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. 27, 2012
Filed:
Jan. 26, 2011
Hiroaki Utagawa, Miyagi, JP;
Munehisa Fuda, Miyagi, JP;
Hiroaki Utagawa, Miyagi, JP;
Munehisa Fuda, Miyagi, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A sheet feeding device includes an air separating unit includes a floating air blowing unit and a separating air blowing unit that blow air to leading edges of a bundle of sheets in a paper feeding direction to float and separate upper sheets, and a side air blowing unit that blows air to both side edges of the sheet bundle to separate each of the sheets in the bundle, an air suctioning unit that suctions the air to suction a top sheet thus separated, a sheet feeding unit that feeds the sheet thus suctioned and retained, and a control unit that controls to blow floating air, to blow separating air, to blow side air, and to suction the air all at different operational timings.