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Combined Service Manual
HP LaserJet 4 / 4M (C2001A / C2021A) HP LaserJet 4 Plus / 4M Plus (C2037A / C2039A) HP LaserJet 5 / 5M /5N (C3916A/C3917A/ C3952A)
© Copyright Hewlett-Packard Company 1996 All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. Publication number C3916-90984 First edition, March 1996 Printed in USA
Warranty The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties or merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damaged in connection with the furnishing, performance, or use of this material.
WARNING Electrical Shock Hazard To avoid electrical shock, use only supplied power cords and connect only to properly grounded (3-hole) wall outlets.
Hewlett-Packard Company 11311 Chinden Boulevard Boise, Idaho 83714
Conventions
This manual uses the following conventions: Unless specifically stated otherwise, information applies to all seven printer models (LaserJet 4/4 Plus/4 M/4 M Plus/5/5 M/5 N). Most procedures are combined for all printers, except where they differ substantially. Color is used to emphasize items which are important to the material under discussion. The names of major printer parts and assemblies are Capitalized. Bold is used for emphasis, particularly in situations where italic type would be confusing. Italic type is used to indicate related documents or emphasis. COMPUTER type indicates text as seen on a computer monitor. DISPLAY type indicates text as seen on the printer's 16 character LCD display panel (LaserJet 4Plus/4MPlus only). [KEYFACE] indicates keys on a computer keyboard or on the printer's control panel. Examples include [Enter], [On Line] and Go.
Note
Notes contain important information set off from the text. Caution messages alert you to the possibility of damage to equipment or loss of data.
CAUTION
W A R N I N G ! Warning messages alert you to the possibility of personal injury.
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Contents
1 Product Information
Product Family Information . . . . . . Identification . . . . . . . . . . . . . . Specifications . . . . . . . . . . . . . . . HP LaserJet 4 and 4 Plus . . . . . . . Related Documentation . . . . . . . . . Safety Information . . . . . . . . . . . . . Product and Laser Safety . . . . . . . FCC RFI Statement . . . . . . . . . . Laser Statement (Sweden/Finland) . . Toner Safety . . . . . . . . . . . . . Ozone Statement . . . . . . . . . . . . Doing Business with HP . . . . . . . . . . Technical Assistance . . . . . . . . . HP ASAP 1-800-333-1917 (U.S.) . . . . HP FIRST . . . . . . . . . . . . . . . . HP FIRST, U.S. . . . . . . . . . . . . . HP FIRST, Europe . . . . . . . . . . . HP AUDIO-TIPS . . . . . . . . . . . . HP CompuServe Forum . . . . . . . . Customer Information Centers . . . . . Customer Support Center (Assist Line) Printer Drivers . . . . . . . . . . . . . European Customer Support Center . Other Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 . 1-3 . 1-5 . 1-5 . 1-7 . 1-8 . 1-8 . 1-9 1-10 1-11 1-11 1-12 1-12 1-12 1-12 1-12 1-12 1-13 1-13 1-13 1-13 1-13 1-14 1-14
2 Site Planning and Requirements
Site Requirements . . . . . . . Printer Space Requirements Print Media Specifications . Adhesive Labels . . . . . . Label Construction . . . . . Overhead Transparencies . Envelopes . . . . . . . . . . Envelope Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2-2 2-3 2-5 2-5 2-6 2-6 2-7
3 Configuration
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Using The Control Panel . . . . . . . . . . . . . . . . . . 3-2 Contents-1
Control Panel Keys . . . . . . . . . . . . . . . . . Reset Menu . . . . . . . . . . . . . . . . . . . . . Control Panel Menus . . . . . . . . . . . . . . . . . Printer Features . . . . . . . . . . . . . . . . . . . . . Page Protection (HP LaserJet 4 only) . . . . . . . . Resource Saving (HP LaserJet 4 Plus and 5 only) . I/O Buffering (HP LaserJet 4 Plus and 5 only) . . . EconoMode (HP LaserJet 4 Plus and 5 only) . . . . Resolution Enhancement (REt) . . . . . . . . . . . Memory Enhancement technology (MEt) (HP LaserJet 4 Plus and 5 only) . . . . . . . . . Density . . . . . . . . . . . . . . . . . . . . . . . Network Security . . . . . . . . . . . . . . . . . . . . Remote Control Panel (DOS) . . . . . . . . . . . . HP LaserJet Utility (Macintosh) . . . . . . . . . . HP JetAdmin Utility (Novell Networks) . . . . . . Service Mode . . . . . . . . . . . . . . . . . . . . . . Setting the Page Count . . . . . . . . . . . . . . . Setting the Cold Reset Default . . . . . . . . . . Cold Reset . . . . . . . . . . . . . . . . . . . . . . . Understanding the PCL Self Test Printout . . . . . Changing the Control Panel Display Language . . . Test Print Button . . . . . . . . . . . . . . . . . . . System Configuration . . . . . . . . . . . . . . . . MS-DOS System Configuration . . . . . . . . . . . Parallel DOS Commands . . . . . . . . . . . . . . Serial MS-DOS Commands . . . . . . . . . . . . . Printer I/O Configuration . . . . . . . . . . . . . . . . Parallel Menu . . . . . . . . . . . . . . . . . . . . Advanced Functions . . . . . . . . . . . . . . . . Serial Configuration . . . . . . . . . . . . . . . . . Serial Protocol . . . . . . . . . . . . . . . . . . . . BAUD Rate . . . . . . . . . . . . . . . . . . . . . . Pacing (Handshaking) . . . . . . . . . . . . . . Serial Cable Pin-outs . . . . . . . . . . . . . . . . . . DB-9 RS-232 Serial Connection -- HP LaserJet 4 . DB-25 RS-232 Serial Connection -- HP LaserJet 4 Plus/5 . . . . . . . . . . . . . . . . . . . . . . . . DB-25 Serial Connection -- HP LaserJet 4 . . . . DB-25 RS-232 Serial Connection -- HP LaserJet 4 Plus/5 . . . . . . . . . . . . . . . . . . . . . . . . RS-422A Serial Connection (Not available on the HP LaserJet 4 Plus or 5 printers) . . . . . . . . RS-422A Serial Configuration (LaserJet 4 only) . . Modular I/O Configuration . . . . . . . . . . . . . . . Contents-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 3-2 . 3-5 . 3-6 3-13 3-13 3-14 3-15 3-16 3-16 3-17 3-17 3-18 3-18 3-18 3-19 3-20 3-21 3-22 3-23 3-24 3-28 3-29 3-31 3-31 3-31 3-32 3-33 3-33 3-33 3-33 3-33 3-33 3-34 3-35 3-35
. 3-36 . 3-37 . 3-38 . 3-39 . 3-39 . 3-40
Printer Drivers . . . . . . . . . . . . . . . . . . . . Install Printer Drivers and Utilities . . . . . . How to Obtain Printer Drivers . . . . . . . . . . DOS Utilities . . . . . . . . . . . . . . . . . . . . . Packing the Printer . . . . . . . . . . . . . . . . Repackaging Instructions . . . . . . . . . . . Packing Checklist . . . . . . . . . . . . . . . . . Installing The Optional Lower Cassette . . . . . Loading Paper into the Optional Lower Cassette Envelope Feeder Installation . . . . . . . . . . . . LaserJet 4 and 4 Plus . . . . . . . . . . . . . . . LaserJet 5 . . . . . . . . . . . . . . . . . . . . . SIMM Installation . . . . . . . . . . . . . . . . . . Protecting the SIMM Board . . . . . . . . . . . Memory Requirements . . . . . . . . . . . . . . Accessing the SIMM Slots . . . . . . . . . . . . Installing the SIMM Boards . . . . . . . . . . . Testing a SIMM Board . . . . . . . . . . . . . . . Memory SIMM . . . . . . . . . . . . . . . . . . Running a Self Test Printout . . . . . . . . . . . Personality SIMM (PostScript) . . . . . . . . . . . . . . . . . . . Troubleshooting a SIMM Board . . . . . . . . . . . Service / Error Messages . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .
