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:
Dec. 04, 2012
Filed:
Aug. 30, 2011
Applicants:
Satoru Hayama, Osaka, JP;
Chikashi Kajikawa, Osaka, JP;
Inventors:
Satoru Hayama, Osaka, JP;
Chikashi Kajikawa, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image forming apparatus in accordance with the present invention includes a vibration sensor that transmits a detection signal in response to a vibration pattern and a sheet feeder cassette unit that stores recording papers, is opened/closed by extraction/insertion, and generates a specific vibration pattern while being opened or closed. The image forming apparatus includes an open/close detector unit that detects an opened/closed state of the sheet feeder cassette unit when detecting a predetermined vibration pattern based on the detection signal of the vibration sensor.