EXP Computer C4077-90960 User Manual

HP LaserJet 5Si Family Printers Service Manual

English

Service Manual

HP LaserJet 5Si (C3166A) HP LaserJet 5Si MX (C3167A) HP LaserJet 5Si NX (C3950A) HP LaserJet 5Si HM (C3124A) HP LaserJet 5Si Mopier (C4076A/C4077A/C4176A)

Publication number c4077-90960

First edition, September 1997

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: The names of major printer parts and assemblies are Capitalized.

Color is used to emphasize items which are important to the material under

discussion. Bold is used for emphasis, particularly in situations where italic type would

be confusing. Italic type is used to indicate related documents or emphasis.

Note

Caution

WARNING!

Notes contain important information set off from the text.

Caution messages alert you to the possibility of damage to equipment or loss of data.

Warning messages alert you to the possibility of personal injury.

Chapter Descriptions

1 Product Information

Contains printer features and product overview, tray capacities and sizes, media specifications, service approach, and how to get technical assistance.

2 Site Requirements

Contains space and environmental requirements.

3 Operating Overview

Contains details about control panel menus, restoring factory defaults, and resetting and testing the printer.

4 Maintenance and Adjustments

Contains cleaning and preventive maintenance information, and adjustment procedures for Tray 2, Tray 3, and Tray 4.

5 Functional Overview

Contains block diagrams and basic theory of operation for the printer systems, paper paths, and paper handling accessories.

6 Removal and Replacement

Contains step-by-step procedures for replacing field replaceable units (FRUs) in the printer, 2000-Sheet Input Unit, Multi-Bin Mailbox, and the Mailbox with Stapler.

7 Troubleshooting

Contains a preliminary troubleshooting table, a table with descriptions and recommended actions for all control panel messages, image defect samples, and troubleshooting checks and tools.

8 Parts and Diagrams

Contains exploded view drawings and part number listings for all replaceable parts in the printer, 2000-Sheet Input Unit, Multi-Bin Mailbox, and Mailbox with Stapler.

A Parts Index

Contains two replaceable parts tables: one sorted alphabetically by part name, and one sorted numerically by part number. Both tables are cross referenced to the diagrams in Chapter 8.

B I\O Information

Contains basic cabling and configuration information for connecting the printer to supported networks.

C Regulatory Information

Contains required safety and compliance statements.

Subject Index

Contains an alphabetical, cross referenced listing of information found in the main body of the manual.

iii

List of Figures

Figure 1-1 Sample Model and Serial Number Labels . . . . . . . . . . 1-7

Figure 1-2 HP LaserJet 5Si/5Si MX/NX and Mopier Engine - Front

and Right Side View with Tray 1 Open . . . . . . . . . . . 1-14

Figure 1-3 HP LaserJet 5Si Mopier - Front and Right Side View

with Tray 1 Open . . . . . . . . . . . . . . . . . . . . . . 1-15

Figure 1-4 Rear and Left Side View . . . . . . . . . . . . . . . . . . . 1-16

Figure 1-5 HP LaserJet 5Si/5Si MX/NX Optional Paper

Handling Accessories . . . . . . . . . . . . . . . . . . . . . 1-17

Figure 1-6 Sample 5% Page Coverage . . . . . . . . . . . . . . . . . . 1-22

Figure 2-1 Printer Space Requirements . . . . . . . . . . . . . . . . . 2-4

Figure 3-1 Control Panel Layout . . . . . . . . . . . . . . . . . . . . 3-3

Figure 3-2 PCL Configuration Page . . . . . . . . . . . . . . . . . . . 3-26

Figure 3-3 PCL Menu Map Page . . . . . . . . . . . . . . . . . . . . . 3-28

Figure 4-1 Image Area Margins . . . . . . . . . . . . . . . . . . . . . 4-7

Figure 4-2 Tray 2/3 Position Adjustment . . . . . . . . . . . . . . . . 4-8

Figure 4-3 Tray 4 Position Adjustment . . . . . . . . . . . . . . . . . 4-9

Figure 5-1 Printer Functional Block Diagram . . . . . . . . . . . . . 5-4

Figure 5-2 Low Voltage Power Distribution System . . . . . . . . . . 5-5

Figure 5-3 Low Voltage Power Supply . . . . . . . . . . . . . . . . . 5-6

Figure 5-4 High Voltage Power Supply contacts . . . . . . . . . . . . 5-7

Figure 5-5 Normal Mode vs EconoMode . . . . . . . . . . . . . . . . . 5-9

Figure 5-6 Image Formation Block Diagram . . . . . . . . . . . . . . 5-12

Figure 5-7 Photosensitive Drum . . . . . . . . . . . . . . . . . . . . . 5-13

Figure 5-8 Drum Cleaning . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Figure 5-9 Primary Charging Roller . . . . . . . . . . . . . . . . . . . 5-15

Figure 5-10 Image Writing . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Figure 5-11 Image Development . . . . . . . . . . . . . . . . . . . . . 5-17

Figure 5-12 Image Transferring and Media Separation . . . . . . . . . 5-18

Figure 5-13 Image Fusing . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Figure 5-14 Printer Paper Paths . . . . . . . . . . . . . . . . . . . . . 5-20

Figure 5-15 Printer Sensors, Solenoids, Clutches, Motors, and Fans . . 5-22

Figure 5-16 2000-Sheet Input Unit Paper Path . . . . . . . . . . . . . 5-23

Figure 5-17 2000-Sheet Input Unit Sensors, Switches, Clutches,

and Motors . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25

Figure 5-18 Multi-Bin Mailbox Paper Paths . . . . . . . . . . . . . . . 5-28

Figure 5-19 Multi-Bin Mailbox/Mialbox With Stapler Sensors

and Motors . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

Figure 5-20 Stapling Unit Paper Paths . . . . . . . . . . . . . . . . . . 5-33

Figure 5-21 Stapler Sensors and Motors . . . . . . . . . . . . . . . . . 5-35

Figure 5-22 General Timing Diagram (1 of 2) for LJ 5Si/5Si MX . . . . 5-41

Figure 5-23 General Timing Diagram (2 of 2) for LJ 5Si/5Si MX . . . . 5-42

Figure 6-1 Phillips vs. Posidriv Screwdrivers . . . . . . . . . . . . . . 6-6

Figure 6-2 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . 6-17

Figure 6-3 AC Access Cover . . . . . . . . . . . . . . . . . . . . . . . 6-18

Figure 6-4 Back Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

Figure 6-5 Front Cover (1 of 2) . . . . . . . . . . . . . . . . . . . . . . 6-21

Figure 6-6 Front Cover (2 of 2) . . . . . . . . . . . . . . . . . . . . . . 6-21

Figure 6-7 Left Lower Cover . . . . . . . . . . . . . . . . . . . . . . . 6-22

Figure 6-8 Top Cover (1 of 2) . . . . . . . . . . . . . . . . . . . . . . . 6-24

Figure 6-9 Top Cover (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . 6-24

Figure 6-10 Delivery Unit (1 of 2) . . . . . . . . . . . . . . . . . . . . . 6-26

Figure 6-11 Delivery Unit (2 of 2) . . . . . . . . . . . . . . . . . . . . . 6-26

