment service for my epson c67 stylus series !thanks my e_mail :Gieabsolute@yahoo.com
  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.
  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.
  holding sipman 2017-11-24 15:44:50  
  après avoir beaucoup cherché j'ai enfin trouvé votre logiciel. Très facile d'utilisation dommage il n'est pas en Français mais le résultat est que l'imprimante est repartie pour un tour. Merci pour tout je recommande.
  Andrew McGovern 2013-08-24 22:35:07  
  Key and details recieved in my email box. Followed instruction. Took seconds. Worked perfectly. Thankyou
  ann weston 2022-09-01 07:15:35  
  I bought one reset key and it hasn't even been a month yet and my printer is already telling me that the ink pad needs service. All of these good reviews that I have read on here is the reason i took a chance and purchased a reset key. I have not been able to use my printer at all. I am highly pissed off that not even a month after purchasing the one reset key and my printer is back at it again. I want a refund or to be able to try another reset code. this is a bunch of B.S.
REPLY:
Waste counters doesn't have any relation to how much time did user used the printer. Waste counters increase when printhead cleaning is performed. One printhead cleaning takes about 3-4% of waste counter. So if user make 25-30 printhead cleanings - the waste ink counters will reach 100% and overflow. Doesn't depend on time you will make this cleanings - in 1 month or in 1 year or in 1 day or in 3 years. Usually when printer is new and using Epson original inks - -there will be no need to make printhead cleanings. After Epson inks finish - users often buy third party inks - they have not so good quality as Epson and may clog printhead more often. So after Epson inks finish - users make printhead cleanings more often - as a result - after 20-30 printhead cleanings - counters overflow. So - try to make printhead cleanings less often.
Only ONE thing what does Reset Key - it resets waste ink pads counters to ZERO. Doesn't matter counters will be reset by yourself using Reset key ($9.99) or by Epson Service Center engineer ($50) - the result will be the same - counters will become 0%
Conclusion: use high quality inks!

  Sharon Brown 2008-07-21 04:40:38  
  I need help! Canon MP830 printer alarm light keep flashing. I keep turning my printer on and off. Error keep telling me look at the manual. I miss place my manual - just reset waste ink counter!
  Alvin Brown 2020-10-26 01:45:31  
  Absolutely fantastic. I got the error message and removed the ink pads ans washed them, don't think I got all the ink out though! Then I used this program as a 'trial' and it worked wonderfully, Printing all OK again and I thought I would need to buy a new printer. When it happens again, I will purchase new pads and a reset key - has to be cheaper than a visit to a repair shop or a new printer. Thank you so much
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