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C4224-90962
Printer functions
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Printer functions
Printer functions are divided into six groups:
1
ECU/power system
2
formatter system
3
image formation system
4
printer paper feed system
5
document scanner system
6
basic sequence of operation (formatter to printer)
The following figure is a block diagram of the printer unit:
Figure 3-2 Printer unit functional block diagram
To external device (host computer, etc.)
via video controller
PICK-UP/FEED SYSTEM
IMAGE FORMATION
SYSTEM
LASER/SCANNER SYSTEM
ENGINE CONTROL
SYSTEM
Scanning mirror
Laser
diode
Scanner
motor
BD
circuit
Engine controller PCB
Face-up delivery slot
Fixing
Pick-up
control
Developing
unit
Photo-
sensitive
drum
Primary
charging
roller
Cleaner
unit
Transfer
charging
roller
Manual feed slot
Multi-purpose tray
Face-down delivery tray