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. 10, 2020
Filed:
Jun. 05, 2018
Hiromichi Matsuda, Kanagawa, JP;
Katsuaki Miyawaki, Kanagawa, JP;
Jun Yamane, Kanagawa, JP;
Hideyuki Takayama, Kanagawa, JP;
Hiromichi Matsuda, Kanagawa, JP;
Katsuaki Miyawaki, Kanagawa, JP;
Jun Yamane, Kanagawa, JP;
Hideyuki Takayama, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A sheet conveying device, which is included in an image forming apparatus, includes a detector to detect a lateral end face of a sheet, a first pair of rollers to hold and convey the sheet and swing in a direction parallel to a plane of the sheet, a second pair of rollers to convey the sheet together with the first pair of rollers, and a controller to rotate the first pair of rollers to multiple angles, detect time changes at each angle at the lateral end face while conveying the sheet, and determine a home position corresponding to a position where respective rates of the time changes of the sheet at the first and second nip regions are substantially identical to each other or a home position having a least difference of rates of the time changes of the sheet at the first and second nip regions.