Xerox DocuPrint C55 Bedienungsanleitung

Color Laser Printer

(50/60 Hz)

Service Manual

701P14760

February, 1999

CAUTION

Certain components in the DocuPrint C55/C55mp/

[NC60] Color Laser Printers are susceptible to

damage from electrostatic discharge. Observe all

ESD procedures to avoid component damage.

DocuPrint C55/C55mp/[NC60]

NOTICE

“All Service documentation is supplied to Xerox

external customers for informational purposes

only. Xerox Service Documentation is intended

for use by certified, product trained personnel

only. Xerox does not warrant or represent that

such documentation is complete, nor does Xerox

represent or warrant that it will notify or provide

to such customer any future changes to this

documentation. Customer performed service of

equipment, or modules, may affect the warranty

offered by Xerox with respect to such equipment.

You should consult the applicable warranty for its

terms regarding customer or third party provided

service. If the customer services such

equipment, modules, components or parts

thereof, the customer releases Xerox from any

and all liability for the customer actions, and the

customer agrees to indemnify, defend and hold

Xerox harmless from any third party claims

which arise directly or indirectly from such

service.”

Prepared by:

Xerox Corporation

Multinational Customer and Service Education

780 Salt Road

Webster, New York 14580

Xerox and all Xerox products mentioned in this publication

are registered trademarks of the Xerox Corporation

CLASS 1 LASER PRODUCTS

This product is certified as a Class 1 Laser

product and complies with DHHS Laser-

Radiation Standards, 21 CFR Chapter 1 Sub-

chapter J. WARNING

Use of controls, adjustments, or perform-

ances of procedures other than those

specified in this manual may result in

hazardous radiation exposures.

The C55/C55mp/[NC60] each contain an

invisible laser. There is no visual indication that

the laser beam is present. During servicing, the

C55/C55mp/[NC60] remain a Class 1 product

because of the interlock system. Do not attempt

to cheat the interlock switches on this printer.

Product

DocuPrint C55/C55mp/[NC60] Title

Service Manual Part Number

701P14760 Date

February 1999

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TABLE OF CONTENTS

2/99

DocuPrint C55/C55mp/[NC60] i

TABLE OF CONTENTS

TITLE PAGE

INTRODUCTION

About This Manual --------------------------------- ii

Organization ----------------------------------------- ii

How to use This Manual--------------------------iii

Reference Symbology-----------------------------iii

SERVICE CALL PROCEDURES

Contents------------------------------------------- 1-1

STATUS INDICATOR RAPS

Contents------------------------------------------- 2-1

IMAGE QUALITY RAPS

Contents------------------------------------------- 3-1

REPAIR/ADJUSTMENT PROCEDURES

Contents------------------------------------------- 4-1

PARTS LIST SECTION

Contents------------------------------------------- 5-1

GENERAL PROCEDURES/INFORMATION

Contents------------------------------------------- 6-1

WIRING DATA

Contents------------------------------------------- 7-1

INTRODUCTION

2/99

INTRODUCTION

ii DocuPrint C55/C55mp/[NC60]

ABOUT THIS MANUAL

This manual is part of a multinational

documentation system which includes

Training.

This manual contains information that applies

to:

•USCO

•XE

•XCL

•ACO

This service manual covers both the C55 and

NC60 product families.

Unique NC60 directions will be given in [ ]s.

For example:

Press the On Line [0] key.

The On Line key is unique to the C55 family

and the [0] key is unique to the NC60.

If the entire procedure is unique to a product

family, it will be noted at the top of the page

and in the footer at the bottom of the page.

“USCO” references apply to 115 Volt printers.

“XE” references apply to 220/240 Volt printers.

“Dry Ink” means the same as “Toner” and

“Tag” means the same as “Mod”.

ORGANIZATION

This manual is divided into seven sections

organized as follows:

A Publications comment sheet is provided at

the end of this manual.

Section 1 - SERVICE CALL PROCEDURES

This section contains the following:

•Call Flow Instructions

•Initial Actions

•System Checks

•Every Call Activities

•Scheduled Maintenance

•Final Action

Call Flow

The call flow chart shows you how to conduct

the service call.

Initial Actions

The initial actions suggests how to collect data

necessary to proceed with the service call.

System Checks

The System Checks procedures details the

steps for effective repair and verification of

repair of problems found in Initial Action.

Every Call Activities

These are cleaning and maintenance activities

which are performed on every call.

Scheduled Maintenance

Scheduled Maintenance consists of checking

the life remaining on the CRUs.

Final Action

Final Action ensures that image quality is

acceptable, and that printer performance and

appearance is satisfactory. Details are

included for completing administrative tasks

and closing out the service call.

Section 2 - STATUS INDICATOR REPAIR

ANALYSIS PROCEDURES (RAPs)

This section contains the Repair Analysis

Procedures (RAPs) necessary to repair faults

other than image quality faults.