Figure 6-12 Diverter Assembly . . . . . . . . . . . . . . . . . . . . . . 6-27

Figure 6-13 Diverter Door Assembly . . . . . . . . . . . . . . . . . . . 6-28

Figure 6-14 Right Lower Door Assembly (1 of 3) . . . . . . . . . . . . . 6-29

Figure 6-15 Right Lower Door Assembly (2 of 3) . . . . . . . . . . . . . 6-30

Figure 6-16 Right Lower Door Assembly (3 of 3) . . . . . . . . . . . . . 6-30

Figure 6-17 Fan 1, Laser/Scanner (1 of 2) . . . . . . . . . . . . . . . . . 6-31

Figure 6-18 Fan 1, Laser/Scanner (2 of 2) . . . . . . . . . . . . . . . . . 6-32

Figure 6-19 Fan 2, LVPS . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33

Figure 6-20 Fan 3, Formatter . . . . . . . . . . . . . . . . . . . . . . . 6-34

Figure 6-21 Fan 4, Delivery Unit . . . . . . . . . . . . . . . . . . . . . 6-35

Figure 6-22 Feeder Assembly (1 of 2) . . . . . . . . . . . . . . . . . . . 6-37

Figure 6-23 Feeder Assembly (2 of 2) . . . . . . . . . . . . . . . . . . . 6-37

Figure 6-24 Formatter Assembly . . . . . . . . . . . . . . . . . . . . . 6-38

Figure 6-25 Fusing Assembly . . . . . . . . . . . . . . . . . . . . . . . 6-40

Figure 6-26 Laser/Scanner Assembly . . . . . . . . . . . . . . . . . . . 6-41

Figure 6-27 Main Gear Assembly (1 of 3) . . . . . . . . . . . . . . . . . 6-43

Figure 6-28 Main Gear Assembly (2 of 3) . . . . . . . . . . . . . . . . . 6-43

Figure 6-29 Main Gear Assembly (3 of 3) . . . . . . . . . . . . . . . . . 6-44

Figure 6-30 Main Motor . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45

Figure 6-31 Paper Input Unit . . . . . . . . . . . . . . . . . . . . . . . 6-46

Figure 6-32 DC Controller PCA . . . . . . . . . . . . . . . . . . . . . . 6-47

Figure 6-33 Output Paper Sensor PCA (1 of 4) . . . . . . . . . . . . . . 6-49

Figure 6-34 Output Paper Sensor PCA (2 of 4) . . . . . . . . . . . . . . 6-49

Figure 6-35 Output Paper Sensor PCA (3 of 4) . . . . . . . . . . . . . . 6-50

Figure 6-36 Output Paper Sensor PCA (4 of 4) . . . . . . . . . . . . . . 6-50

Figure 6-37 Paper Size PCA (1 of 3) . . . . . . . . . . . . . . . . . . . . 6-51

Figure 6-38 Paper Size PCA (2 of 3) . . . . . . . . . . . . . . . . . . . . 6-52

Figure 6-39 Paper Size PCA (3 of 3) . . . . . . . . . . . . . . . . . . . . 6-52

Figure 6-40 High Voltage Power Supply . . . . . . . . . . . . . . . . . 6-53

Figure 6-41 Low Voltage Power Supply . . . . . . . . . . . . . . . . . . 6-54

Figure 6-42 Registration Assembly (1 of 3) . . . . . . . . . . . . . . . . 6-56

Figure 6-43 Registration Assembly (2 of 3) . . . . . . . . . . . . . . . . 6-56

Figure 6-44 Registration Assembly (3 of 3) . . . . . . . . . . . . . . . . 6-57

Figure 6-45 Tray 1 Feed Roller . . . . . . . . . . . . . . . . . . . . . . 6-58

Figure 6-46 Tray 1 Separation Pad . . . . . . . . . . . . . . . . . . . . 6-59

Figure 6-47 Tray 2 and 3, Pickup, Feed, and Separation Rollers . . . . 6-60

Figure 6-48 Paper Input Unit Sensor (PS2) . . . . . . . . . . . . . . . . 6-61

Figure 6-49 Registration Sensor (PS1) . . . . . . . . . . . . . . . . . . 6-62

Figure 6-50 Face-Up Solenoid Assembly, SL3 . . . . . . . . . . . . . . 6-63

Figure 6-51 Transfer Roller Assembly . . . . . . . . . . . . . . . . . . 6-64

Figure 6-52 Tray 1 Assembly . . . . . . . . . . . . . . . . . . . . . . . 6-65

Figure 6-53 Tray 4, Back Cover . . . . . . . . . . . . . . . . . . . . . . 6-67

Figure 6-54 Tray 4, Left Cover . . . . . . . . . . . . . . . . . . . . . . 6-68

Figure 6-55 Tray 4, Right Cover . . . . . . . . . . . . . . . . . . . . . 6-69

Figure 6-56 Tray 4, Main Drive Assembly . . . . . . . . . . . . . . . . 6-70

Figure 6-57 Tray 4, Paper Tray . . . . . . . . . . . . . . . . . . . . . . 6-71

Figure 6-58 Tray 4, PCA Controller . . . . . . . . . . . . . . . . . . . . 6-72

Figure 6-59 Tray 4, Pickup Assembly . . . . . . . . . . . . . . . . . . . 6-73

Figure 6-60 Tray 4, Pickup Assembly Photosensors . . . . . . . . . . . 6-74

Figure 6-61 Tray 4, Power Supply . . . . . . . . . . . . . . . . . . . . 6-75

Figure 6-62 Tray 4 Rollers: Pickup, Feed, and Separation . . . . . . . 6-76

Figure 6-63 Tray 4, Switch Assemblies . . . . . . . . . . . . . . . . . . 6-77

Figure 6-64 Tray 4, Transfer Assembly . . . . . . . . . . . . . . . . . . 6-79

Figure 6-65 Multi-Bin MailBox/Mailbox with Stapler Covers . . . . . . 6-80

Figure 6-66 MBM/MwS, Delivery Head Ribbon Cable . . . . . . . . . . 6-81

Figure 6-67 MBM/MwS, Delivery Head, Mounting Screws . . . . . . . 6-82

Figure 6-68 MBM/MwS, Delivery Head, Pulley Detail . . . . . . . . . 6-82

Figure 6-69 MBM/MwS, Flipper Assembly Connector . . . . . . . . . . 6-83

Figure 6-70 MBM/MwS, Flipper Assembly Mounting Screws . . . . . . 6-84

Figure 6-71 MBM/MwS, Flipper Assembly Ground Wire . . . . . . . . 6-84

Figure 6-72 MBM/MwS, Input Paper Guide . . . . . . . . . . . . . . . 6-85

Figure 6-73 MBM/MwS, Interlock Switch . . . . . . . . . . . . . . . . 6-86

Figure 6-74 MBM/MwS, Jam Access Door Springs . . . . . . . . . . . 6-88

Figure 6-75 MBM/MwS, Jam Access Door E-Clip . . . . . . . . . . . . 6-88

Figure 6-76 MBM/MwS, Jam Access Door String Connection . . . . . . 6-89

Figure 6-77 MBM/MwS, Elevator Pulley Tension Spring . . . . . . . . 6-91

Figure 6-78 MBM/MwS, Pulley Housing Release . . . . . . . . . . . . 6-91

Figure 6-79 MBM/MwS, Metallic Tape Retaining Pin . . . . . . . . . . 6-93

Figure 6-80 MBM/MwS, Metallic Tape Release . . . . . . . . . . . . . 6-93

Figure 6-81 MBM/MwS, Metallic Tape Housing . . . . . . . . . . . . . 6-94

Figure 6-82 MBM/MwS, Delivery Head Motor . . . . . . . . . . . . . . 6-95

Figure 6-83 MBM/MwS, Transport Belt Motor Screws . . . . . . . . . 6-96

Figure 6-84 MBM/MwS, Transport Belt Drive Gear . . . . . . . . . . . 6-97

Figure 6-85 MBM/MwS, Transport Belt Encoder . . . . . . . . . . . . 6-97

Figure 6-86 MBM/MwS, Bin Removal . . . . . . . . . . . . . . . . . . 6-98

Figure 6-87 MBM/MwS, PCA Removal . . . . . . . . . . . . . . . . . . 6-99

Figure 6-88 MBM/MwS, Anti-Curl String Lower Connection . . . . . 6-100

Figure 6-89 MBM/MwS, Anti-Curl String Upper Connection . . . . . 6-101

Figure 6-90 MBM/MwS, Anti-Curl String Middle Connection . . . . 6-101

Figure 6-91 Mailbox with Stapler, Stapler Removal . . . . . . . . . . 6-102

Figure 6-92 Mailbox with Stapler, Stapler Removal . . . . . . . . . . 6-103

Figure 6-93 Mailbox with Stapler, Stapler Removal . . . . . . . . . . 6-104

Figure 6-94 Mailbox with Stapler, Stapler Removal . . . . . . . . . . 6-105

Figure 6-95 Mailbox with Stapler, Stapler Removal . . . . . . . . . . 6-106

Figure 6-96 Mailbox with Stapler, Stapler Removal . . . . . . . . . . 6-106

Figure 6-97 Mailbox with Stapler, Stapler Removal . . . . . . . . . . 6-107

Figure 6-98 Mailbox with Stapler, Stapler Removal . . . . . . . . . . 6-108

Figure 6-99 Mailbox with Stapler, Stapler Removal . . . . . . . . . . 6-109

Figure 7-1 HP LaserJet 5Si / 5Si MX / 5Si Mopier

Troubleshooting Process . . . . . . . . . . . . . . . . . . . 7-4

Figure 7-2 HP LaserJet 5Si / 5Si MX / 5Si Mopier

Troubleshooting Process . . . . . . . . . . . . . . . . . . . 7-5

Figure 7-3 Fan Location and Airflow . . . . . . . . . . . . . . . . . . 7-7

Figure 7-4 Engine Test Button . . . . . . . . . . . . . . . . . . . . . . 7-8

Figure 7-5 Configuration Page Example . . . . . . . . . . . . . . . . . 7-12

Figure 7-6 Menu Page Example . . . . . . . . . . . . . . . . . . . . . 7-13

Figure 7-7 Communications Link (C-Link) Cables, Supported

Daisy Chain Connections . . . . . . . . . . . . . . . . . . . 7-14

Figure 7-8 Error Log Page . . . . . . . . . . . . . . . . . . . . . . . . 7-18

Figure 7-9 MIO Block on Configuration Page . . . . . . . . . . . . . . 7-19

Figure 7-10 Paper Path Test Source and Output Selection . . . . . . . 7-22

Figure 7-11 Clearing Staple Jams . . . . . . . . . . . . . . . . . . . . . 7-25

Figure 7-12 Scanbar and MBM Interlock Switch (SW1) . . . . . . . . . 7-25

Figure 7-13 High-Voltage Power Supply Contacts . . . . . . . . . . . . 7-27

Figure 7-14 Tray 2 and Tray 3 (2) Paper Out Flags . . . . . . . . . . . 7-33

Figure 7-15 Vertical Transfer Door Closed Sensor (PS35) . . . . . . . . 7-33

Figure 7-16 Sensor Flag Locations Along the Paper Path . . . . . . . . 7-36

Figure 7-17 Flipper Assembly and Paper Sensor Flags

(Multi-Bin Mailbox) . . . . . . . . . . . . . . . . . . . . . . 7-43

Figure 7-18 Paper Sensor Exit . . . . . . . . . . . . . . . . . . . . . . . 7-43

Figure 7-19 Mailbox Motor and Encoder Disk (callout 1) . . . . . . . . 7-45

Figure 7-20 Stapler Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 7-45

Figure 7-21 Delivery Head Exit Roller . . . . . . . . . . . . . . . . . . 7-57

Figure 7-22 Multi-Bin Mailbox . . . . . . . . . . . . . . . . . . . . . . 7-57

Figure 7-23 Tray 4 Cavity . . . . . . . . . . . . . . . . . . . . . . . . . 7-60

Figure 7-24 Tray 4 Lift Cables . . . . . . . . . . . . . . . . . . . . . . . 7-60

Figure 7-25 Repetitive Defect Ruler . . . . . . . . . . . . . . . . . . . . 7-73

Figure 7-26 High Voltage Power Supply Contacts . . . . . . . . . . . . 7-76

Figure 7-27 Paper Path Jam Locations . . . . . . . . . . . . . . . . . . 7-78

Figure 7-28 Printer Sensors and Switches (Print Engine Only) . . . . . 7-87

Figure 7-29 Printer Motor, Clutches, and Solenoids . . . . . . . . . . . 7-88

Figure 7-30 DC Controller Inputs and Outputs (1 of 5) . . . . . . . . . 7-89

Figure 7-31 DC Controller Inputs and Outputs (2 of 5) . . . . . . . . . 7-90

Figure 7-32 DC Controller Inputs and Outputs (3 of 5) . . . . . . . . . 7-91

Figure 7-33 DC Controller Inputs and Outputs (4 of 5) . . . . . . . . . 7-92

Figure 7-34 DC Controller Inputs and Outputs (5 of 5) . . . . . . . . . 7-93

Figure 7-35 Printer Main Wiring Diagram . . . . . . . . . . . . . . . . 7-94

Figure 7-36 2000-Sheet Input Unit Controller PCA Inputs . . . . . . . 7-95

Figure 7-37 2000-Sheet Input Unit Controller PCA Outputs . . . . . . 7-96

Figure 7-38 2000-Sheet input Unit Main Wiring Diagram . . . . . . . . 7-97

Figure 7-39 Multi-Bin Mailbox Main Wiring Diagram . . . . . . . . . . 7-98

Figure 7-40 Stapling Unit Controller PCA Main Wiring Diagram . . . 7-99 Figure 8-1a LJ 5Si Family Printer and Paper Handling Components . . 8-6 Figure 8-1b LJ 5Si Mopier Family and Paper Handling Components . . 8-7

Figure 8-2 Printer Covers and Doors . . . . . . . . . . . . . . . . . . 8-10

vii

Figure 8-3 Printer Internal Components (1 of 4) . . . . . . . . . . . . 8-12

Figure 8-4 Printer Internal Components (2 of 4) . . . . . . . . . . . . 8-14

Figure 8-5 Printer Internal Components (3 of 4) . . . . . . . . . . . . 8-16

Figure 8-6 Printer Internal Components (4 of 4) . . . . . . . . . . . . 8-18

Figure 8-7 2000-Sheet Input Unit Internal Components . . . . . . . . 8-20

Figure 8-8 2000-Sheet Input Unit Internal Components . . . . . . . . 8-22

Figure 8-9 Multi-Bin Mailbox/Mailbox with Stapler

Components (1 of 3) . . . . . . . . . . . . . . . . . . . . . 8-24

Figure 8-10 Multi-Bin Mailbox/Mailbox with Stapler

Components (2 of 3) . . . . . . . . . . . . . . . . . . . . . 8-26

Figure 8-11 Multi-Bin Mailbox/Mailbox with Stapler

Components (3 of 3) . . . . . . . . . . . . . . . . . . . . . 8-28

Figure 8-12 Stapling Unit Internal Components . . . . . . . . . . . . . 8-30

Figure B-1 Parallel Cable Pin Assignments (C2951A) . . . . . . . . . B-2

Figure B-2 Connecting to the END of a LocalTalk Network . . . . . . B-3

Figure B-3 Connecting to the MIDDLE of a LocalTalk Network (1 of 2) B-4 Figure B-4 Connecting to the MIDDLE of a LocalTalk Network (2 of 2) B-4

Figure B-5 I/O Connector Locations . . . . . . . . . . . . . . . . . . . B-5

Figure C-1 VCCI Statement (Japan) . . . . . . . . . . . . . . . . . . . C-4

viii

List of Tables

Table 1-1 Printer Features . . . . . . . . . . . . . . . . . . . . . . . 1-3

Table 1-2 Tray 1 Media Guidelines . . . . . . . . . . . . . . . . . . . 1-4

Table 1-3 Tray 2 Media Guidelines . . . . . . . . . . . . . . . . . . . 1-5

Table 1-4 Tray 3 Media Guidelines . . . . . . . . . . . . . . . . . . . 1-6

Table 1-5 Tray 4 Media Guidelines . . . . . . . . . . . . . . . . . . . 1-6

Table 1-6 Printer Dimensions . . . . . . . . . . . . . . . . . . . . . . 1-8

Table 1-7 Electrical Specifications . . . . . . . . . . . . . . . . . . . 1-9

Table 1-8 Acoustic Emissions . . . . . . . . . . . . . . . . . . . . . . 1-10

Table 1-9 Accessories and Options . . . . . . . . . . . . . . . . . . . 1-18

Table 1-10 Minimum Memory Requirements . . . . . . . . . . . . . . 1-20

Table 1-11 Related Documentation . . . . . . . . . . . . . . . . . . . . 1-24

Table 2-1 Printer and Toner Cartridge Environmental Conditions . . 2-4

Table 3-1 Control Panel Keys . . . . . . . . . . . . . . . . . . . . . . 3-3

Table 3-2 Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Table 3-3 Factory Default Settings . . . . . . . . . . . . . . . . . . . 3-7

Table 3-4 Initial Fuser Mode Recommendation . . . . . . . . . . . . 3-9

Table 3-5 Control Panel Menu Map . . . . . . . . . . . . . . . . . . . 3-11

Table 3-6 Tray Menu Items . . . . . . . . . . . . . . . . . . . . . . . 3-13

Table 3-7 Job Control Menu Items . . . . . . . . . . . . . . . . . . . 3-12

Table 3-8 Test Menu Items . . . . . . . . . . . . . . . . . . . . . . . 3-14

Table 3-9 Configuration Menu Items . . . . . . . . . . . . . . . . . . 3-16

Table 3-10 Print Quality Menu Items . . . . . . . . . . . . . . . . . . 3-17

Table 3-11 PostScript Menu Items . . . . . . . . . . . . . . . . . . . . 3-17

Table 3-12 PCL Menu Items . . . . . . . . . . . . . . . . . . . . . . . 3-18

Table 3-13 I/O Menu Items . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Table 3-14 MIO 1 and 2 Menu Items . . . . . . . . . . . . . . . . . . . 3-20

Table 3-15 Service Mode Menu Items . . . . . . . . . . . . . . . . . . 3-22

Table 3-16 Key to Figure 3-2 . . . . . . . . . . . . . . . . . . . . . . . 3-27

Table 3-17 Key to Figure 3-3 . . . . . . . . . . . . . . . . . . . . . . . 3-29

Table 4-1 Cleaning the Printer . . . . . . . . . . . . . . . . . . . . . 4-5

Table 5-1 Printer Sensors, Solenoids, Clutches, Motors, and Fans . . 5-21 Table 5-2 2000-Sheet Input Unit Sensors, Switches,

Clutches, and Motors . . . . . . . . . . . . . . . . . . . . . 5-24

Table 5-3 2000-Sheet Input Unit Paper Quantity Switches . . . . . . 5-26

Table 5-4 2000-Sheet Input Unit Paper Size Switches . . . . . . . . . 5-27

Table 5-5 MBM/MwS Sensors, Switches, and Motors . . . . . . . . . 5-29

Table 5-6 Stapling Unit Sensors, Switches, and Motors . . . . . . . . 5-34

Table 5-7 Major Assemblies and Subassemblies of the Stapler . . . . 5-36

Table 5-8 Paper Size Switches . . . . . . . . . . . . . . . . . . . . . 5-38

Table 5-9 Printer Timing . . . . . . . . . . . . . . . . . . . . . . . . 5-40

Table 6-1 Hardware Table . . . . . . . . . . . . . . . . . . . . . . . . 6-15

Table 7-1 Power-On . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Table 7-2 Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

Table 7-3 Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11

Table 7-4 Image Quality . . . . . . . . . . . . . . . . . . . . . . . . 7-15

Table 7-5 Printer Control Panel Messages . . . . . . . . . . . . . . . 7-24

Table 7-6 Blank (White) page . . . . . . . . . . . . . . . . . . . . . . 7-64

Table 7-7 Black Page . . . . . . . . . . . . . . . . . . . . . . . . . . 7-65

Table 7-8 Fading Print . . . . . . . . . . . . . . . . . . . . . . . . . 7-66

Table 7-9 Dropout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-67

Table 7-10 Black Lines (parallel or perpendicular to path) . . . . . . . 7-67

Table 7-11 Toner Smear . . . . . . . . . . . . . . . . . . . . . . . . . 7-68

Table 7-12 Background Scatter (or Leading Edge Halo) . . . . . . . . 7-68

Table 7-13 Repetitive Defects . . . . . . . . . . . . . . . . . . . . . . 7-69

Table 7-14 Line at Edge of Paper . . . . . . . . . . . . . . . . . . . . 7-69

Table 7-15 Improperly Formed Characters, Character Voids . . . . . 7-70

Table 7-16 Faulty Registration . . . . . . . . . . . . . . . . . . . . . 7-70

Table 7-17 Image Skew . . . . . . . . . . . . . . . . . . . . . . . . . . 7-71

Table 7-18 Bubble Print . . . . . . . . . . . . . . . . . . . . . . . . . 7-71

Table 7-19 White Stripes (parallel to path) . . . . . . . . . . . . . . . 7-71

Table 7-20 Partial Blank Page . . . . . . . . . . . . . . . . . . . . . . 7-72

Table 7-21 Compressed Print . . . . . . . . . . . . . . . . . . . . . . 7-72

Table 7-22 Blank Portion in the Middle of the Page

(Tray 4 Input Only) . . . . . . . . . . . . . . . . . . . . . . 7-72

Table 7-23 Paper Curl . . . . . . . . . . . . . . . . . . . . . . . . . . 7-85

Table 8-1 Printer and Paper Handling Components . . . . . . . . . . 8-8

Table 8-2 Printer Covers and Doors . . . . . . . . . . . . . . . . . . 8-11

Table 8-3 Printer Internal Components (1 of 4) . . . . . . . . . . . . 8-13

Table 8-4 Printer Internal Components (2 of 4) . . . . . . . . . . . . 8-15

Table 8-5 Printer Internal Components (3 of 4) . . . . . . . . . . . . 8-17

Table 8-6 Printer Internal Components (4 of 4) . . . . . . . . . . . . 8-19

Table 8-7 2000-Sheet Input Unit Internal Components . . . . . . . . 8-21

Table 8-8 2000-Sheet Input Unit Internal Components . . . . . . . . 8-23

Table 8-9 MBM/MwS Components (1 of 3) . . . . . . . . . . . . . . . 8-25

Table 8-10 MBM/MwS Components (2 of 3) . . . . . . . . . . . . . . . 8-27

Table 8-11 MBM/MwS Components (3 of 3) . . . . . . . . . . . . . . . 8-29

Table 8-12 Stapling Unit Internal Components . . . . . . . . . . . . . 8-31

Table A-1 Alphabetical Parts List . . . . . . . . . . . . . . . . . . . A-2

Table A-2 Numerical Parts Index . . . . . . . . . . . . . . . . . . . . A-11

Table B-1 Novell NetWare Frame Types on an Ethernet Card . . . . B-7

Product Information

Chapter Contents

Printer Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Paper Capacities and Sizes . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Tray 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Tray 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Tray 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Tray 4 (2000 Sheet Input Unit) . . . . . . . . . . . . . . . . . . . . 1-6

Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Model and Serial Numbers . . . . . . . . . . . . . . . . . . . . . . 1-7

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Media Selection Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Adhesive Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Transparencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Storing Print Media . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Shipping Print Media . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

External View of HP LaserJet 5Si/5Si MX/NX and Mopier Engine . 1-14

External View of HP LaserJet 5Si Mopier . . . . . . . . . . . . . . 1-15

Formatter Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Accessories and Options . . . . . . . . . . . . . . . . . . . . . . . . 1-17

Hard Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Determining Memory Requirements . . . . . . . . . . . . . . . . . 1-20

Service Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

Exchange Program . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

Consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

Toner Cartridge Life . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

Refilled Toner Cartridges & Non-HP Staple Cartridges . . . . . . 1-23

Product Information 1-1

Recycling Toner Cartridges . . . . . . . . . . . . . . . . . . . . . . . . 1-23

Related Documentation and Training Media . . . . . . . . . . . . . . . 1-24

Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

HP AUDIO-TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

HP FIRST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

HP CompuServe Forum . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

World Wide Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

HP Reseller Sales and Service Support Line . . . . . . . . . . . . . . . 1-26

Other Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

1-2 Product Information

Printer Features

Table 1-1 Printer Features

Product

Information

Features LaserJet 5Si

Print Speed

Duplex Speed

Text & Graphics Resolution

Printer Language(s) Standard

Optional

Duty Cycle (Monthly Usage)

Memory: Standard Optional (maximum)

Internal Typefaces 45 PCL 45 PCL, 35 PostScript 45 PCL, 35 PostScript

(C3166A)

24 ppm letter or A4 13 ppm ledger (11x17) or A3 15 ppm legal or B4

9.5 ppm letter or A4

6.5 ppm ledger or A3

7.5 ppm legal or B4 600 dpi; plus

Resolution Enhancement technology (REt)

Enhanced PCL 5

Adobe PostScript Level 2

Up to 100,000 images Up to 100,000 images Up to 100,000 images

4 Mbyte 132 Mbyte total

LaserJet 5Si MX

(C3167A)

24 ppm letter or A4 13 ppm ledger (11x17) or A3 15 ppm legal or B4

9.5 ppm letter or A4

6.5 ppm ledger or A3

7.5 ppm legal or B4 600 dpi; plus

Resolution Enhancement technology (REt)

Enhanced PCL 5 Adobe PostScript Level 2

None

12 Mbyte 76 Mbyte total

LaserJet 5Si Mopier

(C4076A/C4077A/

C4176A)

24 ppm letter or A4 13 ppm ledger (11x17) or A3 15 ppm legal or B4

9.5 ppm letter or A4

6.5 ppm ledger or A3

7.5 ppm legal or B4 600 dpi; plus

Resolution Enhancement technology (REt)

Enhanced PCL 5 Adobe PostScript Level 2

None

12 Mbyte 76 Mbyte total

Cartridge Slots 000 Standard Interfaces IEEE 1284 ECP

Power Control PowerSave Mode PowerSave Mode PowerSave Mode Control Panel 5 Keys, LCD Display

EconoMode (toner saving)

Printer memory is optimized with Memory Enhancement technology (MEt).

SIMMS available for use include 2, 4, 8, 16, and 32 Mbtye Modules. See “Accessories &

Supplies” in Chapter 8 for option product numbers. (32 Mbyte modules are compatible, but not available from Hewlett-Packard.)

If the 8 Mbyte module is removed and replaced with a 32 Mbyte module, the maximum can be 100 Mbytes.

Parallel

(2-line, 20 characters per line)

Ye s Ye s Ye s

IEEE 1284 ECP Parallel JetDirect MIO

5 Keys, LCD Display (2-line, 20 characters per line)

IEEE 1284 ECP Parallel JetDirect MIO

5 Keys, LCD Display (2-line, 20 characters per line)

Product Information 1-3

Paper Capacities and Sizes

Tray 1

Table 1-2

Media Type (Feed Orientation)

Maximum paper size 11.7 x 17.7 in

Minimum paper size 3.9 x 7.5 in

Paper, Letter (Landscape)

Paper , ISO A4 (Landscape)

Paper, Executive (Portrait)

Paper, Legal (Portrait)

Paper, Ledger (Portrait)

Paper , ISO A3 (Portrait)

Paper, JIS B5 (Landscape)

Paper, JIS B4 (Portrait)

Transparency See minimum

Label 0.005 - 0.007 in. thick

Envelope, Commercial #10 (Com 10) (Portrait)

Envelope, C5 (Portrait)

Envelope, DL (Portrait)

Envelope, Monarch and B5 (Portrait)

Tray 1 Media Guidelines

Dimensions Weight Capacity

Single-sided: 16-lb bond to

(297 x 450 mm)

(99 x 191 mm)

8.5 x 11 in (216 x 279 mm)

8.3 x 11.7 in (210 x 297 mm)

7.25 x 10.5 in (184 x 267 mm)

8.5 x 14 in (216 x 356 mm)

11 x 17 in (279 x 432 mm)

11.7 x 16.5 in (297 x 420 mm)

7.16 x 10.12 in (182 x 257 mm)

10.12 x 14.33 in (257 x 364 mm)

and maximum paper sizes listed above

4.1 x 9.5 in (105 x 241 mm)

6.4 x 9.0 in (136 x 231 mm)

4.3 x 8.7 in (109 x 218 mm)

3.9 x 7.5 in (99 x 191 mm)

53-lb bond (110-lb index); 60 to 199 g/m

Two-sided: 16 to 28-lb bond (60 to 105 g/m

0.0039 - 0.0045 in. thick (0.099 to 0.114 mm)

(0.127 to 0.178 mm) Should not exceed 28-lb

bond (105 g/m

)

100 sheets of 20-lb bond paper

(Do not load to more than a maximum height of 10 mm—the paperfill mark.)

Limit to paperfill mark on paper width guides

Up to 10 at one time

1-4 Product Information

Table 1-2

Media Type (Feed Orientation)

Tray 1 Media Guidelines (continued)

Dimensions Weight Capacity

Product

Information

Envelope, B5 (Portrait)

Post Card, 2X 5.83 x 7.87 in

6.93 x 9.84 in (176 x 250 mm)

(149 x 200 mm)

Tray 2

Table 1-3

Media Type (Feed Orientation)

Paper, Letter (Landscape)

Paper , ISO A4 (Landscape)

Paper, Legal (Portrait)

Paper, JIS B4 (Portrait)

Tray 2 Media Guidelines

Dimensions Weight Capacity

8.5 x 11 in (216 x 279 mm)

8.3 x 11.7 in (210 x 297 mm)

8.5 x 14 in (216 x 356 mm)

10.12 x 14.33 in (257 x 364 mm)

Should not exceed 28-lb bond (105 g/m

Should not exceed 110-lb index (199 g/m

Single-sided: 16 to 28-lb (60 to 105 g/m

Two-sided: 16 to 28-lb bond (60 to 105 g/m

)

Up to 10 at one time

500 sheets of 20-lb bond paper

(letter and A4 for T rays 2,3, and 4)

Note

Caution

The HP LaserJet 5Si HM (C3124A) supports 16-53 lb bond media from all trays. However, performance in Tray 2 may not be as good with heavier media due to the sharp turn in the paper path. For best performance, Tray 1, 3, or optional Tray 4 are recommended.

When using 16 lb bond media, only use fusing mode=STD PAPER.

Product Information 1-5

Tray 3

Table 1-4

Media Type (Feed Orientation)

Paper, Letter (Landscape)

Paper , ISO A4 (Landscape)

Paper, Legal (Portrait)

Paper, JIS B4 (Portrait)

Paper, Ledger (Portrait)

Paper , ISO A3 (Portrait)

Table 1-5

Tray 3 Media Guidelines

Dimensions Weight Capacity

8.5 x 11 in (216 x 279 mm)

8.3 x 11.7 in (210 x 297 mm)

Single-sided: 16 to 28-lb (60 to 105 g/m

Two-sided: 16 to 28-lb bond (60 to 105 g/m

)

500 sheets of 20-lb bond paper

(letter and A4 for T rays 2,3, and 4)

8.5 x 14 in (216 x 356 mm)

10.12 x 14.33 in (257 x 364 mm)

11 x 17 in (279 x 432 mm)

11.7 x 16.5 in (297 x 420 mm)

Tray 4 (2000 Sheet Input Unit)

Tray 4 Media Guidelines

Media Type (Feed Orientation)

Paper, Letter (Landscape)

Paper , ISO A4 (Landscape)

Paper, Legal (Portrait)

Paper, JIS B4 (Portrait)

Paper, Ledger (Portrait)

Paper , ISO A3 (Portrait)

1-6 Product Information

Dimensions Weight Capacity

8.5 x 11 in (216 x 279 mm)

8.3 x 11.7 in (210 x 297 mm)

Single-sided: 16 to 28-lb (60 to 105 g/m

Two-sided: 16 to 28-lb bond (60 to 105 g/m

)

2000 sheets of 20-lb bond paper

(letter and A4 for T rays 2,3, and 4)

8.5 x 14 in (216 x 356 mm)

10.12 x 14.33 in (257 x 364 mm)

11 x 17 in (279 x 432 mm)

11.7 x 16.5 in (297 x 420 mm)

Figure 1-1

Identification

Model and Serial Numbers

The model number and serial numbers are listed on identification labels located on the rear of the printer. The model number is alphanumeric, such as C3166A for the HP LaserJet 5Si 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.

Product

Information

Sample Model and Serial Number Label

The identification labels for the 2000 Sheet High Capacity Input Tray are located on the back panel, directly below the identification labels on the printer.

To locate the identification labels for the 8 bin Multi-Bin Mailbox and 5 bin Multi-Bin Mailbox with Stapler, detach the unit from the printer. The identification labels are located on the bottom right of the front side (side that attaches to printer).

Product Information 1-7

Specifications

This section contains information on physical and electrical characteristics of the printer. For information on the printer site and environmental requirements (such as operating temperature and humidity, ventilation, etc.) see Chapter 2.

Table 1-6 Printer Dimensions

Height 21.3 in. (541 mm) Height of 2000 Sheet Input Unit (Tray 4) 18.9 in. (480 mm) Width

printer only with Multi-Bin Mailbox/Mailbox With Stapler

attached Width of Multi-Bin Mailbox/Mailbox With Stapler 19.5 in. (495 mm) Depth (body) 20.5 in. (520 mm) Weight (without toner cartridge and with paper trays) 99 lbs. (45 kg) Toner cartridge weight

1 Add 5.5 inches (140 mm) for the Multi-Bin Mailbox/Mailbox With Stapler. Refer to Chapter 2 for

more details.

2 Some quantity of toner will reside in the waste toner area of a toner cartridge when the toner

supply is exhausted. Therefore toner cartridge weight may be an unreliable indication of remaining toner supply.

Full: Empty:

Description Dimension

46.75 in. (1187 mm)

66.25 in. (1683 mm)

106 oz (3000 g)

80.5 oz (2200 g)

1-8 Product Information

Table 1-7 Electrical Specifications

Volts Freq Amps* Watts (typical)

Printer

Product

Information

120 Vac ± 10% 100 Vac ± 10%

220 Vac ± 10% 240Vac ± 10%

2000-Sheet Input Unit (Tray 4)

120 Vac ± 10% 50/60 Hz ± 2 Hz

240 Vac ± 10% 50/60 Hz ± 2 Hz

Multi-Bin Mailbox/Mailbox With Stapler

100-240 Vac

*Operating current requirements.

50/60 Hz ± 2 Hz 50/60 Hz ± 2 Hz

50 Hz ± 2 Hz 50 Hz ± 2 Hz

50/60 Hz ± 2 Hz

13.5 @ 120v

6.0 @ 220v

0.5 maximum

0.3 average

0.3 maximum

0.2 average

0.5 @ 120v

0.25 @ 240v

printing = 500 standby = 135 PowerSave Mode

LaserJet 5Si =21 LaserJet 5Si MX=24

printing = 500 standby = 135 PowerSave Mode

LaserJet 5Si =21 LaserJet 5Si MX=24

45 Watts Maximum

Product Information 1-9

Table 1-8 Acoustic Emissions

Operation position (per ISO 9296) Printer

Printer System*

(stand alone) Printing L Standby L

dB(A) 54 db 56 db

dB(A) 42 db 42 db

Bystander 1m (per ISO 9296) Printing L Standby L

dB(A) 50 db 55 db

dB(A) 38 db 42 db

Sound Power (per ISO 9296) Printing L Standby L

* Printer System includes the 2000-Sheet Input Unit, Multi-Bin Mailbox/Mailbox With Stapler, Duplex

Unit, and Envelope Feeder.

WAD WAD

6.6 bels (A) 7.1 bels (A)

5.5 bels (A) 5.5 bels (A)

1-10 Product Information

Media Selection Guidelines

Product

Information

Note

More detailed specifications are in the HP LaserJet 5Si and 5Si MX User’s Guide, and the HP LaserJet Printer Family Paper Specification Guide. (See “Related Documentation and Training Media” later in this chapter.)

Paper

To achieve the best possible print quality and avoid paper jams, follow these guidelines for selecting paper:

• Use only copier grade paper that meets all specifications in the paper

specification guide. Avoid paper with embossed lettering, perforations, or texture that is too smooth or too rough.

• Colored paper should be of the same high quality as white photocopy paper.

The pigments must withstand the fusing temperature of 392° (215° C for HP LaserJet 5Si Heavy Media printers) for 0.1 second without deterioration. Do not use paper with a colored coating that was added after the paper was produced.

• Pre-printed forms must be printed with non-flammable, heat-resistant inks

that do not melt, vaporize, or release hazardous emissions when subjected to the fusing temperature of 392° F (200° C) (215° C for HP LaserJet 5Si Heavy Media printers) for 0.1 second.

• A small sample of a new print media should be tested before purchasing

large quantities.

F (200° C)

Caution

Envelopes

To prevent severe printer damage, do not use envelopes that have windows, clasps, snaps, or synthetic materials.

Print Envelopes to the Face-Up Bin only

Envelopes can be printed from Tray 1 and from the optional Envelope Feeder. Choose envelopes that are well-constructed. They should lay flat and be sharply creased. They should not be wrinkled, nicked, or otherwise damaged. Envelope adhesive must be compatible with the heat and pressure of the fusing process.

Product Information 1-11

Adhesive Labels

Use the following guidelines when selecting labels:

Caution

Tray 1 is required for printing adhesive labels. Print labels to the Face-Up Bin only. This printer does not support use of labels with any exposed spaces. Do not attempt to print on label sheets after any of the labels have been

removed from the sheet. Damage to the printer may result.

