LaserJet 1200 printer
Service Manual

$9.99
LaserJet 1200 printer<br> Service Manual
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LaserJet 1200 printer Service Manual

This manual contains the necessary information to service the HP LaserJet 1200 Series printer.

Contents:

1 Product information
Chapter contents
Introduction
Hardware description
Firmware description
Product specifications
Model and serial numbers
Overview of printer
Front and side view
Back and side view
Overview of optional copier/scanner
Top view
Warranty statement
Extended warranty
Toner cartridge information
Refilled toner cartridges
Recycling toner cartridges

2 Installation and operation
Chapter contents
Operating environment
Identifying printer components
Printer control panel
Control panel light patterns
Copier/scanner control panel
Selecting media
Selecting media to print .
Selecting media to copy or scan
Loading media
Loading media to print
Loading media to copy or scan .
Printer output paths

3 Maintenance
Chapter contents
Life expectancies of consumables
User-replaceable parts
Replacing the printer pickup roller
Replacing the printer separation pad
Replacing the copier/scanner separation pad
Cleaning the equipment
Cleaning the print path
Cleaning the toner cartridge area
Cleaning the printer pickup roller
Cleaning the printer separation pad
Cleaning and recalibrating the copier/scanner
Cleaning the scanner path

4 Operational overview
Chapter contents
Basic functions
Formatter system
Control panel
Draft mode
MEt
Enhanced I/O
PJL overview
Printer functions
Engine control unit/power system
Image formation system
Printer paper-feed system
Jam detection
Optional copier/scanner
Optical system
Document pickup and feed systems
Basic sequence of operation (formatter-to-printer)

5 Removal and replacement
Chapter contents
Removal and replacement strategy
Required tools
Before performing service
Toner cartridge
Parts removal order
Covers
Left side cov
Optional copier/scanner
Back cover
Right side cover
Top cover
Control panel assembly
Front cover assembly
Internal assemblies
Transfer roller
Formatter
Laser/scanner assembly
Fuser assembly
Output rollers
Motor
Solenoid
Fan assembly
Right plate assembly
Pickup assembly
Pickup roller shaft
Paper lift plate assembly
Left plate assembly
Bottom assemblies
ECU pan
Paper-feed assembly

6 Troubleshooting
Chapter contents
Basic troubleshooting
Errors
Control panel light messages
Fatal error secondary messages
Checking the toner cartridge
Solving image-quality problems
Solving paper-feed problems
Solving print paper-feed problems
Solving copying and scanning paper-feed problems
Functional checks
Engine test
Half self-test functional check
Drum rotation functional check
Heating element check
High-voltage power supply check
Paper path check
Service mode functions
NVRAM initialization/cold reset
PJL software commands
Troubleshooting tools
Internal reports
Repetitive image defect ruler
Main wiring
Locations of connectors
Locations of LEDs, jumpers, and switches

7 Parts and diagrams
Chapter contents
Ordering parts and supplies
Parts
Related documentation and software
Consumables
Accessories
How to use the parts lists and diagrams
Common hardware
Assembly locations
Printer trays & optional copier/scanner
Covers
Internal assemblies
Internal components (1 of 2)
Internal components (2 of 2)
Electrical components
Paper pickup assembly (1 of 2)
Paper pickup assembly (2 of 2)
Fuser assembly
Alphabetical parts list
Numerical parts list

FORMAT: High resolution PDF document!
ZIP archive: 6 857 kB

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We are in business since 2002 and do our best to give our customers perfect service!

  Patrick Blom Bachstein 2016-02-25 19:28:33  
  So had my Epson Pro 4900 disconnected from powersupply for about a month and a half, due to new facilities in my studio. Powered it up, printed a nozzle check, and banged my head against the wall! Only magenta and light cyan did appear, and two broken lines of photo black. Did the Windex trick 5-8 times, and at the 16. nozzlecheck, 9 colours appeared, BUT some actually has got worse, the more Windex the head had.
Preparing myself on making a stronger brew for the cleaning (a lot of Googling and reading!), I came across the Service Program. Reluctant to spill ~ 150 ml of ink, I first moved along (also, the website seemed shady, however, alot of mentions on various foras).

Today I decided \'What the heck, 30 bucks, if it doesn\'t work, I\'ll survive\', so I purchased a license, installed on a laptop (with USB connection instead of network), and chose the option to prime the left channels first - and WOW: EVERY nozzle on that side now fired, and made an (99%) perfect nozzle check. So did the other side, when finished filling the lines again.
So: 5 f*cking huge stars from me! :)
Thank you for this wonderful utility!
  Wesley Pritchard 2004-02-07 21:55:21  
  The only way to really adjust you printer is by using this program. The owner the printer could not adjust the print using the regular adjustmest utility incleuded in the printer drivers. But this program did the trick. The printer is perfectly adjusted and the owner is very happy with the printer now.
  ahmet deveci 2010-11-04 14:42:57  
  HI JUST A THANK YOU JUST INSTALLED AND RAN PROGRAM,EVERYTHING OKAY SO EASY OFF NOW TO FIX A WASTE TANK THANKS AHMET
  abraham bika 2006-12-24 01:02:30  
  Thank you for the service. I have downlaoded my order.
  Osiris De los Santos 2021-01-27 13:10:51  
  Funktioniert wunderbar kann ich nur empfehlen +++++
  Brian Bloomer 2011-04-30 05:19:44  
  Success! I installed a OctInkjet waste inkpad overflow and tried their reset to no avail - they furnished your link. Your reset fixed my RX690 Epson printer within minutes . Ink started to flow into the overflow immediately (just as well it was installed). I did apattern check-all six colours perfect. Thank you Brian
  santiago carlos 2004-06-26 18:59:49  
  prompt reply. thanks.
  Richard Chilton 2020-07-29 19:53:42  
  My Epson XP-800 max'd out on counters and died on me. Screen of death with printer disabled by manufacturers internal firmware. Researched the web and found these guys. The reset process and key purchase was easy to follow and after a few registration steps and a simple paypal transaction the reset key arrived, was entered and the printer was back working again. Saved me at least £80 on a new basic 3-in-1 printer plus ensured my existing ink supplies were not useless Thanks guys - thoroughly recommended
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