LaserJet 4000 Series Printers
Service Manual

$9.99
LaserJet 4000 Series Printers<br>Service Manual
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LaserJet 4000 Series Printers Service Manual

This manual contains the necessary information to service the HP LaserJet 4000 Pinter

Contents:

1 Printer Description
Overview
Printer Features
Identification
Model and Serial Numbers
Site Requirements
Space Requirements
Paper Specifications
Supported Types of Paper
Guidelines for Using Paper
Labels
Transparencies
Envelopes
Card Stock and Heavy Paper
Safety Information
Laser Safety Statement
Canadian DOC Regulations
FCC Regulations
Laser Statement for Finland
Toner Safety
Environmental Product Stewardship

2 Service Approach
Overview
Service Approach
Parts and Supplies
Ordering Information
Helpful Documentation
Phone Numbers for Ordering
Exchange Program
Consumables
Technical Assistance
Toner Cartridge Information
Warranty Statement

3 Printer Operation
Overview
Using the Control Panel
Control Panel Layout
Control Panel Lights
Control Panel Keys
Settings and Defaults
Control Panel Menus
Information Menu
Paper Handling Menu
Print Quality Menu
Printing Menu
Configuration Menu
I/O Menu
EIO Menu (Networked Printers)
Resets Menu
Service Mode
Service Menu
Setting the Page Count, Maintenance Count, and Serial Number
Cold Reset Paper
Diagnostics
Clear Event Log
Testing the Printer
Resetting the Printer
System Configuration
MS-DOS System Configuration
Parallel DOS Commands
Serial MS-DOS Commands
Printer I/O Configuration
Parallel Menu
Serial Configuration

4 Printer Maintenance
Overview
Cleaning the Printer and Accessories
Cleaning Spilled Toner
Preventative Maintenance
Reset Maintenance Count
Expected Life of Components

5 Functional Information
Overview
Printer Subsystems
Power Supply System
AC/DC Power Distribution
Overcurrent Overvoltage Protection
High Voltage Power Distribution
Toner Cartridge Detection
Engine Controller Subsystem
Engine Controller Board Inputs and Outputs
Laser and Scanner Drive
Paper Motion Monitoring and Control
Solenoids, Sensors, Clutches, and Switches
Engine Test Print
Motors
Formatter System
PowerSave
Resolution Enhancement technology (REt)
EconoMode
Input/Output
CPU
Printer Memory
Random Access Memory (RAM)
DIMM Slots
Memory Enhancement technology (MEt)
Page Protect
PJL Overview
PML
Control Panel
Image Formation System
Toner Cartridge
Photosensitive Drum
Writing the Image
Developing the Image
Transferring the Image
Image Fusing/Variable Fusing Temperature
Paper Feed System
Clutches and Sensors
Printing from Tray 1
Printing from Tray 2
Printing from the Optional 500-sheet Tray
Envelope Feeder
Duplexer
Paper Jam
Basic Sequence of Operation

6 Removing and Replacing Parts
Overview
Removal and Replacement Strategy
Tools
Removing Covers
Rear Right Side Cover
Top Cover
Left Side Cover
Front Right Side Cover
Rear Cover/Rear Output Bin
Tray 1
Removing Assemblies
Fuser
Formatter Cage Assembly
Output Assembly
Laser Scanner
Fan
Main Motor
Transfer Roller
Tray 1 Pickup Roller
Tray 1 Pickup Assembly
Right Side Toner Cartridge Guide
Registration Assembly
Paper Feed Assembly
Formatter Pan
Gear Train
Delivery Drive Assembly
Separating the Engine Module from the Paper Feed Module
Engine Controller Board
Paper Feed Rollers
Separation Rollers
Paper Feed Module Plate
Paper Feed Module Gear Train Assembly
Paper Feed Module Side Rails
Lower Paper Feed Module Plate
(HP LaserJet 4000 T/4000 TN)
PCA Cover (HP LaserJet 4000 T/4000 TN)
PCA Cover (HP LaserJet 4000/4000 N)
PCA Controller

7 Troubleshooting
Overview
Troubleshooting Process
Troubleshooting Flowchart
Troubleshooting Flowchart (Continued)
Troubleshooting the Printing System
Preliminary Operating Checks
Power On
Engine Test
Display
Event Log
Printer Messages
General Paper Path Troubleshooting
Information Pages
Image Quality
Image System Troubleshooting
Interface Troubleshooting
AUTOEXEC.BAT Standard Configurations
Reference Diagrams
Locations of Components
Paper Path
Engine Controller Board
Paper Size Detection Switches
Motors
Connectors
PCAs
Sensors and Thermistor
Solenoids and Clutch
Switches
Timing

8 Parts and Diagrams
Overview
How To Use the Parts Lists and Diagrams
Accessories and Supplies
Common Screws and Replacement Cables
Illustrations and Parts Lists
Alphabetical Parts List
Numerical Parts List
Contents-6 EN
1 Printer Description
Overview
This chapter discusses the following:
. Printer Features
. Identification
. Site Requirements
. Paper Specifications
. Safety Information

FORMAT: High resolution PDF document!
ZIP archive: 4 286 kB

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

  dawid zebrowski 2010-10-06 18:14:18  
  God Bless! My printer has back to life!!! :)
  Gustavo Martinez 2017-01-21 13:05:47  
  thank You Very Much For This File ... its help me so much with my printer
  Peter Sam 2009-08-11 11:18:28  
  Thank you so much for prompt reply. The program I received from you works fine. I have resetted 4 printers already! that is what I need. Peter.
  Barbara Kocjančič 2010-08-12 10:00:08  
  This is fantastic!!!!! It works fine on my epson px710w!!! Just 3clicks and it done!! Thanks so much!!!
  Garnett Stokes 2011-01-09 12:37:59  
  My Epson R2880 stopped printing and showed alternating ink and paper flashing lights. I had an extended warranty that I purchased with the printer but because I didn\'t register the warranty within 30 days I was told by Mack Camera that they would not honor the warranty. So after much research and web surfing I found myself at 2manuals. I wasn\'t even sure that the wic was the problem and I had serious doubts about spending more money on what could just be another scam like the extended warranty was. However like one reviewer said, what was $9.99. Well I downloaded the program, obtained the $9.99 pin code, loaded the software, and exactly as the video shows I was up and running. I couldn\'t believe it when the printer sprung to life and was ready to print. Hey, try it. You\'ll be glad you did.
  Krittawit Sitthichaiwatthana 2012-02-29 21:55:38  
  It work very well for my TX720WD! This is easy step to save your time and money. Successful reset in 2 minute after payment by paypal.
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Service Manual