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3-41 3-41 3-41 3-42 3-43 3-43 3-43 3-44 3-45 3-49 3-50 3-50 3-51 3-51 3-53 3-55 3-55 3-57 3-57 3-57
. . . 3-58 . . . 3-59 . . . 3-59
4 Preventive Maintenance
Introduction . . . . . . . . . . . . . . . . . . . . . . Life Expectancy of Consumables . . . . . . . . . . . Service Checkpoints . . . . . . . . . . . . . . . . . . Cleaning Your Printer . . . . . . . . . . . . . . . Toner Cartridge . . . . . . . . . . . . . . . . . . . Saving Toner with EconoMode (HP LaserJet 4 Plus and 5 Only) . . . . . . . . . . . . . . . . . Storing the Toner Cartridge . . . . . . . . . . . . Installing the Toner Cartridge . . . . . . . . . . Non-HP Toner Cartridges . . . . . . . . . . . . . Clearing the TONER LOW Message . . . . . . . Periodic Maintenance Procedures . . . . . . . . . . Removing the MP Tray (Tray 1) Pickup Roller and Separation Pad . . . . . . . . . . . . . . . . . Removing the PC (Tray 2) Pickup Roller . . . . Removing the Lower Cassette (LC) or (Tray 3) Pickup Roller . . . . . . . . . . . . . . . . . . Removing and Replacing the Transfer Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-2 4-3 4-4 4-5
. 4-6 . 4-6 . 4-7 . 4-9 4-10 4-11
. . 4-11 . . 4-13 . . 4-14 . . 4-15
Contents-3
Removing the Transfer Roller Replacing the Transfer Roller
. . . . . . . . . . . . 4-16 . . . . . . . . . . . . 4-16
5 Functional Overview
Introduction . . . . . . . . . . . . . . . . . . . . . DC Controller System . . . . . . . . . . . . . . DC Controller Loads . . . . . . . . . . . . . . . Serial Data Communication . . . . . . . . . . . Solenoids . . . . . . . . . . . . . . . . . . . . . Photosensors . . . . . . . . . . . . . . . . . . . Microswitches . . . . . . . . . . . . . . . . . . PC (Tray 2) and LC (Tray 3) Tray Size Sensing System . . . . . . . . . . . . . . . . . . . . . Motors . . . . . . . . . . . . . . . . . . . . . . Paper Jam Detection . . . . . . . . . . . . . . Formatter System . . . . . . . . . . . . . . . . . I/O Control . . . . . . . . . . . . . . . . . . . . Memory Management . . . . . . . . . . . . . . Data Processing . . . . . . . . . . . . . . . . . PJL Overview . . . . . . . . . . . . . . . . . . Image Formation System . . . . . . . . . . . . . . Photosensitive Drum . . . . . . . . . . . . . . Drum Sensitivity . . . . . . . . . . . . . . . . Cleaning Stage . . . . . . . . . . . . . . . . . Conditioning Stage . . . . . . . . . . . . . . . Writing Stage . . . . . . . . . . . . . . . . . . Developing Stage . . . . . . . . . . . . . . . . Transferring Stage . . . . . . . . . . . . . . . Fusing Stage . . . . . . . . . . . . . . . . . . Paper Feed System . . . . . . . . . . . . . . . . Printing from the MP Tray (Tray 1) . . . . . . Printing from the PC Tray (Tray 2) . . . . . . Power System . . . . . . . . . . . . . . . . . . . . Basic Sequence of Operation . . . . . . . . . . . Standard Printer Operation . . . . . . . . . . Timing Diagrams . . . . . . . . . . . . . . . . Warmup Period . . . . . . . . . . . . . . . . . Standby Period . . . . . . . . . . . . . . . . . PowerSave . . . . . . . . . . . . . . . . . . . . Initial Rotation Period . . . . . . . . . . . . . Print Period . . . . . . . . . . . . . . . . . . . Last Rotation Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5-2 5-3 5-4 5-5 5-6 5-8
. 5-9 5-10 5-11 5-12 5-12 5-14 5-14 5-15 5-16 5-17 5-17 5-18 5-19 5-20 5-22 5-24 5-25 5-26 5-29 5-30 5-31 5-33 5-33 5-34 5-37 5-37 5-37 5-38 5-40 5-42
Contents-4
6 Removal and Replacement
Required Tools . . . . . . . . . . . . . . . . . . . . . . Hardware Review . . . . . . . . . . . . . . . . . . . . Removing the Covers . . . . . . . . . . . . . . . . . . Right Side Cover Removal . . . . . . . . . . . . . . Top Cover Removal . . . . . . . . . . . . . . . . . Left Side Cover Removal . . . . . . . . . . . . . . . Rear Door Removal . . . . . . . . . . . . . . . . . . Font Door Cover Removal (LJ 5 Right Front Cover Removal) . . . . . . . . . . . . . . . . . . Multi-Purpose (MP) Tray (Tray 1) Door Removal . . Multi-Purpose (MP) Tray (Tray 1) Removal . . . . . Assemblies Removal . . . . . . . . . . . . . . . . . . . Power Supply Removal . . . . . . . . . . . . . . . . Paper Feed Assembly Removal . . . . . . . . . . . . High Voltage Power Supply (HVPS) Removal . . . . Fuser Assembly Removal . . . . . . . . . . . . . . . Control Panel and Overlay Removal . . . . . . . . . Removing the SIMMs Door . . . . . . . . . . . . . Formatter Cage Removal . . . . . . . . . . . . . . . Formatter PCA Removal . . . . . . . . . . . . . . . DC Controller Removal . . . . . . . . . . . . . . . . DC Controller Installation . . . . . . . . . . . . . . Main Motor Assembly Removal . . . . . . . . . . . Gear Assembly Removal . . . . . . . . . . . . . . . Fan Removal . . . . . . . . . . . . . . . . . . . . . Output Assembly Removal . . . . . . . . . . . . . . Paper Exit Sensor (PS3) Removal . . . . . . . . . . Scanner Assembly Removal . . . . . . . . . . . . . Lower Cassette Assemblies . . . . . . . . . . . . . . . Lower Cassette Sensor PCA Removal . . . . . . . . Lower Cassette Pickup Motor Removal . . . . . . . Replacing Fuser Assembly Parts . . . . . . . . . Fuser Assembly Configuration . . . . . . . . . . . Removing the Fuser Roller Heat Lamp . . . . . . . Fuser Assembly Thermoswitch Removal . . . . . . Thermistor Removal . . . . . . . . . . . . . . . . . Paper Control PCA Removal . . . . . . . . . . . . . Sensor PCA Removal . . . . . . . . . . . . . . . . . PS1 and PS2 Sensor Assembly Removal . . . . . . High Voltage Contact Plate (HVCP) and Paper Guide Removal . . . . . . . . . . . . . . . . . . . . . . . Accessing the High Voltage Contact Plate and Feed Guide Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 . 6-2 . 6-4 . 6-4 . 6-5 . 6-7 . 6-8 6-10 6-12 6-13 6-15 6-15 6-18 6-21 6-22 6-23 6-25 6-27 6-29 6-33 6-35 6-37 6-38 6-39 6-41 6-42 6-43 6-44 6-44 6-45 6-47 6-48 6-49 6-55 6-56 6-59 6-60 6-61
. 6-62 . 6-62
Contents-5
Removing the High Voltage Contact Assembly and Feed Guide Assembly . . . . . . . . . . . . . . . . 6-67 Replacing the High Voltage Contact Assembly/Feed Guide Assembly . . . . . . . . . . 6-68 Interconnect PCA Removal . . . . . . . . . . . . . . . 6-69
7 Troubleshooting
