Title:
LIQUID SUPPLY DEVICE, METHOD FOR CONTROLLING LIQUID SUPPLY DEVICE, AND PRINTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/102526
Kind Code:
A1
Abstract:
Provided are a liquid supply device, a method for controlling a liquid supply device, and a printing device that have no adverse effect on ejection with a contaminated liquid and effectively prevent sinking. A sequence including first processing and second processing is performed. The first processing causes a liquid inside a first flow path including at least a part of a circulation flow path that supplies the liquid from a liquid tank to the liquid ejection head and collects the liquid from the liquid ejection head into the liquid tank to generate a positive flow in a first direction. The second processing causes the liquid inside the first flow path to generate a negative flow in the direction opposite to the first direction. In the first flow path, a filter that removes foreign matter inside the liquid of the positive flow from the liquid tank to the liquid ejection head is arranged, the flow rate of the liquid of the positive flow is greater than that of the liquid of the negative flow, and the negative flow has a steady flow state.
Inventors:
KYOSO TADASHI (JP)
Application Number:
PCT/JP2021/040721
Publication Date:
May 19, 2022
Filing Date:
November 05, 2021
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
B41J2/18; B41J2/175; B41J2/21
Domestic Patent References:
| WO2011132256A1 | 2011-10-27 |
Foreign References:
| JP2008238750A | 2008-10-09 | |||
| JP2014111334A | 2014-06-19 | |||
| JP2014188926A | 2014-10-06 | |||
| US20120050357A1 | 2012-03-01 | |||
| JP6111658B2 | 2017-04-12 | |||
| JP3846083B2 | 2006-11-15 |
Other References:
See also references of EP 4245546A4
Attorney, Agent or Firm:
MATSUURA, Kenzo (JP)
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