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:
Apr. 02, 2013
Filed:
Sep. 02, 2011
Izumi Kinoshita, Hyogo, JP;
Kunihiro Komai, Osaka, JP;
Tatsuya Miyadera, Osaka, JP;
Yoshinori Shirasaki, Osaka, JP;
Takuhei Yokoyama, Osaka, JP;
Takeshi Shikama, Osaka, JP;
Akinori Yamaguchi, Kanagawa, JP;
Izumi Kinoshita, Hyogo, JP;
Kunihiro Komai, Osaka, JP;
Tatsuya Miyadera, Osaka, JP;
Yoshinori Shirasaki, Osaka, JP;
Takuhei Yokoyama, Osaka, JP;
Takeshi Shikama, Osaka, JP;
Akinori Yamaguchi, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A pixel information acquiring unit acquires multilevel pixel information in which one pixel is expressed in multilevel scales. A line pixel information storing unit stores the multilevel pixel information for each main scanning line. A light emission control unit optically exposes a photosensitive element by controlling a binary light source on the basis of the multilevel pixel information. The photosensitive element is exposed to the binary light source with a period corresponding to N-fold in a sub scanning direction resolution of the multilevel pixel information, wherein N is a positive integer, so that the N times exposures corresponds to an exposure for one pixel in an original resolution. The switch on/off statuses of the binary light source are controlled in the N times exposures for each pixel, on the basis of lighting rate information for converting the multilevel scales into a lighting rate in the N times exposures.