Lexmark 4200 User Manual

Lexmark 4200 Series

• Table of Contents

• Start Diagnostics

• Safety and Notices

All-In-One

4413-XXX

• Trademarks

•Index

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

4413-XXX

Edition: March 2004 The following paragraph does not apply to any country where suc h provisions are

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

PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRE SS OR IMPLIED , INCLUDING, BUT NOT LIMITED T O, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions; therefore, this statement may not apply to you.

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

Comments may be addressed to Lexmark International, Inc., Department D22A/032-2, 740 West New Circle Road, Lexington, Kentucky 40550, U.S.A or e-mail at ServiceInfoAndTraining@Lexmark.com. Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. You can purchase additional copies of publications related to this product by calling 1-800-553-9727. In other countries, contact your point of purchase.

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

Other trademarks are the property of their respective owners.

UNITED STATES GOVERNMENT RIGHTS

This software and any accompanying documentation provided under this agreement are commercial computer software and documentation developed exclusively at private expanse.

USA P/N 12G9334

Japanese P/N 12G9335

4413-XXX

Safety information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. x

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

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Print engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Printhead. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Facsimile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Scanner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Power and size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

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

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

Power-On Self Test (POST) sequence. . . . . . . . . . . . . . . . . . 2-1

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

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

Service checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Carrier transport service check. . . . . . . . . . . . . . . . . . . . . . . . 2-6

CIS assembly service check. . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Scanner motor with gear assembly service check . . . . . . . . . 2-9

Maintenance station se rvic e ch eck . . . . . . . . . . . . . . . . . . . . 2-10

Paper feed service check . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Paper path service check . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Power service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Print quality service check. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Scan/copy quality service check. . . . . . . . . . . . . . . . . . . . . . 2-17

Fax/telephone communication service check . . . . . . . . . . . . 2-18

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

Theory of mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Scanner mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Drive feed roller assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Contact Image Sensor (CIS). . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Document sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

iii

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

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

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

Removal procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Releasing plastic latches . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

General precautions on removals . . . . . . . . . . . . . . . . . . . . . .4-3

CIS white roller assembly removal. . . . . . . . . . . . . . . . . . . . . .4-4

Top cover assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Rollers (drive feed roller assembly, exit shaft) removal . . . . . .4-6

CIS (Contact Image Sensor) removal . . . . . . . . . . . . . . . . . .4-10

Scanner motor with gear assembly removal . . . . . . . . . . . . .4-11

Control panel assembly removal . . . . . . . . . . . . . . . . . . . . . .4-13

Print engine removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16

Maintenance station removal . . . . . . . . . . . . . . . . . . . . . . . . .4-17

Carrier assembly with belt removal . . . . . . . . . . . . . . . . . . . .4-18

System board removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19

Exit rollers removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-20

Large feed roller assembly with gear removal . . . . . . . . . . . .4-21

Paper feed motor assembly with gears rem oval . . . . . . . . . .4-23

Carrier transport motor removal. . . . . . . . . . . . . . . . . . . . . . .4-24

Handset and cradle removal . . . . . . . . . . . . . . . . . . . . . . . . .4-24

Connector locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

System board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

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

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

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

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

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

iv Service Manual

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 parts.

• 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 necessar y pr ec autions.

• 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.

Consignes de sécurité

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

agréations portant sur sa conception d'origine 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 risques électriques, le personnel d'entretien qualifié devra prendre toutes les précautions nécessaires.

• ATTENTION : Ce symbole indique la présence

d'une tension dangereuse dans la partie 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 v

4413-XXX

Norme di sicurezza

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

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 Tests und

Zulassungen des ursprünglichen Modells 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 Auseinandernehmens 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.

vi Service Manual

Pautas de Seguridad

• La seguridad de este producto se basa en pruebas y

aprobaciones del dise ño original y componentes específicos. 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

4413-XXX

• 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 profissio nai s 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 pr esença 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 vii

4413-XXX

Informació 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 se rv e i d’aquest producte. El personal professional ha d’estar-ne assabentat i prendre les mesures convenients.

• 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.

viii Service Manual

4413-XXX

Safety information ix

4413-XXX

Preface

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

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

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

3. Diagnostic 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. Connector locations 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

servicer 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.

x Service Manual

4413-XXX

1. General information

The Lexm ark™ 4200 Series All-In-One (4413-XXX) is a letter quality print, fax, copy, and scan machine. It is a standalone color/mono copier and fax. The printhead uses small heater plates and nozzles to control ink flow and the formation of characters on the print media. The printhead assembly and ink supply are combined into a single unit. Print cartridges are available as a customer replaceable supply item. Dual printheads provide color and true black printing without changing printheads. The number and size of inkjets or nozzles, in the printhead, determines the overall quality and capability of the printer. The black cartridge has a total of 208 nozzles and installs on the right. The color cartridge has a total of 192 nozzles and installs on the left. The printer is capable of printing in both directions from either cartridge.

