CANON NP6218 - Service Manual Immediate Download

SERVICE

MANUAL

REVISION 0

FY8-13EX-000

MAY 1997

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

IMPORTANT

THIS DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN, TO SERVE AS A SOURCE OF

REFERENCE FOR WORK IN THE FIELD.

SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY FROM

ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER.

ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO

THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.

THIS DOCUMENTATION IS INTENDED FOR ALL SALES AREAS, AND MAY CONTAIN

INFORMATION NOT APPLICABLE TO CERTAIN AREAS.

Printed in Japan

Imprimé au Japon

Use of this manual should be strictly

supervised

avoid

disclosure

confidential information.

Prepared by

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPT. 1

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV.

CANON INC.

5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302 Japan

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

This Service Manual contains the bsic facts and figures about the plain paper copier

NP6218, and is compiled to serve as a handy reference for servicing the machine in the

field.

The NP6218 is designed to enable fully automated copying work and may be

configured with the following accessories:

1. Cassette Feeding Module-B2*

2. Cassette Feeding Module-A2*

3. Control Card IV N

4. ADF-E1

5. Staple Sorter B2/D1

6. MS-B1

7. Remote Diagnostic Device II

This manual is limited to the descriptions of the NP6218, Cassette Feeding Module-

B2/Cassette Feeding Module-A2.

* May not be available in some areas but discussed in this manual.

This Service Manual covers the copier only, and consists of the following chapters:

Chapter 1

General Description introduces the copier's features and specifications,

shows how to operate the copier, and explains how copies are made.

Chapter 2

Basic Operation provides outlines of the copier's various mechanical

workings.

Chapter 3

Exposure System discusses the principles of operation used for the

copier's lens drive unit and scanner drive unit. It also explains the timing

at which these drive units are operated, and shows how they may be

disassembled/assembled and adjusted.

Chapter 4

Image Formation System discusses the principles of how images are

formed. It also explains the timing at which the various units involved in

image formation are operated, and shows how they may be

disassembled/assembled and adjusted.

Chapter 5

Pick-Up/Feeding System explains the principles used from when copy

paper is picked up to when a copy is delivered in view of the functions of

electrical and mechanical units and in relation to their timing of operation.

It also shows how these units may be disassembled/assembled and

adjusted.

Chapter 6

Fixing System explains the principles used to fuse toner images to

transfer media in view of the functions of electrical and mechanical units

and in relation to their timing of operation. It also shows how these units

may be disassembled/assembled and adjusted.

Chapter 7

Externals/Auxiliary Mechanisms shows the copier's external parts, and

explains the principles used for the copier's various control mechanisms

in view of the functions of electrical and mechanical units and in relation

to their timing of operation. It also shows how these units may be

disassembled/assembled and adjusted.

Chapter 8

Installation introduces requirements for the site of installation, and shows

how the copier may be installed using step-by-step instructions.

INTRODUCTION

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

Chapter 9

Maintenance and Servicing provides tables of periodically replaced parts

and consumables/durables and scheduled servicing charts.

Chapter 10

Troubleshooting provides tables of maintenance/inspection,

standards/adjustments, and problem identification (image

fault/malfunction).

Appendix contains a general timing chart and general circuit diagrams.

In addition to the above chapters, this SERVICE MANUAL contains a set of

appendixes consisting of a general timing chart and general circuit diagrams.

A separate document entitled SERVICE HANDBOOK is also available for

troubleshooting problems in the copier.

The following rules apply throughout this volume:

1. Each chapter contains sections explaining the purpose of specific functions and the

relationship between electrical and mechanical systems with reference to the

timing of operation.

In the diagrams,

represents the path of mechanical drive--where a

signal name accompanies the symbol

, the arrow indicates the direction

of the electric signal.

The expression "turn on the power" means flipping on the power switch, closing the

front door, and closing the delivery unit door, which will result in supplying the

machine with power.

2. In the digital circuits, `1' is used to indicate that the voltage level of a given signal is

"High," while `0' is used to indicate "Low." (The voltage value, however, differs from

circuit to circuit.)

In practically all cases, the internal mechanisms of a microprocessor cannot be

checked in the field. Therefore, the operations of the microprocessors used in the

machines are not discussed: they are explained in terms of from sensors to the

input of the DC controller PCB and from the output of the DC controller PCB to the

loads.

The contents of this manual may be updated from time to time to reflect improvements

rendered to the copier; a Service Information bulletin will be issued as necessary to

cover major changes.

All service persons are expected to be thoroughly familiar with the information

contained in this manual, SERVICE HANDBOOK, and Service Information bulletins, for

quick response to the user's needs.

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

System Configuration

The NP6218 may be configured with the following systems options:

CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

iii

ADF-E1

Sends originals one by one from

a stack set on its tray

Stapler Sorter B2/D1, MS-B1

Automatically sorts or (page collation)

or groups up to 10 sets of copies;

with the sorting function,

the sorted copies may

automatically be stapled.

(Not applicable to MS-B1.)

Control Card IV N

Allows the user to control

copy volume.

Cassette Feeding Module-A2

Adds additional two cassettes.

Cassette Feeding Module-B2

Adds an additional cassette.