Scanner Motor Drive Control - Minolta CF910 Service Manual

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1154SBM0906A

Scanner Motor Drive Control

Scanner Drive Motor M1, a stepping motor, is controlled by Master Board PWB-I, IR Con-

trol Board PWB-C, and Motor Drive Board PWB-G.

Scan Enable Signal

(SCAN-ENABLE)

Image Request Signal (I-REQ)

M1 Drive Pulse (PJ2C)

Transfer Drum Reference Position

Detecting Signal (T-BASE)

Reference Clock

The M1 drive pulse is timed

with the reference clock.

The direction of M1 rotation is

switched from forward to

backward, or vice versa, by

changing the output

sequence of pulses 1 to 5.

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