wc480 service manual

Transmittal PageProduct

WorkCentre 480cx

Title

Service Manual

Part Number

701P14810

Status

Initial IssueDate

April 1999

inder Inserts - Cut on the dotted lines

rk48ce

80

Wo

Servi

WorkCentre 4B

Centre0cx Manual

cx Service Manual

XEROX

CAUTIONe Main PBA has a lithium battery which ist spared item. If the Main PWB fails, return assembly to the Xerox premises forposal in accordance with local regulations. NOT SHORT CIRCUIT THE BATTERYRMINALS.

components in this product aretible to damage from electrostaticge. Observe all ESD procedures to avoident damage.WorkCentre 480cxService Manual

701P14810April 1999

ThnothedisDOTE

Certainsuscepdischarcompon

NOTICEAll service documentation is supplied to Xerox

external customers for informational purposesonly. Xerox service documentation is intended foruse by certified, product trained service personnelonly. Xerox does not warrant or represent thatsuch documentation is complete. Nor does Xeroxrepresent or warrant that it will notify or provide tosuch customer any future changes to thisdocumentation. Service by the customer ofequipment, or modules, components, or parts ofsuch equipment may void any otherwiseapplicable Xerox warranties. If Customerservices such equipment, modules, components,or parts thereof, Customer releases Xerox fromany and all liability for actions by the Customer,and Customer agrees to indemnify, defend, andhold Xerox harmless from any third party claimswhich arise directly or indirectly from suchservice.

Prepared by:Xerox CorporationCustomer & Service Support898-20A300 East Main Street EastEast Rochester, NY. 14445

1999 by Xerox Corporation. All rights reserved.Xerox and all Xerox products mentioned in thispublication are registered trademarks of the XeroxCorporation.

Revision Control List


evision Page RevisionWorkCentre

ProductWorkCen

Page RTitleiiiiiivvviviiviii

1-11-21-31-41-51-61-71-81-91-101-111-12tre 480cxTitleService Manual

Part Number701P14810

evision2-12-22-32-42-52-62-72-82-92-102-112-122-132-142-152-162-172-182-192-202-40

3-13-2

Page Revision4-14-24-34-44-54-64-74-84-94-104-114-124-134-144-154-164-174-184-194-204-214-224-234-24

Page Revision6-16-26-36-46-56-66-76-86-96-106-116-126-136-146-156-166-176-18

7-17-27-37-47-5

Page Revision Page R 480cx4/99

3-33-43-53-6

5-15-25-35-45-55-65-75-85-95-10

7-67-77-87-97-107-117-12

iii

WorkCentre 480cx

Table of ContentsTable of Contents4/99

Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - vAbout this manual - - - - - - - - - - - - - - - - - - - - - vOrganization - - - - - - - - - - - - - - - - - - - - - - - - - vHow to use this manual - - - - - - - - - - - - - - - - - vManual Revision Symbols- - - - - - - - - - - - - - - - viModel Distinction - - - - - - - - - - - - - - - - - - - - - - viTerminology and Symbols- - - - - - - - - - - - - - - - viModification- - - - - - - - - - - - - - - - - - - - - - - - - - vi

1. Service Call Procedures - - - - - 1-1Section Contents- - - - - - - - - - - - - - - - - - 1-1

2. Subsystem Repair Analysis Procedures - - - - - - - - - - - - - - - 2-1Section Contents- - - - - - - - - - - - - - - - - - 2-1

3. Image Quality RepairAnalysis Procedures - - - - - - - - 3-1Section Contents- - - - - - - - - - - - - - - - - - 3-1

4. Repair/Adjustment- - - - - - - - - - 4-1Section Contents- - - - - - - - - - - - - - - - - - 4-1

5. Parts Lists - - - - - - - - - - - - - - - - 5-1Section Contents- - - - - - - - - - - - - - - - - - 5-1

6. General ProceduresInformation - - - - - - - - - - - - - - - - -6-1Section Contents- - - - - - - - - - - - - - - - - - 6-1

7. Wiring Data - - - - - - - - - - - - - - - 7-1Section Contents- - - - - - - - - - - - - - - - - - 7-1

iv

Introduction

Introduction Section 5 Parts ListThis section consists of illustrations and part

How to use this manualStart all service calls and end all service calls with

e Call Procedures, Section 1. Performons and the System Check to identify a

instructions provided within the Servicedures and proceed to the appropriate

the manual.repair is complete, verify the repair with

Check.WorkCentre 480cx4/99

About this manualThis manual is part of the multinationaldocumentation that is structured in a specifiedXerox format.

OrganizationThe Xerox Document WorkCentre 480cx ServiceManual is the primary document used for repairingand maintaining the family of products. Themanual contains this information divided into thefollowing sections:Section 1 Service Call Procedures

This section is used to identify the first audibleor visual symptom for the problem. Theprocedures will then direct you to a RAP orthey identify a faulty component orsubassembly.

Section 2 Repair Analysis ProceduresThis section contains Repair AnalysisProcedures (RAPs). You will be directed tothis section to isolate a faulty component orsubassembly.

Section 3 Image Quality Repair Analysis Procedures

This section contains Image Quality RepairAnalysis Procedures (IQ RAPs) and ImageQuality samples. You will refer to this sectionto identify test pattern samples or isolationprocedures for common image qualitydefects.

Section 4 Repair / AdjustmentThis section contains the instructions forremoval, replacement, and adjustment of thespared parts within the machine.

number lists. Any part that is spared or anypart that must be removed to access a sparedpart is illustrated. Common hardware isshown as a letter callout.

Section 6 General Procedures / InformationThis section contains general procedures,product specifications, supplemental toolsand supplies, Tag/MOD information, andinstallation instructions.

Section 7 Wiring DataThis section contains illustrations and lists ofthe signals and connectors. The illustrationsshow the power, ground, and the controlsignal distribution. The lists show the signalsand pin assignments for all connectors.

the ServicInitial Actisymptom.Follow theCall Procesection ofAfter the the System

v

WorkCentre 480cx

Manual Revision SymbolsRevision pages containing the latest service

Model Distinction Electro Static Discharge

mponents in this product are susceptiblee from electrostatic discharge. Observeocedures to avoid component damage.

WARNINGImproper operation may result ininjury to a person.

CAUTIONer operation may result in machine.

: Hints or other information that ssist the user.

ation

ine serial number listed will identify thenumber of the change on thered machine.Introduction4/99

information will be sent to you so that you canupdate your service manual. When a partialrevision is distributed, the changes will beidentified on each page.Text Black vertical bar at the beginning of

the text for partial revisions.When a partial revision or a complete manualrevision is distributed, the changes will also beidentified as follows:Page The date of issue on the bottom of

each page.Manual An updated revision control list. This

list will identify the latest date foreach page.

TEXTIf different parts or actions exist because ofdifferent models, the model distinction (xxx) willidentify the appropriate part or action.Example 1). - - - - - - - xxx: The sequence is . . . .Example 2) - - - - - - - The sequence is . . . (xxx) .Terminology and SymbolsThe following is the terminology and symbols thatare used in this manual for Warnings, ElectrostaticDevice or general Cautions, and Notes.

Certain coto damagall ESD pr

Impropdamage

NOTEmay a

ModificThe machearliest manufactu

vi

Transmittal PageProduct

WorkCentre 480cx

Title

Service Manual

Part Number

701P14810

Status

Initial IssueDate

April 1999

inder Inserts - Cut on the dotted lines

rk48ce

80

Wo

Servi

WorkCentre 4B

Centre0cx Manual

cx Service Manual

XEROX

CAUTIONe Main PBA has a lithium battery which ist spared item. If the Main PWB fails, return assembly to the Xerox premises forposal in accordance with local regulations. NOT SHORT CIRCUIT THE BATTERYRMINALS.

components in this product aretible to damage from electrostaticge. Observe all ESD procedures to avoident damage.WorkCentre 480cxService Manual

701P14810April 1999

ThnothedisDOTE

Certainsuscepdischarcompon

NOTICEAll service documentation is supplied to Xerox

external customers for informational purposesonly. Xerox service documentation is intended foruse by certified, product trained service personnelonly. Xerox does not warrant or represent thatsuch documentation is complete. Nor does Xeroxrepresent or warrant that it will notify or provide tosuch customer any future changes to thisdocumentation. Service by the customer ofequipment, or modules, components, or parts ofsuch equipment may void any otherwiseapplicable Xerox warranties. If Customerservices such equipment, modules, components,or parts thereof, Customer releases Xerox fromany and all liability for actions by the Customer,and Customer agrees to indemnify, defend, andhold Xerox harmless from any third party claimswhich arise directly or indirectly from suchservice.

Prepared by:Xerox CorporationCustomer & Service Support898-20A300 East Main Street EastEast Rochester, NY. 14445

1999 by Xerox Corporation. All rights reserved.Xerox and all Xerox products mentioned in thispublication are registered trademarks of the XeroxCorporation.



evision Page RevisionWorkCentre

ProductWorkCen

Page RTitleiiiiiivvviviiviii

1-11-21-31-41-51-61-71-81-91-101-111-12tre 480cxTitleService Manual

Part Number701P14810

evision2-12-22-32-42-52-62-72-82-92-102-112-122-132-142-152-162-172-182-192-202-40

3-13-2

Page Revision4-14-24-34-44-54-64-74-84-94-104-114-124-134-144-154-164-174-184-194-204-214-224-234-24

Page Revision6-16-26-36-46-56-66-76-86-96-106-116-126-136-146-156-166-176-18

7-17-27-37-47-5

Page Revision Page R 480cx4/99

3-33-43-53-6

5-15-25-35-45-55-65-75-85-95-10

7-67-77-87-97-107-117-12

iii

WorkCentre 480cx

Table of ContentsTable of Contents4/99

Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - vAbout this manual - - - - - - - - - - - - - - - - - - - - - vOrganization - - - - - - - - - - - - - - - - - - - - - - - - - vHow to use this manual - - - - - - - - - - - - - - - - - vManual Revision Symbols- - - - - - - - - - - - - - - - viModel Distinction - - - - - - - - - - - - - - - - - - - - - - viTerminology and Symbols- - - - - - - - - - - - - - - - viModification- - - - - - - - - - - - - - - - - - - - - - - - - - vi

1. Service Call Procedures - - - - - 1-1Section Contents- - - - - - - - - - - - - - - - - - 1-1

2. Subsystem Repair Analysis Procedures - - - - - - - - - - - - - - - 2-1Section Contents- - - - - - - - - - - - - - - - - - 2-1

3. Image Quality RepairAnalysis Procedures - - - - - - - - 3-1Section Contents- - - - - - - - - - - - - - - - - - 3-1

4. Repair/Adjustment- - - - - - - - - - 4-1Section Contents- - - - - - - - - - - - - - - - - - 4-1

5. Parts Lists - - - - - - - - - - - - - - - - 5-1Section Contents- - - - - - - - - - - - - - - - - - 5-1

6. General ProceduresInformation - - - - - - - - - - - - - - - - -6-1Section Contents- - - - - - - - - - - - - - - - - - 6-1

7. Wiring Data - - - - - - - - - - - - - - - 7-1Section Contents- - - - - - - - - - - - - - - - - - 7-1

iv

Introduction

Introduction Section 5 Parts ListThis section consists of illustrations and part

How to use this manualStart all service calls and end all service calls with

e Call Procedures, Section 1. Performons and the System Check to identify a

instructions provided within the Servicedures and proceed to the appropriate

the manual.repair is complete, verify the repair with

Check.WorkCentre 480cx4/99

About this manualThis manual is part of the multinationaldocumentation that is structured in a specifiedXerox format.

