CHAPTER III ELECTRICAL SYSTEM

 

1.

MAIN PCB

III-1

 

1.1

Outline

III-1

 

1.2

Video Controller Circuit

III-2

 

1.3

Engine Controller Circuit

III-7

2.

PAPER FEED DRIVE CIRCUIT

III-9

3.

DISPLAY CIRCUIT

III-11

 

3.1

Outline

III-11

 

3.2

Operation

III-11

4.

LOW-VOLTAGE POWER SUPPLY ASSY

III-12

 

4.1

Outline

III-12

 

4.2

Protection Functions

III-12

5.

HIGH-VOLTAGE POWER SUPPLY ASSY

III-14

 

5.1

Outline

III-14

 

5.2

Operation of the Components of the High-Voltage Power Supply Assy

III-14

CHAPTER IV

MECHANICAL SYSTEM

 

PRINTER DISASSEMBLING PROCEDURE

 

PRINTER BODY

 

1.1

 

Configuration

IV-3

1.2

 

Toner Cartridge Lid

IV-3

1.3

 

Side Cover L

IV-3

1.4

 

Font Cover Assy

IV-4

1.5

Upper Cover Assy, Rear Cover Assy

IV-4

 

 

1.5.1 Upper cover assy, rear cover assy

IV-4

 

 

1.5.2 Changeover guide, jam remove cover

IV-5

1.6

 

Side Cover R

IV-5

1.7

 

DC Fan Motor

IV-6

1.8

 

Main PCB

IV-6

1.9

 

Control Panel Unit

IV-8

1.10

Scanner Unit

IV-9

1.11

Cartridge Stopper Assy

IV-9

1.12

Paper Feed Chassis Unit

IV-10

1.13

Separation Pad Assy

IV-11

1.14

MP PE Sub Actuator

IV-12

1.15

P Feed /Size-SW PCB Assy

IV-12

1.16

Side-Switch Spring

IV-12

1.17

Regist Sensor Actuator

IV-13

1.18

MP Paper Detection Actuator

IV-13

1.19

PE Sensor Actuator MP

IV-13

1.20

Tray Sensor Holder

IV-14

1.21

Roller Holder

IV-14

1.22

Paper Pick-up Roller Assy, Bearing

IV-15

1.23

Paper Pick-up Solenoid

IV-16

1.24

Paper Feed Motor Assy

IV-16

1.25

MP Tray Cover

IV-17

1.26

MP Tray Assy

IV-17

1.27

Paper Path Separation Plate, Paper Path Separation Film

IV-18

1.28

Latch

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

IV-19

1.29

Fixing Unit (for both 120V and 230V, the only difference is the halogen heater) . IV-19

1.30

Transfer Unit

IV-22

ii

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Brother HL-1260 service manual Chapter III Electrical System