Lexmark T430 Service manual

Revised: 10/23/06

Lexmark™ T430

• Table of contents

• Start diagnostics

4048-1xx

• Safety and notices

• Trademarks

•Index

Lexmark and Lexmark with diamond
design are trade ma rks of Lexmark
International, Inc., registered in the
United States and/or ot her countries.

4048-1xx

Editi on: October 23, 2006
The following paragraph does not apply to any country where such provisions are

inconsiste nt with loc al law : LEXMARK INTERNATIONAL, INC. PROVIDES THIS

PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANT ABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do
not allow discl aimer of expr ess or implied wa rranties in certain transactions; therefore,
this statement may not apply to you.

This publica tion could include technical inaccuracies or typographical errors. Changes
are periodically made to the information herein; these changes will be incorporated in
later edition s . Improvements or changes in the products or the programs described may
be made at any time.

Comments may be a ddressed to Lex mark International, Inc., Dep artment D22A/032- 2,
740 WestNew Circle Road, Lexington, Kentucky 4055 0, U. S.A or e-mail at
[e-mail]. Lexmark may use or distribute any of the
information you supply in any way it believes appropriate without incurring any obligation
to you.

References in this publication to products, programs, or services do not imply that the
manufacturer intends to make these available in all countries in which it operates. Any
reference to a product, progra m, or servi c e is not intended to state or imply that only that
product, program, or service may be used. Any f unctionally equivalent pr oduct, pr ogram,
or service that does not infringe any existing intellectual property right may be used
instead. Evaluation and verifica tion of operat ion in conjunction with other pr oducts ,
programs, or services, except those expressly designated by the manufacturer, are the
user’s responsibility.

Lexma rk, Lexmark with diamond design, MarkNet, and MarkVision are trademarks of
Lexmark International, Inc., registered in the United States and/or other countries.

ImageQuick, Optra Forms, and PrictureGrade are trademarks of Le mark Intern ational,
Inc.

®

PCL

is a registered trademark of the Hewlett-Packard Company.

®

PostScript
Other trademarks are the property of their respective owners.

© 2006, 2004 Lexmark International, Inc.
All rights reserved.

UNITED STATES GOVERNMENT RESTRICTED RIGHTS

This software and documentation are provided with RE STRICTED RIGHTS. Use,
duplication or disclosure by the Government is subject to restrictions as set forth in
subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at
DFARS 252.227-7013 and in applicable FAR provisions: Lexmark International, Inc.,
Lexi ngton, KY 40550.

is a registered trademark of Adobe Systems Incorporated.

U.S.A. P/N 12G9436

4048-1xx

Table of Conte nt s

Laser notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Safety information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Maintenance approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Special tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Printer identifi cation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Printer features and specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Operator panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Resolution and print quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Memory and user flash memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Printer data streams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Print area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Fonts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Media and paper handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Media. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Standard and optional paper sources . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Input media sources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Output media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Diagnostic information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Power–On Reset (POR) sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Symptom tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

POST symptom table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Printer symptom tab le . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Messages and error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Service error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

User attendance messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Paper jam messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Sub error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Disconnects on the controller card. . . . . . . . . . . . . . . . . . . . . . . . . . 2-34

iii

4048-1xx

Service checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-36

Cooling fan service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-36

Cover interlock switch service check. . . . . . . . . . . . . . . . . . . . . . . . .2-37

Controller card service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-38

Dead machine service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-39

Low voltage power supply (LVPS) service check . . . . . . . . . . . . . . .2-39

High voltage power supply (HVPS) service check. . . . . . . . . . . . . . .2-40

Fuser service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-40

Main motor service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-42

Operator panel ser vice check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-43

Transfer rol l ser vice check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-44

Paper feed servic e checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-45

Parallel port ser vice check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-49

Print quality service checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-50

Solving print qual ity problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-56

Diagnostic aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Additional service menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Diagnostics Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Entering Diagnostic Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

REGISTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

PRINT TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

HARDWARE TESTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

DUPLEX TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

INPUT TRAY TESTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12

BASE SENSOR TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14

DEVICE TESTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14

PRINTER SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15

EP SETUP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

ERROR LOG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Entering CONFIG MENU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Maint Cn t V al ue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Reset Ma int Cnt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Prt Quality Pgs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Panel Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

PPDS Emulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Download Emuls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Demo Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Factory Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Energy Conserve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

ERROR LOG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

Paper Prompts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26

Env Prompts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26

Reduced Curl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26

Exit Conf ig M enu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26

Paper jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-27

iv Service Manual

4048-1xx

Repair information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Handling ESD-sensitive parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Printhead assembly adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Adjusting paper feed al ignment (skew) . . . . . . . . . . . . . . . . . . . . . . . 4-5

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Removal procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

MPF door cover remov al . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Front cover removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Top cover assembly removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Right side cover rem oval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Left side cover remov a l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Rear cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Rear exit door removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Output tray full flag removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Operator panel cable removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Operator panel assembly removal. . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

Duplex tray assembly removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24

Bottom pan removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

Fuser assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26

Fuser paper exit guide assem bly removal. . . . . . . . . . . . . . . . . . . . 4-29

Fuser exit sensor removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33

Cartridge contact assembly removal . . . . . . . . . . . . . . . . . . . . . . . . 4-34

Tray damper and spring remov al. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

Door latch removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

Paper guide roller removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37

Char ge ro ll remova l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38

Right guide removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

Left guide removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40

Cartridge signature button sensor removal . . . . . . . . . . . . . . . . . . . 4-42

Transfer roll assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43

Bracket, paper detect (input sensor) re mo val . . . . . . . . . . . . . . . . . 4-44

D–ro ll fe e d rem o v a l, tr a y 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44

D–roll shaft assembly removal, tray 1 . . . . . . . . . . . . . . . . . . . . . . . 4-45

3–pin and 2–pin connect ors removal. . . . . . . . . . . . . . . . . . . . . . . . 4-46

Printhead removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46

Controller card cage (with card in place) removal . . . . . . . . . . . . . . 4-48

Controller card assembly remo val . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50

MPF gear removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52

Main drive motor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . 4-53

Main drive assembl y removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55

Exit drive motor removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58

Exit drive assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-59

Ratchet drive removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60

Reference feed assembly removal. . . . . . . . . . . . . . . . . . . . . . . . . . 4-62

v

4048-1xx

Cartridge coup li ng assembly removal . . . . . . . . . . . . . . . . . . . . . . . .4-65

Upper MPF housing asse mbly (with paper flag) removal . . . . . . . . .4-66

MPF paper sensor removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-67

Lower MPF housing asse mb ly removal. . . . . . . . . . . . . . . . . . . . . . .4-70

Backup feed roller assembly removal . . . . . . . . . . . . . . . . . . . . . . . .4-72

MPF pick roller assembly removal. . . . . . . . . . . . . . . . . . . . . . . . . . .4-73

HVPS card removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-75

LVPS fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-76

LVPS card removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-77

Inner link and outer link assembly rem oval . . . . . . . . . . . . . . . . . . . .4-78

Cooling fan removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-82

Locations and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Exterior locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

Controller card assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

Low voltage power supply (LVPS) . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7

High voltage power supply (HVPS) . . . . . . . . . . . . . . . . . . . . . . . . . .5-8

Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Safety inspection guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Lubrication specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Scheduled maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Maintenance kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Maintenance kit parts group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

Parts catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

How to use this parts catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

Assembly 1: Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2

Assembly 2: Paper feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4

Asse m b l y 3: Fram e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6

Assembly 4: Multipurpose feeder (MPF). . . . . . . . . . . . . . . . . . . . . . . . . .7-8

Assembly 5: Fuser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-9

Assembly 6: Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-10

Assembly 7: Electronics and cables 1 . . . . . . . . . . . . . . . . . . . . . . . . . .7-12