OrganizationThe Xerox Document WorkCentre 480cx ServiceManual is the primary document used for repairingand maintaining the family of products. Themanual contains this information divided into thefollowing sections:Section 1 Service Call Procedures

This section is used to identify the first audibleor visual symptom for the problem. Theprocedures will then direct you to a RAP orthey identify a faulty component orsubassembly.

Section 2 Repair Analysis ProceduresThis section contains Repair AnalysisProcedures (RAPs). You will be directed tothis section to isolate a faulty component orsubassembly.

Section 3 Image Quality Repair Analysis Procedures

This section contains Image Quality RepairAnalysis Procedures (IQ RAPs) and ImageQuality samples. You will refer to this sectionto identify test pattern samples or isolationprocedures for common image qualitydefects.

Section 4 Repair / AdjustmentThis section contains the instructions forremoval, replacement, and adjustment of thespared parts within the machine.

number lists. Any part that is spared or anypart that must be removed to access a sparedpart is illustrated. Common hardware isshown as a letter callout.

Section 6 General Procedures / InformationThis section contains general procedures,product specifications, supplemental toolsand supplies, Tag/MOD information, andinstallation instructions.

Section 7 Wiring DataThis section contains illustrations and lists ofthe signals and connectors. The illustrationsshow the power, ground, and the controlsignal distribution. The lists show the signalsand pin assignments for all connectors.

the ServicInitial Actisymptom.Follow theCall Procesection ofAfter the the System

v

WorkCentre 480cx

Manual Revision SymbolsRevision pages containing the latest service

Model Distinction Electro Static Discharge

mponents in this product are susceptiblee from electrostatic discharge. Observeocedures to avoid component damage.

WARNINGImproper operation may result ininjury to a person.

CAUTIONer operation may result in machine.

: Hints or other information that ssist the user.

ation

ine serial number listed will identify thenumber of the change on thered machine.Introduction4/99

information will be sent to you so that you canupdate your service manual. When a partialrevision is distributed, the changes will beidentified on each page.Text Black vertical bar at the beginning of

the text for partial revisions.When a partial revision or a complete manualrevision is distributed, the changes will also beidentified as follows:Page The date of issue on the bottom of

each page.Manual An updated revision control list. This

list will identify the latest date foreach page.

TEXTIf different parts or actions exist because ofdifferent models, the model distinction (xxx) willidentify the appropriate part or action.Example 1). - - - - - - - xxx: The sequence is . . . .Example 2) - - - - - - - The sequence is . . . (xxx) .Terminology and SymbolsThe following is the terminology and symbols thatare used in this manual for Warnings, ElectrostaticDevice or general Cautions, and Notes.

Certain coto damagall ESD pr

Impropdamage

NOTEmay a

ModificThe machearliest manufactu

vi

Introduction

1. Service Call Procedures

that a service technician must problem at a customer site. Service Call Procedure.ther sections when diagnosing

0. You should always return to this ice Call Procedure.

chapter in the order given. By ures, you may diagnose a he customer undue frustration and

er information regarding the prepare the product for servicing.ify the normal operation of the system checks, a Yes response No response will indicate the next to a RAP.s to isolate the faulty part or hen isolation is not possible.ins routine maintenance

res you carry out when completing

ge uct are susceptible to damage serve all ESD procedures to avoid Wo

Se

IntEleIniSySuFin4/991 - 1rkCentre 480cx

ction Contents

roduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1ctro Static Discharge - - - - - - - - - - - - - - - - - - - 1-1

tial Actions - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3stem Check - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4bsystem Cleaning and Maintenance- - - - - - - - 1-12al Actions - - - - - - - - - - - - - - - - - - - - - - - - - - 1-12

Introduction

This chapter describes the taskscomplete when responding to a Collectively, these tasks are the These procedures direct you to oand repairing the WorkCentre 48section to continue with the ServComplete the procedures in thisignoring the sequence of procedsymptom incorrectly and cause texpense.Initial Actions are used to gathperformance of the machine andSystem Checks are used to vermachine. In the Y/N steps of thewill lead you to the next step. A step to perform or will direct youRAPs will provide the instructionprovide a list of suspect parts, wSubsystem maintenance contaprocedures.Final Actions describe proceduthe service call.

Electro Static DischarCertain components in this prodfrom electrostatic discharge. Obcomponent damage.

THIS PAGE INTENTIONALLY LEFT BLANKWorkCentre 480cxIntroduction4/991 - 2

Go to Control Panel RAP 7.1

Go to AC/DC Power Check RAP 2.1

Initial ActionsIf possible perform the following before you begin the initial actions: If you are performing on-site service,

print the System Data List. This will provide you with the customers settings to allow you to restore them later.

If you are performing on-site service, print out Telephone Numbers List.

Enter Service Mode by pressing , #, 1, 9, 3, 4. LCD displays T in the lower right corner.

Reset machine to defaults. ,5.

Enter Service Mode again.Then enter fax name and ID number.

Initial Actions

Unit appears to have power?

NO

YESNO

NO

YES

Busy and Alarm LEDs come on for approximately 4 seconds and then turns off.

The fo llow ing m essagesappear du ring pow er up:

Load paper in the APF. Connect

Disconnect and reconnect powercord. Observe unit.

the (LINE) connector to a known good telephone line. Disconnectany external devices connectedto (EXT) connection. Initial Actions

Go to Control Panel Messages RAP 1.1

Go to Carriage Motor RAP 4.1

* Display may be slightly different depending on language, date, and time.

G o to P aper Feed R AP 3.1

G o to Contro l P ane l R AP 7 .11. All segments black4/991 - 3WorkCentre 480cx

The following message appearson the LCD screen:

Perform System Self Test on the following page, orif you have a known symptom, go to the appropriatesystem check in this chapter.

* MAR - 01 - 1999 100% 01 : 30 PM FAX

YES

NO

The APF motor rotates.NO

The Carriage motor drives andreturns to the Maintenance Station.

NO

YES

YES

YES

2. Powering Up.. .please wait

o to Carriage Motor RAP 4.1.

o to Control Panel RAP 7.1.

o to Paper Feed RAP 3.1.

o to Control Panel RAP 7.1.f no tones are heard, go to ommunications RAP 6.1.System CheckThe initial actions you performed on the previous page performed a quick initial check of the power system, circuit boards, control panel, paper feed, and the printer engine.

After you perform the Initial Actions, perform a system check using the flowcharts on the following pages.

The System Check will help identify any problems and refer you to the appropriate RAP or REP.

After you have repaired any problem, perform this system check again, and then perform the Final Action procedure.

Paper feed motor activates and

G

G

G

System Check: Self TestNO

YES

Press , 13, . Tone

YES

Control Panel responds to input?

Carriage motor moves left, centers, then returns right tothe Maintenance Station.

YES

NO

NO

NO

sounds when buttons are pressed.

GIC

The following message appearson the LCD screen:

SELECT FUNCTION ONE TOUCH [1 - 20]

SELF TEST? ...PrintingWorkCentre 480cx

feeds paper correctly?

f Carriage does not moveorrectly, go to Carriage Motor RAP.1. If paper does not feed correctlyo to Paper Feed RAP 3.1.

o to Image Quality RAPs.

f no message appears, go to

f any other message displays,o to Control Panel Messages RAP 1.1.

ay vary slightly depending on ate and time.

ontrol Panel RAP 7.1.System Check4/991 - 4

Carriage moves back and forth, Icprinting the image, paper feeds

correctly during printing. 4g

G

The following message appearson the LCD screen: I

Ig

YES

YES

NO

NO

YES

* MAR - 01 - 1999 100%

01 : 30 PM FAX

YES

* Display mlanguage, d

NO

C

Test print completes with

Perform System Copier Test on the following page.

acceptable image quality.Check for latest F/W level.

Scanner motor does notactivate or document feedsincorrectly. Go to DocumentFeed RAP 5.1.System Check (continued)Continue the Initial Actions flowchart on this page to check the scanner assembly, LCU, and fax capabilities.

M ake a copy. Inse rt the docum entp rin t side dow n in to the AD F.

System Check: Copier Test

NO

YES

Document feeds part way into the scanner and stops.

MAR - 01 1999 100%

display approx. every 3 sec.

Display alternates between theabove display and standby

NO

The follow ing m essage appearson the LCD :

01 : 30 PM FAX

YES

MAR - 01 1999 100%DOCUMENT READY

A LTE RN AT IN GM ES SA GE SSystem Check (continued)

If no message appears, go to Control Panel RAP 7.1.

go to Control Panel MessagesRAP 1.1

If any other message displays,4/991 - 5WorkCentre 480cx

C ontinued on fo llow ing page

YES

YES

YES

Press COPY. Display shows: COPY PAGES [01 - 99] < 01>Right digit for number of copiesflashes.

Press START. Display shows:

COPY RATE [25-200]% R igh t d ig it fo r pe rcen t flashes .

Press START. Display shows: COPY COLLATE 1. ON 2. OFFPress START. Display shows:

NO

NO

COPYPAGE 1

Carriage moves back and forth, If ink carrier does not m ovecorrectly, go to Carriage M otorprinting the image, paper feeds

correctly during printing. R AP 4 .1 . If paper does no t feed co rrectly, go to Paper Feed R AP 3 .1 .

System Check: Copier Test (continued)

NO

Paper feed motor activates andfeeds paper correctly? Go to Paper Feed RAP 3.1.

