Printing apparatus and control method therefor
AssigneeCanon Kabushiki Kaisha
InventorsYuhei Oikawa, Toshiyuki Chikuma, Yutaka Kano, Kohei Sato, Takuya Fukasawa
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AssigneeCanon Kabushiki Kaisha
InventorsYuhei Oikawa, Toshiyuki Chikuma, Yutaka Kano, Kohei Sato, Takuya Fukasawa
Estimating the term…
A method for inspecting an ink discharge status based on a temperature change of an energy generating element includes calculating a difference value between a value obtained by statistics of information indicating ink discharge statuses obtained for a plurality of nozzles close to a target nozzle and the information obtained for the target nozzle; comparing the calculated difference value with a predetermined threshold; and judging the ink discharge status for the target nozzle based on a result of the comparison. This enables to appropriately detect a nozzle which is in a discharge failure status due to an ink droplet adhered to a discharge surface of a printhead or the like.
A printing apparatus comprising:
A printing apparatus comprising:
A method for controlling a printing apparatus, the printing apparatus comprising a printhead including a plurality of nozzles each configured to discharge liquid, and a plurality of energy generating elements respectively provided in the plurality of nozzles and each configured to generate energy used for discharging the liquid from a corresponding one of the nozzles, the method comprising:
A method for controlling a printing apparatus, the printing apparatus comprising a printhead including a plurality of nozzles each configured to discharge ink, a plurality of energy generating elements respectively provided in the plurality of nozzles and each configured to generate energy used for discharging the ink from a corresponding one of the nozzles, and a plurality of detection elements provided in correspondence with the plurality of energy generating elements, wherein each detection element detects a signal when a corresponding nozzle discharges ink, the method comprising:
Dependencies are inferred from the claim text.