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:
Dec. 13, 2016
Filed:
Dec. 01, 2014
Hayato Fujita, Kanagawa, JP;
Masaaki Ishida, Kanagawa, JP;
Atsufumi Omori, Kanagawa, JP;
Naoto Watanabe, Kanagawa, JP;
Muneaki Iwata, Kanagawa, JP;
Hayato Fujita, Kanagawa, JP;
Masaaki Ishida, Kanagawa, JP;
Atsufumi Omori, Kanagawa, JP;
Naoto Watanabe, Kanagawa, JP;
Muneaki Iwata, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image forming apparatus includes: a light source; and a light source control unit that supplies a pulse drive current according to image data to the light source. An amplitude of a part of the drive current corresponding to a specified pixel of the image data is larger than an amplitude of a part of the drive current corresponding to a normal pixel of the image data that is a pixel other than the specified pixel and the pulse width of the part of the drive current corresponding to the specified pixel is smaller than the pulse width of the part of the drive current corresponding to the normal pixel.