Patent ID: 8424220
Filing Date: 2013-04-23
Classification: D06F

Abstract:
1. A method for controlling a dryer, comprising: pre-heating an inside of a drum, comprising initiating operation of a heater of a steam generator, and thereafter initiating operation of a hot air heater in a pre-heating mode, and supplying hot air generated by the hot air heater to the drum for a predetermined drum heating period as the heater of the steam generator heats water received in the steam generator; supplying steam generated by the steam generator into the drum when the water received in the steam generator reaches a predetermined steam temperature; and operating the hot air heater in a drying mode and supplying hot air generated by the hot air heater into the drum, wherein the heater of the steam generator is operated while the hot air heater is operated in the pre-heating mode to pre-heat the inside of the drum, and wherein initiating operation of the hot air heater in the pre-heating mode comprises operating the hot air heater at a predetermined power level that is lower than a rated power level of the hot air heater.