Stepper motor drive system in computer fanfold reproduction

Details Stepper motor drive system in computer fanfold reproduction Stepper motor drive system in computer fanfold reproduction

G - Physics

03

G

271/50

G03G 15/00 (2006.01) B65H 43/00 (2006.01)

Patent

CA 1154798

ABSTRACT OF THE DISCLOSURE An automatic duplicating system in which computer fanfold documents are fed by an automatic handling apparatus having a tractor and drive means for advancing the document across the platen of the processor for the system. An arrangment is provided which will control operation of the tractor and drive means, and use is made of a stepper motor having many, small angled rotational movements which can be digitally controlled. A logic circuit arrangement is provided to energize and control the motor so that precise positioning of an edge of each frame section of the fanfold document can be made relative to a platen registration edge. In addition, the logic circuit is adapted to effect acceleration and deceleration of the motor in a controlled sense.

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