LaserJet 5 Error Map . . . . . . . . . . . . . . . . . Pre-Troubleshooting Procedures . . . . . . . . . . Preliminary Operating Checks . . . . . . . . . . Printer Message Troubleshooting . . . . . . . . Printer Message Summary Table . . . . . . . . Clearable Warnings . . . . . . . . . . . . . . . Printer Message Troubleshooting Procedures . . . . Blank Display . . . . . . . . . . . . . . . . . . . MP/PC/LC (Tray 1/2/3) LOAD Message . . . . Cassette Size Switches (SW603, SW604, SW605) Functional Check . . . . . . . . . . . . . . . . Paper Size Sensing Lower Cassette . . . . . . . PC Empty Sensor (PS2) Functional Check . . . . PS4 Check (MP Tray Empty Sensor) . . . . . . . 12 Printer Open Message . . . . . . . . . . . . . SW601 Functional Check . . . . . . . . . . . . . 13 PAPER JAM Message . . . . . . . . . . . . . PS1 (Input/Registration Sensor) Check . . . . . . PS3 (Exit Sensor) Check . . . . . . . . . . . . . . Pickup Motor Functional Test (M2) . . . . . . . . Lower Cassette Functional Check . . . . . . . . 14 NO EP CART Message . . . . . . . . . . . . . 16 Toner Low Message . . . . . . . . . . . . . . 41.X ERROR Message . . . . . . . . . . . . . . 50 SERVICE Error - Fuser Malfunction . . . . . 51 ERROR Message . . . . . . . . . . . . . . . . 52 ERROR Scanner Malfunction . . . . . . . . . Laser/Scanner Assembly Functional Checks . . . 57 (or 57.1) SERVICE Message (Main Motor Failure) . . . . . . . . . . . . . . . . . . . . . Main Motor Functional Checks . . . . . . . . . . 58 (or 57.2) SERVICE (Fan Failure) . . . . . . . Image Defect Summary . . . . . . . . . . . . . . . PS5 Check (MP Tray Paper End Sensor) Functional Test . . . . . . . . . . . . . . . . . Image Formation Troubleshooting . . . . . . . . . . Half Self-Test Functional Check . . . . . . . . . Contents-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-A . 7-1 . 7-1 . 7-2 . 7-2 7-10 7-12 7-12 7-13 7-15 7-16 7-17 7-17 7-18 7-19 7-20 7-22 7-23 7-23 7-24 7-25 7-25 7-27 7-29 7-31 7-32 7-32 7-33 7-33 7-34 7-35
. . 7-44 . . 7-49 . . 7-49
Drum Rotation Functional Check . . . . . High Voltage Power Supply Assembly . . Interface Troubleshooting . . . . . . . . . . . Communications Check . . . . . . . . . . Test Message . . . . . . . . . . . . . . . . AUTOEXEC.BAT Standard Configurations Parallel DOS Commands . . . . . . . . . Serial MS-DOS Commands . . . . . . . . Communications Checks . . . . . . . . . . MIO Troubleshooting . . . . . . . . . . . . . Troubleshooting Hints . . . . . . . . . . . Explanation of Self Test Printout . . . . . Troubleshooting Aids . . . . . . . . . . . . . Component Locations . . . . . . . . . . . . Repetitive Defect Template . . . . . . . . Voltage Test Points . . . . . . . . . . . . Measuring the DC Voltage Levels . . . . .
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7-50 7-51 7-52 7-52 7-52 7-53 7-53 7-53 7-54 7-56 7-56 7-57 7-59 7-59 7-67 7-69 7-69
8 Parts and Diagrams
How To Use the Parts Lists . . . . . . . Parts Lists and Illustrations . . . . . Accessory Parts . . . . . . . . . . . . . SIMM Memory . . . . . . . . . . . . Miscellaneous Parts and Accessories Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 . 8-2 8-33 8-38 8-39 8-40
A Duplexer
Functional Overview . . . . . . . . . . . . Duplex Printing . . . . . . . . . . . . . . . Switchback Assembly . . . . . . . . . . . . Holding Tray . . . . . . . . . . . . . . . . Electrical Overview . . . . . . . . . . . . . Installing the Optional Duplexer . . . . . . . Removal and Replacement . . . . . . . . . . Required Tools . . . . . . . . . . . . . . . Removing the Covers . . . . . . . . . . . . Removing the Switchback Covers . . . . . Removing the Side Cover on Power Side . Removing the Side Cover on Gear Side . . Removing the Back Cover . . . . . . . . . Removing the Front Cover . . . . . . . . . Removing Internal Duplexer Components . Removing the Fan/Motor/Solenoid/Sensor . Removing the Switchback Paper Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 A-3 A-3 A-3 A-5 A-6 A-8 A-8 A-9 A-9 A-10 A-11 A-13 A-13 A-14 A-14 A-15
Contents-7
Removing the Paper Guide Assembly . . . . . . Removing the Paper Roller . . . . . . . . . . . Removing the Control PCA . . . . . . . . . . . Removing the Power PCA . . . . . . . . . . . . Removing the Holding Tray Center Paper Guide Removing the Holding Tray Belt . . . . . . . . Removing the Holding Tray Paper Sensor . . . Removing the Switchback Assembly . . . . . . Parts and Diagrams for the Duplexer . . . . . . .
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. . . . . . . . .
A-16 A-17 A-20 A-22 A-23 A-24 A-26 A-27 A-28
B LaserJet 5/5M/5N Printer
Product Information . . . . . . . . . . . . . . . . . Product Family Information . . . . . . . . . . . Identification . . . . . . . . . . . . . . . . . . . . Specifications . . . . . . . . . . . . . . . . . . . . HP LaserJet 5 / 5M / 5N . . . . . . . . . . . . . Related Documentation . . . . . . . . . . . . . . Laser Statement (Sweden/Finland) . . . . . . Control Panel Layout . . . . . . . . . . . . . . . . Control Panel Keys . . . . . . . . . . . . . . . . Control Panel Menus . . . . . . . . . . . . . . . To change a control panel setting: . . . . . . . . Printing Menu . . . . . . . . . . . . . . . . . . PCL Fonts Menu . . . . . . . . . . . . . . . . . PostScript Menu . . . . . . . . . . . . . . . . . Job Menu . . . . . . . . . . . . . . . . . . . . . Configuration Menu . . . . . . . . . . . . . . . Memory Configuration Menu . . . . . . . . . . Parallel Menu . . . . . . . . . . . . . . . . . . Serial Menu . . . . . . . . . . . . . . . . . . . . Resets Menu . . . . . . . . . . . . . . . . . . . Test Menu . . . . . . . . . . . . . . . . . . . . Service Mode . . . . . . . . . . . . . . . . . . . . Setting the Page Count . . . . . . . . . . . . . Setting the Cold Reset Default . . . . . . . . . Skip Demo . . . . . . . . . . . . . . . . . . . . Big Data . . . . . . . . . . . . . . . . . . . . . Diagnostics . . . . . . . . . . . . . . . . . . . . Programming a Flash SIMM . . . . . . . . . . . . Changing the Control Panel Display Language NVRAM Init . . . . . . . . . . . . . . . . . . . . . Understanding the PCL Self Test Printout . . . . Infrared Communication . . . . . . . . . . . . . . System Requirements . . . . . . . . . . . . . . Contents-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2 . B-3 . B-5 . B-6 . B-6 . B-8 . B-9 B-10 B-10 B-13 B-13 B-15 B-17 B-18 B-18 B-19 B-21 B-22 B-22 B-23 B-24 B-25 B-26 B-27 B-28 B-28 B-28 B-29 B-30 B-31 B-32 B-34 B-35
To Print Using the Infrared Port . . . . . . . . . . . . B-36 Troubleshooting IR Printing Problems . . . . . . . . B-38 Infrared Port Not Responding . . . . . . . . . . . . . B-41
Contents-9
Contents-10
1
Product Information
Table 1-1
Features
Model Printer Speed Resolution Expandable I/O Buffer Resource Savings MEt REt Languages PostScript Upgradeable Resident Memory Printer Max. Memory Capacity Available Memory Slots PC Tray Capacity MP Tray Capacity Output Capacity 500 Sheet Optional Feeder Duplex Option Envelope Feeder Typefaces Interfaces
Printer Features
HP LJ 4
C2001A 8 ppm 300/600 dpi No No No Yes Enhanced PCL5 C2080A* 2 MByte 34 MByte Four 250 Sheets 100 Sheets 250 Sheets C2083A N/A C2082A 45 PCL Serial (25 pin) Parallel Yes No Yes No Up to 20,000
HP LJ 4M
C2021A 8 ppm 300/600 dpi No No No Yes Enhanced PCL5, Postscript Level 2 N/A 6 MByte 26 MByte Two** 250 Sheets 100 Sheets 250 Sheets C2083A N/A C2082A 45 PCL 35 Postscript Serial (25 pin) Parallel, Local Talk Yes (J2341A) No Yes No Up to 20,000
HP LJ 4 Plus HP LJ4M Plus
C2037A 12 ppm 300/600 dpi Yes Yes Yes Yes Enhanced PCL5 C3129A* 2 MByte 66 MByte Four 250 Sheets 100 Sheets 250 Sheets C2083D C3157A C2082B 45 PCL Serial (9 pin) Parallel Yes Yes Yes Yes Up to 20,000 C2039A 12 ppm 300/600 dpi Yes Yes Yes Yes Enhanced PCL5, Postscript Level 2 N/A 6 MByte 50 MByte Two ** 250 Sheets 100 Sheets 250 Sheets C2083D C3157A C2082B 45 PCL 35 Postscript Serial (9 pin) Parallel Local Talk Yes (J2552A) Yes Yes Yes Up to 20,000
MIO Slots EconoMode Cartridge Slot Power Save Monthly Usage (pages)
*The PostScript upgrade requires an additional 4 MB SIMM. **PostScript & Memory SIMM already occupy 2 slots.
