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:
May. 19, 2009
Filed:
Jul. 25, 2006
Kazumasa Takada, Shizuoka-ken, JP;
Hidenori Kobayashi, Shizuoka-ken, JP;
Shunichi Ono, Shizuoka-ken, JP;
Kazumasa Takada, Shizuoka-ken, JP;
Hidenori Kobayashi, Shizuoka-ken, JP;
Shunichi Ono, Shizuoka-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus of the invention includes plural photoconductive bodies for forming a color image, an exposure unit to scan a laser light in a main scanning direction of each of the plural photoconductive bodies and to perform exposure, and a light amount correction unit to create, for each of the plural photoconductive bodies, light amount correction data for correcting a light amount of the laser light outputted form the exposure unit so that a light receiving sensitivity of each of the plural photoconductive bodies in the main scanning direction becomes uniform, and the light amount correction unit includes a first storage unit to store reference correction data, a second storage unit to store reference correction data, a second the reference correction data is made an absolute amount, by a relative amount correspondingly to each of the plural photoconductive bodies, and a combining unit to combine the reference correction data and the relative correction data to create the light amount correction data.