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:
Nov. 27, 2001
Filed:
Jan. 10, 2000
Applicant:
Inventors:
Mitsuo Shiraishi, Shizuoka-ken, JP;
Toshiyuki Sekiya, Mishima, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/385 ; G01D 1/506 ; G03G 1/501 ;
U.S. Cl.
CPC ...
B41J 2/385 ; G01D 1/506 ; G03G 1/501 ;
Abstract
A sharp image having excellent color balance is formed by preventing differences in the amount of light among recording heads. When forming an image using at least two recording heads, each having transfer thyristors and light-emitting thyristors arranged in the form of an array, by causing the transfer thyristors of M, C and Y recording heads having light-emitting thyristors not to be lit to perform transfer operations as the transfer thyristors of a K recording head having light-emitting thrystors to be lit, the difference in the amount of light among the recording heads is corrected.