Printing apparatus and print timing control method
AssigneeCanon Kabushiki Kaisha
InventorTomoki Kobayashi
Life of this patent
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Abstract
There is provided a printing apparatus that can perform print timing control while moving a print head with high precision even when variation in moving speed of the print head is relatively large. More specifically, a prediction speed is obtained based on a detected moving speed of the print head and a control target speed at the time of detection, and then a print timing of the print head is controlled based on the prediction speed. Accordingly, a correction speed of the print timing is considered to be the obtained prediction speed. This makes it possible to minimize a landing error even when a speed variation is large.
Claims5
A printing apparatus for performing printing by moving a print head relative to a print medium, the printing apparatus comprising:
- a detection unit configured to detect a moving speed of the print head;
- a driving control unit configured to control a driving mechanism for driving the print head based on the detected moving speed of the print head and a target speed so that the print head moves at a moving speed that is made closer to the target speed;
- and
- a timing control unit configured to obtain a prediction speed based on the detected moving speed and the target speed and control a print timing of the print head based on the prediction speed.
A print timing control method for performing printing by moving a print head relative to a print medium, the print timing control method comprising:
- a detection step for detecting a moving speed of the print head;
- a driving control step for controlling a driving mechanism for driving the print head based on the detected moving speed of the print head and a target speed so that the print head moves at a moving speed that is made closer to the target speed;
- and
- a timing control step for obtaining a prediction speed based on the detected moving speed and the target speed and control a print timing of the print head based on the prediction speed.
Dependencies are inferred from the claim text.