• Labels must be arranged on the carrier sheet so that there are no exposed

spaces on the sheet. Using label stock with spaces between rows or columns of labels can often result in labels peeling off during printing, causing serious jamming and possible printer damage.

• The top sheet (printing surface) must be of copier quality and provide good

toner adhesion.

• The carrier sheet (backing sheet) must be compatible with the temperatures

and pressure of the fusing process, and must be coated for easy release of the top sheet.

• The adhesive must be stable at the 392° F (200° C) temperatures

encountered for 0.1 second in the fusing process, and must not produce emissions that exceed exposure levels or threshold limits established by OSHA and other safety agencies. Adhesives must not come into direct contact with any part of the printer.

A wide selection of suitable labels may be ordered through Hewlett-Packard. Available sizes are listed in the HP LaserJet Printer

Family Paper Specification Guide.

Transparencies

Caution

1-12 Product Information

Tray 1 (Multi Purpose) is required for printing transparencies. Print transparencies to the Face-Up Bin only.

Overhead transparencies used in HP LaserJet printers must be able to withstand the 392° F (200° C) temperatures encountered in the printer’s fusing process for 0.1 second. Suitable transparency film is available through Hewlett-Packard. Refer to the HP LaserJet Printer Family Paper Specification Guide for details.

Storing Print Media

Follow these guidelines when stacking and storing print media:

• Store paper in its ream wrapper until ready to use.

• Re-wrap partially used packages of media before storing.

• Stack each carton upright and squarely on top of the other.

• Store envelopes in a protective box to avoid damaging the envelope edges.

• Keep stored media away from temperature and humidity extremes.

• DO NOT store cartons or reams directly on the floor where they will absorb

a higher moisture content. Instead, place cartons on a pallet or on shelves.

• DO NOT store individual reams in a manner that causes them to curl or

warp along the edges.

• DO NOT stack more than six cartons on top of each other.

• DO NOT place anything on top of media, regardless of whether the paper is

packaged or unpackaged.

Product

Information

• DO NOT store printed documents in vinyl folders (which may contain

plasticizers) or expose the documents to petroleum based solvents.

Shipping Print Media

When shipping print media through different environments, plastic wrap all cartons on the shipping pallet. When shipping media across bodies of water, wrap individual cartons as well. Packaging must protect the media from physical damage.

Product Information 1-13

Figure 1-2

Product Overview

External View of HP LaserJet 5Si/5Si MX/NX and Mopier Engine

HP LaserJet 5Si/5Si MX/NX and Mopier Engine - Front and Right Side View with Tray 1 Open

1 Face-Up Bin 2 Control Panel 3 Face-Down Bin 4 Adjustable Paper Stop 5 Toner Cartridge Access Door 6 Tray 1 7 Tray 1 Extensions 8 Tray 1 Paper Width Guides

9 Input Slot for 2000-Sheet Input (Tray 4) 10 Tray 1 Pickup Roller 11 Tray 2 12 Tray 3 13 ON/OFF Switch 14 Front Access Door

1-14 Product Information

Figure 1-3

External View of HP LaserJet 5Si Mopier

HP LaserJet 5Si Mopier - Front and Right Side View with Tray 1 Open

Product

Information

1 Left Output Bin 2 Control Panel 3 Top Output Bin 4 Adjustable paper stop 5 Top cover 6 Envelope Feeder (optional) 7 Tray 1 (multi-purpose) 8 Tray 1 extensions

9 Tray 1 paper width guides 10 Front door 11 Tray 2 12 HP 2000-Sheet Input Tray (Tray 4) 13 Tray 3 14 Mailbox with Stapler 15 On/Off switch 16 Duplexing Unit (internal) 17 Stapler Unit

Product Information 1-15

Figure 1-4

Formatter Assemblies

Rear and Left Side View

1 Formatter Printed Circuit Assembly 2 Hard Disk Accessory Location (optional for LJ 5Si/5Si MX/5Si NX and

standard for LJ 5Si Mopier and Mopier Engine)

3 MIO Card 1 Location 4 Parallel IEEE 1284 Interface Port 5 MIO Card 2 Location 6 External Paper Handling Controller Board Location 7 SIMM Slots 8 AC Power Connector 9 Model and Serial Number Label

1-16 Product Information

Figure 1-5

Accessories and Options

The accessories and optional equipment for the LaserJet 5Si, 5Si MX, and 5Si NX printers are shown in Figure 1-5 and described in Table 1-9. For the LaserJet 5Si Mopier (C4076A), all the accessories in Figure 1-4 and in Table 1-9 are standard features, except for the Envelope Feeder and the Multi-Bin Mailbox (replaced with the Mailbox with Stapler).

Product

Information

HP LaserJet 5Si/5Si MX/NX Optional Paper Handling Accessories

1 Envelope Feeder

2 Duplex Unit

3 HP 2000-Sheet Input Unit (Tray 4)

4 Multi-Bin Mailbox (provides mailbox, job separation, and job stacking for

the LaserJet 5Si family

5 Mailbox with Stapler (provides mailbox, job separation, job stacking, and

stapling for the LaserJet 5Si family

Product Information 1-17

Table 1-9

Accessories and Options

Accessory/Option Part/Product Number Description

Toner Cartridge C3909A Replacement toner cartridge. Stapler Cartridges C3772A 3-pack of staple cartridges. Each cartridge

contains 2000 staples and should last about two months, depending on use.

Memory upgrades 2 MByte—C3131A

4 MByte—C3132A 8 MByte—C3133A

Upgrade to a total of 132 MBytes of memory in the HP LaserJet 5Si or to 76 MBytes in the HP LaserJet 5Si MX.

16 MByte—C3146A

Third-party 32 MByte memory SIMMs are also available.

*Adobe’s PostScript Level 2 printer language

C3169A C3169-69001

Add Adobe’s PostScript Level 2 language by installing this SIMM in your printer. (Additional memory is recommended.) This language is standard in the HP LaserJet 5Si MX printer.

*Duplex Unit C3762A Provides the printer with two-sided printing

capability.

HM Duplex Unit C4178A Heavy media duplexer . Only compatible with HP

LaserJet 5Si HM (C3124A).

Envelope Feeder C3765A Attaches to printer above Tray 1; holds up to 100

envelopes. Supports Commercial #10, C5, DL, Monarch, ISO B5.

*Tray 4 (HP 2000-Sheet Input Unit)

C3763A/ R77-1002-000CN (for LJ 5Si & 5Si MX only)

Adjustable for Letter, Legal, Ledger , ISO A4, ISO A3, JIS B4. (Includes C3768A External Paper

Handling PCA.) C3773A (for LJ 5Si Mopier only)

Multi-Bin Mailbox C3764A

C3764-69100

Features eight bins holding 250 sheets of paper

each. Supports the same paper sizes as the

printer. Envelopes, labels, and transparencies

must be sent to the Face-Up Bin.

*Mailbox with Stapler C3774A Features five bins holding 250 sheets of paper

each. Supports the same paper sizes as the

printer. Provides stapling of jobs for both letter

and A4 paper sizes. Envelopes, labels, and

transparencies must be sent to the Face-Up Bin.

*Tray 2 (500-Sheet Input) C2931A/

R77-0004-000CN

*Tray 3 (500-Sheet Input) C2930A/

R77-0003-000CN

HP parallel printer cable

C2951A HP-recommended IEEE-1284 Cable with A and B

(3 meter)

Holds 500 sheets; adjustable for Letter, Legal,

ISO A4, JISB4.

Holds 500 sheets; adjustable for Letter, Legal,

Ledger, ISO A4, ISO A3, JIS B4.

connectors

1-18 Product Information

Table 1-9

Accessory/Option Part/Product Number Description

Modular I/O and Network Cards

Accessories and Options (continued)

J2550A

HP JetDirect Multi-protoc ol Network Card with Ethernet/IEEE802.3 10 Base-T

Product

Information

J2552A

J2555A

UNIX Interface Software J2374B

J2375B

*Printer Hard Disk C2965A 420 MByte disk drive for both PCL and PostScript Printer Stand C2975A 18.9 in (480 mm) tall for the HP LaserJet 5Si/5Si

110V Maintenance Kit C3971A

C3971-69001

220V Maintenance Kit C3972A

C3972-69001

External Paper Handling Controller Board

* Standard feature in the LJ 5Si Mopier (C4076A)

C3768A Controller board for optional paper handling input

HP JetDirect Multi-protoc ol Network Card with LocalTalk, DIN-8 and Ethernet/IEEE802.3 10Base-T, BNC (standard in LJ5Si MX)

HP JetDirect Multi-protoc ol Network Card with Token Ring (DB9 and RJ45)

HP JetDirect interface software for HP-UX systems HP JetDirect interface software for SunOS and

Solaris UNIX systems

MX printers Contains replacement Fusing Assembly, T ransfer

Roller, and Feed and Separation Rollers for 110V printers.

Contains replacement Fusing Assembly, T ransfer Roller, and Feed and Separation Rollers for 220V printers.

and output devices. Not needed for the Envelope Feeder or Duplex Unit.

Hard Disk

The Printer Hard Disk accessory is optional for the HP LaserJet 5Si, 5Si MX, and 5Si NX printers. The hard disk is a standard feature of the HP LaserJet 5Si Mopier and Mopier engine. It can be used to permanently store downloaded fonts and forms in the printer. Unlike the standard printer memory, permanently downloaded items remain in the printer even when the printer is powered off.

Fonts downloaded to the hard disk are available to all users of the printer. Macintosh users can use the HP LaserJet Utility, and Windows users can

use the HP printer driver to download fonts. The Printer Hard Disk can also be write-protected through software for additional security. Refer to the on line help associated with your HP software for more information.

Product Information 1-19

If you are a PostScript language programmer, refer to Adobe’s PostScript Language Reference Manual for information about downloading forms and patterns to the disk. (For the Macintosh environment, refer to the on line help in the HP LaserJet Utility Guide included with the HP LaserJet Utility software.) For the Windows environment, refer to your HP Windows driver on line help.

Determining Memory Requirements

The amount of memory you need depends on the types of documents your print. With the PCL printer language, your HP LaserJet 5Si printer can print most text and graphics at 300 or 600 dpi without additional memory.

Add memory to your printer if you:

• commonly print complex graphics.

• Use many downloaded fonts.

• Print complex documents.

• Use advanced functions (such as I/O Buffering and Resource Saving).

For the HP LaserJet 5Si printer, you can add up to 128 MBytes of memory for a total of 132 MBytes. If you have the HP LaserJet 5Si MX printer or 5Si Mopier, you can add up to 64 MBytes of additional memory for a total of 76 MBytes.

Table 1-10 presents the amount of memory required for the most common print jobs performed with the HP LaserJet 5Si/5Si MX/5Si NX/Mopier using 600-dpi printing.

Table 1-10

Print Job Paper Size PCL Minimum

single-sided printing Letter, A4, Legal 4 MBytes 9 Mbytes

two-sided printing Letter, A4 4 MBytes 12 Mbytes

1-20 Product Information

Minimum Memory Requirements

PostScript Minimum

Memory Requirements

11 in x 17 in, A3 4 MBytes 12 Mbytes

Legal 4 MBytes 14 Mbytes 11 in x 17 in, A3 12 MBytes 22 Mbytes

Memory Requirements

Service Approach

Repair of the printer normally begins with a three-step process:

• Step 1: Isolate the problem to the major system, i.e. the host computer,

the network and/or server, or the printer system.

• Step 2: Determine if the problem is located in the accessories or in the

printer engine.

• Step 3: Troubleshoot the problem using the procedures in Chapter 7.

Once a faulty part is located, repair is usually accomplished by assembly level replacement of Field Replaceable Units (FRUs). Some mechanical assemblies may be repaired at the subassembly level. Replacement of components on the printed circuit assemblies is not supported by Hewlett-Packard.

Ordering Parts

Field replaceable part numbers are found in Chapter 8 of this manual. Replacement parts may be ordered from HP’s Support Materials Organization (SMO), or Support Materials Europe (SME).

Product

Information

Phone numbers for the various sources are:

• SMO (Support Materials Organization)

1-800-227-8164 (U.S. Only)

• SME (Support Materials Europe)

(49 7031) 142253

• HP’s Distribution Center (HPD)

1-303-353-7650

Exchange Program

HP offers remanufactured assemblies for some parts. These are identified in Chapter 8 and can be ordered through Parts Direct Ordering (PDO), Support Materials Organization (SMO), or Support Materials Europe (SME).

Product Information 1-21

Figure 1-6

Consumables

The printer has two consumables, the toner cartridge and staple cartridges, which may be ordered directly from Hewlett-Packard. Refer to Chapter 8 for ordering information.

Toner Cartridge Life

The Toner Cartridge (C3909A) is designed to simplify replacement of the major “consumable” parts. The toner cartridge contains the printing mechanism and a supply of toner.

At 5% page coverage, a toner cartridge is guaranteed to print approximately 15,000 images (see Figure 1-6).

Sample 5% Page Coverage

The toner cartridge may print less than 15,000 images if routinely printing very dense print. Conversely, when routinely printing pages with less coverage (such as short memos), or in EconoMode, the toner cartridge may print more than 15,000 images. However, EconoMode does not extend toner cartridge component life.

Note

1-22 Product Information

For best results, always use a new toner cartridge before the expiration date stamped on the toner cartridge box.

Refilled Toner Cartridges & Non-HP Staple Cartridges

While Hewlett-Packard does not prohibit the use of refilled toner cartridges and non-HP staple cartridges during the warranty period or while under a maintenance contract, their use is not supported for the following reasons:

• Repairs resulting from the use of refilled toner cartridges and non-HP

staple cartridges are not covered under the Hewlett-Packard warranty or maintenance contract.

• Hewlett-Packard has no control or process to ensure that a refilled toner

cartridge or non-HP staple cartridge functions at the high level of reliability of a new HP LaserJet toner cartridge or HP LaserJet staple cartridge. Also, Hewlett-Packard cannot predict the long term reliability effect on the printer when using different toner formulations found in refilled cartridges.

• The print quality of HP LaserJet toner cartridges influences the customer’s

perception of the printer. Hewlett-Packard has no control over the actual print quality of a refilled toner cartridge.

Recycling Toner Cartridges

In order to reduce waste, Hewlett-Packard utilizes a recycling program for used toner cartridges. Cartridge components that do not wear out are recycled, as are plastics and other materials. Hewlett-Packard pays the shipping costs from the user to the recycling plant. For each cartridge returned, HP donates one U.S. dollar to be shared by the Nature Conservancy and the National Wildlife Federation. To join this recycling effort, follow the instructions inside the toner cartridge box.

Product

Information

Product Information 1-23

Related Documentation and Training Media

Table 1-11 lists where to order related documentation. See “Ordering Parts” earlier in this chapter for the phone numbers of each organization.

