Switching mode power supply having overvoltage cut-off function image forming apparatus and method for overvoltage cut-off by using the same

摘要

When an overvoltage greater than the rated voltage of the switching mode power supply is supplied to the switching mode power supply, an image to prevent breakage of the switching mode power supply and the image forming apparatus internal circuit The present invention relates to a switching mode power supply for use in an image forming apparatus and an overvoltage blocking method and an image forming apparatus using the same.