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:
Jun. 09, 2020
Filed:
May. 30, 2019
Konica Minolta, Inc., Tokyo, JP;
Hiroshi Akita, Kokubunji, JP;
Taku Mitsuhashi, Hachioji, JP;
KONICA MINOLTA, INC., Tokyo, JP;
Abstract
A head cleaning device includes: a porous cleaning roller that rotates around a cylindrical axis while a cylindrical side circumferential surface is in pressure contact with a nozzle surface of an ink head to clean the nozzle surface; a storage tank that immerses a lower part of the cleaning roller in a cleaning liquid stored therein; a unit moving mechanism that moves a cleaning unit including the storage tank and the cleaning roller in a direction perpendicular to the axis of the cleaning roller; a hardware processor that controls a rotation speed [vr] of the cleaning roller and a moving speed [vx] of the storage tank and the cleaning unit; and a composition acquisition part that acquires a change in composition of the cleaning liquid in the storage tank due to mixing of ink supplied from the nozzle surface through the cleaning roller.