Table 1-11 Related Documentation

Description Part Number SMO SME HPD

HP LaserJet 5Si Family Service Manual Bundle

HP LaserJet 5Si Family User Bundle HP LaserJet 5Si MX Mopier User Bundle HP JetDirect Print Server Software

Installation Guide

HP LaserJet Family Quick Reference Service Guide

HP PCL5 Printer Language Technical Reference Information Package

HP LaserJet Printer Family Paper Specifications Guide

HP LaserJet 5Si HM User’s Guide Erata Sheet

Introduction to Network Printing, Network Printing for the Enterprise,

Book 5961-0649 X X

Video 5961-0650 X X

LaserJet Basic Hardware Training Course Solutions Connectivity Guide

(Av a i l a bl e f r o m L D C 1-800-544-9976)

C4077-99015

C3166-99018 X C4077-99001 X

J2552-90051 X

5021-0369 X X

5021-0330 X X

5010-6394 X

C3124-90901 X

5961-0880 X X

5962-8536E

Specific Application Drivers

Shipped with printer. (English version part number is shown. Other translations are available.

1-24 Product Information

Technical Assistance

HP ASAP (Automated Support Access Program) provides free technical support information 24 hours a day, 7 days a week. The ASAP system includes HP AUDIO-TIPS and HP FIRST, both explained below. The ASAP service requires a touchtone phone.

HP AUDIO-TIPS

HP AUDIO-TIPS is an interactive voice response system providing prerecorded answers to the most frequently asked questions by HP LaserJet printer users. Helpful “System Maps” to the HP AUDIO-TIPS recordings are available by fax through HP FIRST.

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 type 3 facsimile machine or fax card. Service related information includes:

• Service notes (HP Authorized dealers)

• 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.

Product

Information

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., 0800-96-02-71 Netherlands, 06-02-22-420

Belgium (Dutch), 078-11-19-0 Germany, 0130-810061 Switzerland (German), 155-1527 Austria, 0660-8128

For English service outside the above countries, (31) 20-681-5792.

Product Information 1-25

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 HP at any prompt. For more information, or to join CompuServe, call 1-800-524-3388.

Internet

Anonymous ftp library service is available for around-the-clock access to drivers, software, and technical support information for HP peripheral and computer products. Please note that paths may change without notice. Access the Internet or FTP address and use the menus to locate the software or support of your choice.

URL for Access HP: http://www.hp.com URL for Software and Support: http://www.hp.com/go/cposupport FTP address: ftp.hp.com Login: anonymous Password: your Internet name (or user identification)

FTP Path for Drive Software: /pub/printers FTP Path for Network Software: /pub/networking

World W ide Web

Download printer driver software using www.hp.com/go/cposupport.

HP Reseller Sales and Service Support Line

The Hardware Technical Support Center (HTSC) is available for technical support to assist Hewlett-Packard authorized service technicians. The HTSC can be reached at 1-800-544-9976 between 7:00 A.M. and 6:00 P.M. Mountain Standard Time, Monday, Tuesday, Thursday and Friday. On Wednesdays the office closes at 4:00 P.M.

Other Areas

Outside of North America and Europe, contact your local HP sales office for assistance in obtaining technical support.

1-26 Product Information

Warranty

This warranty entitles you to standard warranty services for your printer and accessories and is available from HP worldwide. However, there may be local variations in the level of warranty service. You should contact the local HP Service Center to check for the applicable local warranty in your country or province.

One-Year On-Site Limited Warranty

Hewlett-Packard warrants its computer hardware products against defects in materials and workmanship for a period of one year from purchase by the end user. During the warranty period, HP will, at its option, either repair or replace products which prove to be defective. The warranty period begins

either on the date of delivery or, where the purchase price includes installation by Hewlett-Packard, on the date of installation.

Should HP be unable to repair or replace the product within a reasonable amount of time, you will be entitled to a refund of the purchase price if you return the product.

To have your printer serviced by HP you should contact the closest HP Service Center.

Exclusions

The warranty on your HP LaserJet 5Si family printer shall not apply to defects resulting from:

Product

Information

• Improper or inadequate maintenance by customer.

• Customer supplied software or interfacing.

• Unauthorized modification or misuse.

• Operation outside of the environmental specifications for the product.

• Operation of non-supported printing media.

• Duty cycle abuse maximum (see the note on the following page).

• Using a mechanical switchbox with the printer without a designated

surge protector.

• Improper site preparation and maintenance.

• Failure to perform key operator maintenance every 350,000 images

(250,000 images with HP LaserJet 5Si Heavy Media printers).

• Use of non-HP toner cartridges (see the following explanation), memory

boards, or interface boards.

Product Information 1-27

Note

The use of non-Hewlett-Packard toner cartridges alone does not affect either your warranty or any maintenance contract you may have purchased. However, if an HP LaserJet printer failure or damage is found to be attributable directly to the use of a non-HP toner cartridge, HP will not repair the printer free-of-charge. In this case, standard time-and-materials charges will be applied to service your printer for that particular failure or damage.

Operation of the printer beyond the limit of its duty cycle (printing greater than the equivalent of 100,000 images per month) shall be deemed printer abuse and all repairs thereafter will be billed on a time-and- materials basis.

If you are using a mechanical switch box, ensure that it is equipped with a surge protector. Damage to your printer could occur from the use of unprotected mechanical switch boxes.

Warranty Limitations

The warranty set forth above is exclusive and no other warranty, whether written or oral, is expressed or implied. Hewlett-Packard specifically disclaims the implied warranties of merchantability and fitness for a particular purpose.

Service During the Warranty Period

If your hardware should fail during the warranty period, contact an authorized HP dealer or an HP Customer Service Center.

Service After the Warranty Period

If your hardware fails after the warranty period, contact an authorized HP dealer or your local Customer Service Center. If you have an HP Maintenance Agreement, request service under your agreement.

1-28 Product Information

Site Requirements

Chapter Contents

Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Space Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . 2-4

Site Requirements 2-1

2-2 Site Requirements

Operating Environment

The electrical specifications listed in Chapter 1 must be maintained to ensure proper operation of this printer. Consider the following points before installing the printer.

• Install in a well-ventilated, dust-free area.

• Install on a hard, flat and continuous surface, with all four printer feet

level. Do not install on carpet or other soft surfaces.

• Ensure adequate power is supplied. Printer power requirements are listed

under “Specifications,” in Chapter 1.

• Install where there is stable temperature and humidity, away from water

sources, humidifiers, air conditioners, refrigerators, or other major appliances (see Table 2-1).

• 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.

• Install with enough space around the printer for proper access and

ventilation (see Figure 2-1).

Site

Requirements

• Install printer away from the direct flow of exhaust from air ventilation

systems.

Site Requirements 2-3

Figure 2-1

Space Requirements

Printer Space Requirements 1 Top view 2 Side view

Environmental Requirements

Keep the printer within the following environmental conditions for optimum performance.

Table 2-1

2-4 Site Requirements

Printer and Toner Cartridge Environmental Conditions

Temperature 10° to 32.5° C

Humidity 20 to 80% RH

Item Operating Storage

0° to 40° C

(50° to 90.5° F)

(with no condensation)

(32° to 105° F) 15 to 90% RH

(with no condensation)

Operating Overview

Chapter Contents

Using the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Control Panel Layout . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Settings and Defaults . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Printer Driver Information . . . . . . . . . . . . . . . . . . . . . . 3-5

Paper Source Default . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Restoring Factory Defaults . . . . . . . . . . . . . . . . . . . . . . 3-6

Setting the Display Language . . . . . . . . . . . . . . . . . . . . 3-6

Heavy Media Fuser Mode Explanation . . . . . . . . . . . . . . . . . . 3-8

Setting the Fuser Mode Using PJL Command . . . . . . . . . . . 3-9

Control Panel Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Tray Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Job Control Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Print Quality Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

PostScript Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

PCL Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

I/O Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

MIO 1 and 2 Menus . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Setting Page Count, Maintenance Count,

and Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Setting the Cold Reset Default Paper Size . . . . . . . . . . . . . 3-24

PowerSave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Testing the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

PCL Configuration Page . . . . . . . . . . . . . . . . . . . . . . . 3-25

Paper Path Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Cold Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Operating Overview 3-1

3-2 Operating Overview

Figure 3-1

Using the Control Panel

Control Panel Layout

The control panel consists of a 2-line, 20-character per line display panel, five keys, and three indicator lights.

Control Panel Layout

Operating

Overview

Table 3-1

Control Panel Keys

Key Function

[On Line] Switches the state of communication between

computer and printer to ON (on line) or OFF (off line). Stops printing when memory clears.

[Menus] Provides a menu system for obtaining status

information or changing the printer configuration.

[Items] Cycles through the items on the selected menu.

Some menu items appear depending upon the options installed and the configuration of other menu choices.

[+] Steps through the item choices. [Select] Selects a desired menu item; an asterisk (*)

indicates the selected item.

Operating Overview 3-3

Indicator Lights

The control panel indicator lights are described in the following table. The column labeled “Do this:” includes an action only when an action is required.

Table 3-2

Indicator Lights

When this

indicator:

On Line On

Flashing Off

Data Off

Flashing

Attention On

Looks like

this:

It means this: Do this:

Ready to receive data. Going off line. Printer is off line.

No data is being received or processed in the printer.

Data is being received or processed.

Data is resident in the printer and processed as far as possible. More data is expected, but no activity on the channel at this time.

Catastrophic error. Printer system is halted.

No action required.

Press [On Line] to place printer on line.

No action required.

Turn printer OFF, then ON. If problem persists, refer to Chapter 7.

3-4 Operating Overview

Flashing

Off

The printer needs attention.

There are no messages or error conditions requiring attention.

Read and respond to display panel message.

No action required.

Settings and Defaults

The printer makes most printing decisions based on either temporary settings or factory (permanent) defaults.

Note

Settings you send from software applications override printer defaults.

Temporary Settings are the values set for the current print job by your software application. Temporary settings remain in effect until the current print job is finished.

Control Panel Defaults are the values entered by selecting a control panel item and pressing [Select]. An asterisk (*) next to the item name indicates that it is now the default. The printer retains default settings even when power is switched OFF.

Factory Defaults are the permanent default values for each menu item set at the factory. These values are listed in Table 3-3.

Printer Driver Information

You can override or change any Printing Menu setting through most software applications and from the printer driver. When you change a setting from the printer control panel, the new setting becomes the printer default value.

Paper Source Default

The printer paper source is specified by the print job, not the printer control panel. The following paragraphs apply when the current job does not specify a paper source. Unless changed or not specified by the current job, the software application, or the printer driver, the paper source default is determined by the “Cold Reset Paper Size” (letter or A4) set in the Service Mode Menu.

Operating

Overview

• If Tray 1 is set to the Cold Reset Paper Size, and if paper is loaded in the

tray (no matter what size), the printer will pull from Tray 1.

• If there is no paper in Tray 1, and Tray 4 is installed and loaded with the

Cold Reset Paper Size, the printer will pull from Tray 4.

• If there is no paper in Tray 1, and Tray 4 is not installed, the printer will

pull from the first tray containing the Cold Reset Paper Size.

• If none of the trays contain the Cold Reset Paper Size, the printer will

prompt the user to put letter or A4 in Tray 1.

Operating Overview 3-5

Restoring Factory Defaults

Caution

If possible, print a PCL Configuration Page prior to performing a Cold Reset. This will document current settings for later reference.

Performing a Cold Reset resets the JetDirect configuration. To avoid making changes to your configuration, remove the JetDirect card before performing a cold reset

1 Press and hold [On Line] while powering the printer ON. 2 Hold down [On Line] until RESTORING FACTORY SETTINGS message appears.

This message is followed by the power-on INTERNAL TEST message. The printer then re-displays RESTORING FACTORY SETTINGS until the power-on initialization is completed. The factory defaults are listed in Table 3-3.

Setting the Display Language

1 Press and hold [Select] while powering ON. Hold [Select] until CONFIG

LANGUAGE appears.

2 Release [Select]. INTERNAL TEST appears briefly. Wait for LANGUAGE=ENGLISH

to appear.

3 Press [+] repeatedly until the desired language appears. 4 Press ]Select] to save your choice. An asterisk (*) will appear beside your

language selection.

3-6 Operating Overview

Table 3-3 Factory Default Settings

Menu Item Default Setting

DISPLAY LANGUAGE= ENGLISH PAPER DESTINATION= TOP OUTPUT BIN PAPER SIZE= LETTER or A4 PAPER TYPE= PLAIN ENVELOPE FEEDER SIZE= COM10 ORIENTATION= PORTRAIT PERSONALITY= AUTO RESOLUTION ENHANCEMENT= ON PRINT DENSITY= 3 ECONOMODE= OFF 2-SIDED= OFF BINDING= LONG EDGE PRINT POSTSCRIPT ERRORS= OFF JAM RECOVERY= OFF PAGE PROTECT= AUTO RESOLUTION= 600 DOTS PER INCH I/O TIMEOUT= 15 SECONDS AUTO CONTINUE= ON TONER LOW= STOP POWER SAVE DELAY= 1 HOUR RESOURCE SAVING= AUTO PARALLEL I/O SPEED SETTING= HIGH IO BUFFER= OFF IO SIZE= 10K COLD RESET PAPER= LETTER SERVICE MESSAGE= OFF DIAGNOSTICS= OFF

Operating

Overview

Operating Overview 3-7

Heavy Media Fuser Mode Explanation

The LaserJet 5Si HM (Heavy Media) provides users the capability to enhance toner adhesion for heavier media. The fuser mode choices can be made at the printer’s control panel or with PJL commands. Press MENU until you see PRINT QUALITY MENU. Press ITEM until you see Fuser=STD PAPER. Make your choice by pressing + and then SELECT to save the selection.

At the control panel, the menu choices are as follows:

STDPAPER HEAVYPAPER1 HEAVYPAPER2 CARDSTOCK1 CARDSTOCK2 CARDSTOCK3

The explanation below is to help determine the best fuser mode for specific media types. Table 3-4 is provided as a quick reference tool and should be used as a guideline.

STDPAPER: The best mode for typical copy bond type paper, transparencies, labels or envelopes. A selection other than STDPAPER should not be necessary for this type of media. The best media weight for this setting is 20-28 lb bond. If better toner adhesion is desired, choose HEAVYPAPER1.

HEAVYPAPER1: This mode may be most suitable for 28-36 lb bond media or heavier label stock. If better toner adhesion is desired, try HEAVY PAPER2 and evaluate the fusing performance.

HEAVYPAPER2: This setting is primarily an optional setting for media in the HEAVYPAPER1 range, 36-42 lb Bond.

CARDSTOCK1: Hewlett-Packard recommends this mode as a starting point for all cardstock media, 90 lb Index/43 lb Bond. Do not use this mode for standard or light media. If better toner adhesion is desired, try CARDSTOCK2.

CARDSTOCK2: This mode may provide increased toner adhesion over CARDSTOCK1. CARDSTOCK2 is intended for use with cardstock media, 90 lb Index/43 lb Bond. Do not use this mode for standard or light media. This mode may cause excessive jams or media deformation on standard and light media. If better toner adhesion is desired, try CARDSTOCK3.

CARDSTOCK3: This mode should only be used if toner is not adhering when using CARDSTOCK1 or CARDSTOCK2.

3-8 Operating Overview

Table 3-4

Initial Fuser Mode Recommendation

STD

PAPER

T ypical copy/bond paper, labels, envelopes, and transparencies.

Supports 20-28 lb Bond media.

