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:
Apr. 20, 2010
Filed:
Sep. 06, 2006
Juichi Furukawa, Kanagawa, JP;
Toshitaka Osanai, Kanagawa, JP;
Juichi Furukawa, Kanagawa, JP;
Toshitaka Osanai, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An ink supplying container is disclosed. In the ink supplying container, when the internal pressure of an ink container is made a positive pressure which is higher than atmospheric pressure so that nozzles of a recording head are cleaned and recovered by discharging a small amount of ink, a volume control unit restrains a flexible member of the ink container from expanding. When the internal pressure of the ink container is made a negative pressure optimal for printing which is lower than the atmospheric pressure so that a letter and/or an image is printed on a recording medium by the recording head, the volume control unit does not restrain the flexible member from expanding, and the volume of the ink container is maintained at almost the same volume as that at the time when the internal pressure of the ink container is made the positive pressure.