摘要 |
<p>The method involves setting a fundamental frequency (f-0-t) for driving a motor (11), and driving the motor with the fundamental frequency, where a mean radius (R-0) of a body (2) is provided. The change in radius of the body is determined during the rotation of the body. A correction value is calculated for a print timing of a printing unit (6). The printing unit is activated with a frequency for the print timing.</p> |