Motor control system and method for a laser scanning unit of an imaging apparatus

摘要

A scanning system for use in an imaging apparatus includes a mirror assembly having a rotating mirror with a plurality of facets, a motor operatively coupled to the rotating mirror and closed loop control circuitry coupled to the motor. The mirror assembly generates a lock signal indicative of whether or not the motor is substantially at a target speed. A controller is communicatively coupled to the mirror assembly for controlling rotation of the rotating mirror, the controller generating a reference signal received by the motor assembly indicating the target speed for the rotating mirror. The reference signal is varied based at least in part upon an acceleration profile that accelerates the motor so that overshoot of the target speed is substantially reduced.

主权项

1. A laser scan unit for an imaging apparatus, comprising:
a mirror assembly comprising a rotating mirror having a plurality of facets, a motor operatively coupled to the rotating mirror and closed loop control circuitry coupled to the motor, the mirror assembly generating a lock signal indicative of whether or not the motor is substantially at a target speed; and a controller communicatively coupled to the mirror assembly for controlling rotation of the rotating mirror, the controller generating a reference signal received by the mirror assembly, a characteristic of the reference signal indicating the target speed for the rotating mirror and varying based at least in part upon an acceleration profile.