Scanner Motor - Oce 3121 Technical & Service Manual

3 Scanner Motor

Outline
The scanner motor (M2) is a stepping motor. The motor is controlled by the
DC control PBA.
The CPU on the DC control PBA transmits signals through the I/O circuit to
the motor controller PBA. The signals are: clockwise rotation (moving the
scanner forward), counter-clockwise rotation (moving the scanner in reverse),
and rotation speed.
The motor control circuit follows the instructions from the CPU, and sends
pulse signals to the power control circuit. The power control circuit, in turn, ac-
cordingly supplies power to the scanner motor (M2), causing the scanner mo-
tor to rotate.
DC controller
CPU
ed.1
24V
Motor
I/O
controller
2
1
3
M2
4
5
04 Exposure 503