Note

HEAVY

PAPER1

Heavier copy/bond paper, labels.

Supports 28-36 lb Bond media.

HEAVY

PAPER2

Heavier copy/bond paper, labels.

Supports 36-42 lb Bond media.

CARD

STOCK1

Cardstock, heavy paper.

Minimum media weight supported is 90 lb Index 43 lb Bond.

CARD

STOCK2

Cardstock heavy paper.

Minimum media weight supported is 90 lb Index 43 lb Bond.

CARD

STOCK3

Cardstock heavy paper.

Minimum media weight supported is 90 lb Index 43 lb Bond.

Any preprinted media, labels or envelopes must have inks, coatings or adhesives that withstand temeratures up to 215° C. Refer to the HP LaserJet Printer Family Paper Specification Guide for more complete media specifications.

Setting the Fuser Mode Using PJL Command

The printer default can be set using the following command: <ESC>%-12345X@PJL<CR><LF>

@PJLDEFAULTFUSER=STDPAPER<CR><LF> <ESC>%-12345X<CR><LF>

The range choices are as follows:

Operating

Overview

STDPAPER HEAVYPAPER1 HEAVYPAPER2 CARDSTOCK1 CARDSTOCK2 CARDSTOCK3

Operating Overview 3-9

Control Panel Menus

Press [Menus] to cycle through the control panel menus. Each menu is described in a separate table in this section. Table 3-5 provides a map of al l the menus and their associated items. Menu items are displayed only if their associated option is installed, or function is activated.

All menus and their associated items are accessible when the printer is on line.

In a menu mode, if no keys are pressed for approximately 30 seconds, the system will automatically return to the top level and display:

• READY, if the printer was on line.

• OFFLINE, if the printer was off line.

• An existing error or service message.

To select a menu item:

1 Press [Menus] repeatedly until the desired menu appears. 2 Press [Items] repeatedly until the desired item appears. 3 Press [+] repeatedly (or hold down [+] to scroll) until the desired setting

appears.

4 Press [Select] to save the selection. An asterisk appears next to the

selection, indicating that it is now the default.

5 Press [Menus] or [On Line] to exit the menus.

3-10 Operating Overview

Note

Shaded items appear only if the associated option or function is activated.

Table 3-5 Control Panel Menu Map

TRAY

See Table 3-6 See Table 3-7 See Table 3-8 See Table 3-9 See Table 3-10

ENVELOPE FEEDER TYPE CANCEL JOB PCL

ENVELOPE FEEDER SIZE PRESS SELECT

TRAY 1 TYPE PCL FONT LIST BINDING RESOLUTION

TRAY 1 SIZE POSTSCRIPT FONT LIST PAPER DESTINATION PRINT DENSITY TRAY 2 TYPE DISK DIRECTORY PAGE ORIENTATION *FUS I NG= TRAY 3 TYPE DEMO PAGES POWER SA VE DELAY STD PAPER TRAY 4 TYPE PRINT ERROR LOG PERSONALITY HEAVY PAPER 1

POSTSCRIPT

See Table 3-11 See Table 3-11 See Table 3-14 See Table 3-14 See Table 3-15 PRINT POSTSCRIPT ERRORS PARALLEL I/O SPEED POSSIBLE MENU ITEMS POSSIBLE MENU ITEMS P AGE COUNT JAM RECOVERY I/O TIMEOUT MAINT COUNT

JOB CONTROL

CONFIGURATION P A G E

TO FORMFEED

POSTSCRIPT CONFIGURATION P A G E

SHOW ERROR LOG AUTO CONTINUE HEAVY PAPER 2 PAPER PATH TEST RESOURCE SAVE CARD STOCK 1

I/O MENU HP MIO 1

I/O BUFFER SERIAL NUMBER I/O SIZE CLEAR ERROR LOG

TEST

CONFIGURATION

SERVICE MESSAGE ECONOMODE

2-SIDED (DUPLEX) RESOLUTION

PCL MEMO RY CARD STOCK 2 POSTSCRIPT MEMORY CARD STOCK 3 TONER LOW PAGE PROTECT

HP MIO 2

PRINT QUALITY

ENHANCEMENT

SERVICE MODE

COLD RESET PAPER DIAGNOSTICS

Operating

Overview

PCL

See Table 3-11 SOURCE NUMBER PITCH SYM SET FORM

* Only shown on menu map for HP LaserJet 5Si HM.

Operating Overview 3-11

Tray Menu

Table 3-6 Tray Menu Items

Tray Menu Items Item Choices Action Required

ENV FEEDER TYPE= PLAIN*

ENV FEEDER SIZE= COM10*

TRAY 1 TYPE= TRAY 2 TYPE= TRAY 3 TYPE=

TRAY 4 TYPE=

TRAY 1 SIZE= LETTER*

PREPRINTED LETTERHEAD TRNSPRNCY PREPUNCHED LABELS BOND RECYCLED COLOR CARDSTOCK

MONARCH DL C5 B5 JPOSTD

PLAIN* PREPRINTED LETTERHEAD TRNSPRNCY (not in Tray s 2 or 3) PREPUNCHED LABELS (not in Trays 2 or 3) BOND (not in Trays 2 or 3) RECYCLED COLOR CARDSTOCK (not in Trays 2 or 3)

LEGAL ISO A4 EXECUTIVE 11 X 17 ISO A3 JIS B4 JIS B5 CUSTOM COM 10 MONARCH C5 DL B5 JPOSTD

Press [Item] to display alternate menu items. Press [+] to display alternate choice. Press [Select] to activate choice.

Asterisk (*) indicates printer default. Shaded menu items appear only if associated option or function is activated.

3-12 Operating Overview

Job Control Menu

The items available in the Job Control Menu can also be changed through software applications if an appropriate printer driver is installed.

Table 3-7 Job Control Menu Items

Job Control Menu Items Item Choices Action Required

CANCEL JOB None Press [Item] to display alternate menu items.

Press [Select] to cancel Job. Printer displays:

STOPPING CHECK LAST PAGE

When printer stops printing it displays:

PRESS SELECT TO CANCEL JOB

Press [Select] again. Printer displays CANCELLING JOB until all data for

current job has been processed. Can take up to 5 minutes to cancel job.

PRESS SELECT TO FORMFEED

Printer returns to READY when finished.

None Press [Item] to display alternate menu items.

Press [Select] to activate formfeed. Printer returns to READY when finished.

Operating

Overview

Operating Overview 3-13

Test Menu

Test Menu items can be selected only from the printer control panel. You cannot change or override them from your software application. See “Testing the Printer” later in this chapter for detailed information about running printer tests and interpreting their results.

Table 3-8 Test Menu Items

Test Menu Items Item Choices Action Required

PCL CONFIGURATION PAGE None Press [Select] to print.

POSTSCRIPT CONFIGURATION PAGE None Press [Select] to print.

PCL FONT LIST None Press [Select] to print.

POSTSCRIPT FONT LIST None Press [Select] to print.

DISK DIRECTORY PAGE None Press [Select] to print.

DEMO PAGES None Press [Select] to print.

PRINT ERROR LOG None Press [Select] to print.

SHOW ERROR LOG None Press [Select] to show/view.

PAPER PATH TEST

Printer displays PRINTING CONFIGURATION PAGE. Printer returns to READY when finished.

Printer displays PRINTING FONT LIST. Printer returns to READY when finished.

Printer displays PRINTING DISK DIRECTORY. Printer returns to READY when finished.

Printer displays PRINTING DEMO PAGES. Printer returns to READY when finished.

Printer returns to READY when finished.

Press [+] to display error codes. Printer returns to READY when finished.

Select output destination and 2-sided printing in CONFIGURATION MENU before starting Paper Path Test.

Press [Select] .

1, 2, 3, 4, ENVELOPE

1, 10, 50, 100, 500

Shaded menu items appear only if associated option or function is activated.

Printer displays INPUT TRAY=. Press [+] to display choices. Press [Select] to activate choice.

Printer displays NUMBER OF COPIES=. Press [+] to display choices. Press [Select] to activate choice.

Printer displays PRINTING PAPER PATH TEST. Printer returns to READY when finished.

3-14 Operating Overview

Configuration Menu

This menu contains the items for Personality, Resource Saving and Memory setup. Depending on how the printer is configured, any combination of menu items and possible values can appear. Memory configuration items can be selected only from the printer control panel.

Caution

When changing memory configuration or I/O Buffering (I/O Menu), the printer will automatically reset. All fonts, macros, and downloaded data (except what is stored on the optional Disk Accessory) will be lost.

When changing Configuration Menu items, the newly selected values become active when the next job starts.

Table 3-9 listing the Configuration Menu items is located on the following page.

Operating

Overview

Operating Overview 3-15

Table 3-9 Configuration Menu Items

Configuration Menu

Items

SERVICE MESSAGE= ON

OFF *

2-SIDED= ON

OFF *

BINDING= LONG EDGE *

SHORT EDGE

PAPER DESTINATION= TOP OUTPUT BIN *

LEFT OUTPUT BIN OPTIONAL OUTPUT BIN 1 OPTIONAL OUTPUT BIN n

ORIENTATION= PORTRAIT *

LANDSCAPE

POWER SAVE DELAY= 1 HOUR * / 2 HOURS / 3 HOURS

OFF 10 SECONDS (SERVICE MODE ONLY) 15 MINUTES / 30 MINUTES

PERSONALITY= AUTO *

PCL POSTSCRIPT

AUTO CONTINUE= ON *

OFF

RESOURCE SAVE= AUTO *

OFF ON

PCL / PS MEM=nnnnnK nnnnnK =possible memory sizes

TONER LOW= STOP *

CONTINUE

PAGE PROTECT= AUTO *

Item Choices Action Required

Displayed only after approx 350,000 (250,000 for HP LaserJet 5Si Heavy Media printers) images and only when PERFORM USER MAINTENANCE message is displayed. Set to OFF turn off PERFORM USER MAINTENANCE message. Press [+] to display choice. Press [Select] to activate choice.

Displayed only if duplex option is installed. Press [+] to display choice. Press [Select] to activate choice.

Displayed only if duplex option is installed, and only if 2-sided printing is enabled (ON*). Places top of backside image the same as the front

(LONG EDGE), or at opposite end (SHORT EDGE). Press [+] to display choice. Press [Select] to activate choice.

Press [+] to display choice. Press [Select] to activate choice.

Appears only if PostScript is installed, and then only if at least 13 Mbytes of memory are installed. Press [+] to display choice. Press [Select] to activate choice.

Press [+] to display memory size choice. Press [Select] to activate choice.

Press [+] to display choice. Press [Select] to activate choice.

Displayed only after a partially printed page eject. Press [+] to display choice. Press [Select] to activate choice.

after performing maintenance to

Asterisk (*) indicates printer default. Shaded menu items appear only if associated option or function is activated.

3-16 Operating Overview

Print Quality Menu

Table 3-10 Print Quality Menu Items

Print Quality Menu Items Item Choices Action Required

ECONOMODE= OFF *

RESOLUTION= 600 * / 3OO DOTS PER INCH Press [+] to display choice.

RESOLUTION ENHANCEMENT= OFF

PRINT DENSITY=

ON * 1 (Lighter)

2 3 * 4

5 (Darker)

Press [+] to display choice. Press [Select] to activate choice.

Press [Select] to activate choice. Press [+] to display choice.

Press [Select] to activate choice. To make print darker, chooe a higher number; to make it lighter, choose a lower number.

FUSING** Press Menu to display choice.

Asterisk (*) indicates printer default. ** Only with HP LaserJet 5Si Heavy Media printers

Press Items to select Fusing. Press + to save selectio n.

PostScript Menu

Table 3-11 PostScript Menu Items

PostScript Menu Items Item Choices Action Required

PRINT POSTSCRIPT ERRORS=

JAM RECOVERY= OFF *

Asterisk (*) indicates printer default. Shaded menu items appear only if associated option or function is activated.

OFF * ON

Press [+] to display choice. Press [Select] to activate choice.

Operating

Overview

Operating Overview 3-17

PCL Menu

Table 3-12 PCL Menu Items

PCL Menu Items Item Choices Action Required

SOURCE= INTERNAL * Press [+] to display choice.

NUMBER= 0..52 (0 *) Press [+] to display choice.

PTICH= 0.44..99.99 (10.00 *) Press [+] to display choice.

SYM SET= ROMAN-8 MS PUBL

ISO L1 MATH-8 ISI K2 PS MATH IS0 L5 VN MATH PC-8 PI FONT PC-8DN LEGAL PC-850 ISO 4 PC-852 IS0 6 PC-8 TK ISO 11 WIN L1 ISO 15 WIN L2 ISO 17 WIN L5 ISO 21 DESKTOP ISO 60 PS TEXT ISO 69 VN INTL WIN3.0 VN US

FORM= 5..128 LINES (60 LINES *) Press [+] to display choice.

Asterisk (*) indicates printer default. Shaded menu items appear only if associated option or function is activated.

Press [Select] to activate choice.

Press [Select] to activate choice. Press [+] to display choice.

Press [Select] to activate choice.

3-18 Operating Overview

I/O Menu

Caution

When changing memory configuration (Configuration Menu) or I/O Buffering, the printer will automatically reset. All fonts, macros, and downloaded data (except what is stored on the optional Disk Accessory) will be lost.

Table 3-13 I/O Menu Items

I/O Menu Items Item Choices Action Required

PARALLEL IO SPEED= HIGH *

LOW

IO TIMEOUT= xxx SECONDS

5 SECONDS * 10 SECONDS 15 SECONDS 20 SECONDS 30 SECONDS 60 SECONDS 120 SECONDS 180 SECONDS 240 SECONDS 300 SECONDS

IO BUFFER= AUTO *

OFF ON

IO SIZE=nnnnnK Displayed only if IO BUFFER=ON.

Press [+] to display choice. Press [Select] to activate choice.

xxx =any value between 5 to 300

(ex: 207) seconds as set by user with PJL. If timeout is reset to one of the standard values, the PJL value will disappear.

Press [+] to display choice. Press [Select] to activate choice.

Operating

Overview

Asterisk (*) indicates printer default. Shaded menu items appear only if associated option or function is activated.

Operating Overview 3-19

MIO 1 and 2 Menus

Note

Items displayed depend upon the MIO card that is installed in the printer.

Table 3-14 MIO 1 and 2 Menu Items

MIO 1 and 2 Menu Items Item Choices Action Required

Items displayed depend upon the MIO card that is installed in the printer.

Shaded menu items appear only if associated option or function is activated.

The actions required depend upon the items displayed on the Menu.

3-20 Operating Overview

Service Mode

The Service Mode should be used only by authorized service personnel. While in Service Mode, you can:

• Verify and set the Page Count and serial number. These are displayed on

the PCL Configuration Page.

• Set the Cold Reset Paper Size Default. (This sets the factory default paper

size to either Letter or A4.)

• Clear the ERR LOG.

Initiate the Service Mode as follows:

1 Hold down [Items] and [+] while powering ON the printer, until all lights are

illuminated and the Display is blank. (If the Display Panel reads INTERNAL TEST at this point, the keys were released too soon. Repeat this step until

successful.)

