Invention Grant
- Patent Title: Fluid ejection device
- Patent Title (中): 流体喷射装置
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Application No.: US14682983Application Date: 2015-04-09
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Publication No.: US09561049B2Publication Date: 2017-02-07
- Inventor: Masaki Gomi , Hiroyuki Yoshino
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Maschoff Brennan
- Priority: JP2014-080828 20140410
- Main IPC: A61B17/3203
- IPC: A61B17/3203

Abstract:
A fluid ejection device includes a fluid accommodation portion having an outlet and a fluid pressing unit that causes the fluid to flow out of the fluid outlet through a channel. A fluid ejection unit ejects in a pulsed manner the fluid received from a fluid intake port connected to the channel. A pressure detection unit detects an inner pressure of the fluid accommodation portion. A press control unit controls the inner pressure of the fluid accommodation portion to approach a target pressure value when the channel is closed. A channel determination unit determines that the channel is not closed if a detected movement speed of the fluid pressing unit is a predetermined speed or greater when a predetermined amount of time has elapsed after a difference between the inner pressure of the fluid accommodation portion and the target pressure value becomes less than a predetermined value.
Public/Granted literature
- US20150289898A1 FLUID EJECTION DEVICE Public/Granted day:2015-10-15
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