Title:
定着装置及び画像形成装置
Document Type and Number:
Japanese Patent JP4439885
Kind Code:
B2
Abstract:
It is an object of the present invention to provide a fixing apparatus with which the movement of heat to the fixing belt during warm-up is suppressed, and the time it takes for the heating roller temperature to rise can be shortened, by reducing the contact surface area between the fixing belt and the heating roller, and an image formation apparatus that makes use of this fixing apparatus, and a toner used therein. A separation member provided on the inside of the fixing belt forms a pair with a tension roller, and a switching device for switching the positions thereof switches the positions when a set temperature is detected by temperature sensing device installed on the heating roller, so that the contact surface area of the fixing belt on the heating roller is different during warm-up and during fixing.
Inventors:
Masahiko Sato
Takeshi Omura
Naoki Iwatani
Shinshi Akira
Takeshi Omura
Naoki Iwatani
Shinshi Akira
Application Number:
JP2003393315A
Publication Date:
March 24, 2010
Filing Date:
November 25, 2003
Export Citation:
Assignee:
株式会社リコー
International Classes:
G03G9/08; G03G15/20; G03G9/087
Domestic Patent References:
| JP10293497A | ||||
| JP2003122179A | ||||
| JP2003015457A | ||||
| JP2002295452A | ||||
| JP2003167382A |
Attorney, Agent or Firm:
Yuuki Okuyama