Confidential

3-1

3.1 OVERVIEW

Control Section

Centronics
parallel interface USB interface
Host Computer
Control
panel LAN
interface
Printer
data
Fax data
Low- and
high-voltage
power
supplies
AC
LAN (MFC7820N only)
Paper
feeding
mechanism
Laser printing unit
*Provided on models supporting facsimile function.
Charging, exposing,
developing,
transferring, and
heat-fixing processes
- Electrical charger
- Laser unit
(including the polygon
motor)
- Laser-sensitive drum
- Developer roller
- Transf er roller
- Heater roller
- Main motor
Scanner unitADF unitNCU*Line Speaker
- CIS unit
- CIS motor
- ADF
motor