Operation of the control unit

The control unit consists of an operator panel, a power supply unit, mechanism driver, an image processing control, and an interface control.

This scanner has the following circuit configuration:

•Operator panel

•Control circuit (MPU)

•Video circuit (front-side/back-side)

•Interface circuit

•Duplex circuit (back-side)

•Motor driver circuit (including a stepper motor, a clutch driver)

•Power supply unit

•Image processing circuit (IPC II option)

•Memory board

Figure 1.5 shows control block diagram.

Host Interface

machine circuit

100 to 120 VAC

220 to 240 VAC

Control

 

 

 

 

 

 

 

 

Video

 

 

 

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

 

 

 

(MPU )

 

 

 

 

 

 

 

 

(front-side)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Video

 

 

 

 

 

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(back-side)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power

 

 

 

 

 

 

 

Duplex

supply

 

 

 

circuit

 

 

 

 

 

 

 

 

Memory board

Motor

Power driver

switchcircuit

Operator panel

Mechanism

unit

ADF

MF

Image processing circuit II (option) (front-side)

Image processing circuit II (option) (back-side)

Figure 1.5 Control block diagram

1-8

M3099EX/EH OEM Manual