2 Press [Select]. The message SERVICE MODE is displayed briefly, then the

printer automatically begins an INTERNAL TEST. After several seconds, both Control Panel Indicators turn OFF. (The printer may display WARMING UP if it has not warmed up completely.) After the printer has warmed up and passed the self test, SERVICE MODE is displayed.

3 Press [Menus] once to display SERVICE MENU.

Operating

Overview

To exit the Service Mode press [On Line].

Operating Overview 3-21

Table 3-15 Service Mode Menu Items

Service Mode Menu

Items

PAGECOUNT= nnnnnnn Displays total number of pages printed by the printer.

MAINTCOUNT= nnnnnnn Displays the pagecount when the next preventive maintenance

S.N. = aaxxyynnnn

aa =A...Z xx =A...Z and 0...9

Item Choices Actions Required

Press [+] to step through values above cursor. Press [Select] to activate choice. Cursor will move to next digit.

Printer will set new number into NVRAM after least significant digit is selected. Pressing [Menus] or [Items] before completing all digits will cancel the new setting.

Pressing [Menus] returns printer to the main menu system. Pressing [Items] moves to the next menu item.

should be performed (maintenance should be performed every 350,000 pages).

Press [+] to step through values above cursor. Press [Select] to activate choice. Cursor will move to next digit.

Printer will set new number into NVRAM after least significant digit is selected. Pressing [Menus] or [Items] before completing all digits will cancel the new setting.

Pressing [Menus] returns printer to the main menu system. Pressing [Items] moves to the next menu item.

Displays printer serial number (also located on the printer back cover).

Press [+] to step through values above cursor. Press [Select] to activate choice. Cursor will move to next digit.

yy =0...9 and a...z nn =0...9

CLEAR ERROR LOG Press [Select] to activate.

COLD RESET PAPER= LETTER *

DIAGNOSTICS= OFF *

ON PAGECOUNT=nnnnnnn Press [+] to step through values above cursor.

Printer will set new number into NVRAM after least significant digit is selected. Pressing [Menus] or [Items] before completing all digits will cancel the new setting.

Pressing [Menus] returns printer to the main menu system. Pressing [Items] moves to the next menu item.

Printer returns to On Line (READY) when completed. Press [+] to change setting.

Press [Select] to activate choice. For factory test purposes ONLY.

DO NOT change.

Press [Select] to activate choice. Cursor will move to next digit. Printer will set new number into NVRAM after least significant

digit is selected. Pressing [Menus] or [Items] before completing all digits will cancel the new setting.

Pressing [Menus] returns printer to the main menu system. Pressing [Items] moves to the next menu item.

3-22 Operating Overview

Setting Page Count, Maintenance Count, and Serial Number

The page count, maintenance count, and printer serial numbers are stored in Non-Volatile Memory. PAGECOUNT is the total number of images printed by the printer, MAINTCOUNT is the pagecount when the next preventive maintenance should be performed (every 350,000 images), and S.N. is the printer serial number (also located on the printer back cover).

Note

LaserJet 5Si HM (C3124A) has a 250,000 images user preventive maintenance interval due to heavy media usage.

If it is necessary to replace the Formatter PCA, these numbers should be set to the current values to accurately reflect the age of the print engine. The procedures for setting these values are listed in Table 3-15.

Before removing the old Formatter PCA, print a PCL or PostScript Configuration Page to verify the current values, if possible.

If it is not possible to print a PCL Configuration Page, try to verify the values before replacing the Formatter PCA by following steps 1 through 3, below.

After verifying the page count, maintenance count, and printer serial number from the old Formatter PCA, replace it with the new PCA.

1 Enter the Service Mode as previously described in this chapter. 2 When SERVICE MODE is displayed, press [Menus] to access the Service Menu. 3 Press [Items to display PAGECOUNT=, MAINTCOUNT=, and S.N.=. 4 Enter the appropriate values for each item. 5 Press [On Line] to exit Service Mode.

Operating

Overview

Operating Overview 3-23

Setting the Cold Reset Default Paper Size

When replacing a Formatter PCA with a default paper size setting of A4, set COLD RESET PAPER= to A4.

1 Enter the Service Mode as previously described in this chapter. 2 Press [Menus] to access the Service Menu. 3 Press [Items to step through the menu until COLD RESET PAPER=LETTER* is

displayed.

4 Press [+] to toggle between Letter and A4 paper. 5 Press [Select] to activate your choice. 6 Press [On Line] to exit Service Mode. 7 Perform a Cold Reset to activate new choice.

PowerSave

An additional 10 second time interval is added to the PowerSave function in the Service Menu.

With Service Mode displayed, press [Menus] until CONFIGURATION MENU is displayed.

Note

If you have changed the PowerSave Delay, be sure to change it back to the user’s preference at the completion of the service call.

1 Press [Items] until POWER SAVE DELAY= is displayed. 2 Press [+] until the desired time interval is displayed. 3 Press [Select] to save your selection. 4 Press [Items] to return to the Service Mode. 5 Press [On Line] to place the printer back on line.

3-24 Operating Overview

Testing the Printer

PCL Configuration Page

When you print a PCL Configuration Page, the printer checks its internal controller and I/O interface, then prints two pages, one showing the overall printer configuration (see Figure 3-2), and one showing the current menu settings (see Figure 3-3). You can review these printouts to verify proper installation of installed accessories, options, and personalities.

1 Press [Menus] until TEST MENU appears. 2 Press [Items] until PCL CONFIGURATION PAGE appears. 3 Press [Select] to print the configuration pages.

Paper Path Test

You can test printer operation with the Paper Path Test in the Test Menu. It will print 1, 10, 100, or 500 (single or 2-sided) pages from any of the paper trays (or the Envelope feeder) and deliver them to a previously specified output bin.

First, select PAPER DESTINATION and 2-SIDED printing (if installed) in the Configuration Menu (Table 3-9) and then run the Paper Path Test from the Test Menu (Table 3-8).

Operating

Overview

Operating Overview 3-25

Configuration

Page

Figure 3-2 PCL Configuration Page

3-26 Operating Overview

Table 3-16 Key to Figure 3-2

1 Printer Information lists printer specific statistics.

Serial Number shows the printer serial number. Formatter Number shows the number of the formatter board. Firmware Datecode is an eight-digit date (YYYYMMDD) of the internal code. Processor Revision is the revision number of the firmware processor. Page Count shows the number of pages the printer has printed. Pages Since Last Power Cycle shows the number of pages the printer has printed since the

last time it was turned off. Pages Since Last Maintenance shows the number of pages the printer has printed since a

maintenance kit was installed.

2Installed Personalities and Options lists printer languages and all accessories that are

installed. Note: HP LaserJet 5Si HM will show 1 Meg ROM when Thermal Control PCA is installed. The

PostScript key SIMM uses the same identifier.

3 Error Log shows the number of errors currently in the error log and the last three errors that

occurred.

4 Memory shows the total amount of installed memory, and indicates the amount of available

memory for PCL applications (such as font downloading software). Information about the current I/O Buffering and Resource Saving configuration appears here. If the printer does not have enough memory installed to enable these two features, the amount of additional memory needed appears.

5 Security lists whether the control panel is locked, whether the control panel has a security

password, and if the Printer Hard Disk (optional in 5Si/5Si MX) has been write-protected.

6 Paper Handling Options lists the installed paper handling accessories. These accessories

may include the Duplex Unit, Envelope Feeder, 2000-Sheet Input Tray, Multi-Bin Mailbox, or Mailbox with Stapler.

Operating

Overview

Operating Overview 3-27

Figure 3-3 PCL Menu Map Page

3-28 Operating Overview

Table 3-17 Key to Figure 3-3

1 Tray Menu lists the current media types settings, and for Tray 1 or the Envelope Feeder, the

media size. 2 Job Control Menu shows the Cancel Job and Form Feed times. 3 Test Menu lists the different available printer tests. 4 PCL Menu lists the PCL font settings used. 5 Configuration Menu lists the current settings for the configuration items. 6 Print Quality Menu lists the current settings for the different print quality items. 7 PostScript Menu appears if the PostScript option is installed. This menu lists the current

settings for the two PostScript menu items. 8 IO Menu lists the current settings for the Parallel IO Speed, IO Timeout, and IO Buffer. 9 HP MIO Menu(s) list the current settings for the HP MIO option.

Operating

Overview

Operating Overview 3-29

Cold Reset

Cold reset clears all data from the printer memory and sets all the defaults (except Service Mode settings) back to the factory settings.

Caution

Performing a cold reset resets the JetDirect configuration. To avoid making changes to your configuration remove the JetDirect card before performing a cold reset.

If possible print a PCL and a PostScript Configuration Page prior to performing a Cold Reset. This will document current settings for later reference.

To perform a cold reset:

1 Turn the printer OFF. 2 While holding the [On Line] key down, turn the printer ON. RESTORING

FACTORY SETTINGS appears briefly on the display, then INTERNAL TEST appears. After about 30 seconds, RESTORING FACTORY SETTINGS again appears on the display, followed by READY. The On Line indicator also illuminates. The cold reset is now complete.

3-30 Operating Overview

Maintenance and Adjustments

Chapter Contents

Cleaning the Printer and Accessories . . . . . . . . . . . . . . . . . . . 4-3

Cleaning the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Cleaning Spilled Toner . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Preventative Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Tray 2 and 3 Adjustment Procedure . . . . . . . . . . . . . . . . . . . . 4-7

Tray 4 Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . 4-9

Maintenance and Adjustments 4-1

4-2 Maintenance and Adjustments

Cleaning the Printer and Accessories

To maintain the print quality and paper performance, thoroughly clean the printer and the paper handling accessories:

• Every time you change the toner cartridge.

• After printing approximately 15,000 images.

• Whenever print quality problems occur.

Clean the outside surfaces with a lightly water-dampened cloth. Clean the inside with only a dry, lint-free cloth. Use the guidelines listed in Table 4-1. Observe the warnings and cautions below.

WARNING!

Caution

Before you begin these steps, turn the printer OFF and unplug all power cords to avoid shock hazard.

Be careful when cleaning around the Fusing Assembly area. It may be HOT.

To avoid permanent damage to the toner cartridge, do not use ammonia-based cleaners on or around the printer.

Do not touch the transfer roller with your fingers. Contaminants on the roller can cause print quality problems.

Maintenance &

Adjustments

Maintenance and Adjustments 4-3

Cleaning the Printer

1 Before you begin these steps, turn the

printer OFF and unplug all cords.

2 Open the top cover of the printer and

remove the toner cartridge.

WARNING!

Avoid touching the adjacent fusing area. It may be HOT.

Caution

Do not touch the transfer roller (A). Skin oils on the roller can reduce print quality. If toner gets on your clothes, wipe it off with a dry cloth and wash your clothes in cold water. Hot water sets toner into fabric.

3 With a dry lint-free cloth, wipe any

residue from the paper path area, the registration roller (B), and the toner cartridge cavity. Use the brush supplied with the printer to remove residue from tight areas.

4 Replace the toner cartridge, close the

printer, reconnect all cables, and switch the printer ON.

4-4 Maintenance and Adjustments

Table 4-1

Cleaning the Printer

Component Cleaning Method/Notes

Outside Covers Use a water-dampened cloth. Do not use

solvents or ammonia-based cleaners.

Inside General Use a dry, lint free cloth. Remove all dust, spilled

toner, and paper particles.

Note

Paper Pickup, Feed, and Retard Rollers

Separation Pad Use a dry lint-free cloth. Registration Roller Use a dry lint-free cloth. Transfer Roller Use a dry, lint-free cloth. DO NOT TOUCH with

Fuser Assembly Use a water-dampened lint-free cloth.

Use a water-dampened lint-free cloth.

your fingers.

Cleaning Spilled Toner

Defective toner cartridges can develop leaks. Also, after a paper jam has occurred, there may be some toner remaining on the rollers and guides inside the printer. The pages that print immediately after the jam may pick up this toner.

Clean spilled toner with a cloth slightly dampened in cold water. Do not touch the Transfer Roller with the damp cloth or with your fingers. Do not use a vacuum cleaner unless it is equipped with a micro-fine particle filter.

If toner gets on your clothing, use cold water to remove it. Hot water sets toner stains into fabric.

Maintenance &

Adjustments

Maintenance and Adjustments 4-5

Preventative Maintenance

The user-conducted preventive maintenance cycle for this printer is every 350,000 images. The part numbers for the preventive maintenance kits are C3971A for the 100V printers, and C3972A for the 220V printers. The kits contain the following replacement parts: one Fusing Assembly, one Transfer Roller Assembly, and six Feed/Separation Rollers (two each for Trays 2, 3, and 4). Refer to Chapter 6 of this manual, and the instructions included in the kits for detailed replacement procedures.

The control panel message, PERFORM USER MAINTENANCE, indicates that the 350,000 maintenance is due. Upon completion of the maintenance procedures, go to the control panel Configuration Menu and set the SERVICE MESSAGE= to OFF.

Note

LaserJet 5Si HM (C3124A) has a 250,000 image user preventive maintenance interval due to heavy media usage.

4-6 Maintenance and Adjustments

Tray 2 and 3 Adjustment Procedure

The paper trays are mechanically aligned to the printer chassis at the factory. Perform this procedure ONLY if a paper tray has been replaced with a tray other than the original factory installed unit, or if the top margin of the image area is off-center more than 0.5 mm (0.02 in.) The adjustment procedure is identical for Trays 2 and 3.

Note

Figure 4-1

Before performing this procedure, check that the margins in your software application are properly set.

1 Load the paper tray being tested with letter or A4 size paper. 2 Perform a 1-sheet Paper Path Test from that tray (see Paper Path Test

under Test Menu in Chapter 3).

3 Refer to Figure 4-1 and compare distance A to distance B.

(Top Of Page)

Image Area Margins

Maintenance &

Adjustments

Maintenance and Adjustments 4-7

Note

Figure 4-2

Refer to Figure 4-2. Each adjustment notch changes the physical position of the tray by 0.5 mm (0.02 in). Moving the lever counter-clockwise moves the tray inward and increases distance A. Moving the lever clockwise moves the tray outward and decreases distance A.

Tray 2/3 Position Adjustment

4 If distance A is greater than distance B by more than 0.5 mm (0.02 in),

move the adjustment lever clockwise one notch.

5 If distance A is less than distance B by more than 0.5 mm (0.02 in), move

the adjustment lever counter-clockwise one notch.

6 After adjusting:

• Re-install the tray.

• Re-run the Paper Path Test.

• Recheck the measurements.

• Re-adjust as necessary.

4-8 Maintenance and Adjustments

Figure 4-3

Tray 4 Adjustment Procedure

In some cases, the registration from Tray 4 (HCI) causes print to start too close to the edge of the paper. This situation is not a typical occurrence. In most cases the Tray 4 offset is fine. Although this may or may not be within specification, it is unacceptable to some users. Perform the following adjustment procedure to correct the situation.

1 With the HCI stand-alone, remove left, right and rear covers from the HCI. 2 Remove the vertical transfer unit. 3 Open the HCI paper tray. 4 Loosen both screws that support the paper tray locking bracket on the right

side of the HCI (see Figure 4-3).

