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. 27, 2006
Filed:
Jan. 07, 2004
Shuntaro Watanabe, Shizuoka, JP;
Yushi Mikuriya, Shizuoka, JP;
Takeshi Yamamoto, Kanagawa, JP;
Shinya Yachi, Shizouka, JP;
Katsuyuki Nonaka, Ibaraki, JP;
Shuntaro Watanabe, Shizuoka, JP;
Yushi Mikuriya, Shizuoka, JP;
Takeshi Yamamoto, Kanagawa, JP;
Shinya Yachi, Shizouka, JP;
Katsuyuki Nonaka, Ibaraki, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
To provide an method for forming an image capable of effectively suppressing a toner from deteriorating and also capable of keeping the quality of an image for a long period of time, even when the method is applied to an apparatus with as high process speed. The prevent invention provides an method for forming an image, in which a developing unit is used, which includes: a rotatable cylindrical toner bearing member having a diameter represented as Rd (mm); and a rotatable cylindrical toner-supplying member having a diameter Rs (mm), the diameters Rd and Rs satisfying the following relational expression ():1≦Rs−Rd≦10  (1) and in which the nonmagnetic one-component toner having an degree of aggregation of 5 to 30% and an electric resistivity of 1×10to 1×10Ω·cm at an electric field of 1×10V/cm is used.