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. 12, 2005
Filed:
Jun. 18, 2003
Tatsuhiko Chiba, Kanagawa, JP;
Michihisa Magome, Shizuoka, JP;
Keiji Komoto, Shizuoka, JP;
Kaori Hiratsuka, Shizuoka, JP;
Takeshi Kaburagi, Shizuoka, JP;
Tatsuhiko Chiba, Kanagawa, JP;
Michihisa Magome, Shizuoka, JP;
Keiji Komoto, Shizuoka, JP;
Kaori Hiratsuka, Shizuoka, JP;
Takeshi Kaburagi, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
To provide a method for forming images in which the image bearing member and the toner carrying member are arranged with a gap of 100 μm to 250 μm, and the equation (1) and equation (2) are satisfied. (1) 22≦(the frequency of the alternating current component of the alternating electric field/the peripheral speed of the toner carrying member)×the maximum electric field intensity at the time of developing≦1.20. (2) 8≦(the frequency of the alternating current component of the alternating electric field/the peripheral speed of toner carrying member)×(the fluidity index of Carr/the floodability index of Carr)≦50. According to the method for forming images of the present invention, it is possible to obtain a high quality image without generating fog and light shielding while attaining a uniform halftone with a high image density even over long-term.