Brother 1270N - Manual (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