Canon Kabushiki Kaisha

Toru Kanda

Yuki Kozuka

Hiroki Tajima

Takeshi Shibata

A liquid ejection recording head includes a recording element substrate including an ejection energy generation element and a plurality of electrode pads, the ejection energy generation element being configured to generate ejection energy by which to eject a liquid, the liquid ejection recording head also includes an electric wiring substrate including a plurality of lead electrodes connected to corresponding electrode pads to apply an electric signal to the ejection energy generation element, wherein one or more of the plurality of electrode pads are not connected to any lead electrode, and each lead electrode connected to an electrode pad adjacent to any of the one or more of the plurality of electrode pads not connected to any lead electrode has a wide part whose width is greater than the width of the other lead electrodes.

Liquid ejection recording head

A method of manufacturing an ink jet print head allows an adhesive bonding a printing element substrate to a support member to be temporarily hardened efficiently and stably in a short time so as to achieve bonding with no air path or the like created at a bonding interface. Electrothermal transducing elements in the printing element substrate generate heat to temporarily harden the adhesive.

Method of manufacturing ink jet print head

To provide an ink jet recording head, by which a recording operation with a high recording quality can be performed without causing deformation or breakage of a recording element substrate and the manufacture cost is reduced, a filling groove filled with sealant for protecting a recording element substrate from ink includes a salient or divider.

Ink jet recording head with sealant filling region in substrate

In spite of relative deformation between a printing element substrate and a supporting member due to a change in temperature of a printing head, the printing quality is stabilized, and the printing head is not damaged. In detail, as the temperature of the supporting member and the printing element substrate, which are adhered to and fixed to each other in an expanded state, falls to the room temperature, the supporting member contracts significantly more than the printing element substrate, and a stress relation is caused to be present between the respective members. At this time, ribs are deformed in the direction of widening the ribs, which is the direction toward the outside of the printing element substrate, whereby the above-described difference in deformation can be absorbed, and influence on the printing element substrate can be relieved.

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Oita, Japan

Toru Kanda