| 发明名称 |
IMAGE FORMING APPARATUS |
| 摘要 |
An image forming apparatus includes a fixing portion for heating and fixing an unfixed image formed on a recording material, the fixing portion including a cylindrical film, a heater provided in a cylindrical shape of the film, a switch portion actuatable by heat from the heater, and a protection element for shutting off electric power supplied to the heater; a DC voltage source for generating a DC voltage from commercial AC voltage source, wherein the protection element is disposed in the shape of cylinder of the film is connected in a DC circuit operable by the DC voltage source, and wherein when the switch portion is rendered off, the electric power supply to the heater is shut off. |
| 申请公布号 |
US2015139672(A1) |
申请公布日期 |
2015.05.21 |
| 申请号 |
US201414541657 |
申请日期 |
2014.11.14 |
| 申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
Nakashima Yusuke;Yamaguchi Atsuhiko |
| 分类号 |
G03G15/20 |
主分类号 |
G03G15/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An image forming apparatus comprising:
a fixing portion for heating and fixing an unfixed image formed on a recording material, said fixing portion including a cylindrical film, a heater provided in a cylindrical shape of said film, a switch portion actuatable by heat from said heater, and a protection element for shutting off electric power supplied to said heater; a DC voltage source for generating a DC voltage from commercial AC voltage source; wherein said protection element is disposed in the shape of cylinder of said film is connected in a DC circuit operable by said DC voltage source, and wherein when said switch portion is rendered off, the electric power supply to said heater is shut off. |
| 地址 |
Tokyo JP |
