Printing apparatus and printing method

摘要

The present invention provides a printing apparatus which prints while reciprocating a carriage by a motor, comprising a gear member configured to be attached to a rotor of the motor, a belt configured to be attached to the carriage, to include unevenness corresponding to teeth of the gear member, and to be suspended to be engaged with the gear member, a storage unit configured to store data of a signal for suppressing a velocity fluctuation of the carriage when no tooth jumping occurs between the gear member and the belt, a detection unit configured to detect generation of the tooth jumping from the velocity fluctuation of the carriage during movement of the carriage, and a correction unit configured to correct the velocity fluctuation of the carriage by using the stored data of the signal for suppressing when the tooth jumping occurs.

主权项

1. A printing apparatus which prints while reciprocating, by a motor in a predetermined direction, a carriage on which a printhead is mounted, comprising:
a gear member configured to be attached to a rotor of the motor; a belt configured to be attached to the carriage, to include unevenness corresponding to teeth of said gear member, and to be suspended to be engaged with said gear member; a storage unit configured to store data of a plurality of signals having different periods, respectively, for suppressing a velocity fluctuation of the carriage when no tooth jumping occurs between said gear member and said belt; a detection unit configured to detect generation of the tooth jumping from the velocity fluctuation of the carriage during movement of the carriage; and a correction unit configured to correct the velocity fluctuation of the carriage by using a signal obtained by shifting phases of the respective signals in the stored data by an amount corresponding to the tooth jumping and combining the signals whose phases are shifted respectively when the tooth jumping occurs.