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:
Jun. 01, 2010
Filed:
Jun. 29, 2007
Hideo Isohara, Hachioji, JP;
Tetsu Sekine, Sagamihara, JP;
Yoshiki Katayama, Hachioji, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
There is described a paper sheet conveyance apparatus and an image forming apparatus, which makes it possible not only to achieve the minimization and the cost reduction of the apparatus; but also to achieve the high-speed conveyance operation of the paper sheet without generating any step out of the stepping motor. The paper sheet conveyance apparatus, includes: a pair of conveyance rollers to convey a paper sheet; and a stepping motor to drive one of the pair of conveyance rollers. At least one of the conveyance rollers is a roller made of aluminum alloy metal. Further, the roller made of the aluminum alloy metal is shaped in a hallow cylinder. Still further, a surface hardening treatment is applied to a circumferential surface of the roller made of the aluminum alloy metal.