Inkjet recording head and manufacturing method thereof
AssigneeCanon Kabushiki Kaisha
InventorTakanori Enomoto
Life of this patent
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Abstract
An inkjet recording head, wherein a support member being formed by at least two layers is provided between an ink supply member and a recording element substrate having a substrate, which includes discharge ports to discharge ink and an energy generating element to generate energy to discharge the ink from the discharge ports.
Claims13
An inkjet recording head comprising:
- a recording element substrate including discharge ports facilitating discharging ink and a substrate provided with an energy generating element configured to generate energy to discharge ink through the discharge ports;
- an ink supply member configured to supply ink to the recording element substrate;
- and
- a support member provided between the ink supply member and the recording element substrate, the support member being formed by at least two layers,
- wherein when the linear expansion coefficient of the ink supply member is denoted by α, the linear expansion coefficient of the recording element substrate is denoted by β, and the linear expansion coefficient of the support member's n-th layer, in which n is an integer equal to or larger than 2, from the recording element substrate is denoted by γn, the condition of α>γn> . . . >γ1>β is satisfied.
A method for manufacturing an inkjet recording head that includes a recording element substrate provided with an energy generating element configured to discharge a liquid from discharge ports, and an ink supply member configured to supply ink to the recording element substrate, comprising:
- when a support member is fixed in a mold for the ink supply member, adding a material for forming the ink supply member into the mold to integrate the ink supply member and the support member in one piece;
- and
- joining the recording element substrate and the supply member together.
An inkjet recording head comprising:
- a recording element substrate including discharge ports facilitating discharging ink and a substrate provided with an energy generating element configured to generate energy to discharge ink through the discharge ports;
- an ink supply member configured to supply ink to the recording element substrate;
- and
- a support member provided between the ink supply member and the recording element substrate, the support member being formed by at least two layers.
An inkjet recording head comprising:
- a recording element substrate including discharge ports facilitating discharging ink and a substrate provided with an energy generating element configured to generate energy to discharge ink through the discharge ports;
- an ink supply member configured to supply ink to the recording element substrate, wherein the ink supply member is formed integrally with an ink storage member that contains ink and the support member is formed integrally with the ink supply member;
- and
- a support member provided between the ink supply member and the recording element substrate, the support member being formed by at least two layers.
Dependencies are inferred from the claim text.