东芝2507提示C411,C411 Fuser unit related service call Thermistor o r heater lamp abnormality at power- ON: Abnormality of the thermistor is detected when power is turned ON o r the temperature of the fuser roller does not rise in a specified period of time until the power is turned on. 苏州东芝维修站电话696l6769,维修,售后服务