Printer Description
The model number and serial numbers are listed on identification
labels located under the top cover on the right side of the printer. The
model number is alphanumeric, such as USEB000194 for the HP
LaserJet 4000 N printer.
HP LaserJet 4000, 4000 N,
4000 T, and 4000 TN Printers
Service Manual _____________
© Copyright Hewlett-Packard Warranty Trademark Credits
Company 1997
The information contained in PostScript™ is a trademark of
All Rights Reserved. this document is subject to Adobe Systems Incorporated
Reproduction, adaptation, or change without notice. which may be registered in
translation without prior written certain jurisdictions.
Hewlett-Packard makes no
permission is prohibited, except
warranty of any kind with CompuServe™ is a U.S.
as allowed under the copyright
respect to this information. trademark of CompuServe, Inc.
laws.
HEWLETT-PACKARD
Publication number SPECIFICALLY DISCLAIMS Windows® is a U.S. registered
C4118-91026 THE IMPLIED WARRANTY OF trademarks of Microsoft
MERCHANTABILITY AND Corporation.
First Edition
FITNESS FOR A PARTICULAR TrueType™ is a U.S. trademark
PURPOSE. of Apple Computer, Inc.
Hewlett-Packard shall not be
ENERGY STAR® is a U.S.
liable for any direct, indirect,
registered service mark of the
incidental, consequential, or
U.S. EPA.
other damage alleged in
connection with the furnishing or
use of this information.
Hewlett-Packard Company
11311 Chinden Boulevard
Boise, Idaho 83714 U.S.A.
Contents
1 Printer Description
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Printer Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Model and Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Site Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Space Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Paper Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
Supported Types of Paper . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
Guidelines for Using Paper . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
Transparencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16
Card Stock and Heavy Paper . . . . . . . . . . . . . . . . . . . . . . . . .1-18
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
Laser Safety Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
Canadian DOC Regulations . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
FCC Regulations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20
Laser Statement for Finland . . . . . . . . . . . . . . . . . . . . . . . . . .1-21
Toner Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-22
Environmental Product Stewardship. . . . . . . . . . . . . . . . . . . .1-23
2 Service Approach
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Service Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Parts and Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Helpful Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Phone Numbers for Ordering . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Exchange Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Toner Cartridge Information . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Warranty Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
EN Contents-1
3 Printer Operation
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Using the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Control Panel Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Control Panel Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Control Panel Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Settings and Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Control Panel Menus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Information Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
Paper Handling Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Print Quality Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10
Printing Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13
Configuration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17
I/O Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23
EIO Menu (Networked Printers) . . . . . . . . . . . . . . . . . . . . . . .3-26
Resets Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-28
Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29
Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30
Setting the Page Count, Maintenance Count,
and Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30
Cold Reset Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33
Clear Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33
Testing the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-34
Resetting the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-35
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-36
MS-DOS System Configuration . . . . . . . . . . . . . . . . . . . . . . .3-36
Parallel DOS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-36
Serial MS-DOS Commands . . . . . . . . . . . . . . . . . . . . . . . . . .3-37
Printer I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-38
Parallel Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-38
Serial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-38
4 Printer Maintenance
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Cleaning the Printer and Accessories . . . . . . . . . . . . . . . . . . . . . . .4-2
Cleaning Spilled Toner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Preventative Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Reset Maintenance Count . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Expected Life of Components. . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Contents-2 EN
5 Functional Information
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Printer Subsystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Power Supply System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
AC/DC Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Overcurrent Overvoltage Protection . . . . . . . . . . . . . . . . . . . . .5-5
High Voltage Power Distribution . . . . . . . . . . . . . . . . . . . . . . . .5-6
Toner Cartridge Detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
Engine Controller Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
Engine Controller Board Inputs and Outputs . . . . . . . . . . . . . .5-9
Laser and Scanner Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12
Paper Motion Monitoring and Control . . . . . . . . . . . . . . . . . . .5-13
Solenoids, Sensors, Clutches, and Switches . . . . . . . . . . . . .5-13
Engine Test Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13
Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
Formatter System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
PowerSave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
Resolution Enhancement technology (REt) . . . . . . . . . . . . . .5-17
EconoMode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-17
Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18
CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18
Printer Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-19
Random Access Memory (RAM) . . . . . . . . . . . . . . . . . . . . . .5-19
DIMM Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20
Memory Enhancement technology (MEt) . . . . . . . . . . . . . . . .5-20
Page Protect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20
PJL Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-21
PML. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-21
Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-21
Image Formation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-22
Toner Cartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24
Photosensitive Drum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-25
Writing the Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-28
Developing the Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-29
Transferring the Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-30
Image Fusing/Variable Fusing Temperature. . . . . . . . . . . . . .5-31
Paper Feed System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-33
Clutches and Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-34
Printing from Tray 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-35
Printing from Tray 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-37
Printing from the Optional 500-sheet Tray . . . . . . . . . . . . . . .5-40
Envelope Feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-44
Duplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-46
Paper Jam. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-48
Basic Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-49
EN Contents-3
6 Removing and Replacing Parts
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Removal and Replacement Strategy. . . . . . . . . . . . . . . . . . . . . . . .6-2
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Removing Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Rear Right Side Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Left Side Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12
Front Right Side Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-13
Rear Cover/Rear Output Bin. . . . . . . . . . . . . . . . . . . . . . . . . .6-14
Tray 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Removing Assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18
Fuser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18
Formatter Cage Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20
Output Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-21
Laser Scanner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-23
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-24
Main Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-25
Transfer Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-26
Tray 1 Pickup Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-27
Tray 1 Pickup Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-29
Right Side Toner Cartridge Guide. . . . . . . . . . . . . . . . . . . . . .6-33
Registration Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-34
Paper Feed Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-36
Formatter Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-39
Gear Train. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-40
Delivery Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-41
Separating the Engine Module from the Paper Feed Module . . . .6-42
Engine Controller Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-44
Paper Feed Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-48
Separation Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-49
Paper Feed Module Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-50
Paper Feed Module Gear Train Assembly . . . . . . . . . . . . . . .6-51
Paper Feed Module Side Rails . . . . . . . . . . . . . . . . . . . . . . . .6-52
Lower Paper Feed Module Plate
(HP LaserJet 4000 T/4000 TN). . . . . . . . . . . . . . . . . . . . . . . .6-53
PCA Cover (HP LaserJet 4000 T/4000 TN) . . . . . . . . . . . . . .6-54
PCA Cover (HP LaserJet 4000/4000 N) . . . . . . . . . . . . . . . . .6-55
PCA Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-56
Contents-4 EN
7 Troubleshooting
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Troubleshooting Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Troubleshooting Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4
Troubleshooting Flowchart (Continued) . . . . . . . . . . . . . . . . . .7-5
Troubleshooting the Printing System . . . . . . . . . . . . . . . . . . . . . . .7-6
Preliminary Operating Checks . . . . . . . . . . . . . . . . . . . . . . . . .7-6
Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
Engine Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12
Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-13
Printer Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-17
General Paper Path Troubleshooting . . . . . . . . . . . . . . . . . . .7-42
Information Pages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-45
Image Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-49
Image System Troubleshooting . . . . . . . . . . . . . . . . . . . . . . .7-67
Interface Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-69
AUTOEXEC.BAT Standard Configurations . . . . . . . . . . . . . .7-72
Reference Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-75
Locations of Components . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-75
Paper Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-81
Engine Controller Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-84
Paper Size Detection Switches. . . . . . . . . . . . . . . . . . . . . . . .7-86
Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-91
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-92
PCAs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-95
Sensors and Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-97
Solenoids and Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-100
Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-102
Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-104
8 Parts and Diagrams
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
How To Use the Parts Lists and Diagrams . . . . . . . . . . . . . . . . . . .8-2
Accessories and Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
Common Screws and Replacement Cables . . . . . . . . . . . . . . .8-6
Illustrations and Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-8
Alphabetical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-57
Numerical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-66
EN Contents-5
Contents-6 EN
1 Printer Description
Overview
This chapter discusses the following:
Printer Features
Identification
Site Requirements
Paper Specifications
Safety Information
EN Overview 1-1
Printer Features
Table 1-1. Printer Features
Speed 17 pages per minute (ppm)
100 MHz RISC microprocessor
First Page Out = 15 sec.
