公开(公告)号：US20250108626A1

公开(公告)日：2025-04-03

申请号：US18897186

申请日：2024-09-26

Applicant: Konica Minolta, Inc.

Inventor： Hiroshi SHIBATA

IPC: B41J2/19 ,  B41J2/21

Abstract: A deaeration apparatus includes: an external reflux type deaeration module that includes a gas permeable membrane capable of removing a gas dissolved in ink; and a hardware processor that performs discharging control of discharging ink having soaked in the gas permeable membrane. The hardware processor performs the discharging control for multiple colors simultaneously.

公开(公告)号：US20250083451A1

公开(公告)日：2025-03-13

申请号：US18882260

申请日：2024-09-11

Applicant: Konica Minolta, Inc.

Inventor： Hiroshi AKITA ,  Akihiro OKUNO ,  Hiroshi SHIBATA ,  Eiji TABATA

IPC: B41J2/19 ,  B01D19/00

Abstract: Provided is a deaeration device that includes an external reflux-type deaeration module including a gas permeable membrane capable of removing dissolved gas in liquid, and a hardware processor. The deaeration module includes a first vacuum chamber that communicates with a first end of the gas permeable membrane, a second vacuum chamber that communicates with a second end of the gas permeable membrane, and an atmospheric vent valve that opens or closes an inside of the deaeration module to atmosphere. The hardware processor determines a deterioration in deaeration performance of the deaeration module based on a pressure difference between the first vacuum chamber and the second vacuum chamber when the atmospheric vent valve is closed.