Patent ID: 6879796

Claim:
A system for driving a photoreceptor belt, for an electrophotographic printing machine, at a predetermined operating speed comprising: a speed sensor operatively associated with said photoreceptor belt to sense the speed of the belt and generate a signal indicative thereof; a main drive motor and an assist drive motor operatively associated with said photoreceptor belt to apply a cumulative torque thereto, said cumulative torque being split between said main drive motor and said assist drive motor according to a predetermined function; a first control circuit for supplying an input voltage to said main drive motor to enable said main drive motor to generate a torque according to said predetermined function, said first control circuit including a circuit for receiving said speed signal from said speed sensor and comparing said indicated speed with a predetermined operating speed and further adjusting said input voltage relative to the difference; and a second control circuit for supplying an input voltage to said assist drive motor to enable said assist drive motor to generate a torque according to said predetermined function.