Assembly 8: Electronics and cables 2 . . . . . . . . . . . . . . . . . . . . . . . . . .7-14

Asse m b l y 9: Sens ors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-18

Asse m b l y 10 : Opti on s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-20

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1

Part number index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-7

vi Service Manual

4048-1xx

Laser notices

The following laser notice labels may be affixed to this printer as
shown:

Laser advis o ry label

Laser notices vii

4048-1xx

Laser no tice

The printer is certified in the U.S. to conform to the requirements of
DHHS 21 CFR Subchapter J for Class I (1) laser products, and
elsewhere is certified as a Class I laser product conforming to the
requirements of IEC 60825-1.

Class I laser products are not considered to be hazardous. The
printer contains internally a Class IIIb (3b) laser that is nominally a 5
milliwatt gallium arsenide laser operating in the wavelength region of
770-795 nanometers. The laser system and printer are designed so
there is never any human access to laser radiation above a Class I
level during normal operation, user maintenance, or prescribed
service condition.

Laser

Der Drucker erfüllt gemäß amtlicher Bestätigung der USA die
Anforderungen der Bestimmung DHHS (Department of Health and
Human Services) 21 CFR Teil J für Laserprodukte der Klasse I (1).
In anderen Ländern gilt der Drucker als Laserprodukt der Klasse I,
der die Anforderungen der IEC (International Electrotechnical
Commission) 60825-1 gemäß amtlicher Bestätigung erfüllt.

Laserprodukte der Klasse I gelten als unschädlich. Im Inneren des
Druckers befindet sich ein Laser der Klasse IIIb (3b), bei dem es
sich um einen Galliumarsenlaser mit 5 Milliwatt handelt, der Wellen
der Länge 770-795 Nanometer ausstrahlt. Das Lasersystem und der
Drucker sind so konzipiert, daß im Normalbetrieb, bei der Wartung
durch den Benutzer oder bei ordnungsgemäßer Wartung durch den
Kundendienst Laserbestrahlung, die die Klasse I übersteigen würde,
Menschen keinesfalls erreicht.

viii Service Manual

4048-1xx

Avis relatif à l’utilisation de laser

Pour les Etats-Unis : cette impr imant e est certifiée conforme aux
provisions DHHS 21 CFR alinéa J concernant les produits laser de
Classe I (1). Pour les autres pays : cette imprimante répond aux
normes IEC 60825-1 relatives aux produits laser de Classe I.

Les produits laser de Classe I sont considérés comme des produits
non dangereux. Cette imprimante est équipée d’un laser de Classe
IIIb (3b) (arséniure de gallium d’une puissance nominale de 5
milliwatts) émettant sur des longueurs d’onde comprises entre 770
et 795 nanomètres. L’imprimante et son système laser sont conçus
pour impossible, dans des conditions normales d’utilisation,
d’entretien par l’utilisateur ou de révision, l’exposition à des
rayonnements laser supérieurs à des rayonnements de Classe I .

Avvertenze sui prodotti laser

Questa stampante è certificata negli Stati Uniti per essere conforme
ai requisiti del DHHS 21 CFR Sottocapitolo J per i prodotti laser di
classe 1 ed è certificata negli altri Paesi come prodotto laser di
classe 1 conforme ai requisiti della norma CEI 60825-1.

I prodotti laser di classe non sono considerati pericolosi. La
stampante contiene al suo interno un laser di classe IIIb (3b)
all’arseniuro di gallio della potenza di 5mW che opera sulla
lunghezza d’onda compresa tra 770 e 795 nanometr i. Il sistema
laser e la stampante sono stati progettati in modo tale che le
persone a contatto con la stampante, durante il normale
funzionamento, le operazioni di servizio o quelle di assistenza
tecnica, non ricevano radiazioni laser superiori al livello della
classe 1.