4250 4270

4413-K01 4413-K03 4413-AK1 (DBCS) 4413-AK3 (DBCS) No handset Handset

General information 1-1

4413-XXX

Specifications

Print engine

Technology Thermal Inkjet

2-pin and printhead swapping type

Speed Color 10 ppm at Draft Mode

Mono 17 ppm at Draft Mode

Resolution Color/Mono Quick Print: 300 x 600 dpi

Normal: 600 x 600 dpi Better: 1200 x 1200 dpi Best: 4800 x 1200 dpi for

photo paper

Best: 2400 x 1200 dpi for

other paper Printing Width 203 mm Feeding Method Automatic 100 sheets of 20 lb cut s heets

Manual Tray No Emulation Host Based Printing (GDI) Printer Driver Windows 98/ME, Windo ws

Interface USB Interface

(Max 10 mm)

2000/Windows XP

Printhead

Babbage Mono Standard Birch Color

Printhead 208 nozzles 192 nozzles Ink Type Pigment Dye Ink Color Black Color Ink Yield About 600 sheets About 450 sheets

1-2 Service Manual

4413-XXX

Facsimile

General Scan Method CIS

Scan Width Maximum 216 mm, Minimum 76.2 mm Feeding Method Sheet Feed ADF 30 sheets of 20 lb Guide Document Input Guide Stacker Document Output Stacker/Paper

Paper Tray Bin Type (without Manual Tray) Modem Speed 33.6 Kbps LCD 2 lines of 16 characters each

Scanning Resolution Optical Resolution: 600 dpi (H) x 1200

Contrast Darkest/Darken/Normal

Telephone Speed Dial 79 locations

On-Hook Dial Yes Last Number Redial Yes Auto Redial Yes Ringer Volume S/W Option Setting (4 steps) Tone/Pulse Select S/W Option Setting

Report and List

Telephone Number List

Stacker

dpi (V) Interpolated: 9600 dpi x 9600 dpi

Lighten/Lightest

Yes

Self Test Yes

Copy Multipage Copy Up to 99 pages

Grayscale 256 levels Reduction and

Enlargement

25% - 200% (Reference is the top cent er of document.)

General information 1-3

4413-XXX

Telephone I/F

Others Sensors Paper Jam

Answering I/F Yes Extension Phone 1-jack, extension phone transfer

Clock Yes

Scanner

Compatibility TWAIN Technology Platen CIS Light Source for Color CIS RGB LEDs (Line Order Control)

Power and size

Power Source 100V-127V with 2-wire power cord fixed

Dimensions 440.6 X 319.6 X 205.4 mm

100V-127V with 2-wire separa te po w er cord (Japan) 220V-240V with 2-wire A C inle t sep ar ate power cord Energy Star Compliant (with 1 watt regulation)

Weight (Packed) 15.3 lbs (Pac ked Weight)

1-4 Service Manual

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Abbreviations

AIO All-In-One ASF Auto Sheet Feed B/M Bill of Material CIS Contact Image Sensor EOF End of Form ESD Electrostatic Discharge FPC Flat Printhead Cable FRU Field Replaceable Unit GDI Graphic Display Interface HVPS High Voltage Power Supply LCD Liquid Crystal Display LVPS Low Voltage Power Supply OEM Original Equipment Manufacturer V ac Volts alternating current V dc Volts direct current ZIF Zero Insertion Force

General information 1-5

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1-6 Service Manual

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2. Diagnostic information

Start

Power-On Self Test (POST) sequence

1. Lexmark 4200 Series is displayed on the LCD.

2. Power, Fax, Copy, Scan and Auto Answer lights turn on.

3. Copy and Scan button lights turn on.

4. Carrier moves to the left and returns to the maintenance station. The paper feed motor runs then stops.

5. Enter Fax Number is displayed.

6. Date and Time display when POST is complete.

If your printer completes POST with errors, go to the “Symptom

tables” on page 2-3. Locate the symptom and take the indicated

action. If your printer does not complete POST, locate the symptom in the

following table and take the indicated action.

Diagnostic information 2-1

4413-XXX

POST symptom table

Symptom Action

LCD or Control Panel b uttons do not work and no motors run

Paper f ee d gears do not turn

Carrier does not move

Carrier slams side frame

CIS light does not turn on

Go to the “P ower service check ” on page 2-14. If okay, go to the “Control panel problems” on page 2-3.

Go to the “Paper feed service check” on page 2-11.

Go to the “Carrier transp ort service chec k ” on

page 2-6.

Go to the “Carrier transp ort service chec k ” on

page 2-6.

Go to the “CIS assembly service check” on page 2-8.

2-2 Service Manual

4413-XXX

Symptom tables

Locate the symptom in the following tables and take the appropriate action.

Carrier transport problems

Symptom Action

• No carrier movement

• Slow carrier movement

• Carrier stops

• Carrier slams side frame

Go to the “Carrier transport

service check” on page 2-6.

Maintenance station problems

Symptom Action

Maintenance station:

• Fails to cap the printheads

• Fails to clean the printheads

Go to the “Maintenance station

service check” on page 2-10.

