Canon IR C6800 Series Service-Handbuch

Jan 20 2005

General Timing Chart / General

Circuit Diagram

iR C6800 Series

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 the 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.

　Reproduction without permission not allowed.

Use of this manual should be strictly supervised to avoid disclosure of confidential information.

Printed in Japan

Caution

Use of this manual should be strictly supervised to avoid disclosure of confidential information.

Contents

1 General Timing Chart............................................................................................................................................... 1

Full color ................................................................................................................................................................. 1

Mono color .............................................................................................................................................................. 3

2 General Circuit Diagram .......................................................................................................................................... 5

Signal Names........................................................................................................................................................... 5

General Circuit Diagram ....................................................................................................................................... 16

1 General Timing Chart

Full color

iR C6800C / iR C6800CN / iR 5800C / iR 5800CN

F-1-1

PRINT LSTR PSTBYPSTBY PINTR

STBYSTBY SCFW SCRW

M1 M2 Y1 Y2 C1 C2 Bk1 Bk2

OHP sensor front/

rear (PS3/29)

Right deck pull-off

motor (M14)

Manual feed pre

-registration motor (M6)

reading: book, 1 A4 original

printing: A4, plain paper, single-sided, full color, 2 prints

Original exposure

Scanner motor

(M501)

Scanning lamp

Scanner HP sensor

(PS501)

Laser exposure system

Printer unit

Laser scanner

motor(M1)

ITB home

position signal

PVREQ signal

Drum/ITB motor

(M2)

Primary charging

bias

Grid bias

Laser

Pre-exposure

LED (LED1)

Black developing

bias (DC)

Black developing

bias (AC)

Black developing

clutch (CL3)

Developing

rotary motor (M5)

Stray toner

collection roller bias

Image formation system

Primary transfer bias

Color developing

bias (DC)

Color developing

clutch (CL1)

Pre-transfer charging

bias (AC)

Color developing

bias (AC)

Pre-transfer charging

bias (DC)

ITB cleaner shift

motor (M21)

Secondary transfer

outside roller shift

motor (M20)

Secondary transfer

bias

Secondary transfer

cleaning bias

Right deck pickup

motor (M17)

Deck (right) pickup

solenoid (SL6)

Right deck pickup

sensor (PS33)

Pickup/feeding system

Registration motor

(M8)

Fixing system

Fixing main heater

(H1)

Fixing sub heater

(H2)

Shift heater

(H3)

Outside heating

roller heater (H4)

Outside heating roller

shift motor (M22)

Fixing motor (M4)

Fixing inlet sensor

(PS11)

Outside delivery

sensor (PS13)

*1: interval used to stabilize the rotation.

*2: interval during which the main heater and the sub heater are tuned on alternately.

Start key ON

Image formation

ready timing

:forward :reverse

Mono color

iR C6800C / iR C6800CN / iR 5800C / iR 5800CN

F-1-2

PRINT LSTR PSTBYPSTBY PINTR

STBYSTBY SCFW SCRW

Bk1

Bk2

reading: book mode, 1 A4 original

printing: A4, plain paper, single-sided, mono color, 2 prints

Original exposure

Scanner motor

(M501)

Scanning lamp

Scanner HP sensor

(PS501)

Start key ON

Laser exposure system

Printer unit

Laser scanner

motor(M1)

ITB home

position signal

PVREQ signal

Laser

Drum/ITB motor

(M2)

Primary charging

bias

Grid bias

Pre-exposure

LED (LED1)

Black developing

bias (DC)

Black developing

bias (AC)

Black developing

clutch (CL3)

Developing

rotary motor (M5)

Stray toner

collection roller bias

Primary transfer bias

Color developing

bias (DC)

Color developing

clutch (CL1)

Pre-transfer charging

bias (AC)

Color developing

bias (AC)

Pre-transfer charging

bias (DC)

ITB cleaner shift

motor (M21)

Secondary transfer

outside roller shift

motor (M20)

Secondary transfer

bias

Secondary transfer

cleaning bias

Image formation system

Pickup/feeding system

OHP sensor front/

rear (PS3/29)

Right deck pull-off

motor (M14)

Manual feed pre

-registration motor (M6)

Right deck pickup

motor (M17)

Deck (right) pickup

solenoid (SL6)

Right deck pickup

sensor (PS33)

Registration motor

(M8)

Fixing system

Fixing main heater

(H1)

Fixing sub heater

(H2)

Shift heater

(H3)

Outside heating

roller heater (H4)

Outside heating roller

shift motor (M22)

Fixing motor (M4)

Fixing inlet sensor

(PS11)

Outside delivery

sensor (PS13)

*1: interval used to stabilize the rotation.

*2: interval during which the main heater and the sub heater are tuned on alternately.

Image formation

ready timing

:forward :reverse

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