T h e d ocu m e n t fe e ds a ll th ew a y th ro u gh the sc an n er. T h esca n n er m o to r s top s a fte r th ed oc um e n t e je c ts .

NO

NOYES

YES

Go to Document Feed RAP 5.1.WorkCentre 480cx

YESSystem Check (continued) 4/991 - 6

Copy completes and thefollowing messages displayson the LCD momentarily:

Image quality is acceptable? Go to Image Quality RAPs.

Perform System Check Send Fax Teston the following page.

NO

NO

MAR - 01 - 1999 100% 01 : 30 PM FAX

YES

YES

If no m essage disp lays,go to Con tro l P anel R AP 7 .1.If any o the r m essage d isplays , go to Contro l Panel M essages R AP 1 .1.

The following message appearson the LCD:

System Check: Send Fax Test

Scanner motor does notactivate or document feedsincorrectly. Go to Document

D ia l the firs t d ig it o f the rem ote

NO

YES

MAR - 01 - 1999 100% DOCUMENT READY

YES

NO

NOIf no message displays go to Control Panel RAP 7.1.

Feed RAP 5.1.

Fax a document to a knowngood fax machine and using aknown good telephone line.

The document feeds part wayPlace a document in the ADF.

through the scanner and stops.System Check (continued)

Fa x num ber. LC D d isp lays: If any other message displays,4/991 - 7WorkCentre 480cx

Dial the remaining digits of theremote fax machine. Then

Continued on following page

TEL : 1

press . Display shows: SCAN TO MEMORY 100% PAGE 1

YES

YES

NO

NOThe document feeds all the

YES

way through the scanner. Thescanner motor stops after the document ejects.

go to Control PanelMessages RAP 1.1.

Go to Document Feed RAP 5.1.

The following (or similar)displays on the LCD:

System Check: Send Fax Test (continued)

YES

NO

The machine dials the remotefax. Tones o r pulse dia ls areaudible. D isplay shows:

Dialing . . . (number dialed)

(number dialed) TX.ECM P: 1/1

NO

If no message appears, goto RAP 7.1.If any other message displays,go to the Control Panel Messages RAP 1.1.If tone or pulse dial is not audibleWorkCentre 480cx

YES go to Communications RAP 6.1.System Check (continued) 4/991 - 8

The following (or similar)displays on the LCD:

The fax was received by theremote machine.

Go to Communications RAP6.1.

Perform System Check Receive FaxTest on the following page.

MAR - 01 - 1999 100% 01: 30 PM FAX

YES

YES

NO

NO

At a remote machine, dialthe customer number. Makesure Answer Mode is FAX.The customers machineanswers the incoming call.

System Check: Receive Fax test

Fax tones are audible.

NO

YES

YES

NO

NO

The following displays on the LCD:

RX

Go to Communications RAP 6.1.

If no message displays go to Control Panel RAP 7.1.If any other message displays,go to Control PanelMessages RAP 1.1.

Go to Communications RAP 6.1.System Check (continued)4/991 - 9WorkCentre 480cx

If no message displays go to Control Panel RAP 7.1.If any other message displays,go to Control Panel

Continued on following page

YES

YES

YES

NO

NO


(Remote ID) RX ECM P : 1


PRINTING . . .Messages RAP 1.1.

If Carrier does not movecorrectly, go to Carriage Motor RAP 4.1.

Go to Paper Feed RAP 3.1.

If paper does not feed correctly,go to Paper Feed RAP 3.1.

Paper feed motor activates and

Carriage moves back and forth,

feeds paper correctly?

printing the image, paper feedscorrectly during printing.

System Check: Receive Fax test (continued)

NO

YES

YES

NO

NOThe following displays on theLCD: MAR - 01 - 1999 100% 01: 30 PM FAX

If no message displays go to Control Panel RAP 7.1.If any other message displays,go to Control PanelMessages RAP 1.1.WorkCentre 480cxSystem Check (continued) 4/991 - 10

Go to Image Quality RAPs.Image quality is acceptable?

YESNO

YES

C ontinued on the fo llow ing page .

System Check: Features/Functions:

NO

YES

Remote Receive code works? Go to Communications RAP 6.1.

If problem has not beencorrected return toInitial Actions.System Check (continued)4/991 - 11WorkCentre 480cx

ree cloth and water or Formula A.

cause of any problems.Subsystem Cleaning and MaintenanceThe printer and scanner require periodic cleaning. When you are servicing the WorkCentre 480cx, perform the following procedures.Clean the following printer engine parts:

Description Procedure

Cover Clean using a lint free tissue and water or Formula A.

Paper Feed and Document Feed Roller

Clean using a lint free tissue, water, and Film Remover.

Maintenance Clean using a lint free

Final Actions

Clean the machines exteriorClean the exterior of the WorkCentre 480cx using a lint f

Restore the customers settingsDo not restore any settings that you suspected were the WorkCentre 480cx

Station tissue and water.Subsystem Cleaning and Maintenance4/99

1 - 12

Check all rubber items for wear and hardness.If worn or harder than normal, replace as required.

Carriage Shaft

Inspect the Shaft for damage (abrasions, wear marks, burrs). Clean the guide rod using Xerox film remover and a lint free cloth.

Next, use a lint free cloth to apply a thin film of grease 70H44 to the rail.

ADF Rubber Inspect for wear and replace as required.

Overview

2. Subsystem Repair Analysis Procedures

lysis procedures (RAPs). These g the defective subsystem. The ontinue the fault analysis to the

ve information. These RAPs may d Replacement Procedures

ge uct are susceptible to damage serve all ESD procedures to avoid Wo

SeRARARARARARARARARARARARA4/992 - 1rkCentre 480cx

ction ContentsP 1.1 Control Panel Messages - - - - - - - - - - - - - - - - - 2-2P 2.1 AC Power Check - - - - - - - - - - - - - - - - - - - - - - 2-4P 2.2 Power Supply DC Voltage Check - - - - - - - - - - - 2-5P 3.1 Paper Feed - - - - - - - - - - - - - - - - - - - - - - - - - - 2-7P 4.1 Carriage Motor - - - - - - - - - - - - - - - - - - - - - - - - 2-8P 4.2 Ink Cartridges- - - - - - - - - - - - - - - - - - - - - - - - - 2-9P 5.1 Document Feed - - - - - - - - - - - - - - - - - - - - - - 2-10P 6.1 Communications- - - - - - - - - - - - - - - - - - - - - - 2-11P 6.2 PC Connectivity - - - - - - - - - - - - - - - - - - - - - - 2-12P 7.1 Control Panel - - - - - - - - - - - - - - - - - - - - - - - - 2-16P 8.1 ADF Door Interlock - - - - - - - - - - - - - - - - - - - - 2-17P 9.1 ROM Test - - - - - - - - - - - - - - - - - - - - - - - - - - 2-20

Overview

This section includes repair anaprocedures aid you in diagnosinRAPs described in this section creplacement unit level.The RAPs include some correctilead to other RAPs or Repair an(REPs).

Electro Static DischarCertain components in this prodfrom electrostatic discharge. Obcomponent damage.

RAP 1.1 Control Panel Messages

A subsystem failure on the machine will, in most cases, report a message on the control panel.This RAP consists of a listing of messages and other symptoms that direct you to a RAP to further isolate the problem.This section does not list all possible messages or error codes that appear. Most messages are self explanatory.See the User Guide for other messages not listed.WorkCentre 480cxRAP 1.1 Control Panel Messages4/992 - 2

RAP 1.1 Control Panel Messages

WorkCentre 480 Control Panel Messages

Technician Actionper the User Go to RAP 4.2.

per the User Go to RAP 4.2.

Go to RAP 6.1.

Go to RAP 8.1.ar and clean the eload the

Go to RAP 5.1.

Go to RAP 4.2.Go to RAP 6.1.

d a document Go to RAP 5.1.

properly Go to RAP 6.1.

r in the APF inching paper.

Go to RAP 3.1.

dia is possible.l moistened with

the User Guide

Go to RAP 3.1

nd determine e power failure.

uccessful due to

Go to Initial Actions in Section 1 if you suspect there is a problem with the machine.

move your r.

Go to RAP 6.1.4/992 - 3WorkCentre 480cx

Message Meaning Operator Action(R) CARTRIDGE EMPTY(L) CARTRIDGE EMPTYALL CARTRIDGES EMPTY

The WorkCentre did not detect a Cartridge installed in the position called out in the display.

Remove and reinstall the Cartridge Guide instructions.

CARTRIDGE MISMATCH The Cartridge is not correctly installed in the machine.

Remove and reinstall the Cartridge Guide instructions.

COMM. ERROR There is a fax communications problem. Try the operation at a later time.Turn on ECM and try again.

COVER OPEN The Cartridge Cover is open. Close the Cartridge Cover.DOCUMENT JAM The document did not feed properly

through the ADF and Scanner.Ensure Control Panel is closed. Clefeed rollers and ADF Rubber Pad. Rdocuments and try again.

INK OUT The Cartridge may be out of ink. Install the appropriate cartridge.LINE ERROR Your machine cannot connect with the

remote site, or it has lost contact because of a problem on the phone line.

Try the operation at a later time.Turn on ECM and try again.

LOAD DOCUMENT You have attempted to set up an operation that requires loading a document.

Ensure Control Panel is closed. Loaand try again.

NO LINE CONNECTION The WorkCentre was not able to detect a dial tone.

Make sure the (LINE) connection is connected to a telephone line.

NO PAPER The WorkCentre is out of paper. Load up to 100 sheets of 20lb. papepaper tray. Ensure guides are not p

PAPER JAM The print media did not feed properly through the printer.

Press STOP to remove the print meClean the rollers with a lint free towewater or alcohol.Reload the print media according toinstructions.

POWER FAILURE A power failure occurred with documents stored in memory which caused a Power Failure Report to be printed out automatically when power was restored.

Examine the Power Failure Report awhat was in process at the time of thPerform the operation that was not sthe power failure.

RETRY REDIAL ? The WorkCentre was not able to connect to the remote machine or encountered a busy signal.

Wait and let the machine redial or redocuments and try the operation late

o 264 VAC between live and neutral and

ins.C

lyRAP 2.1 AC Power CheckNote: If any of the AC voltage measurements are not within the specifications, a qualified electrician retained by the customer must make the required repairs. If you later find the condition is not corrected, inform your manager in writing of the improper wiring.

