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. 16, 2008
Filed:
Jun. 24, 2004
Yasumasa Morimoto, Kashihara, JP;
Yoshiyuki Nishizato, Nara, JP;
Masato Tamehira, Nara, JP;
Syoutaro Okamoto, Nara, JP;
Yoshiyuki Nagai, Yamatokoriyama, JP;
Yasumasa Morimoto, Kashihara, JP;
Yoshiyuki Nishizato, Nara, JP;
Masato Tamehira, Nara, JP;
Syoutaro Okamoto, Nara, JP;
Yoshiyuki Nagai, Yamatokoriyama, JP;
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Abstract
A sheet feeder device is provided with a pick-up roller driving section which is operative to position the pick-up roller into a retracted position spaced a predetermined distance apart from a stack of document sheets on a document tray before and after the operation for feeding the series of document sheets, into a sheet feed position in which the pick-up roller abuts against the stack of document sheets for feeding the document sheets at an occasion of feeding of each of the document sheets in the operation for feeding the series of document sheets, and into the standby position above and close to the height of a stack of a maximum load number of document sheets carried on the document tray during a period from a point in time just after feeding of one sheet to a point in time just before feeding of a succeeding sheet.