发明名称 A fixing device having a fixing temperature switching mechanism, method for controlling temperature of the fixing device and image forming apparatus having the fixing device
摘要 A microcomputer control section (76) is such that, when switching is mode from a pain sheet mode to a sheetboard/OHP mode by the operation of a corresponding keys (43) on an operation panel (40), the microcomputer control section changes the control temperature of an upper roller (81) to an equivalent bit value so as to vary that control temperature from 150 DEG C to 160 DEG C during which time the microcomputer control section, confirming the surface temperature of an upper roller (81) from a detection signal of a sensing section (73) through an A/D conversion section (77), turns an upper lamp heater (71) ON through a lamp control section (75) if the surface temperature of the upper roller is below 155 DEG C and, effecting continued confirmation of the surface temperature of the upper roller (81) from the detection signal of the sensing section (73) through the A/D conversion section (77), turns the upper lamp heater (71) OFF through the lamp control section (75) when the surface temperature of the upper roller (81) increases above 160 DEG C, so that a sheetboard/OHP sheet-ready (copyable) state is displayed on a liquid-crystal display section (42) on an operation panel (40). <IMAGE>
申请公布号 EP0869405(A3) 申请公布日期 2000.05.03
申请号 EP19980105027 申请日期 1998.03.19
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 YAMAUCHI, SHIN
分类号 F16C13/00;G03G15/20;H05B3/00 主分类号 F16C13/00
代理机构 代理人
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