Brother International HL 5030 Service Manual - Page 69
THEORY OF OPERATION, 1. ELECTRONICS, 1.1 General Block Diagram
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HL-5030/5040/5050/5070N SERVICE MANUAL External device CHAPTER 3 THEORY OF OPERATION 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) Control system RAM HL-5030:4MB HL-5040:8MB HL-5050:16MB HL-5070N:16MB Expansion memory I/O Video control block Ethernet 10/100 Base TX (HL-5070N only) PCI bus Interface block (Parallel / USB) HL-5030:USB only External device Low-voltage power supply block High-voltage power supply block Engine control block Operation block (Control panel) Laser unit Drive block (DC motor) Drum unit Charging block Transfer block Drum Paper dust cleaner block Developing block Toner cartridge Image generation system Fig. 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 3-1