| 摘要 |
PROBLEM TO BE SOLVED: To provide an image processing device that can improve sheet transportability in a configuration of performing a feedback (FB) control of two motors individually driving two transportation rollers.SOLUTION: A motor control unit includes: an FB control unit 6a that calculates a difference P1a between a target value Pt and an actual transportation amount P1 by a transportation motor M1 with respect to one piece of a sheet; an FB control unit 6b that calculates a difference P2a between the target value Pt and an actual transportation amount P2 by a resist motor M2; and a deviation loop unit 6c that calculates a deviation E subtracting P1 from P2. An addition unit 62 outputs a value P1b obtained by adding an output value E1 to the difference P1a, and a subtraction unit 72 outputs a value P2b obtained by subtracting an output value E2 from the difference P2a. When both motors lag behind the target value Pt at a rising time and the transportation motor M1 lags behind the resist motor M2, the deviation E is positive, and the deviation E acts toward a speed-up direction with respect to the delaying M1 and the deviation E acts toward a deceleration direction with respect to the resist motor M2 faster than the transportation motor M1. Thus, the transportation amounts of both the motors are adjusted so as to be narrowed down. |
