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:
Mar. 11, 2008
Filed:
Jan. 21, 2004
Nobuyuki Ito, Shizuoka, JP;
Takeshi Ikeda, Shizuoka, JP;
Yukio Nagase, Shizuoka, JP;
Isami Itoh, Shizuoka, JP;
Yasukazu Ayaki, Kanagawa, JP;
Tomohito Ishida, Shizuoka, JP;
Nobuyuki Ito, Shizuoka, JP;
Takeshi Ikeda, Shizuoka, JP;
Yukio Nagase, Shizuoka, JP;
Isami Itoh, Shizuoka, JP;
Yasukazu Ayaki, Kanagawa, JP;
Tomohito Ishida, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The image forming apparatus has an image forming portion capable of forming an image on a transferring medium by the use of a hypochromatic toner and a hyperchromatic toner of substantially the same color. The image forming portion is provided with a developing device for developing with the hypochromatic toner and the hyperchromatic toner, wherein, in an image area in which the hyperchromatic toner and the hypochromatic toner are mixedly present, the recording rate of the hyperchromatic toner is 1/16, the minimum size Wmini of a toner image of the hyperchromatic toner is 50 μm or less on the transferring medium. Thereby, it is achieved to reduce graininess.