HP LaserJet M1120 mfp service manual

HP LaserJet M1120 MFP Series

Service Manual

HP LaserJet M1120 MFP Series

Service Manual

Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.

The information contained herein is subject to change without notice.

The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

Edition 1, 1/2008

Part number: CB537-90945

Trademark Credits

Adobe

, Acrobat®, and PostScript® are

trademarks of Adobe Systems Incorporated.

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, Windows®, and Windows NT

are U.S. registered trademarks of Microsoft Corporation.

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is a registered trademark of The Open

Group.

Table of contents

1 Product information

Quick access to product information .................................................................................................... 2

Product comparison ............................................................................................................................. 3

Product features ................................................................................................................................... 4

Product walkaround .............................................................................................................................. 5

Front view ............................................................................................................................ 5

Back view ............................................................................................................................. 5

Interface ports ...................................................................................................................... 6

Serial number and model number location .......................................................................... 6

Software description ............................................................................................................................. 7

Supported operating systems .............................................................................................. 7

Supported printer drivers ..................................................................................................... 7

Software included with the product ...................................................................................... 7

Easy installation for Windows ............................................................................. 7

Advanced installation .......................................................................................... 8

Macintosh software ............................................................................................. 8

Software for Windows .......................................................................................................................... 9

Embedded Web server (network models only) .................................................................... 9

Status Alerts software .......................................................................................................... 9

Other Windows components and utilities ............................................................................. 9

Software for Macintosh ....................................................................................................................... 10

Embedded Web server (network models only) .................................................................. 10

HP Director ........................................................................................................................ 10

Uninstall software ............................................................................................................................... 11

Windows ............................................................................................................................ 11

Macintosh .......................................................................................................................... 11

Media specifications ........................................................................................................................... 12

Supported paper and print media sizes ............................................................................. 12

Supported paper types and tray capacity .......................................................................... 13

2 Installation

Site preparations ................................................................................................................................ 16

Operating environment ...................................................................................................... 16

Minimum system requirements .......................................................................................... 17

What was in the box ........................................................................................................................... 18

Install input devices ............................................................................................................................ 19

Priority input tray ................................................................................................................ 19

Tray 1 ................................................................................................................................. 20

Install supplies .................................................................................................................................... 21

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3 Maintenance

Manage supplies ................................................................................................................................ 24

Clean the product ............................................................................................................................... 28

Management tools .............................................................................................................................. 30

4 Operational theory

Basic operation ................................................................................................................................... 34

Scanner functions and operation ........................................................................................................ 36

Internal components (base unit) ......................................................................................................... 38

Engine control system ........................................................................................................................ 39

Laser/scanner system ........................................................................................................................ 41

Pickup/feed/delivery system ............................................................................................................... 42

Image-formation system .................................................................................................................... 43

Install the print cartridge .................................................................................................... 21

Life expectancies of supplies ............................................................................................. 24

Check and order supplies .................................................................................................. 24

Store supplies .................................................................................................................... 24

Replace supplies ............................................................................................................... 25

Print cartridge .................................................................................................... 25

HP policy on non-HP supplies ........................................................................................... 26

HP fraud hotline ................................................................................................................. 27

Clean the exterior .............................................................................................................. 28

Clean the flatbed scanner glass ........................................................................................ 28

Clean the lid backing ......................................................................................................... 28

Clean the paper path ......................................................................................................... 29

Information pages .............................................................................................................. 30

Embedded Web server ...................................................................................................... 30

Features ............................................................................................................ 31

Sequence of operation for the base unit ............................................................................ 34

Scanner functions ............................................................................................................. 36

Scanner operation ............................................................................................................. 37

5 Removal and replacement

Removal and replacement strategy .................................................................................................... 48

Introduction ........................................................................................................................ 48

Removal and replacement warnings, cautions, notes, and tips ........................ 48

Electrostatic discharge ...................................................................................... 49

Required tools ................................................................................................... 49

Before performing service ................................................................................................. 49

After performing service ..................................................................................................... 50

Post-service tests .............................................................................................................. 51

Test 1 (print-quality test) ................................................................................... 51

Test 2 (copy-quality test) ................................................................................... 51

Parts removal order ........................................................................................................... 52

Scanner assembly .............................................................................................................................. 53

Link assemblies and scanner support-frame spring .......................................................... 53

