Canon Kabushiki Kaisha

Canon Kabishiki Kaisha

Takumi Shimoda

Souta Takeuchi

Masaya Uyama

Toshiyasu Sakai

Atsunori Terasaki

Kazuaki Shibata

Ryoji Kanri

A liquid ejection apparatus includes a housing provided at least with an upper surface and side surfaces, and a liquid tank that is arranged in the housing and is refillable with a liquid from outside. A display unit that indicates a remaining liquid amount in the liquid tank is arranged at least at one of joining portions each joining the upper surface to one of the side surfaces.

Liquid ejection apparatus and liquid tank

A method for manufacturing a liquid discharge head comprising: a substrate, a protective layer covering at least a part of the substrate, and a laminate member formed on the protective layer, wherein the method comprises steps of: forming the protective layer on at least a part of the substrate; forming the laminate member on the protective layer with a part of the protective layer exposed, the protective layer comprises at least Si and C, a content of oxygen in a bulk of the protective layer is less than 20 atomic % in terms of an element composition ratio, a modified layer with a content of oxygen of 20 atomic % or more in terms of an element composition ratio is present on a surface of the protective layer, and a thickness of the modified layer between the protective layer and the laminate member is 3.40 nm or less.

Method for manufacturing liquid discharge head and liquid discharge head

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Kanagawa, Japan

Takumi Shimoda