发明名称 |
Toner-image fixing device with roller-temperature limitation |
摘要 |
A toner image fixing device realizes a stabilized fixing process by smoothly controlling a surface temperature of its heating roller, preventing peeling-off of a layer of the roller core. The toner image fixing device comprises a heating roller consisting of a core covered with a layer of, e.g., a silicon rubber, a heat lamp mounted in the heating roller and a pressure roller for pressing a sheet of paper against the heating roller. The toner image fixing device is provided with a temperature sensor for sensing a surface temperature of the heat roller and for operating the heater lamp at a preset ON-OFF ratio (e.g., 1:3) to elevate the heating roller surface temperature from a first preset value to a second preset value and thereafter to maintain it at the second preset temperature.
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申请公布号 |
US5708920(A) |
申请公布日期 |
1998.01.13 |
申请号 |
US19960649519 |
申请日期 |
1996.05.17 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
OHNISHI, HIDEKI;KAMEI, YUKIKAZU;OIKAWA, TOMOHIRO;TATEISHI, YOSHINOBU |
分类号 |
G03G15/20;(IPC1-7):G03G15/20 |
主分类号 |
G03G15/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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