Scanner lid ......................................................................................................................... 56

Control-panel overlay ......................................................................................................... 57

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Control-panel assembly ..................................................................................................... 58

Scanner assembly ............................................................................................................. 60

Product base ...................................................................................................................................... 65

Print cartridge .................................................................................................................... 65

Separation pad .................................................................................................................. 66

Pickup roller ....................................................................................................................... 67

Scanner cushions .............................................................................................................. 70

Media input tray ................................................................................................................. 71

Transfer roller .................................................................................................................... 73

Side covers ........................................................................................................................ 74

Print-cartridge door ............................................................................................................ 76

Rear cover and fuser cover ............................................................................................... 77

Front cover ......................................................................................................................... 79

Formatter ........................................................................................................................... 81

Power supply ..................................................................................................................... 82

Scanner support frame ...................................................................................................... 86

Laser/scanner assembly .................................................................................................... 89

Main motor ......................................................................................................................... 93

Fuser .................................................................................................................................. 96

Paper-pickup assembly ................................................................................................... 100

Drive-gear assembly and drive belt ................................................................................. 103

6 Problem solve

Problem-solving checklist ................................................................................................................. 106

Control-panel messages .................................................................................................................. 108

Clear jams ........................................................................................................................................ 111

Print problems .................................................................................................................................. 118

Scan problems ................................................................................................................................. 124

Copy problems ................................................................................................................................. 127

Alert and warning messages .......................................................................................... 108

Alert and warning message tables .................................................................. 108

Critical error messages .................................................................................................... 109

Critical error message-tables .......................................................................... 109

Causes of jams ................................................................................................................ 111

Where to look for jams ..................................................................................................... 112

Clear jams from the input-tray areas ............................................................................... 112

Clear jams from the output bin ......................................................................................... 115

Clear jams from the print-cartridge area .......................................................................... 116

Avoid repeated jams ....................................................................................................... 117

Print-quality problems ...................................................................................................... 118

Improve print quality ........................................................................................ 118

Print-quality settings ....................................................................... 118

Identify and correct print defects ..................................................................... 119

Print-quality checklist ...................................................................... 119

General print-quality issues ............................................................ 120

Solve scanned-image problems ...................................................................................... 124

Scan-quality problems ..................................................................................................... 126

Prevent problems ............................................................................................ 126

Solve scan-quality problems ........................................................................... 126

Prevent problems ............................................................................................................. 127

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Image problems ............................................................................................................... 127

Media-handling problems ................................................................................................ 128

Performance problems .................................................................................................... 130

Functional checks ............................................................................................................................. 131

Engine test page .............................................................................................................. 131

Drum rotation test ............................................................................................................ 131

Half self-test functional check .......................................................................................... 132

Perform a half self-test check .......................................................................... 132

Perform other checks ..................................................................................... 132

Heating element check .................................................................................................... 133

High-voltage contacts check ............................................................................................ 133

Check the print-cartridge contacts ................................................................ 133

Check the high-voltage connector assembly .................................................. 134

Service-mode functions .................................................................................................................... 135

NVRAM initialization ........................................................................................................ 135

Super NVRAM initialization .............................................................................................. 135

Secondary service menu ................................................................................................. 135

Problem-solving tools ....................................................................................................................... 137

Product information pages and reports ............................................................................ 137

Configuration page .......................................................................................... 137

Demo page ...................................................................................................... 137

Menu map ........................................................................................................................ 137

Service menu ................................................................................................................... 13 8

Restore the factory-set defaults ...................................................................... 138

Clean the paper path ....................................................................................... 138

Archive print .................................................................................................... 138

Problem-solving diagrams ................................................................................................................ 140

Repetitive image defects ................................................................................................. 140

Interface ports .................................................................................................................. 141

Formatter connectors ....................................................................................................... 142

ECU connectors ............................................................................................................... 143

Solenoid and motor .......................................................................................................... 144

Rollers .............................................................................................................................. 145

Sensors ............................................................................................................................ 146

Major components ........................................................................................................... 147

PCAs (base unit) .............................................................................................................. 148

Circuit diagram ................................................................................................................. 149

Firmware updates ............................................................................................................................. 150

7 Parts

Ordering information ......................................................................................................................... 152

Supplies and hinge tool .................................................................................................................... 152

