Title:
DROPLET EJECTION DEVICE AND DROPLET EJECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/124295
Kind Code:
A1
Abstract:
[Problem] To provide a droplet ejection device and a droplet ejection method, in which a liquid material can be continuously delivered to an ejection head when delivering the liquid material between arbitrary tanks. [Solution] Provided are a droplet ejection device and a droplet ejection method using said device, the droplet ejection device comprising: a droplet ejecting head; a supply tank communicating with a first pressure source; a recovery tank communicating with a first negative pressure source; a replenishment tank communicating with the supply tank and the recovery tank; an opening/closing valve A for opening and closing a fluid passage communicating the supply tank and the replenishment tank; an opening/closing valve B for opening and closing a fluid passage communicating the recovery tank and the replenishment tank; a switching valve for switching between communication of the replenishment tank and a second pressure source and communication of the replenishment tank and a second negative pressure source; and a control device, wherein the control device has: an ejection mode in which a liquid material is ejected from the droplet ejection head; a replenishment mode in which the liquid material is delivered from the replenishment tank to the supply tank while the liquid material is delivered from the supply tank to the recovery tank; and a recovery mode in which the liquid material is delivered from the recovery tank to the replenishment tank while the liquid material is delivered from the supply tank to the recovery tank.
Inventors:
IKUSHIMA KAZUMASA (JP)
Application Number:
PCT/JP2018/046286
Publication Date:
June 27, 2019
Filing Date:
December 17, 2018
Export Citation:
Assignee:
MUSASHI ENG INC (JP)
International Classes:
B05C11/10; B05C5/00; B05D1/26; B05D3/00; B41J2/175; B41J2/18
Foreign References:
| JP2017047413A | 2017-03-09 | |||
| JP2017217612A | 2017-12-14 | |||
| JP2009160558A | 2009-07-23 | |||
| JPH08215626A | 1996-08-27 | |||
| JP2009028676A | 2009-02-12 | |||
| JP2016175186A | 2016-10-06 |
Other References:
See also references of EP 3730222A4
Attorney, Agent or Firm:
SUDO, Akinobu et al. (JP)
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