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:
Sep. 07, 2010
Filed:
Jan. 31, 2007
Kazumi Suzuki, Shizuoka, JP;
Hiromitsu Takagaki, Kanagawa, JP;
Takashi Fujita, Kanagawa, JP;
Atsushi Nakafuji, Tokyo, JP;
Hiromi Tamura, Kanagawa, JP;
Shin Kayahara, Kanagawa, JP;
Tsuyoshi Sugimoto, Kanagawa, JP;
Takashi Seto, Kanagawa, JP;
Katsuaki Miyawaki, Kanagawa, JP;
Kazumi Suzuki, Shizuoka, JP;
Hiromitsu Takagaki, Kanagawa, JP;
Takashi Fujita, Kanagawa, JP;
Atsushi Nakafuji, Tokyo, JP;
Hiromi Tamura, Kanagawa, JP;
Shin Kayahara, Kanagawa, JP;
Tsuyoshi Sugimoto, Kanagawa, JP;
Takashi Seto, Kanagawa, JP;
Katsuaki Miyawaki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A process includes developing toner images on a photoconductor, transferring to an intermediate transfer belt and a transferring-and-fixing roller. The toner images are transferred to and fixed to a paper simultaneously while the paper moves between the transferring-and-fixing roller and a pressure roller which is pressed against the transferring-and-fixing roller. After transfer process to the paper, residual toner particles remaining on the transferring-and-fixing roller are removed by a cleaning roller. In order to achieve a cleanability from the transferring-and-fixing roller and prevent the intermediate belt from becoming too high temperature, the elastic modulus of the toner particles measured when the toner particles are heated is greater than the elastic modulus of the toner particles when cooled in a temperature range where the glass transition temperature and 10° C. lower than the melting temperature of the toner particles.