Product Information 1-1
Product Family Information
The model HP C2021A is identical to the model HP C2001A from a hardware standpoint, as is the model HP C2039A to the model HP C2037A. The models HP C2021A and C2039A printers include the following features:
· PostScript Level 2 SIMM · AppleTalk MIO Card · 4 MBytes of RAM
In every instance the repair procedures for all products are similar. Some LaserJet 4 accessories are compatible with the LaserJet 4 Plus and some are not. The compatibility chart below may be used when there is a question of accessory compatibility. Table 1-2
Accessory C2082A C2082B C2083A C2083D C2085A C2085D C3129A C2080A C2063A C2064A C2065A C2066A C3130A * C3131A * C3132A* C3133A* C3146A * C3157A 92298A
Product Family Compatibility Matrix
Description Envelope Feeder Envelope Feeder Optional 500 Sheet Feeder Assembly Optional 500 Sheet Feeder Assembly 250 Sheet Universal PC tray 250 Sheet Universal PC tray PostScript SIMM PostScript SIMM Memory (1 MByte) Memory (2 MByte) Memory (4 MByte) Memory (8 MByte) Memory (1 MByte) Memory (2 MByte) Memory (4 MByte) Memory (8 MByte) Memory (16 MByte) Duplex Assembly Toner Cartridge Does it work in the HPLaserJet 4? Yes Yes Yes Yes Yes No No Yes Yes Yes Yes Yes No No No No No No Yes Does it work in the HPLaserJet 4 Plus? No Yes No Yes No Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
*If HP LaserJet 4 Plus Optional Memory (C3130A, C3131A, C3132A, C3133 or C3146A) is installed in the HP LaserJet 4, the printer will display a "53.1X.08 ERROR" (X indicates the position of the SIMMs slot).
1-2 Product Information
Identification
The model number is on a label placed on the outside, rear cover of the printer. The model number (C2001A, C2021A, C2037A or C2039A) is found at the top of the label. The model number is the base number for all printers. The serial number contains information about the printer Country of Origin. The serial number Alpha section refers to the Country of Origin, the Revision Level and the Production Code. The Numeric section refers to the production number of the printer. See the following for information about the production codes. A typical serial number would consist of: CC R P XXXXXX Code CC R P XXX-XXXX Meaning Country of Origin Revision Number - Alphanumeric, no vowels Production Code - Alphanumeric, no vowels Numeric serial number - Numeric, no alphas
C2037A
POWER RA TING:
100-120V 50-60 Hz, 7.8A
MANUFACTURED:
FCC ID: B94C2037A
C2037A
Made in Japan
XXX-XXXX
24131
TR1
Figure 1-1
Printer Identification Label for the HP LaserJet 4 Plus/4M Plus
Product Information 1-3
Figure 1-2
Printer Identification Label for the HP LaserJet 4/4M
1-4 Product Information
Specifications
HP LaserJet 4 and 4 Plus
Table 1-3 Printer Dimensions
HP LaserJet 4/4M (C2001A/C2021A) 16.4 in (416 mm) 15.9 in (403 mm) 11.7 in (297 mm) HP LaserJet 4 Plus HP LaserJet 4M Plus (C2037A/C2039A) 16.4 in (416 mm) 15.9 in (403 mm) 11.7 in (297 mm) 37 lbs. (18.3 kg)
Dimension
Width Depth Height
Weight (with toner cartridge) 37 lbs. (18.3 kg)
Table 1-4
Power Specifications
Watts (typical)
Volts 100 Vac ± 10% 120 Vac ± 10% 220 Vac ± 10% 240Vac ± 10%
Freq 50/60 Hz ± 2 Hz 50/60 Hz ± 2 Hz 50/60 Hz ± 2 Hz 50/60 Hz ± 2 Hz
4/4M printing = 195 standby = 55 printing = 195 standby = 55
4 Plus/4M Plus printing = 300 standby = 80 PowerSave=25 printing =300 standby = 80 PowerSave=25
Product Information 1-5
Table 1-6
Status
Electrical Specifications
4/4M 100/115 V 4 Plus/4M Plus 4/4M 220/240 V 4 Plus/4M Plus 4.0 amps 22 amps 11 msec 22 amps 200 msec
Product Rating Peak Inrush Current 25% Decay Time Peak Fuser Current Return-to Average Time
6.4 amps 22 amps 13 msec 38 amps 200 msec
7.8 amps 3.1 amps 22 amps 18 msec 51 amps 200 msec 22 amps 11 msec 17 amps 200 msec
Table 1-5
Environmental Specifications
Temperature: 10° C to 32.5° C (50° F to 90.5° F) Humidity: 20-80% (no condensation) Temperature: -20° to 60° C (-4° to 140°F) Humidity: 15-90% (no condensation)
Operating Environment Storage Environment (not including toner cartridge)
1-6 Product Information
Related Documentation
The following manuals can be ordered from Hewlett-Packard's Support Materials Organization (SMO). The phone number for SMO is (800) 227-8164. Table 1-7 Printer Documentation Part Number C2001-90901 C2001-90912 5010-3994 J2552-90011 J2552-90001
HP LaserJet 4 Documents--Description Your Guide to Setting Up the HP LaserJet 4 Printer HP LaserJet 4 User's Manual HP PCL5 Printer Language Technical Reference Package HPJet Direct Network Installation Guide HPJet Direct Network Software Configuration Guide HP LaserJet 4 Plus Documents--Description HP LaserJet 4 Plus and 4M Plus User's Manual HP LaserJet 4 Plus Getting Started Guide HP LaserJet 4M Plus Getting Started Guide
Part Number C2037-90901 C2037-90917 C2039-90901
Product Information 1-7
Safety Information
Product and Laser Safety
HP printers are UL 1950 listed, CSA 22.2 950 certified, and manufactured in accordance with DIN IEC 950. The printers are certified as "Class 1" laser products under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard, according to the Radiation Control for Health and Safety Act of 1968. The printers do not produce hazardous laser radiation. Since radiation emitted inside the printer is completely confined within protective housings and external covers, the laser beam cannot escape during any phase of normal user operation. The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration implemented regulations for laser products on August 2, 1976. These regulations apply to laser products manufactured from August 1, 1976. Compliance is mandatory for products marketed in the United States. Note In accordance with West German standard VDE0836 (VDE-Bestimmung fur die Elektrische Sicherheit von Lasergeraten und Anlagen), two servicemen are required to service each unit.
