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:
Oct. 25, 2011
Filed:
Mar. 09, 2007
Hideaki Yasunaga, Ibaraki, JP;
Hiroaki Kato, Nagaokakyo, JP;
Masayuki Hagi, Minoo, JP;
Katsunori Kurose, Takarazuka, JP;
Yoshihiro Mikuriya, Nishinomiya, JP;
Yoshimichi Ishikawa, Itami, JP;
Atsushi Yamamoto, Kawanishi, JP;
Takuya Kadota, Kobe, JP;
Hideaki Yasunaga, Ibaraki, JP;
Hiroaki Kato, Nagaokakyo, JP;
Masayuki Hagi, Minoo, JP;
Katsunori Kurose, Takarazuka, JP;
Yoshihiro Mikuriya, Nishinomiya, JP;
Yoshimichi Ishikawa, Itami, JP;
Atsushi Yamamoto, Kawanishi, JP;
Takuya Kadota, Kobe, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
To provide a pulverized toner excellent in the releasing ability and cleaning ability, and an image-forming apparatus for one-component developer, and a process cartridge using the pulverized toner. The pulverized toner contains a toner base particle containing at least a binder resin, a colorant, and a releasing agent, the mass ratio of the releasing agent to the binder resin is 3.0% to 6.0%, the adhesive force among the pulverized toners at 25° C. to 55° C. is 20 g to 80 g, and the pulverized toner is used for the image-forming apparatus for one-component developer containing the cleaning unit configured to dispose an elastic blade adjacent to the surface of the image bearing member so as to clean the surface.