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:
Aug. 25, 2009
Filed:
Feb. 11, 2008
Applicants:
Tomomitsu Oohara, Atsugi, JP;
Yukihiro Terada, Atsugi, JP;
Inventors:
Tomomitsu Oohara, Atsugi, JP;
Yukihiro Terada, Atsugi, JP;
Assignee:
Mitsumi Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/355 (2006.01);
U.S. Cl.
CPC ...
Abstract
A thermal head drive circuit drives M number of thermal heads for printing one line and includes a delay unit that applies different time delays to M bits of print data to be supplied to the corresponding M thermal heads. The higher order the odd number thermal heads of the M thermal heads are, the greater are the time delays applied to the corresponding bits of the print data, while the higher order the even number thermal heads of the M thermal heads are, the less are the time delays applied to the corresponding bits of the print data.