Cable and interface accessories ...................................................................................................... 152

Whole-unit replacement ................................................................................................................... 153

Control-panel overlays ..................................................................................................................... 157

Supplementry documentation and support ....................................................................................... 160

Parts lists and diagrams ................................................................................................................... 162

Types of screws ............................................................................................................... 163

Scanner assemblies ......................................................................................................................... 164

Assemblies ....................................................................................................................................... 166

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External covers and panels .............................................................................................................. 168

Internal components (1 of 3) ............................................................................................................ 170

Internal components (2 of 3) ............................................................................................................ 172

Internal components (3 of 3) ............................................................................................................ 174

Alphabetical parts list ....................................................................................................................... 176

Numerical parts list ........................................................................................................................... 178

Appendix A Service and support

Hewlett-Packard limited warranty statement .................................................................................... 181

Customer self repair warranty service .............................................................................................. 182

Print cartridge limited warranty statement ........................................................................................ 183

Customer support ............................................................................................................................. 184

HP maintenance agreements ........................................................................................................... 184

Repacking the device ...................................................................................................... 184

Extended warranty ........................................................................................................... 184

Appendix B Specifications

Physical specifications ..................................................................................................................... 186

Electrical specifications .................................................................................................................... 186

Power consumption .......................................................................................................................... 186

Environmental specifications ............................................................................................................ 187

Acoustic emissions ........................................................................................................................... 187

Appendix C Regulatory information

FCC compliance ............................................................................................................................... 190

Environmental product stewardship program ................................................................................... 190

Protecting the environment .............................................................................................. 190

Ozone production ............................................................................................................ 190

Power consumption ......................................................................................................... 190

Toner consumption .......................................................................................................... 190

Paper use ........................................................................................................................ 190

Plastics ............................................................................................................................ 191

HP LaserJet print supplies ............................................................................................... 191

Return and recycling instructions ..................................................................................... 191

United States and Puerto Rico ........................................................................ 191

Non-US returns ............................................................................................... 192

Paper ............................................................................................................................... 192

Material restrictions .......................................................................................................... 192

Disposal of waste equipment by users in private households in the European Union .... 192

Material Safety Data Sheet (MSDS) ................................................................................ 192

For more information ....................................................................................................... 192

Declaration of conformity .................................................................................................................. 194

Safety statements ............................................................................................................................. 195

Laser safety ..................................................................................................................... 195

Canadian DOC regulations .............................................................................................. 195

EMI statement (Korea) ..................................................................................................... 195

Multiple returns (two to eight cartridges) ........................................ 191

Single returns ................................................................................. 191

Shipping .......................................................................................... 191

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Laser statement for Finland ............................................................................................. 196

Substances table (China) ................................................................................................ 196

Index ................................................................................................................................................................. 199

viii ENWW

List of tables

Table 1-1 Product guides ................................................................................................................................... 2

Table 1-2 Supported paper and print media sizes ........................................................................................... 12

Table 1-3 Supported envelopes and postcards ............................................................................................... 12

Table 1-4 Supported paper types and tray capacity ........................................................................................ 13

Table 4-1 Sequence of operation ..................................................................................................................... 34

Table 4-2 Power-on sequence ......................................................................................................................... 35

Table 6-1 Repetitive image defects ................................................................................................................ 140

Table 6-2 Formatter connectors ..................................................................................................................... 142

Table 6-3 ECU connectors ............................................................................................................................. 143

Table 6-4 Solenoid and motor ........................................................................................................................ 144

Table 6-5 Rollers ............................................................................................................................................ 145

Table 6-6 Sensors .......................................................................................................................................... 146

Table 6-7 Major components .......................................................................................................................... 147

Table 6-8 PCAs (base unit) ............................................................................................................................ 148

Table 7-1 Whole-unit replacement, product bundle CC537A ......................................................................... 153

Table 7-2 Whole-unit replacement, product bundle CC459A ......................................................................... 155

Table 7-3 Control-panel overlays, HP LaserJet M1120 ................................................................................. 157

Table 7-4 Control-panel overlays, HP LaserJet M1120n ............................................................................... 158

Table 7-5 Documentation (print on demand) ................................................................................................. 160

Table 7-6 Scanner assemblies ....................................................................................................................... 165