Laser notices ix

4048-1xx

Avisos sobre el láser

Se certifica que, en los EE.UU., esta impresora cumple los
requisitos para los productos láser de Clase I (1) establecidos en el
subcapítulo J de la norma CFR 21 del DHHS (Departamento de
Sanidad y Servicios) y, en los demás países, reúne todas las
condiciones expuestas en la norma IEC 60825-1 para productos
láser de Clase I (1).

Los productos láser de Clase I no se consideran peligrosos. La
impresora contiene en su interior un láser de Clase IIIb (3b) de
arseniuro de galio de funcionamiento nominal a 5 milivatios en una
longitud de onda de 770 a 795 nanómetros. El sistema láser y la
impresora están diseñados de forma que ninguna persona pueda
verse afectada por ningún tipo de radiación láser superior al nivel de
la Clase I durante su uso normal, el mantenimiento realizado por el
usuario o cualquier otra situación de servicio técnico.

Declaração sobre Laser

A impressora está certificada nos E.U.A. em conformidade com os
requisitos da regulamentação DHHS 21 CFR Subcapítulo J para a
Classe I (1) de produtos laser. Em outros locais, está certificada
como um produto laser da Classe I, em conformidade com os
requisitos da norma IEC 60825-1.

Os produtos laser da Classe I não são considerados perigosos.
Internamente, a impressora contém um produto laser da Classe IIIb
(3b), designado laser de arseneto de potássio, de 5 milliwatts
,operando numa faixa de comprimento de onda entre 770 e 795
nanómetros. O sistema e a impressora laser foram concebidos de
forma a nunca existir qualquer possiblidade de acesso humano a
radiação laser superior a um nível de Classe I durante a operação
normal, a manutenção feita pelo utilizador ou condições de
assistência pres critas.

x Service Manual

4048-1xx

Laserinformatie

De printer voldoet aan de eisen die gesteld worden aan een
laserprodukt van klasse I. Voor de Verenigde Staten zijn deze eisen
vastgelegd in DHHS 21 CFR Subchapter J, voor andere landen in
IEC 60825-1.

Laserprodukt en van klasse I worden niet als ongevaarlijk
aangemerkt. De printer is voorzien van een laser van klasse IIIb
(3b), dat wil zeggen een gallium arsenide-laser van 5 milliwatt m e t
een golflengte van 770-795 nanometer. Het lasergedeelte en de
printer zijn zo ontworpen dat bij normaal gebrui k, bij onderhoud of
reparatie conform de voorschriften , nooit blootste lling mogelijk is
aan laserstraling boven een niveau zoals voorgeschrev en is voor
klasse 1.

Lasermeddelelse

Printeren er godkendt som et Klasse I-laserprodukt, i
overenstemmelse med kravene i IEC 60825-1.

Klasse I-laserprodukter betragtes ikke som farlige. Printeren
indeholder internt en Klasse IIIB (3b)-laser , der nominelt er en 5
milliwatt galliumarsenid laser, som arbejder på bølgelængdeområdet
770-795 nanometer. Lasersystemet og printeren er udformet
således, at mennesker aldrig udsættes for en laserstråling over
Klasse I-niveau ved normal drift, brugervedligeholdelse eller
obligatoriske servicebetingelse r.

Laser notices xi

4048-1xx

Huomautu s las er laitteesta

Tämä kirjoitin on Yhdysvalloissa luokan I (1) laserlaitteiden DHHS
21 CFR Subchapter J -määrityksen mukainen ja muualla luokan I
laserlaitteiden IEC 60825-1 -määrityksen mukainen.

Luokan I laserlaitteiden ei katsota olevan vaarallisia käyttäjälle.
Kirjoittimessa on sisäinen luokan IIIb (3b) 5 milliwatin
galliumarsenidilaser, joka toimii aaltoalueella 770 - 795 nanometriä.
Laserjärjestelmä ja kirjoitin on suunniteltu siten, että käyttäjä ei
altistu luokan I määrityksiä voimakkaammalle säteilylle kirjoittimen
normaalin toiminnan, käyttäjän tekemien huoltotoimien tai muiden
huoltotoimien yhteydessä.

