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Service Guide ML393/ML393CPlus
Chapter 2 Principles of Operation
2.1.07 Line Feed Circuit
The Line Feed Motor Shaft is held stationary by +8 vdc supplied according to the pulse duty cycle of the
LFCHOP signal (the holding current is approximately 30 ma) whenever in a stopped position.
During line feed operation, the Line Feed Motor is driven by +38 vdc in accordance with the LFOVDV-N
signal. The signals LF Phase 1 through LF Phase 4 establish the proper phase relationship for driving the
motor.
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