CANON NP6320 - Service Manual Immediate Download

CANON NP6320 REV.0 DEC. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

REVISION 0

FY8-13GF-000

DEC. 1999

CANON NP6320 REV.0 DEC. 1999 PRINTED IN JAPAN (IMPRIME 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 INFOR-

MATION NOT APPLICABLE TO CERTAIN AREAS.

Printed in Japan

Imprimé au Japon

Use of this manual should be strictly su-

pervised to avoid disclosure of confidential

information.

Prepared by

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION

OFFICE IMAGING PRODUCTS QUALITY ASSURANCE CENTER

CANON INC.

5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302-8501 Japan

CANON NP6320 REV.0 DEC. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

This Service Manual contains basic data and figures for the NP6320 needed to

service the machine in the field.

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 operational

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 ahd 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 tranfer

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.

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 problems identification (image fault/malfunction).

Appendix contains diagrams showing electrical parts arrangement, tables of

signals, tables of special tools, tables of solvents/oils, and a general timing

chart.

The descriptions in this Service Manual are subject to change without notice for

product improvement or other purposes, and major changes will be communicated in the

from of Service Information bulletins.

All service persons are expected to have a good understanding of the contents of this

Service Manual and all relevant Service Information bulletins and be able to identify and

isolate faults in the machine.

INTRODUCTION

CANON NP6320 REV.0 DEC. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

System Configuration

The NP6320 is designed to accommodate the following for fully automated copy work:

ADF-A1

A stack of documents may be placed for

automatic pick-up and feed.

Sorter-A1

Up to 20 copies may be automatically sorted or

grouped by page.

MS-A1

Up to 10 sets of copies may be automatically sorted

or grouped by page.

Stapler Sorter-D3

Up to 10 sets of copies

may be automatically

sorted. Further, copies

may be automatically

sorted and then stapled in

sequence.

Paper Deck Pedestal-J1

Accommodates

as many as 1000

sheets of copy paper.

Control Card V

With the card, the volume of copy work

may be put under control.

ADF-D1

The fastest and easiest way to copy.

Place originals in this feeder and they

are automatically fed to the platen

glass.

CANON NP6320 REV.0 DEC. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

iii

CONTENTS

CHAPTER 1 GENERAL DESCRIPTION

FEATURES .................................. 1-1

II.

SPECIFICATIONS ....................... 1-2

Type ....................................... 1-2

Construction .......................... 1-2

Performance .......................... 1-3

Others .................................... 1-3

III. NAMES OF PARTS ...................... 1-5

External View ........................ 1-5

Cross Section ........................ 1-6

IV. OPERATION ................................1-7

Control Panel .........................1-7

Setting the Auto Shut-Off

Time ...................................... 1-9

Daily Inspection to Be

Performed by the User .......... 1-9

IMAGE FORMATION

PROCESS ................................. 1-11

Outline ................................ 1-11

CHAPTER 2 BASIC OPERATION

CHAPTER 3 EXPOSURE SYSTEM

BASIC OPERATION .................... 2-1

Functions ............................... 2-1

Outline of Electric Circuitry ... 2-2

Inputs to the DC Controller ... 2-4

DC Controller Outputs ........... 2-7

Basic Sequence of Operations

(Direct, continuous copying, 2

sheets)................................ 2-10

BASIC OPERATION .................... 3-1

Changing the Reproduction

Ratio ...................................... 3-1

II.

LENS DRIVE SYSTEM ................ 3-2

Outline ................................... 3-2

Basic Lens Drive System

Operation (change of

reproduction ratio) ................. 3-4

III. SCANNER DRIVE SYSTEM ....... 3-5

Outline ................................... 3-5

Relation Between Scanner

Sensor and Signals ............... 3-6

C. Basic Scanner Operation ...... 3-7

Scanner Motor Drive System

Operation .............................. 3-8

Scanner Movement for Two-

Page Separation Mode

(copy count 2) .................... 3-10

Document Size

Identification ....................... 3-11

IV. DISASSEMBLY AND

ASSEMBLY ............................... 3-14

Lens Drive Assembly ......... 3-14

Scanner Drive Assembly .... 3-16