VARO! Avattaessa ja suojalukitus ohitettaessa olet alttiina
näkymättömälle lasersäteilylle. Älä katso säteeseen.

VARNING! Osynlig laserstrålning när denna del är öppnad och
spärren är urkopplad. Betrakta ej strålen.

Laser-notis

Denna skrivare är i USA certifierad att motsvara kraven i DHHS 21
CFR, underparagraf J för laserprodukter av Klass I (1). I andra
länder uppfyller skrivaren kraven för laserprodukter av Klass I enligt
kraven i IEC 60825-1.

Laserprodukter i Klass I anses ej hälsovådliga. Skrivaren har en
inbyggd laser av Klass IIIb (3b) som består av en laserenhet av
gallium-arsenid på 5 milliwatt som arbetar i våglängdsområdet 770­795 nanometer. Lasersyst emet och skrivaren är utfo rmade så att det
aldrig finns risk för att någon person utsätts för laserstrålning över
Klass I-nivå vid normal användning, underhåll som utförs av
användaren eller annan föreskriven serviceåtgärd.

xii Service Manual

4048-1xx

Laser-melding

Skriveren er godkjent i USA etter kravene i DHHS 21 CFR,
underkapittel J, for klasse I (1) laserprodukter, og er i andre land
godkjent som et Klasse I-laserproduk t i samsvar med kravene i IEC
60825-1.

Klasse I-laserprodukter er ikke å betrakte som farlige. Skriveren
inneholder internt en klasse IIIb (3b)-laser, som består av en
gallium-arsenlaserenhet som avgir stråling i bølgelengdeområdet
770-795 nanometer. Lasersystemet og skriveren er utformet slik at
personer aldri utsettes for laserstråling ut over klasse I-nivå under
vanlig bruk, vedlikehold som utføres av brukeren, eller foreskrevne
serviceopera sjoner.

Avís sobre el Làser

Segons ha estat certificat als Estats Units, aquesta impressora
compleix els requisits de DHHS 21 CFR, apartat J, pels productes
làser de classe I (1), i segons ha estat certificat en altres llocs, és un
producte làser de classe I que compleix els requisits d’IEC 60825-1.

Els productes làser de classe I no es consideren perillosos. Aquesta
impressora conté un làser de classe IIIb (3b) d’arseniür de gal.li,
nominalment de 5 mil.liwats, i funciona a la regió de longitud d’ona
de 770-795 nanòmetres. El sistema làser i la impressora han sigut
concebuts de manera que mai hi hagi exposició a la radiació làser
per sobre d’un nivell de classe I durant una operació normal, durant
les tasques de manteniment d’usuar i ni durant els serveis que
satisfacin les condicions prescrites.

Laser notices xiii

4048-1xx

Japanese Laser Notice

Chinese Laser Notice

xiv Service Manual

4048-1xx

Korean Laser Notice

Laser notices xv

4048-1xx

xvi Service Manual

4048-1xx

Safety information

• The safety of this product is based on testing and approvals of

the original design and specific components. The manufacturer
is not responsible for safety in the event of use of unauthorized
replacement par ts.

• The maintenance information for this product has been

prepared for use by a professional service person and is not
intended to be used by others.

• There may be an increased risk of electric shock and personal

injury during disassembly and servicing of this product.
Professional service personnel should understand this and take
necessary precaut ions.

• CAUTION: When you see this symbol, there is a

danger from hazardous voltage in the area of the
product where you are working. Unplug the product
before you begin, or use caution if the product must
receive power in order to perform the task.

Consig n es de sécu ri té

• La sécurité de ce produit repose sur des tests et des

agréations portant sur sa conception d'orig ine et sur des
composants particuliers. Le fabricant n'assume aucune
responsabilité concernant la sécurité en cas d'utilisation de
pièces de rechange non agréées.

• Les consignes d'entretien et de réparation de ce produit

s'adressent uniquement à un personnel de maintenance
qualifié.

