HP 1100AHP - Manual (Page 45)

C4224-90962 Printer functions 43
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