Invention Grant
- Patent Title: Liquid ejecting apparatus and liquid ejecting method
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Application No.: US16451135Application Date: 2019-06-25
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Publication No.: US11040529B2Publication Date: 2021-06-22
- Inventor: Keigo Sugai
- Applicant: Seiko Epson Corporation
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JPJP2018-120388 20180626
- Main IPC: B41J2/045
- IPC: B41J2/045 ; B41J2/175 ; B41J2/14 ; B41J2/18

Abstract:
A liquid-ejecting-apparatus includes a nozzle that ejects liquid with a viscosity of 50 mPa·s or higher; a pressure-chamber communicating with the nozzle; a pressure-change-portion that changes a pressure of the liquid in the pressure-chamber; and a controller that controls the pressure-change-portion. The controller executes first control of decreasing the pressure of the liquid in the pressure-chamber, hence pulling a center portion of a meniscus toward the pressure-chamber, and forming a liquid-membrane with the liquid at an inner-wall-surface of the nozzle; and second control of, in a state in which the liquid-membrane is formed at the inner-wall-surface of the nozzle, increasing the pressure of the liquid in the pressure-chamber, hence inverting a shape of the center portion of the meniscus to a protruding shape protruding toward an opening of the nozzle and forming a liquid-column, and further, ejecting the liquid-column so as not to contact the liquid membrane.
Public/Granted literature
- US20190389207A1 LIQUID EJECTING APPARATUS AND LIQUID EJECTING METHOD Public/Granted day:2019-12-26
Information query
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