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. 19, 2002
Filed:
Sep. 22, 2000
Masakazu Kinoshita, Kato, JP;
Takashi Yamamoto, Kawasaki, JP;
Masae Nakamura, Kawasaki, JP;
Yoshimichi Katagiri, Kawasaki, JP;
Shin-ichi Kuramoto, Numazu, JP;
Hachiro Tosaka, Shizuoka, JP;
Hiroshi Yamashita, Numazu, JP;
Osamu Uchinokura, Shizuoka, JP;
Kazuhiko Hamazoe, Kato, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a method for forming a color image by using a contact type nonmagnetic one-component developing device, a flat sheet-like blade made of a metal flexible member and having a distal end thereof chamfered is used inside the developing device in combination with a toner having a glass transition point of 55 to 70° C. and a weight average particle diameter of 6.0 to 10.0 &mgr;m, and containing up to 20 number % of particles having particle diameters of 5 &mgr;m or below, as a developer. The developing device is simple in construction, can provide high image quality and can, moreover, provide a highly reliable image formation method.