Control panel problems

Symptom Action

• Buttons do not work

• LCD does not display

Check control panel cable connection at CN5 on the system board. Run the “Power-On Self

Test (POST) sequence” on page 2-1. If the LCD or buttons fail,

check connection CN5. If the problem rem ains , replac e the control panel assembly. Go to the “Control

panel assembly removal” on page 4-13.

If the problem sti ll e xists , rep lace the system board. Go to the “System

board removal” on page 4-19.

Diagnostic information 2-3

4413-XXX

Symptom Action

Document scan sensor does not detect document

Check control pane l ca b le c onnec tor CN5 on the system board . If oka y, go to the “Scanner motor with gear

assembly service check” on page 2-9. If the scanner motor is

working correctly, replace the control panel assembly. Go to the “Control

panel assembly removal” on page 4-13.

Printer communication problem

Symptom Action

Not able to print Self Test Page Check the USB cable and system

board cable connections. If okay, replace system board. Go to the

“System board removal” on page 4-19.

Phone handset/cradle problem

Symptom Action

No dial tone Handset does not work

Check all phone connections. Be sure the main phone connection is connected to the printer.Check pins 5 and 6 for approximately 3 volts on connector CN11 located on the system board. If voltage is not correct, replace the system boa rd. Go to the “System bo ard remov a l ”

on page 4-19. If problem still exists,

replace the handset and cradle. Go to “Handset and cradle removal”

on page 4-24.

2-4 Service Manual

4413-XXX

Scanner problems

Symptom Action Light does not turn on Go to the “CIS assembly service

• Scanned images are faded, or colors are dull, blurry or fuzzy. Images are slanted or crooked and the straight lines in the image appear to be jagged or uneven.

• Blank copie s

• Scanner motor does not run

• Document sensor does not

work

• CIS white roller assembly slips

• Paper does not feed correctly

check” on page 2-8.

Go to the “Scan/copy quality

service check” on page 2-17.

Go to the “Scanner m o tor with

gear assembly service c h eck” on page 2-9.

Go to the “Control panel

problems” on page 2-3.

Go to the “Paper path service

check” on page 2-13.

Paper feed problems

Symptom Action

• Fails to pick paper

• Picks more than one sheet of

paper

• Picks paper but fails to feed

• Paper jams

• Paper fails to exit

• Noisy paper feed

Go to the “Paper feed service

check” on page 2-11.

Envelopes fail to feed Go to the “Paper feed service

check” on page 2-11.

Paper sk e ws Go to the “Paper path service

check” on page 2-13.

Diagnostic information 2-5

4413-XXX

Power problems

Symptom Action

No power in machine, motors do not operate

Go to the “Power service check”

on page 2-14.

Print quality problems

Symptom Action

• Voids in characters

• Light print

• Prints off the page

• Fuzzy print

• Carrier moves but no print

• Printhead dries prematurely

• Colors print incorrectly

• Vertical alignment off

• Ink smearing

• Vertical streaks on paper

• Print lines crowded

Go to the “Print quality service

check” on page 2-15.

Go to the “Paper feed service

check” on page 2-11.

Service checks

Carrier transport service check

FRU Action

1 System Board

Carrier Transport Motor

2-6 Service Manual

Check the carrier transport motor connector CN3. If connected, check for approximately 30 volts on pins 1 and 3 or at the wire connections located on the rear of the carrier transport motor. If voltage is incorrect, replace the system board. If voltage is correct, check the motor for shorts. If a short is found, repla ce the motor. Go to “Carrier transport

motor removal ” on page 4-24.

4413-XXX

FRU Action

2 Carrier Transport

Motor

Check the motor for binds, or loose motor pulley. A noisy or chattering motor, or a motor that fails to

turn, can be caused by:

• An open or short in the motor

• An open or short in the motor driver

on the system board

• A bind in the carrier transport

mechanism

With the carrier transport motor cable (CN3) disconnected from the syst em board, che ck for 0 to 16 ohms between the following pins on the motor:

CN3-2 and CN3-3

If the readings are incorrect, replace the print engine. Go to the “Print engine removal” on

page 4-16.

3 Carrier Guide Rod Clean the carrier rod.

Note: Lubricate the rod and th e carrier rod bea ring surfaces with grease P/N 99A0394.

4 Encoder Strip

Carrier Assembly with Belt

Check the encoder strip for proper installation. Also, ch eck it for w ea r, dirt, and grease. R ep lac e i f needed.

Be sure all printhead connectors are fully seated. Check the cables for damage.

5 Carrier Transport

Belt Idler Pulley Assembly

If the encoder strip and all connections are okay, but the carrier still slams the side frame, replace the carrier assembly with belt. Go to the “Carrier

assembly with belt removal” on page 4-18. If

problem remai ns , replac e the system board. G o to the “System board removal” on page 4-19.

Check for worn, loose or broken parts. Check for obstructions blocking carrier movement. If pulley assembly is damaged, replace.

Lubricate carrier to carrier frame e ngagemen t with grease P/N 99A0394.

Diagnostic information 2-7

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