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.

Scanner/controller

 

Carriage (Optical scan unit)

board

 

CCD

 

 

 

Inverter

Scanning

 

PCA

Lamp

 

Carriage home sensor

 

 

ADF open sensor

Image

Fan drive circuit

Flatbed fan

scanner

 

 

Motor drive circuit

Carriage motor

 

Motor drive circuit

Feed motor

A D F

Motor drive circuit

Read motor

 

Solenoid drive circuit

Solenoid

 

Fan drive circuit

 

ADF fan

 

 

Cover open sensor

 

 

Empty sensor

 

ADF intermediate

Registration sensor

 

Read sensor

 

PCA

 

Exit sensor

 

 

 

 

Bin full sensor

Paper detect

+ 2 4 V

Formatter

S E N P W R

Figure 4-1Scanner assembly electrical structure

ENWW

Flatbed unit and ADF system 29