Resolution 300 dpi with PCL5e/HP’s PostScriptTM Level 2 emulation (PS)
600 dpi with PCL5e/PS
HP FastRes 1200 (PCL6 only)
HP ProRes 1200 (PCL6, PS)
Typefaces 110 Scalable TrueTypeTM (80 built-in, 30 via FontSmart, all PS
and PCL accessible)
Memory Options HP LaserJet 4000/4000 T: 4 MB RAM standard
HP LaserJet 4000 N/4000 TN: 8 MB RAM standard
Optional Memory:
2, 4, 8, 16 MB EDO DIMMs
32 MB SDRAM DIMM
Expansion Slots 3 100-pin DIMM slots
2 enhanced I/O (EIO) slots
Interface Bidirectional IEEE 1284 compliant parallel interface
RS-232 9-pin serial
Paper Handling Connector (PHC)
Optional Networking 10Base-T and 10Base-2
10/100Base-TX
Token Ring
LocalTalk
Mass Storage Options 2 and 4 MB Flash DIMMs
1-2 Printer Description EN
Table 1-1. Printer Features (continued)
Paper Trays 100-sheet Tray 1
Size: 3 by 5 to legal (76 by 127 mm to 216 by 356 mm)
500-sheet Tray 2 (HP LaserJet 4000/ 4000 N)
Size: letter, legal, A4
250-sheet Trays 2 and 3 (HP LaserJet 4000 T/ 4000 TN)
Size: letter, A4, executive, legal, B5 (ISO), B5 (JIS), A5
Optional Universal 500-sheet Tray supports standard and custom
sizes from 5.8 by 8.2 in (149 by 210 mm) to 8.5 by 14 in
(216 by 356 mm).
Paper Path Straight through from Tray 1 to rear output bin
Or to top output bin
Output Capacity 250-sheet top output bin
50-sheet rear output bin
Paper Handling Options Duplexer, Envelope Feeder, optional 500-sheet universal tray
assembly
Table 1-2. Comparison of HP LaserJet 4000 Series Printers
HP LaserJet HP LaserJet HP LaserJet HP LaserJet
4000 4000 T 4000 N 4000 TN
Ethernet 10-T/ optional optional standard standard
10-2
Max. # input bins 3 4 3 4
Standard RAM 4 MB internal 4 MB internal 8 MB internal 8 MB internal
250-Sheet Tray not available 2 standard not available 2 standard
500-Sheet Tray standard optional standard optional
500-Sheet optional optional optional optional
Universal Tray
EN Printer Features 1-3
Table 1-2. Comparison of HP LaserJet 4000 Series Printers (continued)
HP LaserJet HP LaserJet HP LaserJet HP LaserJet
4000 4000 T 4000 N 4000 TN
1 GB EIO Drive optional optional optional optional
Envelope feeder available available available available
LocalTalk optional optional standard standard
10Base-2 optional optional optional optional
Duplexer optional optional optional optional
1-4 Printer Description EN
Identification
Model and Serial Numbers
The model number and serial numbers are listed on identification
labels located under the top cover on the right side of the printer. The
model number is alphanumeric, such as USEB000194 for the HP
LaserJet 4000 N printer.
The serial number contains information about the Country of Origin,
the Revision Level, the Production Code, and Production Number of
the printer.
The rear labels also contain power rating and regulatory information
as shown in Figure 1-1.
