| 摘要 |
A rotary-member control apparatus includes a rotary member that rotates while supporting an object on the outer curved surface of the member. A motor is supplied with current based on a current profile representing the magnitude pattern of current to rotate the rotary member. A detecting element detects a rotation state of the rotary member during rotation. A control unit generates a one-rotation current profile, representing the magnitude pattern of current corrected on the basis of the detected rotation state, corresponding to one rotation of the rotary member, and supplies corrected current to rotate the rotary member. When the length of the medium in the rotation direction, the length of the medium in the axial direction, or the type of the medium is changed, the control unit generates the one-rotation current profile before starting printing, and repeatedly supplies the corrected current to the motor to print the image.
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