Xerox 3050 User manual

XEROX
Xerox 3050 (50160 Hz) Copier
Service Manual
Revisions 700P86582,700P86583,700P86584,700P86585,700P86586, and 700P86587 have
been merged intothis document. Changes bring this document to the
12/97 level.
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700P86580
December 1997
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NOTICE
While every care has been taken in the
preparation of this mantlal, no liability will be
accepted by Xerox Engineering Systems
arising out of any inaccuraciesor omissions.
Prepared by:
MultinationalCustomerand Service Education
Developmentand Manufacturing
Xerox Corporation, Rochester, NewYork
14644
"1992, 1993,
1 994, 1996, and 1997 by Xerox Corporation.
All rights resewed.
XEROX" and allXerox productnames mentionedinthis
publicationare trademarksof the XEROX CORPORATION.
XEROX, and
3050 are trademarksused by Xerox Canada
Ltd. as
a registereduser.
Printedin
USA
MOLEX" isa registeredtrademarkof the Molex
Corporation.

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Table of Contents
Title Page
Introduction ........................ vii
AboutThis Manual .................. vii
Organization ....................... vii
HowtoUse This Manual ............ viii
.... RepairAnalysis Procedures(RAPS) viii
Repair1AdjustmentProcedures
...... viii
ReferenceSymbology
............... ix
DC VoltageSpecifications ............. x
1. ServiceCallProcedures .......... 1 - 1
SectionContents ............... 1 - 1
Thissectioncontainsthefollowing
information:
a Call Flow Diagram
0 InitialAction
StatusCode EntryChart
a MaintenanceActivitiesChecklist
2. StatusIndicatorRAPS ........... 2-1
SectionContents ............... 2- 1
This section contains a listing of
the status codes and the Repair
Analysis Procedures, (RAPS).
.............
3. ImageQuality RAPS 3-1
...............
SectionContents 3-1
This sectioncontainsimagequality
defectsamplesandthe RepairAnalysis
Procedurefor correctingtheproblem.
Title
Page
4. RepairlAdjustmentProcedures . . 4-1
................
SectionContents 4-1
This sectioncontainsallRepairl
RemovalandAdjustment
procedures, ElectrostaticSeries.
.......................
5. .PartsLlst 5-1
...............
SectionContents 5-1
This sectioncontainsthepartnumbers
forallreplaceablecomponents.
6. GeneralProceduresllnformatlon . 6-1
............... SectionContents 6-1
This sectioncontains information
aboutdiagnosticprocedures,
DrumMaintenanceprocedures,
toolsandsupplies, installation
procedures,copier specifications,
andtheChangeTag1
MOD Index.
.................... 7. Wiring Data 7-1
............... SectionContents 7- 1
This sectioncontainsthelistof
connectorsandtheconnector
locationdrawingsand
informationaboutsome
componentwiring.
8. AccessorieslOpt~ons ............ 8- 1
This sectionnotused atthistime.
10192
3050
v Table of Contents

Introduction
About This Manual
This manual is part of a documentation
systemthatincludesproducttraining.
This manual contains Service Call
Procedures, Diagnostic Procedures, Status
lndicator Repair Analysis Procedures, Repair
and Adjustment Procedures, Parts Lists and
GeneralProceduresor Information.
This information will help
a Service
Representative repair and maintain this
copier.
Organization
Thismanual is dlvidedintoeightsections:
Section 1. ServiceCall Procedures
This section contains the following
information:
0 Call FlowDiagram
The Call Flow Diagram
is a map of the
procedurestofollow oneachservice call.
InitialAction
The Initial Actions identify how to collect
the information necessary and how to
verify, classify and proceed with the
servicecall.
0 MaintenanceActivities
The MaintenanceActivities
lists the items
thathavetobe serviced based onthetype
ofcalltobe performed, either NormalCall
or CallBack.
Section 2. Status lndicator Repair
Analysis Procedures
This section contains the Repair Analysis
Procedures (RAPS) that are necessary to
repair the faults other than image quality
defects. When usinga RAP, stop the repairs
when the fault
is fixed. Do notperformthe
remainingsteps.
Section 3. Ima e Quality Repair
Analysis Proce
3 ures
This section contains a listing of image
quality defects and samples to assist in
classifyingthe defects. When the defect has
been classified, a checklist
is then used to
repairthe cause of the defect. The checklists
are arranged in the sequence of most
probable to least probable cause with the
corresponding corrective action for each
cause.
Section 4. Repair/Adjustment
Procedures
This section contains the repairs and
adjustmentsforthecopier.
Section 5. PartsList
This section contains the detailed Parts Lists
forthecopier.
Section 6. GeneralProcedures1
Information
This sectioncontainsthe Diagnostic
Procedures, ProductSpecifications,
SupplementalToolsandSupplies, Generic
RAPS,Installationand Removal procedures,
andother information..
Section 7. Wiring Data
This section contains thePlugNack Locational
Drawings, Electrical Component Wiring
Connections Drawings, and a set of
ComponentDrawings.
Section 8. AccessorieslOptions
Thissection is notused atthistime.
10192
3050 ~ii Introduction

