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Flatbed unit and ADF system
Electrical system
The scanner-assembly electrical system consists of the following components:
●
The charged-coupled device (CCD) PCA (optical assembly)
●
The inverter
●
The scanner controller board
●
The ADF intermediate board
Figure 4-1 Scanner assembly electrical structure on page 29 shows the scanner-assembly electrical
structure.
CCD
ADF open sensor
Solenoid
Paper detect
Scanner/controller
board
ADF
SENPW R
Solenoid drive circuit
ADF intermediate
PCA
Fan drive circuit
Fan drive circuit
Motor drive circuit
+24V
Motor drive circuit
Motor drive circuit
Feed motor
Read motor
Carriage motor
Flatbed fan
Carriage home sensor
PCA
Inverter
Lamp
Scanning
Image
scanner
ADF fan
Cover open sensor
Empty sensor
Registration sensor
Read sensor
Exit sensor
Bin full sensor
Carriage (Optical scan unit)
Formatter
Figure 4-1 Scanner assembly electrical structure
ENWW Flatbed unit and ADF system 29