Table 7-7 Assemblies ..................................................................................................................................... 167

Table 7-8 External covers and panels ............................................................................................................ 169

Table 7-9 Internal components (1 of 3) .......................................................................................................... 171

Table 7-10 Internal components (2 of 3) ........................................................................................................ 173

Table 7-11 Internal components (3 of 3) ........................................................................................................ 175

Table 7-12 Alphabetical parts list ................................................................................................................... 176

Table 7-13 Numerical parts list ....................................................................................................................... 178

Table B-1 Physical specifications ................................................................................................................... 186

Table B-2 Electrical specifications .................................................................................................................. 186

Table B-3 Power consumption (average, in watts) ....................................................................................... 186

Table B-4 Environmental specifications ........................................................................................................ 187

Table B-5 Acoustic emissions ....................................................................................................................... 187

Table C-1

有毒有害物表 ............................................................................................................................. 196

󳊝

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List of figures

Figure 4-1 System block diagram ..................................................................................................................... 34

Figure 4-2 Optical system (1 of 2) .................................................................................................................... 36

Figure 4-3 Optical system (2 of 2) .................................................................................................................... 37

Figure 4-4 Cross-section of printer ................................................................................................................... 38

Figure 4-5 Engine control system ..................................................................................................................... 39

Figure 4-6 Engine-control-system circuit diagram ............................................................................................ 40

Figure 4-7 Laser/scanner system ..................................................................................................................... 41

Figure 4-8 Pickup/feed/delivery system ........................................................................................................... 42

Figure 4-9 Image-formation system ................................................................................................................. 43

Figure 4-10 Primary charging ........................................................................................................................... 43

Figure 4-11 Developing .................................................................................................................................... 44

Figure 4-12 Transfer ......................................................................................................................................... 45

Figure 4-13 Separation ..................................................................................................................................... 45

Figure 4-14 Fusing ........................................................................................................................................... 46

Figure 4-15 Drum cleaning ............................................................................................................................... 46

Figure 5-1 Phillips and pozidrive screwdriver comparison ............................................................................... 49

Figure 5-2 Parts removal order ........................................................................................................................ 52

Figure 5-3 Remove the link assemblies and scanner support-frame spring (1 of 4) ........................................ 53

Figure 5-4 Remove the link assemblies and scanner support-frame spring (2 of 4) ........................................ 54

Figure 5-5 Remove the link assemblies and scanner support-frame spring (3 of 4) ........................................ 54

Figure 5-6 Remove the link assemblies and scanner support-frame spring (4 of 4) ........................................ 55

Figure 5-7 Remove the scanner lid (1 of 2) ...................................................................................................... 56

Figure 5-8 Remove the scanner lid (2 of 2) ...................................................................................................... 56

Figure 5-9 Remove the control-panel overlay .................................................................................................. 57

Figure 5-10 Remove the control-panel assembly (1 of 3) ................................................................................ 58

Figure 5-11 Remove the control-panel assembly (2 of 3) ................................................................................ 58

Figure 5-12 Remove the control-panel assembly (3 of 3) ................................................................................ 59

Figure 5-13 Remove the scanner assembly (1 of 10) ...................................................................................... 60

Figure 5-14 Remove the scanner assembly (2 of 10) ...................................................................................... 60

Figure 5-15 Remove the scanner assembly (3 of 10) ...................................................................................... 61

Figure 5-16 Remove the scanner assembly (4 of 10) ...................................................................................... 61

Figure 5-17 Remove the scanner assembly (5 of 10) ...................................................................................... 62

Figure 5-18 Remove the scanner assembly (6 of 10) ...................................................................................... 62

Figure 5-19 Remove the scanner assembly (7 of 10) ...................................................................................... 63

Figure 5-20 Remove the scanner assembly (8 of 10) ...................................................................................... 63

Figure 5-21 Remove the scanner assembly (9 of 10) ...................................................................................... 64

Figure 5-22 Remove the scanner assembly (10 of 10) .................................................................................... 64

Figure 5-23 Remove the print cartridge (1 of 2) ............................................................................................... 65

Figure 5-24 Remove the print cartridge (2 of 2) ............................................................................................... 65

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Figure 5-25 Remove the separation pad (1 of 2) ............................................................................................. 66

Figure 5-26 Remove the separation pad (2 of 2) ............................................................................................. 66