Section 3 - IMAGE QUALITY REPAIR

ANALYSIS PROCEDURES (RAPs)

This section contains the Repair Analysis

Procedures (RAPs) necessary to repair image

quality faults.

Section 4 - REPAIR/ADJUSTMENT

PROCEDURES

This section contains the Repair and

Adjustment procedures for the printer. All

unique procedures will be identified as follows:

•USCO

•XE

Section 5 - PARTS LIST

This section contains exploded view drawings

and referenced replaceable parts lists for the

Printer.

Section 6 - GENERAL PROCEDURES

This section contains Diagnostic procedures,

Menus, Product Specifications, ESS/IOT test

patterns, and other General Procedures.

Section 7 - WIRING DATA

This section contains Block Schematic

Diagrams (BSDs), Plug/Jack/PWB Location

Diagrams and wiring diagrams.

2/99

DocuPrint C55/C55mp/[NC60] iii

INTRODUCTION

HOW TO USE THIS MANUAL

Section 1, Service Call Procedures will direct

you to each section of the manual necessary

to perform a service call.

You will begin with Initial Actions which

suggest how to collect problem symptoms and

evidence to be used in the next section, the

System Checks Section.

Details in the System Checks are designed to

assist you in classifying, repairing and verifying

the repair of the problem. From here, you may

be directed to any of the other six sections of

the service manual depending on the

symptoms observed and the results of

suggested tests. After a repair has been

verified (or during a repair activity) instructions

are included to direct you into Every Call

Activities.

REFERENCE SYMBOLOGY

Reference Symbology provides supportive

data for Repairs, Adjustments, and the RAPs.

The symbols that refer to this supportive data

are shown in the paragraphs that follow.

Note: This symbol is used to refer to notes,

usually found on the same page.

Parts Lists

PL 2.4 (example)

In the example above, the parts list reference

and the exploded view drawing would be found

in Section 5 on sub-section 2.4.

Descriptions of commonly used graphic

symbols are included in order to aid

troubleshooting when using the circuit

diagrams.

Switches/Relays

Safety interlock switch, circuit open.

Safety interlock switch, circuit closed.

Switch/relay with momentary contacts

shown normally open.

Switch/relay with momentary contacts

shown normally closed.

Magnetically actuated Switch.

Miscellaneous Symbols

A flag that identifies a wire that has

been referred to in the text.

[ 8-2 ] Indicates a Diagnostic Code used to

check a particular component.

Identifies a test point, test hole or test

stake on a PWB.

Auditron/Key Counter connection.

This symbol, used with a number,

indicates that the actual number may

be equal to or very near the value of

the designated number.

Triac, used to switch AC power.

Light Emitting Diode (LED).

Led/Phototransistor Sensor.

Motor.

Thermistor Bead, used to sense

temperature.

A Driver which is used to switch on

DC Components.

Analog to Digital Converter.

Relay

Solenoid

MOT

GND

A/D

2/99

INTRODUCTION

iv DocuPrint C55/C55mp/[NC60]

Signal Continuation/Flow

Indicates the continuation of a signal

line interrupted in a horizontal

direction.

Represents the continuation of a

standby power line interrupted in the

vertical direction. In all cases, the

supply is from Standby Power

Indicates a feedback signal.

Indicates a common splice of wires.

Indicates a common splice of wires at

a pin.

Indicates the direction of signal flow.

Indicates that the wire continues to

the adjacent page.

Tag Identification

This WITH TAG Symbol is used to

identify the components or configura-

tion that are part of a printer change

covered by the Tag number.

This WITHOUT TAG Symbol is used

to identify the components or

configuration that are not part of a

printer change covered by the Tag

number

P/J57

1. SERVICE CALL PROCEDURES

2/99 SERVICE CALL PROCEDURES

DocuPrint C55/C55mp/[NC60] 1-1SECTION CONTENTS

TITLE PAGE

CALL FLOW---------------------------------------1-2

INITIAL ACTION ---------------------------------1-3

SYSTEM CHECKS ------------------------------1-3

EVERY CALL ACTIVITIES --------------------1-4

SCHEDULED MAINTENANCE---------------1-4

FINAL ACTION-----------------------------------1-5

SERVICE CALL PROCEDURES 2/99

CALL FLOW 1-2DocuPrint C55/C55mp/[NC60]

CALL FLOW

SYSTEM CHECKS

This step is used to suggest a direction for using the

information, obtained during Initial Action. You can

then repair and verify the repair of the problem. This

step may also provide information to assist in the

identification of new problems and suggest actions to

take to repair/resolve them.

FINAL ACTIONS

This step is used to ensure that the print quality, the

printer performance, and the printer appearance is

satisfactory. It will also provide direction to help

complete administrative tasks.

INITIAL ACTION

This step is used to gather information about the

reason for the call, to determine the machine

condition, and to run print samples.

EVERY CALL ACTIVITIES

This step consists of every call cleaning and

maintenance activities.

SCHEDULED MAINTENANCE

This step is used to check the life remaining on the

CRU’s.

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