Manual Hp

HP LaserJet M1120 MFP Series

Service Manual

HP LaserJet M1120 MFP Series

Service Manual

Copyright and License

© 2008 Copyright Hewlett-Packard

Development Company, L.P.

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.

Microsoft®, Windows®, and Windows NT®

are U.S. registered trademarks of Microsoft

Corporation.

UNIX® 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

ENWW iii

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

3 Maintenance

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

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 product ............................................................................................................................... 28

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

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

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

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

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

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

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

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

4 Operational theory

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

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

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

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

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

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

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

...