- 专利标题: Liquid discharge head, liquid discharge device, and liquid discharge apparatus
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申请号: US15844831申请日: 2017-12-18
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公开(公告)号: US10179452B2公开(公告)日: 2019-01-15
- 发明人: Masami Iwama , Yukio Otome , Takahiro Yoshida , Takakazu Kihira , Takayuki Nakai , Shiomi Andou , Isamu Suzuki , Ryuji Yoshida , Kanshi Abe , Junichi Iwata , Katsuya Ishii , Toshimichi Odaka
- 申请人: Masami Iwama , Yukio Otome , Takahiro Yoshida , Takakazu Kihira , Takayuki Nakai , Shiomi Andou , Isamu Suzuki , Ryuji Yoshida , Kanshi Abe , Junichi Iwata , Katsuya Ishii , Toshimichi Odaka
- 申请人地址: JP Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2017-002053 20170110; JP2017-213790 20171106
- 主分类号: B41J2/175
- IPC分类号: B41J2/175 ; B41J2/14 ; B41J2/17
摘要:
A liquid discharge head includes a plurality of nozzles from which liquid is discharged, a plurality of individual-liquid-chambers communicating with the plurality of nozzles, respectively, a plurality of individual-drainage-channels communicating with the plurality of individual-liquid-chambers, respectively, a drainage-side common-liquid-chamber communicating with each of the plurality of individual-drainage-channels, a filter having filter holes and disposed between the plurality of individual-drainage-channels and the drainage-side common-liquid-chamber, and an intermediate-drainage-channel disposed between the filter and the plurality of individual-drainage-channels. The intermediate-drainage-channel faces the filter and communicates with two or more of the plurality of individual-drainage-channels. A cross-sectional area of the intermediate-drainage-channel is greater than a cross-sectional area of each of the plurality of individual-drainage-channels communicating with the intermediate-drainage-channel in a direction perpendicular to a direction of liquid flow.
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