| 摘要 |
A method of controlling a drive motor that is provided to a printer to apply a driving force to a predetermined operation section that operates in an image printing operation of printing on a printing sheet. The method includes steps of: measuring, in a no-image-printing operation of not printing on the printing sheet, an initial operation time of the predetermined operation section by driving initially the drive motor to operate the operation section; driving, in the image printing operation of printing on the printing sheet, the drive motor with a first output from an operation start time to a time calculated by multiplying the initial operation time by a coefficient that is larger than 0 but smaller than 1; and driving, until an operation end time after the drive motor is driven with the first output, the drive motor with a second output that is determined based on the initial operation time.
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