Basic Operation; Functions - Canon LBP-1120 Service Manual

Laser beam printer
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I. BASIC OPERATION
A. Functions
Printer functions can be divided into five groups: video control system, engine control system, image formation system,
laser/scanner system, and paper pickup/feed system.
To external device (host computer,etc.)
LASER/SCANNER SYSTEM
Laser
diode
Fixing
PICK-UP/FEEDSYSTEM
Scanning mirror
BD
circuit
Scanner
motor
IMAGE FORMATION
SYSTEM
Primary
charging
Photo-
roller
sensitive
Cleaner
drum
unit
Transfer
charging
roller
Figure 2-1-1
VIDEO CONTROL SYSTEM
Interface controller
PCB
ENGINE CONTROL
SYSTEM
Engine controller PCB
Developing
unit
Pick-up
control
CHAPTER 2
Display
PCB
2 - 1

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