Since the laser beam is invisible, the label on the following page is attached to the Laser Scanner Cover inside the printer where there is danger of exposure to laser radiation. Caution Never service or operate the printer with the protective cover removed from the laser scanner assembly. The reflected beam, although invisible, can damage your eyes.
1-8 Product Information
FCC RFI Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
· Reorient or relocate the receiving attenna. · Increase the separation between the equipment and the · Connect the equipment into an outlet on a circuit different · Consult the dealer or an experienced radio/TV technician for
help. Any changes or modifications not expressly approved by Hewlett-Packard could void the user's authority to operate this equipment. Note Use of a shielded interface cable is required to comply with the Class B limits of Part 15 of the FCC rules. from that to which the receiver is connected. receiver.
This product also meets the FCC Class A emission standards.
Product Information 1-9
Laser Statement (Sweden/Finland)
LASERTURVALLISUUS LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT HP LaserJet(s) 4/4M, 4 Plus/4M Plus laserkirjoitin on käyttäjän kannalta turvallinen luokan 1 laserlaite. Normaalissa käytössä kirjoittimen suojakotelointi estää lasersäteen pääsyn laitteen ulkopuolelle. Kirjoittimen on hyväksynyt Suomessa laserturvallisuuden osalta Sähkötarkastuskeskus. Laitteen turvallisuusluokka on määritetty valtioneuvoston päätöksen N:o 472/1985 ja standardin EN 60825 (1991) mukaisesti. VAROITUS ! Laitteen käyttäminen muulla kuin käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle. VARNING ! Om apparaten används på annat sätt än i bruksanvisning specificerats, kan användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass 1. HUOLTO HP LaserJet (s) 4/4M, 4 Plus/4M Plus-kirjoittimen sisällä ei ole käyttäjän huollettavissa olevia kohteita. Laitteen saa avata ja huoltaa ainoastaan sen huoltamiseen koulutettu henkilö. Tällaiseksi huoltotoimenpiteeksi ei katsota väriainekasetin vaihtamista, paperiradan puhdistusta tai muita käyttäjän käsikirjassa lueteltuja, käyttäjän tehtäväksi tarkoitettuja ylläpitotoimia, jotka voidaan suorittaa ilman erikoistyökaluja. VARO !Mikäli kirjoittimen suojakotelo avataan, olet alttiina näkymättömälle lasersäteilylle laitteen ollessa toiminnassa. Älä katso säteeseen. VARNING !Om laserprinterns skyddshölje öppnas då apparaten är i funktion, utsättas användaren för osynlig laserstrålning. Betrakta ej strålen. Tiedot laitteessa käytettävän laserdiodin säteilyominaisuuksista: Aallonpituus 770-795 nm Teho 5 mW Luokan 3B laser
1-10 Product Information
Toner Safety
Note Toner may stain clothing. Skin and clothing are best cleaned by removing as much toner as possible with a dry tissue, then washing with cold water. Hot water causes toner to melt and permanently fuse into clothing.
A Material Safety Data Sheet (MSDS) for the toner cartridge used in the HP printers, is available through Hewlett-Packard by either mail or fax. Mail. To obtain a MSDS for the 92298A LaserJet Toner Imaging System through the mail, call the Customer Information Center (CIC) at 1-800-752-0900 between 6 A.M. and 5 P.M. Pacific Standard Time. Fax. To obtain a MSDS for the 92298A LaserJet Toner Imaging System by fax, call the HP FIRST number at (800) 333-1917 (U.S. and Canada) and enter document number 1512. Note To get documents from HP FIRST by fax, you must use a Group 3 (touchtone) fax machine.
Ozone Statement
These printers do not use high voltage corona wires in the electro-photographic process, and therefore generate no measurable ozone gas (O3). They use a charging roller in the toner cartridge and a charging transfer roller in the printer.
Product Information 1-11
Doing Business with HP
Technical Assistance HP ASAP 1-800-333-1917 (U.S.)
HP ASAP (Automated Support Access Program) provides free technical support information 24 hours a day, 7 days a week. The ASAP system includes HP FIRST and HP AUDIO-TIPS, both explained below. The ASAP service requires a touch-tone phone.
HP FIRST
HP FIRST (Fax Information Retrieval Support Technology) is a phone-in fax service providing technical information for HP LaserJet users as well as service personnel. Receiving a fax requires a group 3 facsimile machine or fax card. Service-related information includes:
· Service notes (HP Authorized Dealers) (password = 737842). · Application notes. · Product Data Sheets. · Material Safety Data Sheets (MSDS). · Typeface and accessory information. · Printer support software information. · Toner information. · Driver request form and Software Matrix.
HP FIRST, U.S. Call the HP ASAP system (1-800-333-1917) and follow the voice prompts to enter HP FIRST. HP FIRST, Europe Call HP FIRST at one of the following numbers: U.K., 0-800-96-02-71 Netherlands, 06-02-22-420 Belgium (Dutch), 0800-1-1906 Germany, 0130-8100-61 Switzerland (German), 155-1527 Austria, 0660-8128 For English service outside the above countries, (31) 20-681-5792
1-12 Product Information
HP AUDIO-TIPS HP AUDIO-TIPS, available within HP ASAP, is an interactive voice response system providing pre-recorded answers to the questions most frequently asked by HP LaserJet printer users. Helpful "System Maps" to the HP AUDIO-TIPS recordings are available by fax through HP FIRST.
HP CompuServe Forum
CompuServe members can download a variety of support materials including product data sheets, software application notes, and printer drivers for many popular software applications. Members may also post and reply to questions in an interactive format. To access the HP Forum, type GO HPPER at any prompt. For more information, or to join CompuServe, call 1-800-524-3388.
Customer Information Centers
For further technical assistance, service-authorized HP and dealer service personnel can contact the nearest Hewlett-Packard Customer Information Center, 1-800-752-0900 in North America.
Customer Support Center (Assist Line)
The HP Customer Support Center, (208-323-2551) is available to answer technical questions regarding setup, configuration, installation and operation of HP printers in the PC and Macintosh environments. The CSC Assist Line is available weekdays from 7 am to 6 pm Mountain Time (Wednesdays until 4 pm). Questions relating to operating systems such as MS-DOS and UNIX, your network configuration, or network operating system cannot be answered by the Center and should be referred to your authorized reseller.
Printer Drivers
To order additional drivers for your software applications, call the HP Driver Distribution Center at 1-970-339-7009.
Product Information 1-13
European Customer Support Center
The HP European Customer Support Center, located in Amsterdam, Holland, is open from 8:30 am to 6:00 pm central European time (Wednesdays until 4:00 pm). Multilingual customer support representatives can answer technical questions similar to the U.S. CSC, described on the previous page. This service is available at no charge for a period equivalent to the original HP hardware warranty period. Each time you call the HP European Customer Support Center, you will be required to provide the printer's serial number and original date of purchase. To receive a fax listing the supported languages on a country's phone number, call HP FIRST (refer to "HP FIRST," earlier in this section). You can also call the nearest HP Sales and Service office to obtain the telephone number for the Center. The Center features automated call-routing technology, so you will receive faster service if calling from a touchtone phone or tone dialer.
Other Areas
Outside of North America and Europe, contact your local HP sales office for assistance in obtaining technical support.
1-14 Product Information
2
Site Planning and Requirements
Site Requirements
The environmental specifications, listed in the Specifications section of Chapter 1, must be maintained to ensure the proper operation of this printer. Consider the following points before installing the printer:
· Install the printer in a well-ventilated area. · Install the printer on a sturdy, level surface. · Install the printer where the temperature and humidity do not
change abruptly. Do not position the printer near water sources, humidifiers, air conditioners, refrigerators, or other major appliances. Do not expose the printer to direct sunlight, dust, open flames, or ammonia fumes. If the printer is placed near a window, make sure the window has a curtain or blind to block direct sunlight. Install the printer away from walls. There must be enough space around the printer for proper access and operation (see Figure 2-1).