Figure 5-27 Remove the pickup roller (1 of 5) .................................................................................................. 67

Figure 5-28 Remove the pickup roller (2 of 5) .................................................................................................. 67

Figure 5-29 Remove the pickup roller (3 of 5) .................................................................................................. 68

Figure 5-30 Remove the pickup roller (4 of 5) .................................................................................................. 68

Figure 5-31 Remove the pickup roller (5 of 5) .................................................................................................. 69

Figure 5-32 Installing the scanner cushions ..................................................................................................... 70

Figure 5-33 Remove the media input tray (1 of 3) ........................................................................................... 71

Figure 5-34 Remove the media input tray (2 of 3) ........................................................................................... 71

Figure 5-35 Remove the media input tray (3 of 3) ........................................................................................... 72

Figure 5-36 Remove the transfer roller ............................................................................................................ 73

Figure 5-37 Remove the side covers (1 of 4) ................................................................................................... 74

Figure 5-38 Remove the side covers (2 of 4) ................................................................................................... 74

Figure 5-39 Remove the side covers (3 of 4) ................................................................................................... 75

Figure 5-40 Remove the side covers (4 of 4) ................................................................................................... 75

Figure 5-41 Remove the print-cartridge door (1 of 2) ....................................................................................... 76

Figure 5-42 Remove the print-cartridge door (2 of 2) ....................................................................................... 76

Figure 5-43 Remove the rear cover and fuser cover (1 of 3) ........................................................................... 77

Figure 5-44 Remove the rear cover and fuser cover (2 of 3) ........................................................................... 77

Figure 5-45 Remove the rear cover and fuser cover (3 of 3) ........................................................................... 78

Figure 5-46 Remove the front cover (1 of 4) .................................................................................................... 79

Figure 5-47 Remove the front cover (2 of 4) .................................................................................................... 79

Figure 5-48 Remove the front cover (3 of 4) .................................................................................................... 80

Figure 5-49 Remove the front cover (4 of 4) .................................................................................................... 80

Figure 5-50 Remove the formatter ................................................................................................................... 81

Figure 5-51 Remove the power supply (1 of 7) ................................................................................................ 82

Figure 5-52 Remove the power supply (2 of 7) ................................................................................................ 82

Figure 5-53 Remove the power supply (3 of 7) ................................................................................................ 83

Figure 5-54 Remove the power supply (4 of 7) ................................................................................................ 83

Figure 5-55 Remove the power supply (5 of 7) ................................................................................................ 84

Figure 5-56 Remove the power supply (7 of 7) ................................................................................................ 84

Figure 5-57 Remove the power supply (7 of 7) ................................................................................................ 85

Figure 5-58 Remove the scanner support frame (1 of 5) ................................................................................. 86

Figure 5-59 Remove the scanner support frame (2 of 5) ................................................................................. 87

Figure 5-60 Remove the scanner support frame (3 of 5) ................................................................................. 87

Figure 5-61 Remove the scanner support frame (4 of 5) ................................................................................. 88

Figure 5-62 Remove the scanner support frame (5 of 5) ................................................................................. 88

Figure 5-63 Remove the laser/scanner (1 of 7) ................................................................................................ 89

Figure 5-64 Remove the laser/scanner (2 of 7) ................................................................................................ 90

Figure 5-65 Remove the laser/scanner (3 of 7) ................................................................................................ 90

Figure 5-66 Remove the laser/scanner (4 of 7) ................................................................................................ 91

Figure 5-67 Remove the laser/scanner assembly (5 of 7) ............................................................................... 91

Figure 5-68 Remove the laser/scanner assembly (6 of 7) ............................................................................... 92

Figure 5-69 Remove the laser/scanner assembly (7 of 7) ............................................................................... 92

Figure 5-70 Remove the main motor (1 of 4) ................................................................................................... 93

Figure 5-71 Remove the main motor (2 of 4) ................................................................................................... 94

Figure 5-72 Remove the main motor (3 of 4) ................................................................................................... 94

Figure 5-73 Remove the main motor (4 of 4) ................................................................................................... 95

Figure 5-74 Remove the fuser (1 of 6) ............................................................................................................. 96

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Figure 5-75 Remove the fuser (2 of 6) ............................................................................................................. 97

