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AssigneeCanon Kabushiki Kaisha
InventorsFumi Tanaka, Yuzuru Ishida, Yoshinori Misumi, Keiji Tomizawa
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The present disclosure aims to obtain stable ejection characteristics after performing removal of burnt-on deposits. An embodiment of the present invention is a liquid ejection apparatus including: a liquid ejection head having an ejection port from which to eject liquid, a thermal action unit having a heat generating element for generating energy required to eject the liquid, and a first protective layer provided to block a contact between the thermal action unit and the liquid and formed of a material containing metal that dissolves into the liquid by having an electrochemical reaction with the liquid; and a control unit configured to perform a cleaning process to remove burnt-on deposits accumulating on the first protective layer by dissolving the first protective layer through an electrochemical reaction and perform an aging process to accumulate burnt-on deposits onto the first protective layer after the cleaning process.
A liquid ejection apparatus comprising:
A method for controlling a liquid ejection apparatus including (A) a liquid ejection head comprising (1) an ejection port from which to eject liquid,
A non-transitory computer-readable storage medium storing a program for causing a computer to execute a method for controlling a liquid ejection apparatus, the liquid ejection apparatus including (A) a liquid ejection head comprising (1) an ejection port from which to eject liquid, (2) a thermal action unit having a heat generating element for generating energy required to eject the liquid, and (3) a first protective layer provided to block a contact between the thermal action unit and the liquid and formed of a material containing metal that dissolves into the liquid by an electrochemical reaction with the liquid and (B) a control unit, the method comprising causing the control unit to execute:
Dependencies are inferred from the claim text.