1. 110 VAC: Voltage at the wall receptacle must be from 90 VAC to 132 VAC between AC hot and AC neutral and between AC hot and GND. Voltage should be less than 3 VAC between GND and neutral (see Figure 2-1).

AC HotGNDAC Neutral

2. 220 VAC: Voltage at the wall receptacle is 180 VAC tbetween live and earth.Voltage should be 3 VAC or less betweenearth and neutral (Figure 2-2).

Figure 2-2. 220 VAC Receptacle3. EUROPE (excluding the UK): Voltage at the wall

receptacle is 180 VAC to 264 VAC between supply pVoltage between one supply pin and earth is 197 VA

Neutral Earth Live

Supp

EarthWorkCentre 480cx

to 264 VAC. Voltage between the other supply pin and

e

ly DC Voltage Check.RAP 2.1 AC Power Check4/992 - 4

Figure 2-1. 110 VAC Receptacle

earth is 3 VAC or less (Figure 0-4).If the voltage is not correct, notify the customer of thelectrical requirements.

4. If the voltage is correct, go to RAP 2.2: Power Supp

y.out-of

or motor.

REP 3.3 Scan Motor/Gear Assembly.

on?.

eRAP 2.2 Power Supply DC Voltage Check

See Parts List 3.11. Prepare to test the power supply by

performing the following REPs: REP 1.2 Rear Cover Assembly

2. Apply power to the machine.

WARNING

There are exposed areas of high voltage on the power supply. Use caution when working in this area with the multimeter probes.

3. Using a multimeter, place the Common lead to the GND terminal at the left front corner of the power supply (viewed from the rear).

No: Replace the power supply REP 3.4 Power SupplYes: There is no problem with the power supply. The

tolerance voltage readings you encounteredmay be a result of a problem with a circuit boardGo to Step 8.

8. Disconnect J2 from the Main PBA.Perform step 3 voltage checks.Result: All voltages are within tolerances?

No: Disconnect J1 from the Main PBA. Go to Step 9.Yes: Theres a problem with the Scan Motor. Replace9. Perform step 3 voltage checks.

Result: Power supply readings are within specificatiNo: Disconnect J3 from the Main PBA. Go to Step 10Yes: Theres a problem with the control panel. Replac Power Supply DC Voltage Check

Place the Positive lead to the REP 1.4 Control Panel Assembly.

on?11.

on?.

ce PBA.

on?.

P 3.5 LIU PBA.RAP 2.2WorkCentre 480cx4/992 - 5

following pins on P/J6 on the Main PBA: Pin 6-1 (Red Wire) = +4.35 VDC

to +4.65 VDC Pin 6-3 (Red Wire) = +11.1 VDC

to +12.3 VDC Pin 6-6 (Blk Wire) = +28.5 VDC

to +31.5 VDCResult: All voltages are within tolerances?

No: Go to step 4.Yes: Power supply is good.4. Disconnect power from the machine.5. Carefully disconnect Power Supply

connector J6 from the Main PBA.6. Apply power to the machine.7. Perform step 3 voltage checks.

Result: All voltages are within tolerances?

10.

Perform step 3 voltage checks.Result: Power supply readings are within specificati

No: Disconnect CN1 from the Main PBA. Go to Step Yes: Theres a problem with the CIS assembly.

Replace REP 3.2 CIS (Contact Image Sensor).11. Perform step 3 voltage checks.

Result: Power supply readings are within specificatiNo: Disconnect J7 from the Main PBA. Go to Step 12Yes: Theres a problem with the Parallel Cable Interfa

Replace REP 3.6 Parallel Cable Interface PBA.12. Perform step 3 voltage checks.

Result: Power supply readings are within specificatiNo: Disconnect J4 from the Main PBA. Go to Step 13Yes: Theres a problem with the LIU PBA. Replace RE

n?

Ink Cartridges. ssembly.13. Perform step 3 voltage checks.Result: Power supply readings arewithin specification?

No: Disconnect JP4 from the Main PBA. Go to Step 14.

Yes: Theres a problem with the Paper Feed Motor. Replace REP 4.9 Paper Feed Motor Assembly.

14. Perform step 3 voltage checks.Result: Power supply readings are within specification?

No: Disconnect J8 from the Main PBA. Go to Step 15.

Yes: Theres a problem with the Carriage Motor. Replace it.


Yes: Theres a problem with the Speaker.Replace REP 1.3 Top Cover Assembly.

18. Perform step 3 voltage checks.Result: Power supply readings are within specificatio

No: Replace REP 4.5 Main PBA.Yes: Theres a problem with the Carriage Assembly or

Replace the Cartridges, then REP 4.4 Carriage AWorkCentre 480cxRAP 2.2 Power Supply DC Voltage Check4/992 - 6


Yes: Theres a problem with the APF Tray Empty Sensor.Replace .

16. Perform step 3 voltage checks.Result: Power supply readings arewithin specification?


Yes: Theres a problem with the Cartridge Cover Interlock.Replace REP 1.3 Top Cover Assembly.


No: Disconnect JP1, JP2, and JP3 from the Main PBA. Go to Step 18.

F Paper Empty Sensor.NO PAPER message goes away? APF Tray Assembly.

re

andRAP 3.1 Paper Feed

See Parts List 4.1.This RAP will help isolate media feed problems in the printer.If paper or other media is not feeding or partially feeding into the printer, check for the following: Ensure the specified media is being used

with the WorkCentre 480 Damaged media Damaged or dirty paper feed roller and

items in the paper path.Correct any of these problems if they exist.1. Power on the WorkCentre without

paper loaded in the APF Tray Assembly.Result: The following message

4. Check wire harness from the Main PBA J8 to the APResult: Harness and connections appear good and

No: Reconnect the wire harness, or replace REP 4.2Yes: Continue with Step 5.5. Check the position of the paper feed cam. 6. Manually rotate the paper feed cam one complete

revolution. Note action of cam.Result: Cam mechanism operates freely?

No: Replace REP 4.2 APF Tray Assembly.Yes: Continue with Step 7.7. Check the Paper Path Sensor and Actuator to ensu

proper actuation when paper is feeding.8. Check voltage between GND and J4-1, J4-2, J4-3,

J4-4 on the Main PBA.Result: Voltage is between 26 VDC and 29 VDC?RAP 3.1 Paper Feed

appears on LCD: No: Go to RAP 2.2: Power Supply DC Voltage Check.

Main PBA.

etween pins on the motor wiring harness.

aper feed motor winding. If the resistance r winding.WorkCentre 480cx4/992 - 7

NO PAPERNo: Make sure the APF Paper Empty

Sensor is not jammed in the down position. Check the harness and replace if necessary. If the harness is okay, replace the Main PBA REP 4.5 Main PBA.

Yes: Continue with Step 2.2. Add paper to the APF Tray Assembly.

Result: The NO PAPER message goes away. Go to Step 3.

3. Check for a loose or damaged cable from J4 on the Main PBA.Result: Cable and connections appear good?

No: Reconnect the cable.Yes: Continue with Step 4.

Yes: Continue with Step 9.9. Replace REP 4.9 Paper Feed Motor Assembly.

If this does not solve the problem, replace REP 4.5 NOTE: You may choose to check the paperfeed motor for an open motor winding.

Disconnect P4. Table 2-1. gives the resistance values b

If the resistance is too low, then there is a short in the pis infinite, or too high, then there is an open in the moto

Table 2-1. Paper Feed Motor Winding Resistance

1st Pin 2nd Pin Resistance

1 2 11 - 13 ohms

3 4 11 - 13 ohms

RAP 4.1 Carriage Motor

See Parts List 4.11. Check for a loose or damaged wire

harness from the Main PBA JP4 to the Carriage Motor.Result: Harness and connectors appear good.

No: Reconnect the harness, or replace the Carriage Motor as required.

Yes: Continue with Step 2.2. Check the voltage between GND and

JP4-2 on the Main PBA.Result: Voltage is between +27 VDC and +32 VDC?

No: Go to RAP 2.2: Power Supply DC Voltage Check.WorkCentre 480cx

Yes: Continue with Step 3.RAP 4.1 Carriage Motor4/992 - 8

3. Replace REP 4.4 Carriage Assembly. If this does not solve the problem, replace REP 4.5 Main PBA.

NOTE: You may also choose to check the

Carriage Motor for an open motor winding.Disconnect JP4. Table 2-2. gives the resistance values between pins on the Carriage Motor wiring harness.

If the resistance is too low, then there is a short in the motor winding. If the resistance is infinite, or too high, then there is an open in the motor winding.

Table 2-2. Carriage Motor Winding Resistance


1 2 10 - 20 ohms

RAP 4.2 Ink Cartridges

See Parts List 4.11. Check that the ink cartridges are

properly seated.Result: Cartridges are properly seated and contain ink.

No: Correct the condition.Yes: Continue with Step 2.2. Check the ribbon cables from JP1, JP2

and JP3 on the Main PBA. Make sure they are not damaged or loose.Result: The cables and connections are good?

No: Reconnect the cables, or replace as required.

Yes: Continue with Step 3.3. Power on the unit.RAP 4.2 Ink CartridgesWorkCentre 480cx4/992 - 9

Result: Power-on test reports cartridge problems?

No: Problem corrected. End of RAP.Yes: Go to step 4.4. Check the voltage at the Main PBA

connector J6-3 and GND. Result: Voltage is between +11 VDC and +12.5 VDC?

No: Go to RAP 2.1.Yes: Replace REP 4.5 Main PBA. If this

does not correct the problem, replace REP 4.4 Carriage Assembly.

or actuators, .

Panel Assembly.

tor J2 to the Scanner Motor.

J2.

connector J2-1, J2-2, J2-3, J2-4 and

ard +15 VDC during Scanner Motor RAP 5.1 Document Feed

See Parts List 1.1, 2.1 & 3.1.This RAP will help isolate document feed problems in the ADF and Scanner.1. Document tries to feed.No: Go to Step 5.Yes: Inspect the documents being used

to see if they meet document specifications.

Check the White Roller, Scan Drive Roller and ADF Roller assemblies for wear, damage, contamination or hardness.

Check the ADF Rubber Pad for excess wear or contamination.

Clean the rollers and pad with a

4. Try to make a copy.Result: Document now feeds?

No: Continue with Step 5Yes: Problem corrected.5. Open the Control Panel and check that the two sens

located on the back of the Control Panel, move freelyResult: Switches operate freely?

