Brother HL-5130 - Chapter 3 Theory of Operation; Electronics; General Block Diagram

HL-5130/5140/5150D/5170DN SERVICE MANUAL
3-1
CHAPTER 3 THEORY OF OPERATION
1. ELECTRONICS
1.1 General Block Diagram
Fig. 3-1 shows a general block diagram. (HL-5130/5140/5150D/5170DN)
RAM (DIMM)(max. 160MB)
(Option for HL-5140/5150D/5170DN)
Ethernet
10/100 Base TX
(HL-5170DN only)
Expansion
memory I/O
PCI bus
Video control block
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
External device
Paper tray unit
Paper tray
MP tray
(HL-5150D/5170DN only)
Front cover ASSY
(HL-5130/5140 only)
Fixing unit
Paper eject block
Paper feed system
Image generation system
Interface block
(Parallel / USB)
RAM
HL-5130:8MB
HL-5140:16MB
HL-5150D:16MB
HL-5170DN:32MB
Paper dust
cleaner block
Developing
block
Toner cartridge
Fig. 3-1