Locking Bracket Hole

Screw 1

Locating Pin

Screw 2

HCI Closing Lever

5 Locate the bracket hole and pin at the middle (right side) (see Figure 4-3). 6 Slide the bracket so that the locating pin is positioned at the middle of the

Locking Bracket

bracket hole.

7 Tighten both screws. 8 Loosen both screws that support the paper tray locking bracket on the left

side of the HCI.

9 Locate the bracket hole and pin at the middle (left side).

Slide the bracket so the locating pin is positioned at the middle of the bracket hole.

(continued on next page)

Maintenance and Adjustments 4-9

Maintenance &

Adjustments

10 Tighten both screws. 11 Reassemble the vertical transfer unit. 12 Make sure all the cables (vertical transfer unit and paper deck drive

assembly) are reconnected.

13 Reinstall left, right, and rear covers to the HCI.

Note

The locating pin position at the middle could still be unacceptable for some customer’s applications. If so, repeat the procedure by moving the locating pin further back and testing the margin obtained.

4-10 Maintenance and Adjustments

Functional Overview

Chapter Contents

Basic Printer Functionality . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Printer Functional Block Diagram . . . . . . . . . . . . . . . . . . 5-4

Power Distribution System . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

AC Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Overcurrent/Overvoltage Protection . . . . . . . . . . . . . . . . . 5-6

High Voltage Power Distribution . . . . . . . . . . . . . . . . . . . 5-7

Formatter System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

DC Controller System . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Laser and Scanner Drive . . . . . . . . . . . . . . . . . . . . . . . 5-10

Paper Motion Monitoring and Control . . . . . . . . . . . . . . . . 5-10

Clutches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Engine Test Microswitch . . . . . . . . . . . . . . . . . . . . . . . 5-11

Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Image Formation System . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Toner Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Drum Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Drum Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Image Writing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Image Developing . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Image Transferring and Media Separation . . . . . . . . . . . . . . 5-18

Image Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Paper Paths and Components . . . . . . . . . . . . . . . . . . . . . . . 5-20

Printer, Duplex Unit, and Envelope Feeder . . . . . . . . . . . . . 5-20

2000-Sheet Input Unit (Tray 4) Components . . . . . . . . . . . . 5-23

2000-Sheet Input Unit Operation . . . . . . . . . . . . . . . . . . . 5-26

Multi-Bin Mailbox Components . . . . . . . . . . . . . . . . . . . . 5-28

Multi-Bin Mailbox Operation . . . . . . . . . . . . . . . . . . . . . 5-31

Stapling Unit Components . . . . . . . . . . . . . . . . . . . . . . 5-33

Mailbox with Stapler Operation . . . . . . . . . . . . . . . . . . . . 5-36

Main Functional Cycles of the Stapler . . . . . . . . . . . . . . . . 5-36

Functional Overview 5-1

Printer Input Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38

Paper Size Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38

Printing from Trays 2 and 3 . . . . . . . . . . . . . . . . . . . . . . . . 5-38

Printing from Tray 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-39

Printing from the Envelope Feeder . . . . . . . . . . . . . . . . . . . . 5-39

Printing from Tray 4 (2000-Sheet Input Unit) . . . . . . . . . . . . . . 5-39

Two-Sided Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-39

Paper Jam Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40

Printer Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40

5-2 Functional Overview

Basic Printer Functionality

This chapter presents a functional overview of the printer and the printing processes. The following topics, functions, and systems are discussed:

• Basic Printer Functionality

• Power Distribution System

• Formatter System

• DC Controller System

• Image Formation System

• Paper Paths and Components

Functional Overview 5-3

Functional

Overview

MediaPath Signal/ControlPath

Control

Panel

Printer Functional Block Diagram

Figure 5-1 is a functional block diagram of the printer showing the basic paths for signal, control, and media.

FormatterSystem

Memory

LVPS

Fan

SIMMS

Personality

SIMMS

DCControllerSystem

Disk

Accessory

External

Paper

Handling

PCA

Parallel

Port

MIO#1

MIO#2

Assy.

Duplex

Unit

Fan

Laser/

Scanner

HVPS

Toner

Cartridge

Face-Down

Bin

Face-Up/

LeftOutput

Bin

Multi-Bin

Mailbox/

Mailboxw/stapler

Fan

Delivery

Unit

Fusing

Diverter

{

FunctionalBlockDiagram

Figure 5-1 Printer Functional Block Diagram

Registration

{

Assembly

Tray1(MP)

Envelope

Feeder

Paper

Input

Unit

PaperInputSystemImageTransferPaperOutputSystem

Tray2

Tray3 Tray4

{

5-4 Functional Overview

Power Distribution System

The AC and DC power supply circuits are contained in the Low Voltage Power Supply (LVPS). The high voltages required for image formation are generated by the High Voltage Power Supply (HVPS). The Low Voltage Power Supply and Distribution System is illustrated in Figure 5-2. Refer to the Reference Diagrams at the end of Chapter 7 for more details.

Figure 5-2 Low Voltage Power Distribution System

Functional Overview 5-5

Functional

Overview

Figure 5-3

AC Power Distribution

The AC power circuitry supplies AC voltage whenever the power cord is connected, and the power switch is ON. A toner cartridge must be installed and the top access door must be closed before AC voltage is supplied to the DC power circuits or the Fusing Assembly.

Overcurrent/Overvoltage Protection

There are two overcurrent/overvoltage devices in this printer: The resettable circuit breaker (CB101) shuts off AC input power to the

LVPS in case of an AC overcurrent condition. To reset, remove the LVPS and press in the circuit breaker button (Figure 5-3, callout 1).

Fuse 101 interrupts AC input power to the +24V DC and +5V DC power circuits. To check or replace the fuse (Figure 5-3, callout 2) you must remove the LVPS.

Low Voltage Power Supply

5-6 Functional Overview

Figure 5-4

High Voltage Power Distribution

The High Voltage Power Supply (HVPS, see Figure 5-4) applies a DC biased AC voltage to the primary charging roller and the developing roller, and a programmed DC voltage (depending upon the phase of the printing process) to the Transfer Roller. Refer to the General Timing Diagram (Figure 5-22) at the end of this chapter for HVPS timing information.

Toner Cartridge Detection

A toner level detector inside the toner cartridge is connected to the HVPS when the toner cartridge is installed. If the toner level drops below a predefined level, the TONER LOW message will appear on the display panel. If the toner cartridge is missing, INSTALL TONER CARTRIDGE will be displayed.

Print Density Adjustment

The HVPS also controls the image density by varying the voltages applied to the developing cylinder in the toner cartridge. These voltages determine the amount of toner applied to the photosensitive drum. Print density is adjusted from the control panel (Print Quality Menu), or from the driver software.

Primary Charging Roller

Drum Ground

Post Transfer Bias

Transfer Roller

High Voltage Power Supply Contacts

Toner Registration/ Toner Sensor

Developing Roller Bias

Fuser Bias

Functional Overview 5-7

Functional

Overview

Formatter System

The Formatter PCA is responsible for the following:

• Controlling the PowerSave mode.

• Receiving and processing print data from the various printer interfaces.

• Monitoring Control Panel inputs and relaying printer status information

(through the Control Panel and the Bi-Directional I/O).

• Developing and coordinating data placement and timing with the print engine.

• Storing font information.

• Communicating with the host computer through the Bi-Directional Interface.

The Formatter PCA receives a print job from the Bi-Tronics Interface and separates it into image information and instructions which control the printing process. The DC Controller synchronizes the Image Formation System with the Paper Input and Output Systems, and then signals the Formatter to send the print image data. The Formatter sends the print image data (dots) in the form of a VIDEO signal to start the printing process.

The Formatter PCA also provides the electrical interface and mounting locations for two MIO cards, additional memory SIMMs, the PostScript SIMM, the Disk Accessory, and the External Paper Handling controller PCA for the 2000-Sheet Input Unit, and the Multi-Bin Mailbox/Mailbox With Stapler.

PowerSave

This user-adjustable feature (Configuration Menu) conserves power by shutting down the fuser and exhaust fans after the printer has been idle for 15 minutes, 30 minutes, 1, 2, or 3 hours. A 10 second interval is also available in Service Mode. The printer retains all printer settings, downloaded fonts, and macros while in PowerSave mode. The default setting is PowerSave ON, with a 1-hour idle time. (PowerSave can also be turned OFF from the control panel.)

The printer exits PowerSave mode and enters the warm up cycle when any of the following occurs:

• A print job, valid data, or a PML or PJL command is received at the

parallel port or an MIO card.

• A Control Panel key is pressed.

• When any printer door (except the front access door) is opened and then

closed.

• A paper tray is opened and then closed.

• When the Engine Test microswitch is pressed.

5-8 Functional Overview

Note

Printer error messages override the PowerSave message. The printer will enter PowerSave mode at the appropriate time, but the error message will continue to be displayed.

Resolution Enhancement (REt)

The 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-controllable (ON or OFF) from the control panel, or from some software applications. The default setting is ON.

Note

Figure 5-5

REt settings sent from software applications or printer drivers override the control panel settings.

EconoMode

The EconoMode setting uses approximately 75% less toner than standard mode printing by reducing the dot density. However, EconoMode does not extend toner cartridge component life. EconoMode, which can also be thought of as “draft mode,” is user selectable via the control panel (Print Quality Menu) and some software applications. The default setting is OFF.

EconoMode does not affect print speed, memory usage, or extend toner cartridge life.

Normal Mode vs EconoMode

Functional Overview 5-9

Functional

Overview

DC Controller System

The following systems and functions are controlled by the DC Controller PCA:

• DC Power Distribution (+5V DC, +12V DC, +24V DC)

• Laser and Scanner Drive

• Paper Motion Monitoring and Control (photosensors and flags)

• Clutches (registration, tray pickup, and Tray 1 feed)

• Engine Test

• Motors (Main Drive, Scanner, and Fans)

Figure 5-2 shows the Low Voltage Power Supply and Distribution System. Refer to the wiring diagrams at the end of Chapter 7 for detailed listings of the DC Controller inputs and outputs.

Laser and Scanner Drive

Based on information received from the Formatter, the DC Controller sends signals to the Laser/Scanner Assembly to modulate the laser diode ON and OFF, and to drive the Laser/Scanner motor. Refer to “Image Formation System” later in this chapter for more information.

Paper Motion Monitoring and Control

The DC Controller PCA controls paper motion by continuously monitoring the various paper sensors, and coordinating paper movement with the other print processes.

Clutches

The drive signals for the Registration Assembly Clutch (CL1), Paper Input Unit Clutch (CL2), and the Tray 1 Feed Clutch, are provided by the DC Controller PCA. The control signals for the clutches in the 2000-Sheet Input Unit and Multi-Bin Mailbox/Mailbox With Stapler are provided by the External Paper Handling PCA mounted on the Formatter Assembly.

5-10 Functional Overview

Engine Test Microswitch

The Engine Test Microswitch, located on the DC Controller PCA, is activated manually through the square access hole at the right rear of the printer (see Figure 6-4). This switch causes the print engine to perform an internal self test diagnostic which bypasses the Formatter PCA and then prints a full page of black parallel lines. This test is useful for troubleshooting printer problems because it isolates the print engine from the Formatter PCA. The engine test printout prints from Tray 3 and can be activated with the Formatter PCA removed. For more information, see Engine Test in Chapter 7.

Motors

Refer to the General Timing Diagram (Figure 5-22) at the end of this chapter for specific timing details for the printer motors.

The Main Motor, MT1 is controlled by the DC Controller PCA. The Main Motor drives the Main Gear Assembly and rotates during the Initial Rotation period (following power-ON), the Print period, the Last Rotation Period, or whenever the printer front door is opened and closed.

The Scanner Motor is controlled and monitored by the DC Controller. It rotates the scanner mirror during the Initial Rotation period and the Print period.

The Fan Motors are controlled and monitored by the DC Controller PCA. All four fans operate at full speed during the printing modes. All four fans turn off in the PowerSave mode after the Fuser cools down.

The drive signal for the Tray 2 and 3 Paper Pick-up Motor, SMT1, is provided by the DC Controller PCA through the PIU PCA mounted on the right side of the Paper Input Unit (PIU). When the job instructions call for paper to be supplied by Tray 2, SMT1 rotates in a forward direction and drives the Pick-Up roller for Tray 2. When paper is supplied by Tray 3, SMT1 rotates in the reverse direction and drives the Pick-Up roller for Tray 3.

Functional Overview 5-11

Functional

Overview

Image Formation System

Laser printing requires the interaction of several different technologies (such as electronics, optics, and electrophotographics) to provide a printed page. Each process functions independently and must be coordinated with the other printer processes. The image formation process consists of six steps:

1 Drum Cleaning 2 Drum Conditioning 3 Image Writing 4 Image Developing 5 Image Transferring and Media Separation 6 Image Fusing

Image Formation Block Diagram

Figure 5-6 Image Formation Block Diagram

5-12 Functional Overview

Toner Cartridge

The toner cartridge is the “heart” of the Image Formation System. It houses the cleaning, conditioning, and developing steps of the process. The toner cartridge contains the photosensitive drum, primary charging roller, developing station, toner cavity, and cleaning station. Including the components that wear, degrade, or are consumed in a customer replaceable toner cartridge eliminates the need for a service call when replacement is required.

Toner Cartridge/High Voltage Power Supply Contacts

The toner cartridge has three contacts which route voltage from the HVPS PCA. They are:

• Upper: Primary Charge

• Middle: Developing Bias

• Lower: Toner Sensing/Toner Recognition

The Photosensitive Drum

The image from the Laser/Scanner Assembly is written on the drum surface, developed, and transferred to the media. The drum is an aluminum cylinder. The aluminum base of the photosensitive drum is electrically connected to ground potential. The outside of the cylinder is coated with a layer of non-toxic organic-photoconductive material (OPC). The OPC material becomes electrically conductive when exposed to light. The drum surface is first cleaned of excess toner, then conditioned with a uniform negative charge. When an area on the drum surface is exposed to the laser light beam, the negative charge in that area is conducted to the ground potential of the drum base and thus becomes more positive. Areas not exposed to light remain non-conductive and maintain their negative charge.

Figure 5-7

Photosensitive Drum

Functional Overview 5-13

Functional

Overview

Figure 5-8

Drum Cleaning

The cleaning blade inside the toner cartridge is in contact with the surface of the drum at all times. As the drum rotates during printing, excess toner is removed from the drum surface and stored in the waste toner receptacle inside the toner cartridge.

Drum Cleaning

5-14 Functional Overview

Figure 5-9

Drum Conditioning

After the drum is physically cleaned, it is conditioned by applying a uniform negative charge across the surface of the drum with the primary charging roller, located in the toner cartridge. The primary charging roller is coated with conductive rubber, charged with an AC current which erases any residual charges, and produces a uniform drum surface potential. The AC current is centered around a negative DC bias which changes according to the Print Density setting.

Primary Charging Roller

Functional Overview 5-15

Functional

Overview

EXP Computer C4077-90960 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual