Patent ID: 6925279

Claim:
A device for moving a belt with an output torque of a motor, said device comprising: a drive shaft configured to cause the belt to move; transmitting means for transmitting the output torque of the motor to said drive shaft; marker sensing means for sensing a marker, which is provided on the belt, to thereby determine a position of said belt in a direction of movement of said belt; rotation condition sensing means for sensing a rotation condition of said drive shaft; first correction information generating means for generating, based on an output of said marker sensing means, correction information for correcting the position of the belt in the direction of movement; second correction information generating means for generating, based on an output of said rotation condition sensing means, correction information for correcting a rotation condition of said drive shaft; and control means for controlling a movement of the motor in accordance with said correction information output from said first correction information generating means and said second correction information generating means, wherein said correction information generated by said first correction information generating means has a lower maximum response frequency than said correction information generated by said second correction information generating means.