CHAPTER 3 THEORY OF OPERATION
3-1
CHAPTER 3 THEORY OF OPERATION1. 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 blockHigh-voltage power supply blockLaser unit Drive block
(DC motor)
Drum unit
Transfer block
Drum
Charging
block
External devicePaper 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