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:
Aug. 04, 2009
Filed:
May. 26, 2005
Shigenori Yaguchi, Ibaraki, JP;
Junji Kobayashi, Ibaraki, JP;
Hirobumi Ouchi, Ibaraki, JP;
Tomonari Hokkyo, Ibaraki, JP;
Shigenori Yaguchi, Ibaraki, JP;
Junji Kobayashi, Ibaraki, JP;
Hirobumi Ouchi, Ibaraki, JP;
Tomonari Hokkyo, Ibaraki, JP;
Ricoh Printing Systems, Ltd., Tokyo, JP;
Abstract
In the image forming apparatus by: visualizing an electrostatic latent image formed on an electrostatic charge carrying member; transferring a toner image, which is thus visualized, to a recording medium, or to a recording medium through an intermediate transfer material; and fixing the toner image, which is thus transferred to the recording medium, to obtain a recorded image, the toner includes at least a fixing resin, a colorant, a releasing agent, and an external additive, the toner has an average particle diameter in a range of from 4 to 12 μm and including no particle having a diameter of 45 μm or more, a ratio of a toner adhesion amount in a character part to a toner adhesion amount in a solid image part upon printing is more than 0.5 and less than 4, and the toner adhesion amount in a character part is 1.6 mg/cmor less.