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. 06, 2010
Filed:
Dec. 28, 2005
Hideki Ishida, Osaka, JP;
Shingo Yoshida, Osaka, JP;
Hirohito Kondoh, Osaka, JP;
Kyocera Mita Corporation, Osaka, JP;
Abstract
Disclosed is the prevention of the occurrence of uneven image density, as well as the image degradation caused by inhibiting the continuity of image density, produced by the photoreceptor in which uneven electrification exists, and additionally uneven sensitivity coexists, without enlargement of the apparatus as well as increase in the cost. To the exposure amount obtained by the approximate linear transformation of the pixel gradation in each segment multi-divided in the surface of the photoreceptor drum, in all the pixel gradation including 0 level, exposing sourceis controlled to expose with the amount of exposure, offset with only the offset exposure amount Ea which corresponds to the difference between the initial electric potential and the reference initial electric potential Vof the segment. The exposure amount adjustment of the offset exposure amount Ea is conducted by offsetting the exposure time in each pixel.