WASTE TONER QUANTITY DETECTING APPARATUS OF IMAGE FORMING APPARATUS AND METHOD, AND IMAGE FORMING APPARATUS EMPLOYING THE SAME

摘要

Ogre (auger) waste toner in the waste toner box using the current changes in the motor which drives the filled if you wear waste toner amount of the image forming apparatus of the structure to detect whether or not the detection device and method employing the image forming apparatus is disclosed . ; this waste toner amount of the image forming apparatus disclosed motor current detecting device detecting unit for detecting the drive current of the motor that drives the rotation of the Ogre evenly distribution of the waste toner accommodated in the waste toner ; And , using the difference between the second current value corresponding to the driving current value of the motor in the first current value and the current time point corresponding to the minimum driving current value of the driving current value of the motor , the waste toner in the waste toner box a control unit having a judgment to determine whether or not full or not .