No: Correct the condition, or replace REP 1.4 ControlYes: Continue with Step 6.6. Check the wiring harness from the Main PBA connec

Result: Wiring harness is securely connected?No: Connect the wiring harness securely to connectorYes: Continue with Step 7.7. Power on the unit. Check the voltage from Main PBA

GND.Result: Voltage is +27 VDC in standby and goes towdrive.WorkCentre 480cx

lint free towel moistened with No: Perform RAP 2.2: Power Supply DC Voltage Check.his does not

an open motor winding.

tween pins on the scanner motor wiring

anner motor winding. If the resistance is inding.RAP 5.1 Document Feed4/99

2 - 10

water or alcohol.2. Try to make a copy.

Result: Document now feeds?No: Check the ADF and scanner paper

path for burrs and abrasions.Correct problems found.Continue with Step 3.

Yes: Problem corrected.3. Try to make a copy.

Result: Document now feeds?No: Replace REP 2.1 ADF Rubber Pad. If

problems still occur, replace REP 3.1 Rollers (ADF and Drive Rollers, and Document Exit Shaft Assemblies) and REP 1.1 White Roller Assembly. Continue with step 4.

Yes: Problem corrected.

Yes: Replace REP 3.3 Scan Motor/Gear Assembly. If tsolve the problem, replace REP 4.5 Main PBA.

NOTE: You may choose to check the Scanner Motor for

Disconnect J2. Table 2-3. gives the resistance values beharness.

If the resistance is too low, then there is a short in the scinfinite, or too high, then there is an open in the motor w

Table 2-3. Scanner Motor Winding Resistance


1 2 5 - 7 ohms

3 4 5 - 7 ohms

ne.

s not solve RAP 6.1 Communications

See Parts List 3.1.1. Check the wire harnesses and

connections from the Main PBA connector J7 to the LIU PBA, LIU connector P3 to telephone line connector, and the telephone connection.Result: Connections secure?

No: Reconnect wire harnesses as required.

Yes: Continue with Step 2.2. Is Speaker volume turned on?No: Turn on speaker.Yes: Continue with step 3.3. Enter Service Mode by pressing ,

#, 1, 9, 3, 4.

5. In Service Mode, run the DTMF test by pressing , 04, . Press all keypad digitsand check display for correct response.Result: Test passed?

No: Replace REP 4.5 Main PBA.Yes: Continue with Step 7.6. Connect the machine to a known, good telephone li

Send and/or receive a fax.Result: Machine transmits and/or receives the fax?

No: Replace REP 3.5 LIU PBA and retest. If this doethe problem, replace REP 4.5 Main PBA.

Yes: End of RAP.RAP 6.1 Communications

4. Press , 04, , , V, , V, , VWorkCentre 480cx4/99

2 - 11

, V, , V, , V, , V, , V, , V, , V, , V, , , .Run the modem test. Listen for tones and signals to vary as you cycle through the test.Result: Test passed?

No: Disconnect J5 to Speaker. The resistance of the Speaker coilfrom J5-1 to J5-2 is 8 ohms. If incorrect, replace REP 1.3 Top Cover Assembly.

Yes: Continue with Step 5.

RAP 6.2 PC Connectivity

This RAP tests the communication between the WorkCentres parallel port (Centronics) and the PC.1. Check the cables from Main PBA

connector CN1 to the Parallel Cable Interface PBA CN1. From Parallel Cable Interface CN2 to the customers PC. The cable must be an IEEE 1284

compliant cable no longer than 25 feet.

The cable must be securely connected to the WorkCentre Centronics port and the customers PC parallel port.

The connection must be a direct WorkCentre 480cx

connection, i.e., not routed RAP 6.2 PC Connectivity4/99

2 - 12

through a switch box or other device.

2. Power on the WorkCentre.3. At the PC, exit Windows to DOS.4. At the customers DOS system prompt,

type the following:copy con lpt1: Testing 1234 Result: Text Testing 1234 prints on the WorkCentre?

No: Recheck the parallel cable and cable connections. Replace the cable with a known good cable. If this does not correct the problem, replace REP 4.5 Main PBA, then REP 3.6 Parallel Cable Interface PBA.

Yes: End of RAP. Exit DOS and return to Windows.

RAP 7.1 Control Panel

See Parts List 4.1.This RAP will isolate a Control Panel problem to the failed component.1. Power on the unit.Check the voltage between J1-2 and J1-1 on the Main PBA.

Result: Voltage is between +4.35 VDC and +4.65 VDC?

No: Perform RAP 2.2: Power Supply DC Voltage Check.

Yes: Replace REP 1.4 Control Panel Assembly. If this does not correct the problem, replace REP 4.5 Main PBA.RAP 7.1 Control PanelWorkCentre 480cx4/99

2 - 13

RAP 8.1 Cartridge Cover Interlock

See Parts List 1.1.1. Check for a loose or damaged cable

from J10 on the Main PBA.Result: Harness and connections appear good?

No: Reconnect the harness, or replace REP 1.3 Top Cover Assembly.

Yes: Continue with Step 2.2. Disconnect J10 from the Main PBA.

Check for continuity between J10-1 and J10-2 with the ADF Door closed and infinity with the ADF Door opened.

No: Replace REP 1.3 Top Cover Assembly.WorkCentre 480cx

Yes: Replace REP 4.5 Main PBA.RAP 8.1 Cartridge Cover Interlock4/99

2 - 14

RAP 9.1 ROM Test

This RAP tests the WorkCentres ROM.The WorkCentre is tested during system startup. However, you can run a ROM test from the service menu.1. Power on the machine.2. In the Service Mode, perform the ROM

test by pressing , 01, V, V, V, V, V, V, V, .Result:Test passed?

No: Replace REP 4.5 Main PBA.Yes: End of RAP.RAP 9.1 ROM TestWorkCentre 480cx4/99

2 - 15

THIS PAGE INTENTIONALLY LEFT BLANKWorkCentre 480cxRAP 9.1 ROM Test4/99

2 - 16

Introduction

3. Image Quality Repair Analysis Procedures

d to identify image quality Wo

Se

IntIQIQIQ4/993 - 1rkCentre 480cx

ction Contents

roduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1RAP 1 Image Defect Table - - - - - - - - - - - - - - - 3-2RAP 2 Print Quality - - - - - - - - - - - - - - - - - - - - 3-4RAP 3 Scan Quality - - - - - - - - - - - - - - - - - - - - 3-5

Introduction

The Image Quality section is useproblems.

Solution

Remove and check for tape covering the Cartridge print head nozzles. Reinstall the Cartridge.Press , 13, V, V, and to clean and restore the Cartridge.If the problem still exists, replace the Cartridge.Go to IQRAP 2.

Press , 13, V, V, to clean and restore the Cartridge.If the problem still exists, replace the Cartridge.Go to IQRAP 2.

Replace the paper.Press , 13, V, V, and to clean the Cartridge.Print a new SELF-TEST.If the print is still faint, perform the cleaning IQRAP 1 Image Defect TablePrint SELF TEST:1. Load paper into the APF.2. Press , 13, .3. Examine the SELF TEST for quality

defects listed in Defect column of the following table.

Generally quality problems are caused by: non-approved paper or other media out-of-alignment Cartridge a defective or dirty Cartridge paper feed problems defective Encoder CIS aging

Defect Cause

Blank print Print head

White horizontal lines and streaks

The Cartridge nozzles may be blocked.

Print is faint or missing.

A non-recommended paper is being used or the paper is damp.Defective Cartridge.The ink supply may be WorkCentre 480cx

dirty roller nearly empty. procedure 2 more times.If the problem still exists, replace the Cartridge.Go to IQRAP 2.

Align the Cartridge , 13, V, and perform adjustment.If the problem still exists, replace the Cartridge.Use the opposite side of the paper.Go to IQRAP 2.

Make sure the printer driver setup has the correct selection for media size and type.

Adjust the margins in the application as necessary.

Clean both the CIS assembly glass and White Roller.Examine the CIS assembly and White Rollerfor scratches, cuts and wear.Align the Cartridge , 13, V, and perform adjustment.Go to IQRAP 2 for print problems.Go to IQRAP 3 for scan problems.IQRAP 1 Image Defect Table4/993 - 2

dirty platenUse your best judgement to determine the cause of a quality problem.

Make a COPY:1. Load 82P151 into the ADF.2. Press , .3. Examine the copy for quality defects

listed in column 1 of the following table.

The Cartridge nozzles may be blocked.

Blurry or jagged vertical lines

Cartridge is out of alignment.Paper

Print image is clipped or off the edge of the media

Print off the edge of the media

Document margins may exceed printer margins

Vertical white lines on print after copy or scan

Foreign matter on CIS glass or plastic platen

Vertical offset overtype (a line of type prints over part of the preceding line)

A damaged or stripped gear or roller is preventing the media from advancing properly.

Replace the gear or roller. If that does not solve the problem go to RAP 3.1.

Vertical black lines during copy or scanning.

Damaged, contaminated or defective CIS.

Clean the CIS.Go to IQRAP 3.

Black Copy CIS defective Go to IQRAP 3.

Smudged or dark characters

Paper incorrect type.Paper not feeding straight.Cartridge may need cleaning.

Replace the paper.Press , 13, V, V, and to clean the Cartridge.Print a new SELF TEST.If the print is still faint, perform the cleaning procedure 2 more times.If the problem still exists, replace the Cartridge.

Defect Cause SolutionIQRAP 1 Image Defect TableWorkCentre 480cx4/993 - 3

IQRAP 2 Print QualitySee Parts List 4.11. Remove the Cartridges.2. Clean the head of the cartridge with a lint

free cloth moistened with warm water.3. Install the Cartridges.4. Clean the Cartridges using the CLEAN

HEAD procedure. , 13, V, V, . Do this 2 times.

5. Make a test print.Result: Test print is blank?

No: Go to step 11.Yes: Continue with Step 6.6. Replace the defective Cartridge.7. Make a test print.WorkCentre 480cxIQRAP 2 Print Quality4/993 - 4

Result: Test print is still blank?No: End of RAP.Yes: Continue with Step 8.8. Check the Carriage ribbon cables JP1,

JP2 and JP3 from the Main PBA for damage. Reconnect or replace Carriage Assembly as required 17Carriage Assembly.

9. Make a test print.Result: Test print is still blank?

No: End of RAP.Yes: Continue with Step 10.10. Replace Carriage Assembly REP 4.4

Carriage Assembly. If problem has not been corrected replace Main PBA. REP 4.5 Main PBA.

11. Perform the Cartridge ARRANGE ALIGNMENT procedure. , 13, V, .

IQRAP 3 Scan QualitySee Parts List 3.1, 4.1.

