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:
Aug. 29, 2017
Filed:
Oct. 29, 2015
Applicant:
Eiki Yoshimizu, Kanagawa, JP;
Inventor:
Eiki Yoshimizu, Kanagawa, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); H04N 1/00 (2006.01); B65H 7/02 (2006.01); H04N 1/21 (2006.01); B65H 9/00 (2006.01);
U.S. Cl.
CPC ...
H04N 1/00774 (2013.01); B65H 7/02 (2013.01); B65H 9/008 (2013.01); G03G 15/5029 (2013.01); G03G 15/6558 (2013.01); H04N 1/00681 (2013.01); H04N 1/00716 (2013.01); H04N 1/21 (2013.01); B65H 2511/13 (2013.01); B65H 2511/212 (2013.01); B65H 2515/702 (2013.01); B65H 2557/264 (2013.01);
Abstract
A sheet feeder is provided. The sheet feeder includes a roller to feed a sheet, a motor to rotate the roller, and a motor controller to control rotation of the motor by a feedback control. The motor controller detects a condition of the sheet based on a value acquired in the feedback control at the time a load is applied from the sheet to the roller, while performing a stop control to stop the roller at a designated stop position. The stop control is performed after the motor is rotated in a direction opposite to a direction of feed of the sheet.