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:
Aug. 08, 2006
Katsuya Hiraga, Chiba, JP;
Yukihiko Shimizu, Chiba, JP;
Katsuya Hiraga, Chiba, JP;
Yukihiko Shimizu, Chiba, JP;
Futaba Corporation, Chiba, JP;
Abstract
A print head driving method controls a gradation of a print head employing an array light source of a lower resolution and an array light source of a higher resolution based on image data represented by 2bits, wherein n is zero or a positive integer, and both of the array light sources are gradation-controlled by combining a pulse weight-application method and a pulse accumulation method. Further, a image formation apparatus controls a gradation of a print head employing an array light source of a lower resolution and an array light source of a higher resolution based on image data represented by 2bits, wherein n is 0 or a positive integer, and both of the array light sources are controlled by a gradation control method employing a simple combination of a pulse weight-application method and a pulse accumulation method.