Title:
PRINTING DEVICE AND PRINTING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/195320
Kind Code:
A1
Abstract:
A return pump 552 for liquid feed of ink from a recovery tank 531 to a supply tank 511 is provided, and in parallel with execution of a printing differential pressure generation, differential pressure generation assistance for liquid feed of the ink from the recovery tank 531 to a return pipe 551 by means of a return liquid delivery unit 55 is executed (step S112). As a result, in the recovery tank 531, the volume of an air layer Vra above a gas-liquid interface L2 expands, depressurizing the air layer Vra, and in the supply tank 511, the volume of an air layer Vfa above a gas-liquid interface L1 is compressed, pressurizing the air layer Vfa. This assists the generation of a differential pressure between the recovery tank 531 and the supply tank 511.
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Inventors:
ONISHI HIDEAKI (JP)
Application Number:
PCT/JP2023/010400
Publication Date:
October 12, 2023
Filing Date:
March 16, 2023
Export Citation:
Assignee:
SCREEN HOLDINGS CO LTD (JP)
International Classes:
B41J2/175; B41J2/01; B41J2/18
Foreign References:
| JP2017109396A | 2017-06-22 | |||
| JP2020049826A | 2020-04-02 | |||
| JP2015167934A | 2015-09-28 | |||
| JP2019123090A | 2019-07-25 | |||
| JP2017159668A | 2017-09-14 | |||
| JP2010105169A | 2010-05-13 | |||
| US20160207317A1 | 2016-07-21 |
Attorney, Agent or Firm:
FURIKADO, Shoichi et al. (JP)
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