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. 18, 2008
Filed:
Nov. 26, 2003
Applicant:
Muneharu Itoh, Tokyo, JP;
Inventor:
Muneharu Itoh, Tokyo, JP;
Assignee:
Zeon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/093 (2006.01);
U.S. Cl.
CPC ...
Abstract
A toner for an image-forming apparatus and method which apparatus has a cleaning means with a cleaning blade to remove a residual toner remaining on a surface of a photoconductive member after transfer; the toner being a mixture of a colored polymer particle and an external additive. The colored polymer particle has an average circle degree in the range of 0.95-0.995 and a volume average particle diameter in the range of 3-8 μm. The toner has an absolute value of charge amount in the range of 20-70 μC/g in a toner layer formed on a developing roll when the toner is used with the image-forming apparatus.