Chapter 3 Theory Of Operation; Electronics; General Block Diagram - Brother HL 5030 - B/W Laser Printer Service Manual

CHAPTER 3
1.

ELECTRONICS

1.1

General Block Diagram

Fig. 3-1 shows a general block diagram. (HL-5030/5040/5050/5070N)
RAM (DIMM)(max. 128MB)
(Option for HL-5040/5050/5070N)
THEORY OF OPERATION
Control system
RAM Expansion
HL-5030:4MB
memory I/O
HL-5040:8MB
HL-5050:16MB
HL-5070N:16MB
Video control block
Engine control block
Laser unit
Drum unit
Transfer block
Charging
Drum
block
Developing
block
Toner cartridge
Image generation system
HL-5030/5040/5050/5070N SERVICE MANUAL
Ethernet
10/100 Base TX
(HL-5070N only)
PCI bus
Interface block
(Parallel / USB)
HL-5030:USB only
Operation block
(Control panel)
Drive block
(DC motor)
Paper dust
cleaner block
Fig. 3-1
3-1
Paper tray unit
Paper cassette
MP tray
(HL-5050/5070N only)
Front cover ASSY
(HL-5030/5040 only)
Fixing unit
Paper eject block
Paper feed system