·
·
Site Planning and Requirements 2-1
Printer Space Requirements
Figure 2-1
Space Requirements
2-2 Site Planning and Requirements
Print Media Specifications
The complete media specifications are listed in the HP LaserJet Family Paper Specifications Guide (part no. 5961-0920), that came with this manual. Each tray has its own set of paper specifications. Do not use paper heavier than 36 pound from the MP tray (Tray 1), 28 pound from the PC tray (Tray 2), or 24 pound from the LC Tray (Tray 3).
Table 2-1
Media Paper Envelopes
Media Specifications for MP Tray (Tray 1)
Size Letter, Legal, Executive, A4 Capacity 100 sheets at 20# (75 g/m2) Weight/Thickness Range 16# to 36# (60 to 135 g/m2) 16# to 24# (60 to 90 g/m2)
COM10, 10 of any kind MONARCH, ISO DL, C5, B5 Letter, A4 Letter, A4 Approx. 75 Approx. 75
Transparencies Labels
0.0039 in. to 0.0045 in. thickness (0.099 to 0.114 mm) 0.005 in. to 0.007 in. thickness (0.127 to 0.178 mm)
Minimum Size: 3.5 in. x 6.5 in. (90 mm x 160 mm) Maximum Size: 8.5 in. x 14 in. (216 mm x 356 mm)
Table 2-2
Media Paper
Media Specifications for PC Tray (Tray 2)
Size Letter, A4 Capacity 250 sheets at 20# (75 g/m2) Weight/Thickness Range 16# to 28# (60 to 105 g/m2)
Site Planning and Requirements 2-3
Table 2-3
Media Paper
Media Specifications for Optional LC Tray (Tray 3)
Size Capacity Weight/Thickness Range 16# to 24# (60 to 90 g/m2)
Letter, A4, Executive 500 sheets at 20# (75 g/m2)
Note
Printing heavy paper stock (greater than 24 lb. (90 g/m2) from the 500-sheet Lower Cassette specifically is not supported.
Table 2-4
Media Paper
Media Specifications for Duplex Assembly (HP LaserJet 4 Plus, 4M Plus, 5, 5M, and 5N printers)
Size Letter, Legal, A4 Weight/Thickness Range 16# to 24# (60 to 90 g/m2)
2-4 Site Planning and Requirements
Adhesive Labels
Note Printing labels using the Duplex Assembly , the 500-sheet Lower Cassette (Tray 3) or the PC tray (Tray 2) specifically is not supported. Always use the MP tray (Tray 1) to print labels.
Label Construction When selecting labels, consider the quality of each component:
· Adhesives: The adhesive material should be stable at the
392° F (200° C) temperatures encountered in the printer's fusing process. None of the adhesive should be exposed between the labels. Label arrangement: If possible, use labels with no exposed areas between labels. If labels with exposed areas are used, they should be arranged on the carrier sheet (the backing) so that they cover the entire page with the exposed areas of the carrier sheet running lengthwise down the sheet. Using label stock with spaces between labels often results in labels peeling off during the printing cycle, causing serious jamming problems. Label curl: Labels must lie flat with no more than 0.5in(13mm) of curl in any direction. Poorly manufactured labels: Do not use labels with wrinkles, bubbles, or other indications of delamination.
·
· ·
Site Planning and Requirements 2-5
Overhead Transparencies
Note Printing overhead transparencies using the Duplex Assembly, the 500-sheet Lower Cassette (Tray 3) or PC tray (Tray 2) specifically is not supported.
Overhead transparencies used in HP LaserJet printers must be able to withstand the 392° F (200° C) temperature encountered in the printer's fusing process. See the HP LaserJet Family Paper Specifications Guide for more information. Caution Use only overhead transparencies recommended for use in laser printers.
Envelopes
Many kinds of envelopes can be printed with your printer. Some envelope styles perform better than others because their construction is better suited to feeding through a laser printer. Hewlett-Packard Company neither warrants nor recommends the use of a particular brand of envelope. Envelope properties are subject to change by envelope manufacturers, and Hewlett-Packard Company has no control over such changes.
2-6 Site Planning and Requirements
Envelope Construction
The following table lists the kinds of envelopes you can print in the MP Tray (Tray 1). Table 2-5 Specifications for Envelopes Item
Minimum envelope size Maximum envelope size Basis Weight Quantity
Specifications
3.5 in x 7 in (86 mm x 178 mm) 7.4 in x 10.5 in (188 mm x 267 mm) 16 to 24 pound (60 to 90 g/m2) Maximum 10 envelopes
Envelope Size
Commercial #10 (COM 10) #7 3/4 (Monarch) DL C5 B5
Dimensions
4.1 in x 9.5 in (105 mm x 241 mm) 3.8 in x 7.5 in (98 mm x 191 mm) 109 mm x 218 mm (4.3 in x 8.6 in) 163 mm x 231 mm (6.4 in x 9.1 in) 178 mm x 251 mm (7.0 in x 9.9 in)
See the HP LaserJet Family Paper Specifications Guide for more information.
Site Planning and Requirements 2-7
2-8 Site Planning and Requirements
3
Configuration
Introduction
The Configuration of the printer consists of setting hard and soft user defaults, and setting up the host computer to communicate with the printer (System Configuration). For installation instructions refer to Installation in the Getting Started Manual that is shipped with the printer. Hard defaults are the I/O Menu and Configuration Menu settings. These are set when the printer is installed and remain as configured. The soft defaults (Printing menu and PCL menu) change with the print job requirements. System Configuration includes installing printer drivers, MODE commands and updating the AUTOEXEC.BAT file. The instructions in this chapter explain how to access the printer features through the control panel, and how to set up the printer in different configurations. This chapter explains how to check the configuration settings, and how to verify that a configuration is correctly selected. Setup and configuration information for accessories is available in this chapter. This information is intended to augment and not replace the information provided with the accessories themselves. If possible, use the information provided with the accessories when installing the accessory products. Use the information that comes with the printer drivers when installing the printer. Many features of the printer are not available without the correct printer driver for the software application.
Configuration 3-1
Using The Control Panel
(See Appendix B for LaserJet 5 information.)
Figure 3-1
Control Panel Keys
The control panel (see Figure 3-1) consists of eight keys, three indicator lights, and a 16-character display panel. The three indicator lights are described in Table 3-1. Control Panel Keys There are two rows of control panel keys. The upper row keys have one function each. The lower row keys have a second level of functions which are accessed by holding down [Shift]. Note that the alternate functions [Reset], [Continue], and [-] are coded the same color as [Shift]. Table 3-2 details both plain key functions and shift-key combinations.
3-2 Configuration
Table 3-1 Indicator
Ready
Indicator Lights Mode
On: Flashing: Off: Ready to print. Processing a print job. Do not take off line or switch off. Not ready; see display for message. Ready to receive data. Going from on line to off line. Off line. Other keys can be accessed. Data still in printer buffer. Buffered data being printed. No buffered data in printer.
Description
On Line
On: Flashing: Off:
Form Feed
On: Flashing: Off:
Configuration 3-3
Table 3-2 Key
[On Line]
Control Panel Key Functions Function
Switches the printer between ON LINE (communicating with the computer or other data source) and OFF LINE (not communicating). For the printer to receive data, both the On Line and Ready indicator lights must be on. Prints any data remaining in printer's buffer. It cannot be used to send a blank sheet of paper through the printer. Selects the physical paper size loaded in the MP tray only when it is operating as a PC tray. Saves a selection in the printer's "permanent" memory. An asterisk (*) appears next to the item to indicate that it is now the default. The selection remains even if the printer is switched off or you perform a reset. If buffered data or temporary data (such as temporary downloaded typefaces) are present, [Enter] only marks the items with an asterisk (*) as the default. When you press [On Line] or [Menu], the message 10 RESET TO SAVE appears. There are three choices: [Reset] RESET MENU [On Line] Clears page buffers (See the following table.) Clears page buffers Places the printer on line without performing a reset.
