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:
Oct. 22, 2013
Filed:
Jan. 14, 2011
Applicants:
Yuusuke Ishizaki, Kanagawa, JP;
Takahisa Koike, Tokyo, JP;
Inventors:
Yuusuke Ishizaki, Kanagawa, JP;
Takahisa Koike, Tokyo, JP;
Assignee:
Ricoh Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B65H 5/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image forming apparatus includes a feed unit, a sensor, a control unit, a measuring unit, and a determining unit. The feed unitconveys a sheet. The sensor detects the sheet being conveyed. The control unit controls to change the force acting on the sheet from that is in normal conveyance of the sheet. The measuring unit measures a measurement value related to conveyance speed of the detected sheet with the acting force changed. The determining unit determines whether there is an indication of abnormality in conveyance of the sheet on the basis of the measurement value.