Canon ImageFormula DR-9080C, Service Manual

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2 - 4
COPYRIGHT © 2003 CANON ELECTRONICS INC. CANON DR-6080/9080C REV.0 SEPT. 2003
CHAPTER 2 FUNCTIONS & OPERATION
4. Electrical Circuits
This machine uses three electrical circuits
consisting of a main CPU PCB, a pick-up control
PCB, and a document tray control PCB. A block
diagram of these three circuits is shown in Fig.
2-104.
The pick-up control PCB controls pick-up of
the document based on signals from the main
CPU PCB. The document tray control PCB
assembly controls the document tray based on
signals from the main CPU PCB assembly and the
pick-up control PCB.
Option
Mechanical
counter
CNT1
Feed
motor
Pick-up
motor
M3 M2
PS7 PS9
PS2 PS3 SL2
Front
registration
L sensor
Front
registration
R sensor
Front
registration
sensor PCB
Pick-up
sensor
Imprinter
door
sensor
Back registration
sensor
PS
Back
registration
sensor PCB
Shading
solenoid
(Upper side)
Upper unit
door sensor
PS5
PS6
PS10
Left-end
sensor
Right-end
sensor
Left-end
sensor
PCB
Right-end
sensor
PCB
Pick-up control PCB (0SUB)
Pick-up
solenoid
SL1
Imprinter PCB
Option
Endorser
Option
Power switch
SW 1
DC power
supply
PCB
Main CPU PCB
(MAINDCON)
Ultrasonic
sensor
PCB
USS1
Ultrasonic
(receiving)
sensor
Ultrasonic
drive
PCB
USS2
Ultrasonic
(transmitting)
sensor
Front reading unit
Back reading unit
Operation panel PCB
FM1
M1
Ehaust fan
Main motor
SL3
Staple
photo-sensor
Document tray control PCB (10SUB)
Shading solenoid
(Lower side)
Staple LED
PCB
PS4
VR1 PS1
CL1 M6 M5
Document
sensor
Document
guide
width
sensor
Document
tray HP
sensor
Registration
clutch
Document
tray
motor
Retard
motor
Fig. 2-104