[Form Feed] [MP Paper Size] [Enter]
[Shift] [Menu]
Accesses the lower labels ( [Reset], [Continue], and [-]) on the control panel. It works like the [Shift] key on your computer's keyboard. [Menu] cycles through the menu selections, returning to 00 READY at the end of the cycle unless an error, warning, or configuration problem is encountered. If an option such as PostScript or a different I/O has been added, that menu appears in the menu sequence. Continue ([Shift] + [Item]) allows the printer to resume printing after it has been placed off line due to an error condition or a device attendance request (such as 21 PRINT OVERRUN). The [Continue] key clears most error messages and places the printer back on line. It functions like the [On Line] key except: 1. Continue does not override an error condition. 2. Continue allows you to override the paper or envelope size selection regardless of what size media is in the MP tray. 3. Continue allows you to override a request to manually feed paper or an envelope; it will select paper from the next available source instead.
[Continue]
[+] or -]
[+] or [-] allows you to step (by momentarily pressing the key) or scroll (by holding down the key) through the item choices for a specific menu. [Shift] [+] (or [-]) allows you to cycle through the item choices in reverse order.
3-4 Configuration
Reset Menu
Use Reset Menu function with caution. It can result in loss of buffered page data or printer configuration data. Reset Menu is activated by holding down both [Shift] and [Menu] for up to 10 seconds until RESET=MENU* appears. Use [+] or [-] to cycle through items and [Enter] to select the item. The reset is executed by pressing [On Line].
Table 3-2
[Reset] (and Menu of Resets)
Reset Menu Functions
A reset ([Shift] + [Menu]) displays a 07 RESET, clears the printer's page buffer, removes all temporary typefaces and macros, and makes the current user-established defaults "permanent." They will be the default values until they are changed by the user. To access the Menu of Resets, hold down both [Shift] and [Menu] for about 10 seconds until RESET=MENU* appears in the display panel. Use [-] to cycle through the display choices, and [Enter] to select the option. Execute the reset by pressing [On Line]. The printer responds with a reset message for the choice selected.
The three RESET= choices are:
MENU* clears the page buffer, removes all temporary personality data such as downloaded typefaces, and resets all printing environment parameters (such as number of copies, paper size, etc.), and sets user-selected defaults (such as MP tray default configuration) to their factory defaults. Certain items, such as the display language or I/O configuration, are not reset. RESET=MENU clears only the active I/O input buffer. ACTIVE I/O clears the page buffer, removes all perishable personality data such as temporary typefaces, and clears the input and output buffers for the active I/O only. ALL I/O clears the page buffer, removes all perishable personality data such as temporary typefaces, and clears the input and output buffers for all I/Os.
* indicates factory default.
Configuration 3-5
Control Panel Menus
Figure 3-2 shows the menus and menu items available with the basic printer configuration. Not all menu items are discussed in this section. Only those items of specific interest from a service standpoint, or items new to the printers are discussed in this section. If options such as PostScript or a different I/O are installed, new menu items automatically are added at the appropriate location. For example, a PostScript Menu appears following the PCL Menu.
3-6 Configuration
Figure 3-2
Control Panel Map
Configuration 3-7
Table 3-3 Item
COPIES PAPER
Printer Menu Items Options
1* to 999 LETTER* (110V printers), LEGAL, A4* (220V printers) EXEC COM10* (110V printers), MONARCH, DL* (220V printers), C5, B5 P*, L P means portrait (vertical) and L means landscape (horizontal) orientation. Sets vertical spacing from 5 to 28 lines. Only for MP Tray. Refines print quality. Reduces amount of toner used. Allows for printing on both sides of paper. Determines orientation of page.
Explanation
Select any number from 1 to 999. Sets default image size, unless software setting overrides it.
ENVELOPES
ORIENTATION
FORM (5 to 128 lines) MANUAL FEED RET ECONOMODE (HP LJ4+only) DUPLEX (HP LJ4+ with Duplex only) BIND (HP LJ4+with Duplex only) *indicates factory default.
60* (110V printers) 64* (220V printers) OFF*, ON OFF, LIGHT, MEDIUM*, DARK OFF*, ON OFF*, ON
LONG EDGE* SHORT EDGE
3-8 Configuration
Table 3-3 Item
FONT SOURCE
PCL Menu Items Options
I* C S Mn (1-4)
Explanation
Internal fonts* Cartridge fonts Permanent soft fonts SIMM Module: n=slot number. Typefaces stored in one of the four ROM SIMM slots (M1=slot 1, for example). Number assigned to each typeface. Depends on the FONT SOURCE and FONT NUMBER selected. A unique grouping of all characters in a font.
FONT NUMBER PITCH or PT. SIZE SYM SET *indicates factory default.
0* to 999 Pitch: 10.00* Point: 12.00* ROMAN-8 Many others
Table 3-4 Item
RESOLUTION PERSONALTY
Job Menu Items Options
300 or 600* AUTO* PCL PS (Postscript) OFF, 15 MIN, 30 MIN, 1 HR, 2 HRS, 3 HRS 15* (5 to 300) AUTO*, ON
Explanation
Sets the resolution. Sets the printer language.
PWRSAVE (HP LJ4+ only) IO TIMEOUT PAGE PROTECT (HP LJ4 only) *indicates factory default.
Sets the amount of time the printer is idle before the fuser shuts down. Time in seconds that the printer waits before ending a print job. Only seen with error 21 PRINT OVERRUN.
Configuration 3-9
Table 3-5 Item
MP TRAY
Configuration Menu Items Options
FIRST* CASS MANUAL
Explanation
Paper is selected first. Operates as a PC tray. Operates as a manual feed tray. No trays are locked out. The MP tray is locked out. The PC tray is locked out. The optional Lower Cassette is locked out. Indicates a transient condition. When an error is encountered, printer goes off line until [SHIFT] + [CONTINUE] are pressed. When an error is encountered, printer goes off line for 10 secs., then comes back on line. Determines relative darkness of print. Higher numbers yield darker print but shorter toner cartridge life. May take up to 20 pages for new setting to stabilize. Printer remains on line and continues to print after the 16 TONER LOW message is displayed. Printer goes off line after the 16 TONER LOW message is displayed.
LOCK
NONE* MP PC LC and combinations ON*, JOB OFF*
CLR WARN AUTO CONT
ON
DENSITY
1, 2, 3*, 4, 5
LOW TONER
CONT*
STOP *indicates factory default.
3-10 Configuration
Table 3-6 Item
IO BUFFER
Memory Configuration Items Options
AUTO* OFF ON
Explanation
Memory is automatically determined by the printer. No memory is set aside. Size can be manually adjusted With IO BUFER ON, adjust size in increments of 10. Saves resources and extra memory and personality SIMM are installed in printer. Printer automatically determines the amount of memory to allocate to personality. No memory is allocated. Additional memory management selections appear. Increases memory for each installed personality.
IO SIZE RESRCSAVE
10K and up
AUTO* OFF ON
PCL MEM PS MENU *indicates factory default.
0K and up
Table 3-7 Item
HIGH SPEED
Parallel Menu Items Options
YES* NO
Explanation
Sets parallel interface to run at a higher data rate. Sets the parallel interface to run at a slower data rate.
ADV FNCTNS *indicates factory default.
ON* OFF
Configuration 3-11
Table 3-8 Item
SERIAL PACING
Serial Menu Items Options
RS-232* RS-422 (HP LJ 4 only) DTR/DSR* XON/XOFF
Explanation
Use the RS-422 when a longer cable is needed. Use if the computer requires hardware flow control. Use if the computer requires software flow control. Tells how fast information will be transferred from the computer to the printer. Appears when pacing is set to XON/XOFF. Printer sends XON when printer is put on line or when sufficient buffer space is available. Printer sends one XON when it can accept more data or when it is put on line. Pin 20 is high. Pin 20 is low.
BAUD RATE
9600* 300 to 57600
ROBUST XON ON* OFF
DTR POLARITY *indicates factory default.
HI* LO
Table 3-9 Item
SELF TEST CONT SELF TEST PCL TYPE LIST PCL DEMO PAGE
Test Menu Items Explanation
With SELF TEST displayed, press [ENTER] to run a self test. Prints continuous self test pages until [ON LINE] or [SHIFT] + [CONTINUE] are pressed. Prints a list of typefaces and bitmapped fonts in your printer. Prints a page that illustrates the printer features.
