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:
Feb. 17, 2004
Filed:
Dec. 14, 2001
Applicant:
Inventors:
Ryuichi Okumura, Osaka, JP;
Hironori Ando, Osaka, JP;
Yoshifumi Ishii, Osaka, JP;
Hideo Umezawa, Osaka, JP;
Assignee:
Kyocera Mita Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/47 ;
U.S. Cl.
CPC ...
B41J 2/47 ;
Abstract
In an image forming apparatus having an LED print head according to the present invention, the cycle period of a lighting reference clock signal is variably set according to the tone level of image data so as to variably set the lighting period of an LED according to the tone level of the image data. This makes it possible to provide a linear characteristic relationship between the image data and the tone level of a formed toner image for improvement of an image quality.