Invention Grant
- Patent Title: Liquid discharge apparatus and liquid discharge head
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Application No.: US15389249Application Date: 2016-12-22
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Publication No.: US09889673B2Publication Date: 2018-02-13
- Inventor: Yoshiyuki Nakagawa , Shuzo Iwanaga , Shingo Okushima , Mikio Sanada , Shin-ichi Hakamada
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2016-002959 20160108; JP2016-238633 20161208
- Main IPC: B41J2/18
- IPC: B41J2/18 ; B41J2/14

Abstract:
A liquid discharge apparatus has a liquid discharge head having a recording element board that includes a plurality of discharge orifices configured to discharge liquid, a plurality of pressure chambers internally provided with a recording element configured to generate energy used to discharge liquid, the plurality of pressure chambers each communicating with the plurality of discharge orifices via discharge channels, a liquid supply channel configured to supply liquid to the plurality of pressure chambers, and a liquid recovery channel configured to recover liquid from the plurality of pressure chambers, and a tank configured to store liquid supplied to the liquid discharge head. The plurality of pressure chambers communicate between the liquid supply channel and the liquid recovery channel so that liquid flows through the plurality of pressure chambers, and the specific permittivity εr of the liquid stored in the tank satisfies the relationship of εr≦65.
Public/Granted literature
- US20170197433A1 LIQUID DISCHARGE APPARATUS AND LIQUID DISCHARGE HEAD Public/Granted day:2017-07-13
Information query
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