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II-3
Fig. 2-3 shows a general block diagram of the HL-1050 printer.
Optional RAM (SIMM)
(max. 32Mbytes)
Optional I/F board
(Mac. RS-232C)
Expansion memory I/O Expansion I/O
Video control block
Interface block
Engine control block
Operation block
(Operation panel)
Control system
Low-voltage power
supply block
High-voltage power
supply block
Laser scanner unit
Drive block
(Stepping motor)
Drum unit
Transfer block
Developing
block
Drum
Charging
block
Cleaner
block
External deviceExternal device
Paper tray unit
Paper tray
Manual feed
Fixing unit
Paper eject block
Paper feed system
Image generation system
Toner cartridge
Erase lamp
Fig. 2-3
HL-1050