Patent ID: 6097904
Filing Date: 2000-08-01
Classification: G03G

Abstract:
An energization control apparatus comprising:fixing means having a heater for using heat to fix a transferred toner image to a recording sheet;temperature detection means, having an impedance which varies in consonance with a temperature, for detecting a temperature of said fixing means;selection means for alternately selecting a first resistor having a first impedance and a second resistor having a second impedance for connection to said temperature detection means; andabnormality detection means for, when said first resistor is connected to said temperature detection means by said selection means, comparing a value, which is determined from said first resistor and an impedance of said temperature detection means, with a predetermined value to detect a malfunction of said temperature detection means, and for, when said second resistor is connected to said temperature detection means by said selection means, comparing a value, which is determined from said second resistor and said impedance of said temperature detection means, with said predetermined value to detect a malfunction of said fixing means.