*indicates factory default.
3-12 Configuration
Printer Features
Some of the important features of the HP LaserJet 4, 4 Plus, and LaserJet 5 printers are described below.
Page Protection (HP LaserJet 4 only)
Note The default is PAGE PROTECT=OFF*. Unless you frequently get 21 PRINT OVERRUN messages, you may not need to set a value for page protection.
Page protection reserves additional memory for the page image process, allowing the printer to create an entire page image in memory before paper starts through the printer. The memory required for page protection is dependent upon the resolution selected: a 600-dpi page can take 4 times as much memory as a 300-dpi page. If you use page protection, set it for the size you expect to use most often. Be sure you have sufficient installed memory for the option you select. Complex graphics and PostScript applications also require more memory than is included in the standard printer configuration. Note Unlike earlier HP LaserJet printers, page protection and resolution can be set regardless of memory installed in the printer. Be aware that setting page protection ON will decrease the amount of memory available for other memory dependent features.
Configuration 3-13
Resource Saving (HP LaserJet 4 Plus and 5 only)
Resource Saving gives the printer the ability to save certain entities such as permanent soft fonts, macros, symbol sets and user-defined graphics patterns when the printer changes personalities, resolutions or page protect modes. For example, if a user switches the LaserJet 4 printer from PCL mode to PostScript mode, all PCL soft fonts macros are lost. The HP LaserJet 4 Plus/4M Plus printer would not clear these entities from memory. When the user switches back to PCL from PostScript all of the PCL entities would still be resident in the HP LaserJet 4 Plus/4M Plus printer. Resource Saving can only be accessed when the printer has the PostScript language installed and a minimum memory configuration of 7 MB. If the printer has a duplexer option, the minimum amount of memory necessary to access Resource Saving is 13 MB. The Resource Saving configuration is located in the Memory Configuration Menu. Resource Saving can be set for three modes, AUTO (default), ON, and OFF. Auto configuration sets the Resource Saving for PCL and Postscript to a minimum value (400 KBytes) for each personality. Setting Resource Saving to ON allows the user to determine how much printer memory will be used for Resource Saving for the PCL personality and the Postscript personality. The memory can be allocated in 100 KBytes increments. For example, if the user sets the Resource Saving memory size to 200 KBytes, a total of 400 KBytes of memory will be assigned to Resource Saving. 200 KBytes of memory will be used for Postscript Resource Saving and 200 KBytes of memory will be used for PCL Resource Saving. Turning Resource Saving OFF disables the Resource Saving function and no memory is allocated to Resource Saving.
3-14 Configuration
I/O Buffering (HP LaserJet 4 Plus and 5 only)
I/O buffering allows the user to allocate printer memory to hold the job while it prints, freeing up the host system sooner, like a print spooler. The standard printer has approximately 10 KBytes of memory allocated to I/O buffering and an additional 100 KBytes of memory is assigned to I/O buffering for each 1 MByte of memory added to the printer. If the printer has a minimum of 6 MBytes of memory installed (12 MBytes of memory for a printer with a duplex option), the I/O buffer size can also be adjusted from the control panel. Three settings exist for the I/O buffer; AUTO (default), ON, and OFF. AUTO sets the printer's I/O buffer to a minimum value that is determined by the total amount of memory that is resident in the printer. Setting I/O buffering to ON allows the user to set the I/O buffer size from the front panel. Setting the I/O buffering to OFF disables I/O buffering . Note When you change the I/O buffer setting all downloaded resources are deleted.
Configuration 3-15
EconoMode (HP LaserJet 4 Plus and 5 only)
The EconoMode setting uses approximately 50% less toner than standard mode printing by reducing dot density. EconoMode, which can also be thought of as "draft mode," is user selectable via a front panel key, a Printer Job Language (PJL) sequence using HP Explorer's Remote Control Panel or through application software. The default setting is OFF.
EconoMode, Medium Density
Normal Mode, Medium Density
Note
EconoMode does not affect print speed or memory usage.
Resolution Enhancement (REt)
The printer Formatter PCA contains circuitry for Resolution Enhancement technology (REt), which modifies the standard video dot data on its way to the DC Controller to produce "smoothed" black-to-white boundaries. REt is user-adjustable from the front control panel, HP Explorer's Remote Control Panel (Print Quality Category) or from some software applications. Available settings are Light, Medium, Dark or Off. The default setting is Medium. Note REt settings sent from software or printer drivers override any control panel settings.
3-16 Configuration
Memory Enhancement technology (MEt) (HP LaserJet 4 Plus and 5 only)
HP Memory Enhancement technology (MEt) effectively doubles the printer's standard memory through a variety of font and data compression methods. MEt also automatically compresses fonts for desktop publishing applications. When printing graphics, MEt analyzes each page as it is being printed and automatically applies a variety of methods to print the complete page at the correct resolution. Two of these methods, Image Adapt and Page Protect, are user-selectable through HP Explorer's Remote Control Panel (Printer Memory Category). Note MEt is only available in PCL mode; it is not functional when printing in PostScript mode.
Density
Print density is a measure of the darkness of print on the page. The factory default setting is 3, but you can experiment with different settings to find the best setting for your job. The lower numbers lighten the print, the higher numbers darken the print. (1 = low, 5 = high). Print density can be affected by resolution enhancement, which can be set for dark, medium, or light values. Note When you set the density to a higher number, toner is used at a faster rate, reducing toner cartridge life.
To adjust print density: Press [On Line] to take the printer off line. Press [Menu] until CONFIG MENU appears in the display. Press [Item] until DENSITY appears in the display. Press [+] or [-] to select the desired setting. Press [Enter] to save the selection. An asterisk (*) appears to indicate that your selection was saved. 7 Press [On Line] to return the printer to active status. 8 Print approximately 20 pages to allow the new density setting to stabilize.
1 2 3 4 5 6
Configuration 3-17
Network Security
The HP LaserJet 4 Plus and 5 printers allow the System Administrator to lock out other user's ability to change most printer control panel settings. This is done by setting a password and turning LOCK on. The message MENU LOCKED will appear when a user tries to change the printer control panel settings. Note If you forget your password, you can perform a "Cold Reset" by holding down the [On Line] key (Go on LJ 5) while turning the printer on.
There are four ways to implement printer security:
1 HP Explorer software's Remote Control Panel for DOS users,
if you are directly connected to the printer through its parallel port. 2 HP LaserJet Utility for Macintosh users. 3 JetAdmin for Novell networks. 4 PJL escape sequence sent from any ASCII editor. Remote Control Panel (DOS) 1 Select OPTIONS from the Remote Control Panel screen. 2 Select SECURITY from the OPTIONS menu. 3 Select Use Password from the Printer Passwords box. 4 Type in the password and confirm it in the New Password box. Numeric password values can be set from 0 to 65535. (If you already have a password, go the the next step; you will be prompted for your password.) 5 To lock the printer's control panel, select ON in the Control Panel Lock box. HP LaserJet Utility (Macintosh) 1 Select the HP LaserJet Utility icon in the HP LaserJet folder on your hard drive. 2 If necessary, double click on the Select Printer button to select the the appropriate printer. 3 Under the Extras menu, select Control Panel Lock. 4 In the Control Panel Lock: HP LaserJet 4M Plus or 5M screen, click on the On (Locked) box, then click the OK button. You will be prompted to enter a password if the password has been set. If a password has not been set, go to the next step.
3-18 Configuration
5 Under the Extras menu, select Set Printer Password. On
the Printer Security screen, enter the new password (numeric values can be set from 0 to 65535), and click on the OK button.
HP JetAdmin Utility (Novell Networks) 1 Run JETADMIN. 2 Select the printer you want to configure. It is listed under its "JetDirect Interface Name" which appears on the self test page/configuration plot. 3 Select Configuration.... The Printer I/O Configuration screen appears. 4 Select Advance.... The Advance Settings screen appears. 5 Select Lock Printer Control Panel.... 6 Click on Select... (the Advanced: Printer Security screen appears), then click on the ON button. 7 Click th