Title:
LIQUID CIRCULATION DEVICE, LIQUID DISCHARGE UNIT, AND LIQUID DISCHARGE DEVICE
Document Type and Number:
Japanese Patent JP2023139939
Kind Code:
A
Abstract:
To provide a technique which can easily return viscosity of liquid even when the viscosity of liquid is increased.SOLUTION: A liquid circulation device includes a liquid circulation system including a negative pressure tank and a positive pressure tank for storing liquid, a liquid transfer path for transferring the liquid to the negative pressure tank from the positive pressure tank through a liquid discharge head on the basis of a pressure difference between the negative pressure tank and the positive pressure tank, and a liquid regression path for regressing the liquid from the negative pressure tank to the positive pressure tank. The liquid circulation device further includes: an evaporation moisture content measuring section which measures an index related to evaporation moisture content evaporated from the liquid in the negative pressure tank or the positive pressure tank; a water supply pump which supplies water to the liquid circulation system; and a control section which controls an operation of the water supply pump on the basis of the index related to the evaporation moisture content measured by the evaporation moisture content measuring section.SELECTED DRAWING: Figure 1
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Inventors:
YUZA MASANAO
Application Number:
JP2022045724A
Publication Date:
October 04, 2023
Filing Date:
March 22, 2022
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
B41J2/175; B41J2/01; B41J2/18
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito
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