• Le démontage et l'entretien de ce produit pouvant présenter

certains r isques électr iqu es, le personnel d'entretien qualifié
devra prendre toutes les précautions nécessaires.

• ATTENTION : Ce symbole indique la présence

d'une tension dang ereus e dans la par t ie du produit
sur laquelle vous travaillez. Débranchez le produit
avant de commencer ou faites preuve de vigilance si
l'exécution de la tâche exige que le produit reste sous
tension.

Safety information xvii

4048-10x

Norme di sicurezza

• La sicurezza del prodotto si basa sui test e sull'approvazione

del progetto originale e dei componenti specifici. Il produttore
non è responsabile per la sicurezza in caso di sostituzione non
autorizzata delle parti.

• Le informazioni riguardanti la manutenzione di questo prodotto

sono indirizzate soltanto al personale di assistenza autorizzato.

• Durante lo smontaggio e la manutenzione di questo prodotto,

il rischio di subire scosse elettriche e danni alla persona è più
elevato. Il personale di assistenza autorizzato deve, quindi,
adottare le precauzioni necessarie.

• ATTENZIONE: Questo simbolo indica la presenza

di tensione pericolosa nell'area del prodotto.
Scollegare il prodotto prima di iniziare o usare
cautela se il prodotto deve essere alimentato per
eseguire l'intervento.

Sicherheitshinweise

• Die Sicherheit dieses Produkts basiert auf T ests und

Zulassungen des ursprünglichen Modell s und bestimmter
Bauteile. Bei Verwendung nicht genehmigter Ersatzteile wird
vom Hersteller keine Verantwortung oder Haftung für die
Sicherheit übernommen.

• Die Wartungsinformationen für dieses Produkt sind

ausschließlich für die Verwendung durch einen
Wartungsfachmann bestimmt.

• Während des Auseinandernehme ns und der Wartung des

Geräts besteht ein zusätzliches Risiko eines elektrischen
Schlags und körperlicher Verletzung. Das zuständige
Fachpersonal sollte entsprechende Vorsichtsmaßnahmen
treffen.

• ACHTUNG: Dieses Symbol weist auf eine

gefährliche elektrische Spannung hin, die in diesem
Bereich des Produkts auftreten kann. Ziehen Sie vor
den Arbeiten am Gerät den Netzstecker des Geräts,
bzw. arbeiten Sie mit großer Vorsicht, wenn das
Produkt für die Ausführung der Arbeiten an den
Strom angeschlossen sein muß.

xviii Service Manual

4048-1xx

Pautas de Seguridad

• La seguridad de este producto se basa en pruebas y

aprobaciones del diseño original y componentes espec íficos.
El fabricante no es responsable de la seguridad en caso de uso
de piezas de repuesto no autorizadas.

• La información sobre el mantenimiento de este producto está

dirigida exclusivamente al personal cualificado de
mantenimiento.

• Existe mayor riesgo de descarga eléctrica y de daños

personales durante el desmontaje y la reparación de la
máquina. El personal cualificado debe ser consciente de este
peligro y tomar las precauciones necesarias.

• PRECAUCIÓN: este símbolo indica que el voltaje

de la parte del equipo con la que está trabajando es
peligroso. Antes de empezar, desenchufe el equipo
o tenga cuidado si, para trabajar con él, debe
conectarlo.

Informações de Segurança

• A segurança deste produto baseia-se em testes e aprovações

do modelo original e de componentes específicos. O fabricante
não é responsável pela segunrança, no caso de uso de peças
de substituição não autorizadas.

• As informações de segurança relativas a este produto

destinam-se a profissionais destes serviços e não devem ser
utilizadas por outras pessoas.

• Risco de choques eléctricos e ferimentos graves durante a

desmontagem e manutenção deste produto. Os profissionais
destes serviços devem estar avisados deste facto e tomar os
cuidados necessários.

• CUIDADO: Quando vir este símbolo, existe a

possível presença de uma potencial tensão perigosa
na zona do produto em que está a trabalhar. Antes
de começar, desligue o produto da tomada eléctrica
ou seja cuidadoso caso o produto tenha de estar
ligado à corrente eléctrica para realizar a tarefa
necessária.

