Chapter 3 Theory Of Operation; Electronics; General Block Diagram - Brother HL-2030 Service Manual

CHAPTER 3
1.

ELECTRONICS

1.1

General Block Diagram

Fig. 3-1 shows a general block diagram. (HL-2030/2040/2070N)
THEORY OF OPERATION
Control system
RAM
HL-2030: 8MB
HL-2040: 8MB
HL-2070N: 16MB
Video control block
Engine control block
Laser unit
Drum unit
Transfer block
Charging
Exposure
drum
block
Developing
block
Toner cartridge
Image generation system
Ethernet
10/100 Base TX
(HL-2070N only)
Interface block
USB
Parallel
(HL-2040/2070N)
Operation block
(Control panel)
Drive block
(DC motor)
Paper dust
cleaner block
Fig. 3-1
3-1
HL-2030/2040/2070N SERVICE MANUAL
Paper tray
Fixing unit
Paper eject block
Paper feed system
Confidential