CHAPTER 3 THEORY OF OPERATION; 1. ELECTRONICS; General Block Diagram- Page 43

CHAPTER 3  THEORY OF OPERATION

3-1

CHAPTER  3     THEORY 

OF 

OPERATION

1. ELECTRONICS

1.1

General Block Diagram

Fig. 3-1 shows a general block diagram of the HL-1030/1240 printer.

Video control block

Interface block

(HL-1030: Parallel)

(HL1240: Parallel/USB)

Engine control block

Operation block

 (Control  panel)  

 Control system

Low-voltage power

  supply block

High-voltage power

 supply block

Laser unit

Drive block
(DC motor)

Drum unit

Transfer block

Drum

Charging

 block

External device

Paper tray unit

Paper cassette

Manual feed

Fixing unit

Paper eject block

Paper feed system

Image generation system

RAM 2MB

Paper dust

cleaner block

Developing

 block

Toner cartridge

Fig. 3-1

HL-1030/1240