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:
May. 15, 2012
Filed:
Nov. 23, 2010
Toshiaki Takahashi, Tokyo, JP;
Yoshikuni Ishikawa, Tokyo, JP;
Yu Wakabayashi, Kanagawa-ken, JP;
Manabu Nonaka, Kanagawa-ken, JP;
Toshiaki Takahashi, Tokyo, JP;
Yoshikuni Ishikawa, Tokyo, JP;
Yu Wakabayashi, Kanagawa-ken, JP;
Manabu Nonaka, Kanagawa-ken, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A sheet feeding device includes a sheet carrying unit, an attraction separation device electrostatically attracting and separating an uppermost sheet from a sheet stack and including multiple rollers, an endless dielectric belt stretched over the multiple rollers, and an elastic member provided inside a loop of the belt to cause the endless dielectric belt to contact the uppermost sheet, a sheet conveying device, and a lifting and lowering device. The lifting and lowering device lifts the sheet stack to a lift position at which the uppermost sheet contacts with the attraction separation device, and the attraction separation device stands by for a predetermined time to attract the uppermost sheet and starts to convey the uppermost sheet after the predetermined time elapses in a state in which the sheet stack remains at the lift position.