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:
Dec. 20, 2011
Filed:
Dec. 07, 2009
Hiroyuki Kozuru, Yamanashi, JP;
Yoshiyasu Matsumoto, Tokyo, JP;
Kosuke Nakamura, Tokyo, JP;
Futoshi Kadonome, Tokyo, JP;
Takanari Kayamori, Kanagawa, JP;
Hiroyuki Kozuru, Yamanashi, JP;
Yoshiyasu Matsumoto, Tokyo, JP;
Kosuke Nakamura, Tokyo, JP;
Futoshi Kadonome, Tokyo, JP;
Takanari Kayamori, Kanagawa, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
Disclosed is toner in which is used in an image formation process comprising the steps of transferring an image of toner formed on a photoreceptor onto a recording sheet, and removing any residual toner remaining on any of the photoreceptor, an intermediate transfer member and a secondary transfer member with a cleaning blade, the toner containing at least toner particles (A) and small particles (B), wherein the toner particles (A) have an average circularity of from 0.93 to 0.99 and a number-based median diameter (D) of from 3.0 to 8.0 μm, the small particles (B) have an average circularity of from 0.70 to 0.92 and a number-based median diameter (D) of from 0.15 to 0.60 times that of the toner particles (A), and the surface energy of the toner particles (A) is different from that of the small particles (B).