CONTENTS

1.

OVERVIEW

III-1

2.

MECHANISMS

III-2

 

2.1

Scanner Mechanism

III-3

 

2.1.1 Document feeding and ejecting mechanism

III-3

 

2.1.2

Scanner

III-3

 

2.2

Laser Printing Mechanism

III-4

 

2.2.1 Paper pulling-in, registration, feeding, and ejecting mechanism

III-4

 

2.2.2

Print process mechanism

III-6

 

 

 

(1)

Charging process

III-7

 

 

 

(2)

Exposing process

III-7

 

 

 

(3)

Developing process

III-8

 

 

 

(4)

Transferring process

III-8

 

 

 

(5)

Erasing process

III-8

 

2.2.3

Heat-fixing mechanism

III-9

 

2.3

Sensors and Actuators

III-10

3.

CONTROL ELECTRONICS

III-12

 

3.1

Configuration

III-12

 

3.2

Main PCB

.....................................................................................................

III-13

 

3.3

NCU PCB

.....................................................................................................

III-15

 

3.4

Control Panel PCB

III-16

 

3.5

Power Supply PCB

III-17

 

 

 

[ 1 ]

Low-voltage power supply PCB

III-17

 

 

 

[ 2 ]

High-voltage power supply PCB

III-18

Page 17
Image 17
Brother FAX-8650P service manual Overview