An entirely black print of a scanned document or black streaks where white should have been is indicative of a CIS, scanner problem.1. Power on the unit.2. Check the voltage between J3-3 and

GND on the Main PBA.Result:Voltage is between +4.35 VDC to +4.65 VDC.

No: Perform RAP 2.2: Power Supply DC Voltage Check on page 2-12.

Yes: Continue with Step 3.3. Check the voltage between J3-12 and

GND on the Main PBA.IQRAP 3 Scan Quality

Result: Voltage is between +11.1 WorkCentre 480cx4/993 - 5

VDC and +12.3 VDC?No: Perform RAP 2.2: Power Supply DC

Voltage Check on page 2-12.Yes: Check CIS harness and replace if

damaged. Otherwise, replace CIS Assembly REP 3.2 CIS (Contact Image Sensor). If this does not correct the problem, replace Main PBA REP 4.5 Main PBA.

THIS PAGE INTENTIONALLY LEFT BLANKWorkCentre 480cxIQRAP 3 Scan Quality4/993 - 6

Introductiono

e

t of the Service Manual provides ervice Representative to restore the after fault isolation.quence, all the items of the section, try in the section contents appears nual.

s instructions for removal and and/or replacement task is included ponents are removed and replaced, ch as an adjustment) must be met

res for a specific component or

re used to assist you with the o the specific parts list illustration r locating most components within a

4. Repair/AdjustmentW

S

InInRERERERERERE

REREREREREREREREREREREREREREADAD4/994 - 1rkCentre 480cx

ction Contents

troductionroduction...............................................................4-1P 1.1 White Roller Assembly ..........................4-2P 1.2 Rear Cover Assembly ...........................4-3P 1.3 Top Cover Assembly .............................4-4P 1.4 Control Panel Assembly........................4-5P 2.1 ADF Rubber Pad...................................4-6P 3.1 Rollers (ADF and Drive Rollers,

and Document Exit Shaft Assemblies)..4-7P 3.2 CIS (Contact Image Sensor) .................4-8P 3.3 Scan Motor/Gear Assembly ..................4-9P 3.4 Power Supply ......................................4-10P 3.5 LIU PBA ..............................................4-11P 3.6 Parallel Cable Interface PBA...............4-12P 4.1 Printer Assembly .................................4-14P 4.2 APF Tray Assembly.............................4-15P 4.3 Maintenance Station ...........................4-16P 4.4 Carriage Assembly..............................4-17P 4.5 Main PBA ............................................4-18P 4.6 Paper Guide Assembly .......................4-19P 4.7 Roller Holder Assembly.......................4-20P 4.8 Feed Roller..........................................4-21P 4.9 Paper Feed Motor Assembly...............4-22J 3.1 Adjust CIS Shading .............................4.23J 4.1 Adjust Cartridge Alignment .................4-24

Introduction

OverviewThe Repair/Adjustment sectioninformation that enables the Sproduct to within specificationsThe section contents lists, in sewith page references. Each enexactly as it appears in the ma

Repair ProceduresThis repair subsection containreplacement tasks. A removal when it is not obvious how comor when special conditions (suduring these tasks.Step-by-step removal proceduassembly are provided.Illustrations and photographs aprocedures. You should refer t(listed under the repair title) foprocedure.

WorkCentre 480cx

REP 1.1 White Roller Assembly

If dirty, wipe it off with soft clothe roller is heavily worn, replace it

everse order.REP 1.1 White Roller Assembly4/994 - 2

Parts List: 1.1Disconnect the power cord.

Removal1. Open the control panel.2. Push the bushing on both ends of the roller slightly inward, then

rotate it until it reaches the slot as shown below. Then lift the roller out.

Note: Check the roller for any dirt. dampened with water or alcohol. If thwith a new one.

Replacement1. Reinstall the components in the r

BushingControl Panel

White Roller

1.2 Rear Cover Assembly

REP 1.2 Rear Cover Assembly 3. Remove the screw and the storage unit. Remove the five screws

remove it by rotating it up to be

everse order.

er AssemblyREP4/994 - 3WorkCentre 480cx


Removal1. Disconnect the parallel cable and telephone lines.2. Holding the paper guide, move it in the direction of arrow.

shown below.

4. Holding the rear cover assembly,released properly.


PaperGuide

Rear Cov

WorkCentre 480cx

REP 1.3 Top Cover Assembly

and gently lay the cover on the

nd ADF Door Interlock Cable

everse order.

Top CoverAssemblyREP 1.3 Top Cover Assembly4/994 - 4


Removal1. Open the control panel and open the ADF Door. 2. Remove the White Roller Assembly (REP 1.1 White Roller

Assembly)3. Remove the Rear Cover Assembly (REP 1.2 Rear Cover

Assembly).4. Remove the eight screws shown below.

5. Take off the Top Cover Assemblyleft side.

6. Disconnect Speaker Cable (P5) a(P10) from the Main PBA.


ADF Door

Control Panel

4 Control Panel Assembly

REP 1.4 Control Panel Assembly

the Control Panel Assembly to

ly under the three tabs at front of s.

everse order.

ADF Restraint

Control Panel REP 1.4/994 - 5WorkCentre 480cx


Removal1. Remove the Top Cover Assembly (REP 1.3 Top Cover Assembly).2. Disconnect the control panel connector from the Main PBA.3. Turn the ADF restraint 90 degrees as shown below and take off the

Control Panel Assembly.

4. Remove the four screws securingthe Upper Scanner Assembly.

Replacement1. Install the Control Panel Assemb

control panel. Reinstall four screw2. Reinstall the components in the r

WorkCentre 480cx

REP 2.1 ADF Rubber Pad

everse order, observing the

ubber Pad, be sure that the d Rubber Holder fit into the r Holder latches fit into the firmly until both latches click.bber Pad with alcohol. ear. If the wear reaches 1/2 ce it with a new one.REP 2.1 ADF Rubber Pad4/994 - 6


Removal1. Open the Control Panel Assembly.2. Insert a flat blade screw driver into the slot as shown below, and

release the latches. Take out the Rubber Holder, ADF Sheet, and the Rubber Pad.


following:

When you reassemble the RRubber Pad, ADF Sheet anGuide Boss and the Rubbecorresponding holes. Push

Clean the surface of the RuCheck the Rubber Pad for wthe original thickness, repla

Rubber Pad

Rubber Holder

Control Panel Assembly

Guide Boss

ment Exit Shaft Assembly

REP 3.1 Rollers (ADF and Drive) and Document

everse order.ts, clean the surface of the rollersust dry them completely.REP 3.1 Rollers/ Docu4/994 - 7WorkCentre 480cx

Exit Shaft Assemblies


Removal1. Remove the Top Cover Assembly (REP 1.3 Top Cover Assembly).2. Remove the rollers from the base assembly.


Note: Before replacing the componenwith alcohol. After wiping them, you m

DocumentExit Shaft

ADF Roller Assembly

Drive Roller Assembly

Assembly

WorkCentre 480cx

REP 3.2 CIS (Contact Image Sensor)gs. CIS for any stain or scratches. Ifis heavily stained or scratched,

mains around the locating postsn on CIS to make sure it is freeis difficult to install check the CIS

everse order.ing.

CIS

SpringREP 3.2 CIS (Contaact Image Sensor) 4/994 - 8


Removal1. Remove the Top Cover Assembly (REP 1.3 Top Cover Assembly).2. Remove the Drive Roller shown below.3. Remove the screw securing the CIS Assembly.4. Disconnect the CIS Harness. Remove the CIS Assembly.5. Remove the one screw from the bottom of the CIS Assembly to

release the CIS from the bracket.

Note: Be careful not to lose the sprinNote: Check the glass surface of thestained, wipe off with alcohol. If it replace it with a new one.

ReplacementNote: Insure that the CIS Bracket reduring insertion of screw. Push dowafter inserting screw. If White Roller for proper replacement.

1. Reinstall the components in the r2. Perform Adj 3.1 Adjust CIS Shad

CIS Assembly

CIS Harness Drive Roller

CIS Harness GND.

Bracket

can Motor/Gear Assembly

REP 3.3 Scan Motor/Gear Assembly

n below and take out the Scan

the right side of the Main Frame.

everse order.REP 3.3 S4/994 - 9WorkCentre 480cx


Removal1. Remove the Top Cover Assembly (REP 1.3 Top Cover Assembly).2. Disconnect motor connector P2 from the Main PBA. Make sure the

harness is released from the hooks securing the harness as shown below.

3. Remove the two screws as showMotor/Gear Assembly.

4. Disconnect the ground wire from


Main PBA

Motor Harness

Scan Motor/GearAssembly

WorkCentre 480cx

REP 3.4 Power Supplyround wires to the bracket as

round wire to the Main Frame as released from the hook.

Ground Wire 1

Power SupplyREP 3.4 Power Supply4/99

4 - 10


Removal1. Remove the Rear Cover Assembly (REP 1.2 Rear Cover

Assembly).2. Disconnect the Power Supply connector P6 from the Main PBA.

Make sure the harness is released from the hooks.

3. Remove the screw securing the gshown.

4. Remove the screw securing the gshown. Make sure the harness is

LF BracketConnector P6

Main Frame

Ground Wire 2

REP 3.5 LIU PBA

5. Pushing down the hooks on both ends, pull out the Power Supply. REP 3.5 LIU PBA

er cord.

ly (REP 1.2 Rear Cover

round wires to the left rear side of

or P7 from the Main PBA.

Connector P74/994 - 11WorkCentre 480cx

Replacement1. Reinstall the components in the reverse order.

Parts List: 3.1Disconnect the pow

Removal1. Remove the Rear Cover Assemb

Assembly).2. Remove the screw securing the g

the Main Frame.3. Disconnect the LIU PBA connectPower Supply

Hook

Ground Wires (2)

LF Bracket

WorkCentre 480cx

4. While pulling the latching snaps locking the PBA outward, push the REP 3.6 Parallel Cable Interface PBA

.

ly (REP 1.2 Rear Cover

nector CN1 from the Main PBA. nd wires to the end of the Main

arallel Cable Interface PBA.REP 3.6 Parallel Cable Interface PBA4/99

4 - 12

LIU PBA up to remove.