Figure 5-76 Remove the fuser (3 of 6) ............................................................................................................. 97

Figure 5-77 Remove the fuser (4 of 6) ............................................................................................................. 98

Figure 5-78 Remove the fuser assembly (5 of 6) ............................................................................................. 98

Figure 5-79 Remove the fuser assembly (6 of 6) ............................................................................................. 99

Figure 5-80 Remove the paper-pickup assembly (1 of 4) .............................................................................. 100

Figure 5-81 Remove the paper-pickup assembly (2 of 4) .............................................................................. 101

Figure 5-82 Remove the paper-pickup assembly (3 of 4) .............................................................................. 101

Figure 5-83 Remove the paper-pickup assembly (4 of 4) .............................................................................. 102

Figure 5-84 Remove the drive-gear assembly and drive belt (1 of 4). ........................................................... 103

Figure 5-85 Remove the drive-gear assembly and drive belt (2 of 4). ........................................................... 103

Figure 5-86 Remove the drive-gear assembly and drive belt (3 of 4). ........................................................... 104

Figure 5-87 Remove the Drive-gear assembly and drive belt (4 of 4). .......................................................... 104

Figure 6-1 Print-cartridge high-voltage connection points (right side) ............................................................ 133

Figure 6-2 Print-cartridge high-voltage connection points (left side) .............................................................. 134

Figure 6-3 Formatter connectors .................................................................................................................... 142

Figure 6-4 ECU connectors ............................................................................................................................ 143

Figure 6-5 Solenoid and motor ....................................................................................................................... 144

Figure 6-6 Rollers ........................................................................................................................................... 145

Figure 6-7 Sensors ......................................................................................................................................... 146

Figure 6-8 Major components ........................................................................................................................ 147

Figure 6-9 PCAs (base unit) ........................................................................................................................... 148

Figure 6-10 Circuit diagram ........................................................................................................................... 149

Figure 7-1 Scanner assemblies ...................................................................................................................... 164

Figure 7-2 Assemblies .................................................................................................................................... 166

Figure 7-3 External covers and panels .......................................................................................................... 168

Figure 7-4 Internal components (1 of 3) ......................................................................................................... 170

Figure 7-5 Internal components (2 of 3) ......................................................................................................... 172

Figure 7-6 Internal components (3 of 3) ......................................................................................................... 174

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xiv ENWW

1 Product information

Quick access to product information

●

Product comparison

●

Product features

●

Product walkaround

●

Software description

●

Software for Windows

●

Software for Macintosh

●

Uninstall software

●

Media specifications

●

ENWW 1

Quick access to product information

Use the following Web site to find information about the product.

www.hp.com/support/LJM1120

●

Table 1-1 Product guides

Guide Description

HP LaserJet M1120 MFP Getting Started Guide

HP LaserJet M1120 MFP Series User Guide

Online Help Provides information about options that are available in the printer drivers. To view a Help

Provides step-by-step instructions for installing and setting up the product.

Provides detailed information for using the product and problem-solving. Available on the product CD or in Program Group if the software is installed on a computer.

file, open the online Help through the printer driver.

2 Chapter 1 Product information ENWW

Product comparison

The product is available in the following configurations.

Base models Network models

Print letter-size pages at speeds up to 20 pages per

●

minute (ppm) and A4-size pages at speeds up to 19 ppm.

Priority input tray holds up to 10 sheets of print media.

●

Tray 1 holds up to 250 sheets of print media or 10

●

envelopes.

Manual two-sided (duplex) printing and copying.

●

Hi-Speed USB 2.0 port.

●

32-megabyte (MB) random-access memory (RAM).

●

Flatbed scanner.

●

Base model, plus:

10/100 Base-T Ethernet network port.

●

IPv4 network protocol.

●

IPv6 network protocol.

●

ENWW Product comparison 3

Product features

Copy

Memory

Paper handling

Scan

Printer driver features

Interface connections

Economical printing

Supplies

Prints letter-size pages at speeds up to 20 ppm and A4-size pages at speeds up to 19 ppm.

●

Prints at 600 dots per inch (dpi) and FastRes 1200 dpi.

●

Includes adjustable settings to optimize print quality.

●

Copies at 300 dots per inch (dpi).

●

Includes 32 MB RAM.

●

Priority input tray holds up to 10 pages.

