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AssigneeCanon Kabushiki Kaisha
InventorsRinako Kameshima, Minoru Teshigawara, Yoshinori Misumi
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An inkjet printing apparatus comprises: a discharge head including orifices that discharges ink, a channel communicating with the orifices, a heating element that generates thermal energy for discharging the ink in the channel, a protection layer having a surface exposed to the channel and covering the heating element, and an electrode having a surface exposed to the channel; a tank that stores the ink to be supplied to the discharge head; an ink circulation unit that performs a circulation operation of circulating the ink between the discharge head and the tank; and a kogation removal unit that performs a removal operation of removing kogation generated around the heating element by applying a voltage between the protection layer and the electrode, wherein the kogation removal unit performs the removal operation after the circulation operation is stopped.
An inkjet printing apparatus comprising:
A method of controlling an inkjet printing apparatus including a discharge head including orifices configured to discharge ink, a channel communicating with the orifices, a heating element configured to generate thermal energy for discharging the ink in the channel, a protection layer having a surface exposed to the channel and covering the heating element, and an electrode having a surface exposed to the channel, and a tank configured to store the ink to be supplied to the discharge head, the method comprising:
Dependencies are inferred from the claim text.