HowToUseThis Manual
Always beginwiththe Service Call Procedures,
Section
1. Perform Initial Actions to identify
andclassifytheproblem.
Then proceed to one of the following sections
ofthemanualtocorrecttheproblem.
Section
2 contains the Status Indicator RAPS.
Use these RAPs ifthecopier
is notoperational,
such as when a Status Code
is displayed or
there
is an improper Indication, or "blank"
display,
etc.
Section 3 is used to troubleshoot Image
Quality problems.
If you are not sure of the
type of imagequality defectthat
is occurring,
use the contents page InSection
3 to find a
defect that best represents the type of defect
that
is onthecopy.
When usingSection
2 or Section 3, you may be
directed to Section
4 to perform repair or
adjustment procedures, or to Section
5, Parts
list.
Next, performtheNormalCallprocedures.
After performing Normal Call or Call Back,
performFinalActionstoensure thatthecopier
meetsthecopyspecifications.
MultinationalConfiguration
Differences
This manual contains informationthat applies
to
US0 (USA), RX (Rank Xerox and Xerox
Engineering Systems Europe),
XCL (Canada),
and
XlA (Latin America). US0 references
usually apply to
XCL and XLA. If a USO, RX,
XCL or XLA copier configuration is different,
the specific USO,
XCL, RX or XLA information
will beshownbyitself.
"Dry Ink" means the same as "Toner" and
"Tag" meansthesame as "Mod".
RepairAnalysisProcedures(RAPs)
A RAP Is a series of steps designed tolead you
to the cause of a problem. Ineach step, you
will perform an action or observe an
occurrence. At each step,
a statement is made
thathasaYes
(Y) or No (N) answer.
If the answer
is NO, perform the action
following the NO. If the answer
is YES,
proceedtothe nextstep.
Whenseveral itemsare listed, performthem in
theorderlisted.
Proceed through the steps only until the
problem
is solved. There is no need to
continue with the
RAP after the problem is
corrected.
Repair / Adjustment Procedures
The repair procedures provide detailed steps
on how to remove and replace components.
The adjustment procedures provide detailed
steps on howtocheck and adjust components.
Some copiers have -beenmodified by various
design changes. Each change or modification
is labeled with a TaglMOD (modification)
number. The TaglMOD numbersare identified
in the Change TagIMOD Index inSection
6 of
thisServiceManual.
When a modificationaffects how
a particular
procedure
is performed, the procedure or
steps are identifiedwith either a
W1 TaglMOD
or a WIO TaglMOD statement. Each
procedure or step that
is affected by a
modification
is identifiedwith the statement,
Wl TaglMOD followed by the modification
number. The WI in the statement indicates
that this step must
be performed on copiers
that are assembled
y& that specific
modification.
When the procedureor steps are not affected
by a particular modification, they are
identifiedwith the statement,
WIO TaglMOD
followed by the modification number. The
WIO inthe statement indicates that this step
must be performed on copiers that are
assembledwithoutthatspecific modification.
(continued)
lo/%?
Introduction viii 3050