| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus having resistance against external troubles and for transmitting a detection signal of the temperature of a fixing device to a controlling unit without being influenced by noise. SOLUTION: When an RF-ID (radio frequency identification) reader asks about temperature upon preheating or fixing in a fixing device, an RF-ID element 23 transmits a digital value as reply electric waves corresponding to the temperature of a thermistor 21 output by an A/D converter 22 through an antenna to the RF-ID reader. Meanwhile, a temperature control unit of the fixing device performs control to hold the temperature of a heat roller 24, which is received by the RF-ID reader, to the preheating temperature or the fixing temperature by stopping the power distribution to a halogen lamp 26 when the temperature exceeds the aimed temperature and by restarting the power distribution when the temperature becomes lower than the aimed temperature. COPYRIGHT: (C)2010,JPO&INPIT
|
