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. 12, 2010
Filed:
Dec. 30, 2004
Junji Kobayashi, Ibaraki, JP;
Shigenori Yaguchi, Ibaraki, JP;
Tomonari Hokkyo, Ibaraki, JP;
Hirobumi Ouchi, Ibaraki, JP;
Junji Kobayashi, Ibaraki, JP;
Shigenori Yaguchi, Ibaraki, JP;
Tomonari Hokkyo, Ibaraki, JP;
Hirobumi Ouchi, Ibaraki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner for electrophotography containing at least a fixing resin, a coloring agent and a wax is a toner containing rice wax and carnauba wax as the wax constitutional component thereof. A cleaning unit employs the blade cleaning mode; and for the purposes of keeping the performance of the cleaning unit and preventing the generation of printing failure. The toner has a relationship between a charge amount X (i.e., an absolute value of charge amount of the toner, μC/g) and a deposition amount Y (mg/cm) satisfied with the following expression (1) or (2):X≦21   (1)>21 and≦−0.0329+1.6223   (2)