Figure 1-1 Sample Labels
EN Identification 1-5
Site Requirements
The following environmental specifications must be maintained to
ensure the proper operation of the printer. Consider the following
points before installing the printer:
z Install in a well-ventilated, dust-free area.
z Install on a hard, flat and continuous surface, with all four printer
feet level. Do not install on carpet or other soft surfaces.
z Ensure adequate power is supplied. Printer power requirements
are listed in Table 1-3.
z Install where temperature and humidity is stable, away from water
sources, humidifiers, air conditioners, refrigerators, or other major
appliances.
z Install away from direct sunlight, open flames, or ammonia fumes.
If the printer is placed near a window, make sure the window has
a curtain or blind to block any direct sunlight.
z Install with enough space around the printer for proper access
and ventilation.
z Install printer away from the direct flow of exhaust from air
ventilation systems.
Table 1-3. Electrical Specifications
Volts Frequency Amps Watts (typical)
100-127 VAC±10% 50/60 Hz ±3Hz 8 amps printing = 330
standby = 18
PowerSave On = 16 (EPA
ENERGY STAR®)
220-240 VAC±10% 50/60 Hz ±3Hz 4 amps printing = 330
standby = 18
PowerSave On = 16 (EPA
ENERGY STAR®)
1-6 Printer Description EN
Space Requirements
39.67 inches (100.76 cm) 16.77 inches (42.6 cm)
full length, trays and rear output bin open printer only, rear output bin closed
15.4 inches
(39.0 cm)
HP LaserJet
4000/4000 N
18.5 inches
(46.99 cm)
with cover open
13.3 inches
(34.3 cm)
with cover closed
HP LaserJet
4000 T/4000 TN
20.1 inches
(51.19 cm)
with cover open
15.5 inches
(38.5 cm)
with cover closed
Figure 1-2 Printer Dimensions
Printer Weight (without toner cartridge)
z HP LaserJet 4000/4000 N printers: 39.27 lb (17.85 kg)
z HP LaserJet 4000 T/4000 TN printers: 45.66 lb (20.71 kg)
EN Site Requirements 1-7
Environmental Requirements
Table 1-4. Printer and Toner Cartridge Environmental Conditions
Item Operating Storage
Temperature 50-91° F (10-32° C) 32 TO 95°F (0 to 35°C)
Relative Humidity 20-80% RH (with no 10% TO 95% RH
condensation)
Table 1-5. Acoustic Emissions (Per ISO 9296)
Printer State Sound Power
Printing, 17 pages per Lwad= 6.6 bels (A)
minute (ppm)
Printing, 8 ppm Lwad= 6.2 bels (A)
PowerSave Lwad= 0 bels (A)
1-8 Printer Description EN
Paper Specifications
The following tables show paper specifications for the printer.
Table 1-6. Paper Specifications, Tray 1
Supported Dimensions1 Weight Capacity2
Paper
Minimum Size 3 by 5 in
(custom) (76 by 127 mm) 16 to 53 lb 100 sheets of 20 lb
Maximum Size 8.5 by 14 in (60 to 199 g/m2) (75 g m2) paper
(216 by 356 mm)
Transparencies Thickness:
0.0039 in to 0.0045 in 75 transparencies
(0.099 to 0.114 mm)
Labels Same as minimum Thickness:
and maximum paper 0.005 in to 0.007 in
50 labels
sizes listed above. (0.127 mm to
0.178 mm)
Envelopes 20 to 28 lb
10 envelopes
(75 to 105 g/m2)
1. The printer supports a wide range of paper sizes. Check the printer software for supported sizes.
To print custom-size paper see the user’s guide.
