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:
Jun. 06, 2006
Filed:
Jul. 13, 2001
Takayuki Ogasahara, Kanagawa, JP;
Hiroshi Tajika, Kanagawa, JP;
Miyuki Fujita, Tokyo, JP;
Yuji Konno, Kanagawa, JP;
Norihiro Kawatoko, Kanagawa, JP;
Tetsuya Edamura, Kanagawa, JP;
Tetsuhiro Maeda, Kanagawa, JP;
Atsuhiko Masuyama, Kanagawa, JP;
Takayuki Ogasahara, Kanagawa, JP;
Hiroshi Tajika, Kanagawa, JP;
Miyuki Fujita, Tokyo, JP;
Yuji Konno, Kanagawa, JP;
Norihiro Kawatoko, Kanagawa, JP;
Tetsuya Edamura, Kanagawa, JP;
Tetsuhiro Maeda, Kanagawa, JP;
Atsuhiko Masuyama, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention reduces the granularity of the dots for the entire density range by optimally setting formation amounts of a low-density dot and of a high-density dot per unit area. For this purpose, the formation amounts of the low-density dot and of the high-density dot in accordance with the density level are determined in such a way that as the density level rises, the formation amount of the low-density dot is gradually increased up to a first peak amount (200%) and, after reaching the first peak, gradually decreased, and in a range of density levels higher than a predetermined density level at which the low-density dot is formed to a specified amount (200%), as the density level rises, the formation amount of the high-density dot is gradually increased up to a second peak amount (100%) smaller than the first peak amount.