●

Tray 1 holds up to 250 sheets of print media or 10 envelopes.

●

Output bin holds up to 100 sheets of print media.

●

Provides 1200 pixels per inch (ppi) full-color scanning.

●

FastRes 1200 produces 1200-dots-per-inch (dpi) print quality for fast, high-quality printing

●

of business text and graphics.

All models include a Hi-Speed USB 2.0 port.

●

Network models include a 10/100 Base-T Ethernet network port.

●

Provides N-up printing (printing more than one page on a sheet).

●

Provides an EconoMode setting, which uses less toner.

●

Uses a print cartridge that has a no-shake design.

●

Accessibility

The product ships with a 1,000-page (average yield) starter cartridge. The average yield

●

for replacement cartridges is 2,000 pages.

Online user guide is compatible with text screen-readers.

●

Print cartridges can be installed and removed by using one hand.

●

All doors and covers can be opened by using one hand.

●

4 Chapter 1 Product information ENWW

Product walkaround

Front view

1 Scanner lid

2 Control panel

3 Print-cartridge door latch

4 Output bin

5 Priority input tray

6 Tray 1

Back view

7 Interface ports

8 Power switch

9 Power connector

ENWW Product walkaround 5

Interface ports

All models have a Hi-Speed USB 2.0 port, and network models also have a 10/100 Base-T Ethernet port.

1 Hi-Speed USB 2.0 port

2 Ethernet port (network models only)

Serial number and model number location

The serial number and product model number label is on the rear of the product.

6 Chapter 1 Product information ENWW

Software description

Supported operating systems

The product supports the following operating systems:

Full software installation

Windows XP (32-bit)

●

Windows Vista (32-bit)

●

Windows 2000

●

Windows 2003 Server (32-bit)

●

Mac OS X v10.3, v10.4, and later

●

NOTE: For Mac OS X v10.4 and later, PPC and Intel Core Processor Macs are supported.

Supported printer drivers

The product comes with software for Windows and Macintosh that allows the computer to communicate with the product. This software is called a printer driver. Printer drivers provide access to product features, such as printing on custom-sized paper, resizing documents, and inserting watermarks.

NOTE: The most recent drivers are available at www.hp.com/support/LJM1120. Depending on the

configuration of Windows-based computers, the installation program for the product software automatically checks the computer for Internet access in order to obtain the latest drivers.

Software included with the product

Print and scan drivers only

Windows XP (64-bit)

●

Windows Vista (64-bit)

●

Windows 2003 Server (64-bit)

●

There are several options for completing a recommended install. Easy installation will complete the installation with default settings. Advanced installation allows you to review the license agreements and the default settings.

Easy installation for Windows

HP drivers

●

Printer driver

◦

Scan driver

◦

HP MFP software

●

HP LaserJet Scan program

◦

Uninstall program

◦

HP Update program

●

HP Customer Participation program

●

ENWW Software description 7

Shop for HP Supplies program

●

Other programs

●

Readiris OCR (not installed with other software; separate installation is required)

◦

Advanced installation

Advanced installation includes all of the features that are available with the easy installation. The HP Customer Participation program is optional.

Macintosh software

HP Product Setup Assistant

●

HP Uninstaller

●

HP LaserJet software

●

HP Scan

◦

HP Director

◦

Scan to e-mail program

◦

HP Photosmart

◦

8 Chapter 1 Product information ENWW

Software for Windows

Embedded Web server (network models only)

Network models are equipped with an embedded Web server, which provides access to information about device and network activities. This information appears in a Web browser, such as Microsoft Internet Explorer, Netscape Navigator, Apple Safari, or Firefox.

The embedded Web server resides on the device. It is not loaded on a network server.

The embedded Web server provides an interface to the device that anyone who has a networkconnected computer and a standard Web browser can use. No special software is installed or configured, but you must have a supported Web browser on your computer. To gain access to the embedded Web server, type the IP address for the device in the address line of the browser. (To find the IP address, print a configuration page.)

Status Alerts software

The Status Alerts software provides information about the current status of the product.

The software also provides pop-up alerts when certain events occur, such as an empty tray or a problem with the product. The alert includes information about solving the problem.

Other Windows components and utilities

Software installer — automates the printing system installation

●

Online Web registration

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ENWW Software for Windows 9

Software for Macintosh

Embedded Web server (network models only)

The embedded Web server resides on the device. It is not loaded on a network server.