Safety information xix

4048-10x

Inf ormació de Seguretat

• La seguretat d'aquest producte es basa en l'avaluació i

aprovació del disseny original i els components específics.
El fabricant no es fa responsable de les qüestions de
seguretat si s'utilitzen peces de recanvi no autoritzades.

• La informació pel manteniment d’aquest producte està

orientada exclusivament a professionals i no està destinada
a ningú que no ho sigui.

• El risc de xoc elèctric i de danys personals pot augmentar

durant el procés de desmuntatge i de servei d’aquest producte.
El personal professional ha d’estar-ne assabentat i prendre
les mesures convenie n ts.

• PRECAUCIÓ: aquest símbol indica que el voltatge

de la part de l'equip amb la qual esteu treballant és
perillós. Abans de començar, desendolleu l'equip
o extremeu les precaucions si, per treballar amb
l'equip, l'heu de connectar.

xx Service Manual

4048-1xx

Safety information xxi

4048-10x

Preface

This manual contains maintenance procedures for service
personnel. It is divided into the following chapters:

1. General informati on contains a general description of the
printer and the maintenance approach used to repair it. Special
tools and test equipment are listed, as well as general
environmental and safety instructions.

2. D iagnostic information contains an error indicator table,
symptom tables, and service checks used to isolate failing field
replaceable units (FRUs).

3. D iagnostic aids contains tests and checks used to locate or
repeat symptoms of printer problems.

4. Repair information provides instructions for making printer
adjustments and removing and installing FRUs.

5. Locations and connections uses illustrations to identify the
connector locations and test points on the printer.

6. Preventive maintenance contains the lubrication specifications
and recommendations to prevent problems.

7. Parts catalog contains illustrations and part numbers for
individual FRUs.

Definitions

Note: A note provides additional information.
Warning: A warning identifies something that might damage the

product hardware or software.
CAUTION: A caution identifies something that might cause a

service r harm.

CAUTION: When you see this symbol, there is a
danger from hazardous voltage in the area of the
product where you are working. Unplug the product
before you begin, or use caution if the product must
receive power in order to perform the task.

xxii Service Manual

4048-1xx

1. Gen e r a l informa tion

The Lexmark™ T430 (4048-1xx) laser printer is a monochrome
laser printer designed for individual users or small workgroups.

Models

There are three models, differing on standard features, including
standard memor y. For information on standard and optional
memory, see “Memory and user flash memory” on page 1-5.

Models

Standard features

Duplex ✓✓✗
Parallel interface connector

(1284–B connector.)
Parallel mod e 2 ✓✓✓
USB port ✓✓✓
Ethernet adapter, integrated ✗✓✗

✓ Indicates attachment is part of the factory ship ped configuration.
✗ Indicates att a chment is not part of the factory shi pped configuration.

101 102 111

✓✓✓

Maint en an ce ap proa ch

The diagnostic information leads you to the correct field replaceable
unit (FRU) or part. Use the error code charts, symptom index, and
service checks to determine the symptom and repair the failure. See

“Diagn ost ic in formation” on page 2-1, for the location of each

section. See the “Re pair i nformation” on page 4-1 to help identify
parts. After completing the repair, perform tests as needed to verify
the repair.

General information 1-1

4048-1xx

Special tools

Long Phillips screwdr iver (appr oximately 6–inc h shank )
Slotted screwdriver
Small Phillips screwdriver
Spring hook

When taking voltage readings, always use the printer frame as
ground unless another ground is specified.

Printer identification

Serial number

Look for the serial number label on the inside front cover of the
printer.

1-2 Service Manual

4048-1xx

Printer features and specifications

Operator panel

The operator panel consists of a two-line display and six buttons
(Menu is two buttons).

General information 1-3

4048-1xx

Resolution and print quality

• IET, PictureGrade™, print resolution, print darkness, and toner

saver can all be set independently of each other through the
data stream.

