LaserJet 1200 printer
Service Manual

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.


1 Product information
Chapter contents
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
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
Left side cov
Optional copier/scanner
Back cover
Right side cover
Top cover
Control panel assembly
Front cover assembly
Internal assemblies
Transfer roller
Laser/scanner assembly
Fuser assembly
Output rollers
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
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
Related documentation and software
How to use the parts lists and diagrams
Common hardware
Assembly locations
Printer trays & optional copier/scanner
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!

  Schaun Smuts 2015-10-23 11:16:13  
  I was amazed how easy that was. I was in doubt that this simple download would work... with my heart racing!

I entered the key,and there it was, all fixed.

2manuals, I must say, what you said it would do, it did, and I\'m so relieved and happy, and can work again.

The success of this has made me want to write a review on your product right away.

Thank you so much

Robert Dorsey President/CEO Cabin Watch Fine Time Wear
  Bruce Nicholson 2007-06-03 06:28:43  
  Really terrific service and rescue manual and a very helpful and approachable team of people. The very small expenditure indeed saved me the price of a new printer.
  Alexander Molinar 2019-09-27 22:53:46  
  Printer reset with key then failed waste counter back to 100% after test print. Key no longer works!

2Manuals reply:
There is bug in Epson Photo 1390, 14000, 1410 firmware that put waste counter overflow back again after reset. This problem can be solved by updating printers firmware. Here is step by step manual how to fix it -
  Leon Potgieter 2004-06-18 10:42:40  
  Paid for Epson Stylus Color 900 service program and afterwards tried to download program from link. Link would only download a HTML file, and not an executable. Left a message from 2manuals to assist me. This is too damn difficult. Why can the link not just download the executable? ============= Just checked - it works fine. Maybe there were server problem at that moment. You have been sent direct link. John.
  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.
  Jakov Frumin 2009-01-04 19:55:12  
  I purchased the R1400 service manual from 2manuals with no problems... Paid for download. $14.00 US
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Service Manual