METHOD OF DETECTING WASTE TONER IN A CONTAINER OF AN IMAGE FORMING APPARATUS

摘要

Waste toner is detected in a container of an image forming apparatus. An auger is provided within the container. A switch is provided which is operable depending upon a torque associated with operation of the auger. A frequency of activation of the switch is detected. A "not full", "near full" and "full" condition of the waste toner in the container is determined depending upon the frequency of activation of the switch.