2. Capacity may vary depending on paper weight and thickness, and environmental conditions.
EN Paper Specifications 1-9
Table 1-7. Paper Specifications, Tray 2 (HP LaserJet 4000/4000 N)
Supported Dimensions1 Weight Capacity2
Paper
Letter 8.5 by 11 in
(216 by 279 mm)
500 sheets of 20 lb
A4 8.3 by 11.7 in 16 to 28 lb
(75 g/m2) paper
(210 by 297 mm) (60 to 105 g/m2)
50-100 transparencies
Legal 8.5 by 14 in
(216 by 356 mm)
1. The printer supports a wide range of paper sizes. Check the printer software for supported sizes.
2. Capacity may vary depending on paper weight and thickness, and environmental conditions.
Table 1-8. Paper Specifications, Trays 2 and 3 (HP LaserJet 4000 T/4000 TN)
Supported Dimensions1 Weight Capacity2
Paper
Letter 8.5 by 11 in
(216 by 279 mm)
A4 8.3 by 11.7 in
(210 by 297 mm)
Executive 7.3 by 10.5 in
(191 by 267 mm)
250 sheets of 20 lb
16 to 28 lb
Legal 8.5 by 14 in (75 g/m2) paper
(216 by 356 mm) (60 to 105 g/m2) 50-100 transparencies
6.9 by 9.9 in
B5 (ISO) (custom3)
(176 by 250 mm)
7.2 by 10 in
B5 (JIS)
(182 by 257 mm)
5.8 by 8.2 in
A5 (custom3)
(148 by 210 mm)
1. The printer supports a wide range of paper sizes. Check the printer software for supported sizes.
2. Capacity may vary depending on paper weight and thickness, and environmental conditions.
3. To print custom-size paper see the user’s guide.
1-10 Printer Description EN
Table 1-9. Paper Specifications, Optional 500-Sheet Tray
Supported Dimensions1 Weight Capacity2
Paper
Letter 8.5 by 11 in
(216 by 279 mm)
A4 8.3 by 11.7 in
(210 by 297 mm)
Executive 7.3 by 10.5 in
(191 by 267 mm)
Legal 8.5 by 14 in
(216 by 356 mm)
500 sheets of 20 lb
B5 (ISO) (custom3) 6.9 by 9.9 in 16 to 28 lb
(75 g/m2) paper
(176 by 250 mm) (60 to 105 g/m2)
50-100 transparencies
B5 (JIS) 7.2 by 10 in
(182 by 257 mm)
A5 (custom3) 5.8 by 8.2 in
(148 by 210 mm)
Custom3 5.8 by 8.2 in
to 8.5 by 14 in
(149 by 210 mm
to 216 by 356 mm)
1. The printer supports a wide range of paper sizes. Check the printer software for supported sizes.
2. Capacity may vary depending on paper weight and thickness, and environmental conditions.
3. To print custom-size paper see the user’s guide.
Table 1-10. Paper Specifications, Optional Envelope Feeder
Supported Dimensions1 Weight Capacity2
Paper
Minimum Size 3.5 by 6.3 in
(90 by 160 mm) 20 to 28 lb
75 envelopes
Maximum Size 7 by 10 in (75 to 105 g/m2)
(178 by 254 mm)
1. The printer supports a wide range of paper sizes. Check the printer software for supported sizes.
2. Capacity may vary depending on paper weight and thickness, and environmental conditions.
EN Paper Specifications 1-11
Table 1-11. Paper Specifications, Optional Duplex Printing Accessory (Duplexer)
Dimensions Weight Capacity
Letter 8.5 by 11 in
(216 by 279 mm)
A4 8.3 by 11.7 in
(210 by 297 mm)
Executive 7.3 by 10.5 in 16 to 28 lb
not applicable
(191 by 267 mm) (60 to 105 g/m2)
Legal 8.5 by 14 in
(216 by 356 mm)
B5 (JIS) 7.2 by 10 in
(182 by 257 mm)
Supported Types of Paper
The printer supports the following types of paper:
z plain z preprinted
z letterhead z transparency
z prepunched z labels
z bond z recycled
z color z card stock
z rough z user-defined (5 types)
1-12 Printer Description EN
