Patent ID: 6600286
Filing Date: 2003-07-29
Classification: B41J

Abstract:
A motor control apparatus comprising:a position detector for detecting a position of paper to be driven by a paper feeding motor on the basis of encoder pulses output from an encoder that rotates in response to rotation of the paper feeding motor; a drive controller for controllably driving said paper feeding motor by additionally applying a current value to said paper feeding motor on the basis of a target feeding value of said paper and an output of said position detector; and a stop position prediction controller for instructing deenergization of the paper feeding motor a predetermined period of time later than arrival of the pages to be driven by the paper feeding motor at a predetermined position on the basis of said encoder pulses output from the encoder in response to rotation of the paper feeding motor, said predetermined period of time corresponding to a predetermined condition upon arrival of said paper to be driven at said predetermined position, and said predetermined position being at a predetermined distance before a target stop position of the paper to be driven, wherein a current value signal is generated causing said paper to stop or move in the reverse direction from the normal paper feeding direction in response to said encoder pulses output from said encoder after the feeding amount of said paper reaches said target feeding value, and the drive controller controllably drives said paper feeding motor by said drive controller in response to said current value signal.