Speed control for document handling system

In a document handling system having a feeder station operative in response to a feeder control signal to sequentially feed documents from a stack, and a transport station including conveyor means operative in response to a transport control signal to convey documents from the feeder station along a transport path, the combination therewith comprising speed control means including first variable control means for generating a transport control signal, second variable control means for generating a feeder control signal, means operatively coupled to said first and second variable control means for generating an offset voltage, and means for adding said offset voltage to said transport control signal and to said feeder control signal.

A speed control for use with a document handling system including a document feeder station operative in response to a feeder control signal to feed documents from a stack, and a transport station having conveyor means operative in response to a transport control signal to convey documents from the feeder station along a transport path, said speed control including first circuit means operable to generate a transport control signal, second circuit means operative to establish a feeder control signal that is proportional to said transport control signal, and means enabling adjustment of said transport control signal so as to simultaneously adjust said feeder control signal proportionally.

A document handling system comprising, in combination, a transport station including conveyor means, a feeder station operative to feed documents from a stack in sequential fashion to said conveyor means, a discrete drive motor controller operatively associated with each of said feeder and transport stations, each said drive motor controller including a speed control adapted to apply a control signal to its corresponding transport station motor controller or feeder station motor controller, said feeder station motor controller being slaved to the transport station motor controller so as to enable changes in document feeder and transport speed through actuation of either of said motor controller, and gap control means enabling adjustment of the gap between successive documents so as to accommodate different size documents.