Overview - Brother IntelliFax-3550 Service Manual

1. OVERVIEW

Control
panel
NCU
Line
Handset
RS-232C
(Modular connector)
[FAX3550/3650/
8000P/8200P]
Fax Control Section
Speaker
Scanner unit
- LED array
- CCD unit
- Scanner motor
PC/AT
Centronics
parallel interface
[MFC4450/
4550/4550plus/
6550MC/7550MC/7650MC/
9000/9500]
Laser Printing Control Section
Printer
data
Fax data
Laser printing unit
Charging, exposing,
developing,
transferring, erasing,
and heat-fixing
processes
- Electrical charger
- Laser unit
(including the polygon
motor)
- Laser-sensitive drum
- Developer roller
- Transfer roller
- Eraser lamp
- Heater roller
- Main motor
III – 1
MAC
RS-232C RS-422
Optional serial interface
(Extended I/O connector)
[MFC6550MC/7550MC/
7650MC/9000/9500]
Paper
Low- and
feeding
high-voltage
mechanism
power
supplies
AC