HP Director

HP Director is a software program for working with documents. HP Director appears on the computer screen to initiate scanning, or to change settings on the product through Macintosh Configure Device.

Also included is the HP product Setup Assistant, which sets up the print queue.

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Uninstall software

Windows

1. Click Start, and then click All Programs.

2. Click HP, and then click HP LaserJet M1120.

3. Click Uninstall, and then follow the onscreen instructions to remove the software.

Macintosh

To remove the software, drag the PPD files to the trash can.

ENWW Uninstall software 11

Media specifications

Supported paper and print media sizes

This product supports a number of paper sizes, and it adapts to various media.

NOTE: To obtain best print results, select the appropriate paper size and type in the print driver before

printing.

Table 1-2 Supported paper and print media sizes

Size Dimensions Priority input tray Tray 1

Letter 216 x 279 mm (8.5 x 11 in)

Legal 216 x 356 mm (8.5 x 14 in)

A4 210 x 297 mm (8.27 x 11.69 in)

Executive 184 x 267 mm (7.24 x 10.51 in)

A3 297 x 420 mm (11.69 x 16.54 in)

A5 148 x 210 mm (5.83 x 8.27 in)

A6 105 x 148 mm (4.13 x 5.83 in)

B5 (JIS) 182 x 257 mm (7.17 x 10.12 in)

16k 197 x 273 mm (7.75 x 10.75 in)

16k 195 x 270 mm (7.7 x 10.6 in)

16k 184 x 260 mm (7.25 x 10.25 in)

8.5 x 13 216 x 330 mm (8.5 x 13 in)

4 x 6

5 x 8

10 x 15 cm

Custom Priority input tray: Minimum—76 x 127 mm (3 x

These sizes are supported as custom sizes.

107 x 152 mm (4 x 6 in)

127 x 203 mm (5 x 8 in)

100 x 150 mm (3.9 x 5.9 in)

5 in); Maximum—216 x 356 mm (8.5 x 14 in)

Table 1-3 Supported envelopes and postcards

Size Dimensions Priority input tray Tray 1

Envelope #10 105 x 241 mm (4.13 x 9.49 in)

Envelope DL 110 x 220 mm (4.33 x 8.66 in)

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Table 1-3 Supported envelopes and postcards (continued)

Size Dimensions Priority input tray Tray 1

Envelope C5 162 x 229 mm (6.93 x 9.84 in)

Envelope B5 176 x 250 mm (6.7 x 9.8 in)

Envelope Monarch 98 x 191 mm (3.9 x 7.5 in)

Postcard 100 x 148 mm (3.94 x 5.83 in)

Double postcard 148 x 200 mm (5.83 x 7.87 in)

Supported paper types and tray capacity

This product has the following tray priority for feeding print media:

1. Priority input tray

2. Tray 1

Minimum media dimensions are 76 x 127 mm (3 x 5 in).

Maximum media dimensions are 216 x 356 mm (8.5 x 14 in).

To obtain the best print results, change the paper size and paper type settings in the printer driver before printing.

Table 1-4 Supported paper types and tray capacity

Type is Media specifications Priority input tray Tray 1 capacity

Plain

Color

Preprinted

Prepunched

Recycled

Light

Envelopes

Labels Standard 1 sheet Not supported.

Bond

Rough

Transparencies 4 mm (0.1 in) Monochrome

Heavy

Letterhead

The maximum stack height for tray 1 is 25 mm (1 inch).

75 g/m2 (20 lb) to 104 g/m2 (27 lb)

60 g/m2 (16 lb) to 75 g/m2 (20 lb)

Less than 90 g/m2 (24 lb)

75 g/m2 (20 lb) to 104 g/m2 (27 lb)

Overhead

110 g/m2 (29 lb) to 125 g/m (33 lb)

75 g/m

(20 lb) to 104 g/m2 (27 lb)

Up to 10 sheets Up to 250 sheets

Up to 10 sheets Up to 260 sheets

1 envelope Up to 10 envelopes.

1 sheet Up to 250 sheets

1 sheet Up to 200 sheets

1 sheet Up to 200 sheets.

Up to 10 sheets Not supported.

Up to 10 sheets Up to 250 sheets

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