发明授权
US07480478B2 Method and apparatus for image forming capable of effectively fixing a toner image on a recording sheet by using induction heating
失效
用于图像形成的方法和装置，其能够通过使用感应加热有效地将调色剂图像定影在记录片材上
- 专利标题： Method and apparatus for image forming capable of effectively fixing a toner image on a recording sheet by using induction heating
- 专利标题（中）： 用于图像形成的方法和装置，其能够通过使用感应加热有效地将调色剂图像定影在记录片材上
-
申请号： US11167845申请日： 2005-06-28
-
公开(公告)号： US07480478B2公开(公告)日： 2009-01-20
- 发明人: Norihiko Aze , Motokazu Hasegawa , Eiji Sawamura , Takayuki Yoshii
- 申请人： Norihiko Aze , Motokazu Hasegawa , Eiji Sawamura , Takayuki Yoshii
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2004-189072 20040628; JP2004-230118 20040806; JP2005-116658 20050414
- 主分类号： G03G15/20
- IPC分类号： G03G15/20 ; H05B6/14
摘要：
An image forming apparatus includes a fixing unit for fixing a toner image on a recording sheet. The fixing unit includes a fixing belt, a support roller, and a coil. The fixing belt rotates and applies heat on the recording sheet to fix the toner image on the recording sheet. The support roller rotates and supports the fixing belt. The coil has a loop-like or U-like shape and generates a magnetic flux to induce heat in the fixing belt and the support roller. The coil sandwiches the support roller and the fixing belt in a manner that the coil faces an outer circumferential surface of the support roller via the fixing belt and an inner circumferential surface of the support roller. The above configuration of the coil controls a surface temperature of the fixing belt.