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:
Oct. 28, 2008
Filed:
Jul. 30, 2004
Hiroyuki Seki, Tokai, JP;
Shunichi Oohara, Ushiku, JP;
Yoshiaki Yamauchi, Minori, JP;
Takamitsu Ikematsu, Tokai, JP;
Kazuo Kikuchi, Hitachi, JP;
Seiji Okunomiya, Hitachinaka, JP;
Hiroyuki Seki, Tokai, JP;
Shunichi Oohara, Ushiku, JP;
Yoshiaki Yamauchi, Minori, JP;
Takamitsu Ikematsu, Tokai, JP;
Kazuo Kikuchi, Hitachi, JP;
Seiji Okunomiya, Hitachinaka, JP;
Ricoh Printing Systems, Ltd., Tokyo, JP;
Abstract
A paper feeder is capable of minimizing abnormal noise produced at a separation pad during paper feed, without reducing the paper feed capability, for use in an image forming apparatus using the same. Buffers are mounted on the separation pad. This arrangement ensures that, when a stick-slip condition occurs between the paper and separation pad during paper feed, and the separation pad is vibrated by the paper, the buffer vibrates so as to dissipate the vibration energy of the separation pad, with the result that the vibration of the separation pad is minimized, thereby to reduce any abnormal noise.