5. Disconnect the remaining connectors from the LIU PBA.


Parts List: 3.1Disconnect the power cord

Removal1. Remove the Rear Cover Assemb

Assembly).2. Disconnect Parallel Interface con3. Remove screw securing the grou

Frame.4. Remove screw and remove the P

LIU PBA

arallel Cable Interface PBAREP 3.6 P4/99

4 - 13WorkCentre 480cx


Connector CN1

Ground Wires (2)

WorkCentre 480cx

REP 4.1 Printer Assembly

Parallel Interface PBA

LIU PBA

Speaker

ControlPanel

ADF Door

APFMotorInterlock REP 4.1 Printer Assembly4/99

4 - 14


Removal1. Remove the Top Cover Assembly (REP 1.3 Top Cover Assembly).2. Remove the three screws securing the printer Assembly.3. Disconnect the Control Panel, LIU, CIS, Power Supply, Scan Motor

and Parallel Interface PBA connectors from the Main PBA. 4. Disconnect the ground wire at the right end of the Printer Assembly

next to the Carriage Motor. 5. Disconnect the ground wire at the left end of the Printer Assembly

next to the Paper Feed motor.6. Remove the Printer Assembly.

Replacement1. Reinstall the components in the reverse order. Be sure to install the

Main Frame under the two tabs on the Base Assembly.Note: When you reassemble the unit, do not pinch or short the wireharnesses.

Main PBA

Print Heads (3)

Power Supply

Carriage Motor

APF PaperEmptySensor

ScanMotor CIS

EP 4.2 ADF Tray Assembly

REP 4.2 APF Tray Assembly (REP 4.2) from the printer unit by slightly to the left until it can be

out in the direction of arrow.

everse order.R4/99



Removal1. Remove the Rear Cover Assembly (REP 1.2 Rear Cover

Assembly).2. Disconnect P8 and P4 connectors from the Main PBA. 3. Remove the three screws shown below.

4. Remove the APF Tray Assemblypushing the feeder in, down and removed.

5. Remove the APF Tray Assembly


APF Tray Assembly

WorkCentre 480cx

REP 4.3 Maintenance Station

emove the Maintenance Station. ht so they will not hit the Paper

tation into position, be careful that holes.everse order.REP 4.3 Maintenance Station4/99

4 - 16


Removal1. Remove the Printer Assembly (REP 4.1 Printer Assembly).2. Center the Carriage Assembly to the left off of the Home Assembly.3. Release the locking tabs at both ends of the Maintenance Station

on the Main PBA side of the Main Frame. Remove the Maintenance Station in the direction of the arrow.

4. Gently push the locating pins to rHold the seals and tabs to the rigGuide during removal.

ReplacementNote: When inserting Maintenance Sthe pins are pushed into the locating

1. Reinstall the components in the r

Locking Tab

Locking Tab

Locating Pins

Maintenance Station

Paper Guide

EP 4.4 Carriage Assembly

REP 4.4 Carriage Assembly

everse order.w holding the Carriage Idler

to tighten the belt properly.

Spring

Spring

Tab

arrier Shaft

Carriage AssemblyR4/99



Removal1. Remove the Printer Assembly (REP 4.1 Printer Assembly).2. Center the Carriage Assembly. 3. Disconnect JP1, JP2, and JP3 from the Main PBA.4. Remove the Springs located at both ends of the Carriage Shaft.5. Remove the Carriage Shaft.6. Remove the screw on the left side of the Carriage Motor. Then

loosen the screw on the right side of the Carriage Motor so that the Carriage Drive Belt can be removed from the Carriage Motor and Pulley.

7. Gently lift up to release the tabs on top of the Carriage from the top of the Main Frame and the Encoder Sensor form the Encoder.

8. Remove the Carriage Assembly from the Main Frame.9. Make a note of how and where the Carriage Assembly is connected

to the Carriage Drive Belt for future reference when replacing the Carriage Assembly.

Replacement1. Reinstall the components in the r2. When completed, loosen the scre

Pulley Holder to allow the spring

Tab

Encoder

C

WorkCentre 480cx

REP 4.5 Main PBA

everse order.ing.

Main PBAREP 4.5 Main PBA4/99

4 - 18


Removal1. Remove the Top Cover Assembly (REP 1.3 Top Cover Assembly).2. Disconnect all connectors from the Main PBA.3. Remove one screw securing the Main PBA at the right edge of the

PBA (when viewed from the rear).4. Pull the sensor lever towards the rear, then remove the Main PBA

by lifting the top right corner

Replacement1. Reinstall the components in the r2. Perform Adj. 3.1 Adjust CIS Shad

Sensor Lever

.6 Paper Guide Assembly

REP 4.6 Paper Guide Assembly

e left end of the Exit Roller for d is inserted into the roller.everse order.

Paper GuideREP 44/99



Removal1. Remove the following:

a. Roller Holder Assembly (REP 4.7 Roller Holder Assembly).b. Carriage Assembly (REP 4.4 Carriage Assembly).c. Maintenance Station (REP 4.3 Maintenance Station)

2. Remove the two screws securing the Exit Roller Assembly to the Paper Guide.

3. Remove the Exit Roller by gently pulling on the right end to free the roller.

4. Remove the Exit Roller from the Drive Belt.5. Gently remove the right side of the Paper Guide from the Main

Frame while removing it from the Feed Roller.6. Remove the left side of the Paper Guide from the Main Frame while

removing it from the Feed Roller in the direction shown below.

Replacement1. Remove the Exit Roller Gear at th

easier replacement. The gear en2. Reinstall the components in the r

Exit Roller Assembly

WorkCentre 480cx

REP 4.7 Roller Holder Assembly

everse order.

Latching Tab. Press from front of Main Frame to

Friction Spring. Release at this

e

Paper Path

Latching REP 4.7 Roller Holder Assembly4/99

4 - 20


Removal1. Remove the following:

a. Top Cover Assembly (REP 1.3 Top Cover Assembly)b. Printer Assembly (REP 4.1 Printer Assembly).c. APF Tray Assembly (REP 4.2 APF Tray Assembly).d. Main PBA (REP 4.5 Main PBA).

2. Disconnect four Friction Springs from four Friction Holders to the Roller Holder.

3. Depress the two latching tabs on the Roller Holder on the front side of the Main Frame. Slide the Roller Holder down as shown to remove.


Centr

Latching Tab Slots. Press Tabs from front of Main Frame to

REP 4.8 Feed Roller

REP 4.8 Feed Roller

ection of the arrow and take it out.

he reverse order.4/994 - 21WorkCentre 480cx


Removal1. Remove the Paper Guide Assembly (REP 4.6 Paper Guide

Assembly).2. Remove the Right Feed Bearing as shown below.

3. Pull the Feed Roller in the dir

Replacement1. Reinstall the components in t

Feed Roller Right Feed Bearing

WorkCentre 480cx

REP 4.9 Paper Feed Motor Assembly

rse order.

Feed Motor AssemblyREP 4.9 Paper Feed Motor Assembly4/99

4 - 22


Removal1. Remove the Feed Roller (REP 4.8 Feed Roller).2. Remove the two screws and take out the Paper Feed Motor

Assembly.

Replacement1. Reinstall the components in reve

Paper

DJ 3.1 Adjust CIS Shading

ADJ 3.1 Adjust CIS ShadingA4/99


This procedure is used to adjust the amount of light for the CIS. WARNING

CIS Shading MUST be performed after downloading a new firmware version. If not, the system will not work properly.

ADJUST SEQUENCES

1. Load an all white document in scanner Unit.2. Press , #, 1, 9, 3, 4.3. Press , 04 (SYSTEM SETUP), , .4. LCD will display CIS SHADING?.5. Press then LCD will display SHADING....6. After scanning, a shading waveform will be printed out. 7. Press .8. Turn OFF system, then Turn IT ON to complete setting.

WorkCentre 480cx

ADJ 4.1 Adjust Cartridge AlignmentADJ 4.1 Adjust Cartridge Alignment 4/994 - 24

This procedure is used to arrange the alignment of the Black, Color and Photo Cartridge. When a color and a black cartridge is installed you get four settings, A, B, C, & D. When you have a color and a photo cartridge installed you get only adjustment A & B for the new cartridge.

ADJUST SEQUENCES

1. Press , 013 (Maintenance), .2. LCD will display ARRANGE ALIGNMENT ?.3. Press then LCD will display PRINTING....4. After printing the CARTRIDGE ALIGNMENT selection sheet,

select the number in each section that represents the proper alignment such as; for ALIGNMENT A number 5 is the best setting for the vertical line and ALIGNMENT B number 7 is the best setting for the horizontal line.

5. Enter the number of your selection when it is requested on the machine display, then press to go to the next selection.

6. When all selections have been made the machine returns to standby.

Introduction

5. Parts Lists

d View Illustrations

that is called out on an illustrationcorresponding listing within this

ents are given item numbers thatnd to the part number listings.

ber Index

ex lists all the spared parts in thein numerical order. Each number is by a reference to the parts list one part may be found.Wo

Se

TiIntPLPLPLPLParkCentre 480cx4/995 - 1

ction Contents

tle Pageroduction - - - - - - - - - - - - - - - - - - - - - 5-1 1.1 Main Assembly - - - - - - - - - - - - - 5-2 2.1 Control Panel Assembly - - - - - - - 5-5 3.1 Base Assembly - - - - - - - - - - - - - 5-6 4.1 Engine & APF Assembly - - - - - - - 5-8rt NO. Index - - - - - - - - - - - - - - - - - - 5-10

Introduction

OverviewThe Parts Lists section provides explodedview illustrations of all spared subsystemcomponents and a listing of thecorresponding part numbers. Theillustrations show the relationships betweenparts.Organization of this SectionThe following elements make up the PartsList section:

Parts Lists (PL)Each item number in the part numbers listingcorresponds to an item number in theillustration. All the parts in a given subsystemof the machine will be located in the sameillustration or in a series of associatedillustrations. The parts which are not sparedare indicated by - - in the Part column.

Explode

An item has a section.Componcorrespo

Part Num

This indsystem followedwhich th

WorkCentre 480cx

PL 1.1 Main Assembly PL 1.1 Main Assembly4/995 - 2

1

102

4

6

5

9

78

19{A&D

AD

D

D

D

D

PL 1.1 Main Assembly

PL 1.1 Main AssemblyWo

Ite

1.2.

