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. 31, 2013
Filed:
Apr. 02, 2013
Yoshiki Katayama, Tokorozawa, JP;
Hitoshi Asano, Toyokawa, JP;
Masayuki Watanabe, Fuchu, JP;
Yukinobu Iguchi, Hamamatsu, JP;
Takashi Watanabe, Toyokawa, JP;
Masahiro Nonoyama, Toyokawa, JP;
Yoshiki Katayama, Tokorozawa, JP;
Hitoshi Asano, Toyokawa, JP;
Masayuki Watanabe, Fuchu, JP;
Yukinobu Iguchi, Hamamatsu, JP;
Takashi Watanabe, Toyokawa, JP;
Masahiro Nonoyama, Toyokawa, JP;
Konica Minolta Business Technologies, Inc., Chiyoda-Ku, Tokyo, JP;
Abstract
A document feeder feeds document sheets one by one from a stack on a tray by pressing one or more pick-up rollers against an uppermost document sheet and guiding one widthwise edge of the document sheet. The width direction is perpendicular to a document transport direction. The document feeder includes: a document size obtainer that obtains size information indicating a width of the document sheet; and a center-of-contact shifting mechanism that shifts a center of contact of each pick-up roller along an axial direction of the pick-up roller according to the obtained size information. The center of contact is a central point of an area where the pick-up roller is in contact with the document sheet. Each pick-up roller is in a barrel shape. The center-of-contact shifting mechanism shifts the center of contact of each pick-up roller by axially tilting the pick-up roller relative to the document surface.