Main Unit Feed Motor Control Circuit - Printronix L5535 Maintenance Manual

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Explanation Of Circuits According To Function

Main Unit Feed Motor Control Circuit

The main unit feed motor drives the transmission shaft that rotates the

transfer belt. It pulls the paper that is sent at the speed controlled by the

tractor motor or drum motor. Since paper tends to go slack near the

perforation, the rotation is set about 5% faster than that of the tractor motor or

Main Unit Feed Motor Control Circuit

Driver Circuit

Main unit feed motor drive signal

Alarm to indicate abnormality in motor revolution

Output signal from the selected encoder

Feed Motor Encoder

19 Pulse (Fanfold Sheet)

Sensor Interface

Mode Selection