The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2026
Filed:
Sep. 20, 2024
Screen Holdings Co., Ltd., Kyoto, JP;
Yasunori Akiyoshi, Kyoto, JP;
SCREEN Holdings Co., Ltd., Kyoto, JP;
Abstract
An ink supplier includes a supply reservoir and a recovery reservoir that are connected to a plurality of heads. If abnormality is detected at one of a first and a second pressure regulator that supply negative pressures to the supply reservoir and the recovery reservoir respectively, a controller performs a) cutting off the pressure regulator on the abnormal side and the reservoir from each other; b) opening a bypass valve interposed in a bypass pipe forming communication between an air layer in the supply reservoir and an air layer in the recovery reservoir; c) regulating a negative pressure supplied from the pressure regulator on the normal side to a third negative pressure between a first negative pressure supplied from the first pressure regulator in ordinary time and a second negative pressure supplied from the second pressure regulator in the ordinary time; and d) maintaining the third negative pressure.