Electrophotography – Control of electrophotography process – Control of fixing
Patent
1996-05-17
1998-01-13
Brase, Sandra L.
Electrophotography
Control of electrophotography process
Control of fixing
399 70, G03G 1520
Patent
active
057089205
ABSTRACT:
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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Kamei Yukikazu
Ohnishi Hideki
Oikawa Tomohiro
Tateishi Yoshinobu
Brase Sandra L.
Conlin David G.
Grainger Quana
Oliver Milton
Sharp Kabushiki Kaisha
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