3.4.5.6.7.8.9.101112131415161718194/995 - 3rkCentre 480cx

m Part Description

- - Control Panel Assembly (See PL1.2)(REF only)002N01623 Top Cover Assembly (US/XE)002N01627 Top Cover Assembly (ACO)050N00281 Document Input Tray Assembly050N00282 Document Input Tray Extension060K01530 Cartridge Storage Assembly002N01622 Rear Cover- - Base Assembly (See PL 1.3) (REF only)050N00280 Document Exit Tray Assembly- - Engine Assembly (See PL 1.4) (REF only)

. 022K64470 White Roller Assembly. 110K10140 Handset (ACO only) (Not shown). 117K32600 Handset Cord (ACO only) (Not shown). 117K13660 Power Cord (Not shown). 152N01672 LIU Harness (ACO only) (Not shown). 140N05292 Hook PBA (ACO) (Not shown). 152N01682 Hook, Harness (ACO) (Not shown). 162K06530 RTI Cable (Not shown). 162K39580 Printer Cable (Not shown). 600N01590 Hardware Kit

WorkCentre 480cx

PL 2.1 Control Panel Assembly PL 2.1 Control Panel Assembly4/995 - 4

1

8

7

6

2

5

3{1,2,6,A&D4{5,6,7,D9{A&D

D

A

DD

D

2.1 Control Panel Assembly

PL 2.1 Control Panel AssemblyWo

Ite

1.2.

3.4.5.6.7.8.

9.PL4/995 - 5rkCentre 480cx

m Part Description

802E17830 One-Touch Cover891E Control Panel Overlay, (French)891E Control Panel Overlay, (Portuguese)891E Control Panel Overlay, (Spanish)891E Control Panel Overlay, (German)891E Control Panel Overlay, (Dutch)891E Control Panel Overlay, (Italian)101N01177 Control Panel Assembly101N01178 Upper Scanner Assembly- - ADF Sheet (REF only)019E43540 ADF Rubber Holder019E43530 ADF Rubber891E One-Touch Label, (German)891E One-Touch Label, (Dutch)891E One-Touch Label, (Italian)891E88990 One-Touch Label, (English)891E99060 One-Touch Label, (French)891E99080 One-Touch Label, (Portuguese)891E99070 One-Touch Label, (Spanish)600N01590 Hardware Kit

WorkCentre 480cx

PL 3.1 Base AssemblyPL 3.1 Base Assembly4/995 - 6

1

22

2

2019

4

5

6

15

14

9

13

11

12

8

3

16

17

18

21

237{3,8,11,12,1310{11,1224{B&D

D

D

A

B

D

D

D

13

PL 3.1 Base Assembly

PL 3.1 Base AssemblyWo

Ite

1.2.3.4.5.6.7.8.9.1011121314151617181920212223

244/995 - 7rkCentre 480cx

m Part Description

105N01268 Power Supply Assembly (110V - 220V)022K64490 ADF Roller Assembly013N00392 Bushing152N01672 LIU Harness140N05254 Parallel Interface PBA030N00434 ADF Spring Clips002N01624 Base Cover Assembly019N00435 Felt Pad127K30440 Scan Motor/Gear Assembly

. 050N00279 Printer Exit Tray Assembly. - - Printer Exit Tray REF only). - - Printer Exit Tray Extension (REF only). 017N00167 Rubber Foot. 830E28530 ADF Restraint. 006E67100 Document Exit Shaft Assembly. 009N01069 Ground Spring Plate. 809E23890 CIS Spring. 830E40000 CIS Bracket. 109K01250 CIS. 152N01670 CIS Harness. 162K51140 CIS Harness GND. 022K64480 Scan Drive Roller Assembly. 160K64040 LIU PBA (USO/XCL)

160K64860 LIU PBA (ACO)160K65280 LIU PBA (XL)160K64850 LIU PBA (XE)

. 600N01590 Hardware Kit

WorkCentre 480cx

PL 4.1 Engine & APF Assembly

D

APL 4.1 Engine & APF Assembly4/995 - 8

113

12

9

8 7

65

3

2

11

10

4

14 15B

D

A

C

C

D

C

D

D

16{A,B,C&D

4.1 Engine & APF Assembly

PL 4.1 Engine & APF AssemblyWo

Ite

1.2.3.4.5.6.7.8.9.10111213141516PL 4/995 - 9rkCentre 480cx

m Part Description

022N01026 APF Tray Assembly127N01011 Carriage Motor Assembly001N00298 Main Frame Assembly013E14870 Right Feed Bearing094N00210 Maintenance Station022N01027 Feed Roller001N00297 Paper Guide041N00198 Carriage Assembly006E67110 Carriage Shaft

. 009N01070 Carriage Shaft Spring. 146N00095 Encoder. 020N00476 Idler Pulley. 030N00438 Paper Feed Motor Assembly. 140N05255 Main PBA. 022N01028 Holder Roller Assembly. 600N01590 Hardware Kit

Part NO. Index4/99

5 - 10rkCentre 480cx

Part NO. Index

N01027 4.1 N01028 4.1 N00434 3.1 N00438 4.1 N00198 4.1 N00279 3.1 N00280 1.1 N00281 1.1 N00282 1.1

802E17830 2.1 809E23890 3.1 830E28530 3.1 830E40000 3.1 891E 2.1 891E88990 2.1 891E99060 2.1 891E99070 2.1 891E99080 2.1

Qty.

10101010Wo

PaPar

- -

- -

- -

001001002002002002006006009009013013017019019019020022022022022022022030030041050050050050rt NO. Indext Number PL

1.1 2.1 3.1

N00297 4.1 N00298 4.1 N01622 1.1N01623 1.1N01624 3.1N01627 1.1E67100 3.1 E67110 4.1 N01069 3.1 N01070 4.1 E14870 4.1 N00392 3.1 N00167 3.1 E43530 2.1 E43540 2.1 N00435 3.1 N00476 4.1K64470 1.1 K64480 3.1 K64490 3.1 N01026 4.1

Part Number PL

060K01530 1.1 094N00210 4.1 101N01177 2.1 101N01178 2.1 105N01268 3.1 109K01250 3.1117E13660 1.1117E32600 1.1 127K30440 3.1 127N01011 4.1 140N05254 3.1 140N05255 4.1 146N00095 4.1 152N01670 3.1 152N01672 3.1 152N01682 1.1160K64040 3.1 160K64850 3.1160K64860 3.1 160K65280 3.1 162K51140 3.1 600N01590 2.1 600N01590 3.1 600N01590 4.1

Common Hardware KitDescription

A. Tapping Screw 2.5 x 6B. Tapping Screw 3 x 5C. Tapping Screw 3 x 6D. Tapping Screw 3 x 8

Introductiono

6. General Procedures

e

eo

uction

ion includes the precautions and specifications. Also included is a list of ions used throughout the manual. W

S

Ti

IntPrPrUsAcSp

XLLisSeMaSeSyFirMoInsrkCentre 480cx4/996 - 1

ction Contents

tle Pageroduction - - - - - - - - - - - - - - - - - - - - - - - - 6-1cautions - - - - - - - - - - - - - - - - - - - - - - - - 6-2duct Codes- - - - - - - - - - - - - - - - - - - - - - 6-2

ing the Control Panel - - - - - - - - - - - - - - - 6-3cessories/Supplies/Consumables - - - - - - 6-4ecifications - - - - - - - - - - - - - - - - - - - - - - 6-5

Printer Engine - - - - - - - - - - - - - - - - - - - 6-5Head - - - - - - - - - - - - - - - - - - - - - - - - - 6-5Power & Size - - - - - - - - - - - - - - - - - - - 6-5Scanner - - - - - - - - - - - - - - - - - - - - - - - 6-5Facsimile - - - - - - - - - - - - - - - - - - - - - - 6-5

LIU PBA Country Configurations - - - - - - 6-8t Abbreviations - - - - - - - - - - - - - - - - - - - 6-9rvice Mode - - - - - - - - - - - - - - - - - - - - - 6-10intenance - - - - - - - - - - - - - - - - - - - - - - 6-10tting Up the System - - - - - - - - - - - - - - - - 6-11stem Data - - - - - - - - - - - - - - - - - - - - - - 6-13mware Matrix - - - - - - - - - - - - - - - - - - - - 6-14difications - - - - - - - - - - - - - - - - - - - - - - 6-14tallation- - - - - - - - - - - - - - - - - - - - - - - - 6-15

Introd

This sectmachine abbreviat

WorkCentre 480cx

Precautions component differs from the original. This holds true, even though the replacement may

copper foil, or conductive foam, to prevent electrostatic charge buildup in the vicinity of

mbly. se Freon-propelled chemicals. When , these can generate electrical sufficient to damage ESDs. emove a replacement ESD from its ve packaging until immediately before g it. Most replacement ESDs are d with all leads shorted together by ive foam, aluminum foil, or a able conductive material. ately before removing the protective material from the leads of a ment ESD, touch the protective l to the chassis or circuit assembly into e device will be installed. continuous electrical contact the ESD and the assembly into

will be installed, until completely or soldered into the circuit. e bodily motions when handling ged replacement ESDs. Normal , such as the brushing together of fabric and lifting ones foot from a d floor, can generate static electricity t to damage an ESD.

Codes

Code

KU3KU4KU5Precautions4/996 - 2

Follow these safety, ESD, and servicing precautions to prevent personal injury and equipment damage.

1. Be sure that all built-in protective devices are in place. Restore any missing protective shields.

2. Make sure there are no cabinet openings through which people- particularly children- might insert fingers or objects and contact dangerous voltages.

3. When re-installing chassis and assemblies, be sure to restore all protective devices, including control knobs and compartment covers.

4. Design Alteration Warning: Never alter or add to the mechanical or electrical design of this equipment, such as auxiliary connectors, etc. Such alterations and modifications will void the manufacturers warranty.

5. Components, parts, and wiring that appear to have overheated or are otherwise damaged should be replaced with parts which meet the original specifications. Always determine the cause of damage or overheating, and correct any potential hazards.

6. Observe the original lead dress, especially near sharp edges, AC, and high voltage power supplies. Always inspect for pinched, out-of-place, or frayed wiring. Do not change the spacing between components and the printed circuit board.

7. Product Safety Notice: Some electrical and mechanical parts have special safety-related characteristics which might not be obvious from visual inspection. These safety features and the protection they provide could be lost if a replacement

be rated for higher voltage, wattage, etc.

Components critical for safety are indicated in the parts list. Use only replacement components that have the same ratings, especially for flame resistance and dielectric specifications. A replacement part that does not have the same safety characteristics as the original may create shock, fire, or other safety hazards.

ESD Pre

wc480 service manual

Documents

xerox service documentation

xerox products

xerox premises forposal

andhold xerox harmless

product trained service

tosuch customer

customer ofequipment

section contents