Printing apparatus and printing apparatus control method
AssigneeCanon Kabushiki Kaisha
InventorsAtsushi Shimizu, Masaaki Matsuura, Tsuyoshi Otani, Ken Hoshino
Life of this patent
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Abstract
A method of moving a cap apart from a printhead within a short period of time without damaging a printing apparatus when the cap sticks to the printhead. A cap moving unit is driven to try to move the cap apart from the printhead. When a detection unit for detecting that the cap has moved apart from the printhead detects that the cap has not moved apart from the printhead, it is controlled to slightly reciprocate the carriage while driving the cap moving unit. When the detection unit detects that the cap has moved apart from the printhead under this control, the slight reciprocation of the carriage is forcibly stopped.
Claims7
A printing apparatus having a carriage which scans a printhead for discharging ink from a nozzle, a cap which caps a nozzle formation surface, and cap moving means for driving the cap to move, the apparatus comprising:
- detection means for detecting that the cap has moved apart from the printhead from a state in which the cap caps the printhead;
- control means for, when the cap moving means is driven to try to move the cap apart from the printhead and the detection means detects that the cap has not moved apart from the printhead, controlling to move the carriage while driving the cap moving means;
- and
- stop means for forcibly stopping moving the carriage when the detection means detects that the cap has moved apart from the printhead under control of the control means.
A method of controlling a printing apparatus including a carriage which scans a printhead for discharging ink from a nozzle, a cap which caps a nozzle formation surface, and cap moving means for driving the cap to move, the method comprising:
- when the cap moving means is driven to try to move the cap apart from the printhead, and detection means for detecting that the cap has moved apart from the printhead detects that the cap has not moved apart from the printhead, controlling to move the carriage while driving the cap moving means;
- and
- forcibly stopping moving the carriage in a case where the detection means detects that the cap has moved apart from the printhead in the controlling step.
A printing apparatus comprising:
- a printhead configured to discharge ink from a nozzle;
- a carriage configured to scans the printhead;
- a cap configured to cap a nozzle formation surface;
- a cap moving unit configured to drive the cap to move;
- a detection unit configured to detect that the cap has moved apart from the printhead from a state in which the cap caps the printhead;
- a controller configured to, when the cap moving unit is driven to try to move the cap apart from the printhead and the detection unit detects that the cap has not moved apart from the printhead, control to move the carriage while driving the cap moving unit;
- and
- a stop unit forcibly stopping moving the carriage when the detection unit detects that the cap has moved apart from the printhead under control of the controller.
Dependencies are inferred from the claim text.