Print out this category
Controls
Controlling the Scanner Drive System
Overview
Parts configuration of scanner drive is described below.
- Scanner motor (M21) drive signal
Turns on/off the motor and controls its direction/speed of rotation.
- CCD HP sensor (S22) detection signal
Checks if CCD is at home position.
- Copyboard cover open/closed sensor (front: S21/rear: S26) detection signal
Detects the open/close status of the copyboard cover
Scanner Motor Control
Scanner motor driver turns on/off the motor and controls its direction/speed of rotation according to the signals from CPU.
MEMO:
The scanning speed of this machine is as follows.
Black/white (600dpi x 600dpi):249.5mm/sec
Color SEND(600dpi x 300dpi):173.2mm/sec
1) Forward movement when scanning an image
CCD operation is controlled by the following sensors when scanning the image.
2) Backward movement after scanning an image
After scanning an image, CCD moves backward to CCD shading position at a specific speed (249.5 mm/sec).