Brother HL-730Plus Service Manual page 19

<HL-730/730Plus>
Fig. 2.2 shows a general block diagram of this printer.
Optional RAM board Optional I/F board
(1.0, 1.5 Mbytes) (Mac. RS-232C)
Control system
Expansion memory I/O Expansion I/O
Interface block
Video control block
Engine control block
Operation block
(Operation panel)
Erase lamp
Paper tray unit
Drive block
Laser scanner unit
(Stepping motor)
Paper tray
Manual feed
Drum unit
Transfer block
Fixing unit
Cleaner
Developing
Drum
block
block
Charging
Paper eject block
block
Paper feed system
Toner cartridge
Image generation system
Fig. 2.2
II-2