• Control panel menus let a user independently set PictureGrade

and print resolution.

• The IET setting is selected when a print resolution is selected

using the Quality Menu.

• Toner saver and print darkness settings are set when a toner

darkness is selected using the Quality Menu.

Print Quality setti ng All models

Print resoluti o n :

• 300 dpi

• 600 dpi

• 1200 Image Quality

• 2400 Image Quality

• 1200 dpi

Image Enhancement Technology
(IET):

• 2 bits/pel

• 4 bits/pel

✓
✓
✓
✓
✓

✓
✓

Toner sa ver ✓
Print darkness ✓
PictureGrade ✓

Indicates print quality setting is supported.

✓

1-4 Service Manual

4048-1xx

Memory and user flash memory

Each model has a standard amount of memory (RAM) soldered on the
controller card, and a certain number of 100-pin DIMM slots available for
installing addi tional memory or user flash memory options.

Models

Memory

Standard memory 32MB 64MB
Standard flash memory None None
Memory options

8MB DIMM
16MB DIMM
32MB DIMM
64MB DIMM
128MB DIMM

256MB DIMM
Maximum # of memory DIMM 1 1
Maximum possible memory 288MB 320MB
Flash memory options

16MB

32MB
Maximum # of flash memory options 1 1
Maximum possible flash memory 32MB 32MB
✓ Indicates opt ion is supported.

101 and 111 102

✓
✓
✓
✓
✓
✓

✓
✓

✓
✓
✓
✓
✓
✓

✓
✓

Printer data streams

Data streams All mode ls

PCL 6 emulation ✓
Post Scri pt 3 emulation ✓
PPDS ✓
PDF (version 1.3) ✓

General information 1-5

4048-1xx

Print area

The following print area settings are available.

Print a re a o p tion All mode ls

Normal ✓
Fit to page ✗
Edge to edge ✓

Supplies

Print cartridge Average yield

Lexmark Return Progr am
print cartridges

Regular cartridges (without Lexmark
Return Program terms and
conditions)

6,000

12,000

6,000

12,000

Approximate

coverage

Fonts

Fonts/options All models

PCL bitmapped 2
PCL scalable 89
PostScript scalable 91
PPDS bitmapped 5
PPDS scalable 39

Note: Additional fonts can be downloaded to the printer RAM, or
optional user flash.

5%
5%

5%
5%

1-6 Service Manual

4048-1xx

Media and pape r ha nd l in g

Media

The following table shows the supported media, media weights and
media textures which together provide optimal print quality across a
variety of media.

Media supported All models

Paper ✓
Card stock ✓
Transparency ✓
Labels ✓
Envelope ✓
Bond ✓

Media weights

Heavy ✓
Normal ✓
Light ✓

Media text ures

Rough ✓
Normal ✓
Smooth ✓

Note:

✓ Indicates media is suppor ted.

General information 1-7

4048-1xx

Standard and optional paper sources

Models

Media sources
Standard

Standard input sources: 2 2

• Integrated 250–sheet tray
The 250-sheet drawer supports the fo ll owing

sizes: A4, A5, JIS B5, folio, letter, legal,
ex ecutive, and statement.

• Multipurpose feeder 1 1

Standard output destination (150-s heet sensing
bin)

Duplex (standard in models 101 and 102, only) ✓✗

Options

Maximum # of optional drawers 2 2
Optional drawers:

Note: When two optional dra w ers are installed ,
the first must be a 250-sheet draw er.

• 250–sheet drawer ✓✓

• 500–sheet drawer
The 500 sheet drawer supports the following

sizes: A4, JIS B5, folio, letter , legal, and
executive.

101, 102 111

11

11

✓✓

Maximum number of media input sources 4 4
Maximum input sheet capacity (excluding

envelopes)
Maximum sheet capacity (excluding envelopes) 150 150
✓ Indicates associated capability is supported.

Assumes 20 lb xerographic pap er.

1000 1000

1-8 Service Manual