2-3-3
Scanner PWB
Image scanner
unit (ISU)
Exposure lamp
Home
position
Inverter
sensor
PWB
CCD PWB
Control PWB
Document
processor (DP)
DP
paper
feed
motor
ISU
motor
Motor
driver
Motor
driver
LAMP
Regulator
Power save
circuit
AFE
CSI
ASIC
Figure 2-3-5Scanner PWB block diagram
DP timing
sensor
DP
paper
DP switchback
feed
pressure
clutch
solenoid
Driver
Driver
CPU
DP original
sensor
DP
DP switchback
open/close
feedshift
sensor
solenoid
Driver
DP driver PWB
Scanner PWB
+24V1
Power source
PWB
2JN
2-3-9