Various Control; Controlling The Scanner Drive System; Overview; Controlling The Scanner Motor <Ir7105/7095 - Canon imageRUNNER 7095 Service Manual

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5.3 Various Control

The following shows the components associated with the scanner drive system:

[1] Scanner Motor M501 Drive Signal

starts/stops the motor; controls the direction and speed of its rotation

[2] Scanner HP Detection Signal

detects the presence of the No. 1 mirror base at home position

5.3.1.2 Controlling the Scanner Motor <iR7105/7095>

The configuration of the system used to control the scanner motor is as follows; the motor driver on the

interface PCB operates according to the signals from the CPU to start/stop the scanner motor and to control

the direction and speed of its rotation

Reader controller PCB

a. Reverse Movement After a Scan

After an image scan, the No. 1 mirror base is moved in reverse as far as the shading position at 325 mm/

sec regardless of the selected magnification.

b. Forward Movement During a Scan

During an image scan, the No. 1 mirror base is controlled at the speed indicated in the following figure;

the No. 1 mirror base is moved forward at 325 mm/sec for 100% magnification.

[1] Scanner motor control signal

Scanner motor

Light-blocking plate

Interface PCB

Motor driver

No.1 mirror base

Scanner motor

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