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.

Date of Patent:
Dec. 24, 2013

Filed:

Jul. 27, 2009
Applicants:

Motoya Sano, Zama, JP;

Takashi Fujii, Yokohama, JP;

Hiroshi Kubo, Kawasaki, JP;

Shinya Kitaoka, Kawasaki, JP;

Takeshi Akai, Yokohama, JP;

Atsushi Kanaya, Yokohama, JP;

Shingo Matsushita, Tokyo, JP;

Norio Kimura, Sagamihara, JP;

Kenichiro Morita, Ebina, JP;

Inventors:

Motoya Sano, Zama, JP;

Takashi Fujii, Yokohama, JP;

Hiroshi Kubo, Kawasaki, JP;

Shinya Kitaoka, Kawasaki, JP;

Takeshi Akai, Yokohama, JP;

Atsushi Kanaya, Yokohama, JP;

Shingo Matsushita, Tokyo, JP;

Norio Kimura, Sagamihara, JP;

Kenichiro Morita, Ebina, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/04 (2006.01); H04N 1/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

In an image reader, a reading member fixedly mounted in the image reader reads an image on a sheet conveyed into the image reader. A guide is disposed opposite the reading member to support the sheet with respect to the reading member. A guide moving member moves the guide with respect to the reading member in a main scanning direction in which the reading member reads the image on the sheet. A guide rotating member rotates the guide in a sub-scanning direction perpendicular to the main scanning direction. A controller controls the reading member to scan different positions on the guide moved by the guide moving member and rotated by the guide rotating member to generate shading data.


Find Patent Forward Citations

Loading…