Service manual

I. BASIC OPERATION
A. Functions
Printer functions can be divided into five groups: the video control system, the engine control
system, the image formation system, the laser/scanner system, and the paper pick-up/feed sys-
tem.
Figure 2-1-1
CHAPTER 2
2 - 1
To external device (host computer, etc.)
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
VIDEO CONTROL
SYSTEM
Interface controller PCB