PRINT CONTROLLING APPARATUS

PROBLEM TO BE SOLVED: To provide a print controlling apparatus capable of effectively decreasing periodic change of a cogging torque and a load without storing waveform information sampled by multiple values in a waveform memory. SOLUTION: The print controlling apparatus includes: a correction period setting means which sets the starting phase of a pulse of a correction signal and the finishing phase of the pulse within one period of the correction signal; a correction signal phase forming means which forms the phase within one period of the correction signal in proportion to the angle of rotation of a motor detected, and returns the phase to an original point on every period of the correction signal; a correction signal forming means which forms the correction signal being a pulse waveform with an amplitude corresponding to the correction period when the phase within one period of the correction signal formed is within the correction period; and a correction means for correcting a motor driving command signal by the formed correction signal. COPYRIGHT: (C)2011,JPO&INPIT