Scanner Drive - Ricoh Di-C1.5a Manual

Scanner
HP Sensor
Motor and wire drive mechanism
Slide 117
The same motor drives the first and second scanners.
The first scanner contains the exposure lamp, reflectors, the 1st mirror, and
the lamp regulator. The second scanner contains the 2nd and 3rd mirrors.
The regulator is mounted on the scanner to reduce the wiring between the
lamp and the regulator.
The second scanner moves at half the speed of the first scanner. This is to
maintain the focal distance between lens and original.
In this machine, wires are used instead of timing belts. These are more difficult
to replace, but copy quality is better (less jitter).
Note that the operation in ADF mode is different from platen mode (as shown on
the previous page).
In ADF mode, the scanner goes to home position (detected by the home
position sensor), and stays there during scanning.
The scanner motor speed and image processing control the magnification.

Scanner Drive

117
Di-C1.5 Training
Scanner Motor