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:
Mar. 04, 2014
Filed:
Aug. 31, 2012
Atsushi Miwa, Tokyo, JP;
Atsushi Miwa, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes an apparatus body, a recording head, head tanks, main tanks, liquid feed pumps, a first driving source, a drive control unit, and a drive switching assembly. The drive switching assembly includes a second driving source, a cam, a slider member, a switching gear, switching position detected portions, and a detector. The detected portions are disposed at the cam so as to correspond to switching positions of the liquid feed pumps. One of the detected portions has a greater width in a rotation direction of the cam than any other detected portion. When a time from when the detector detects one of the detected portions to when the detector detects another one of the detected portions is shorter than a threshold value, the drive control unit determines, as a home position, a position of the cam on detection of the another one with the detector.