Patent ID: 9612566
Date: 2017-04-04
CPC Classifications: G03G

Claim:
1. An image forming apparatus comprising: an image holding member in which a toner image is held; a transfer member configured to transfer the toner image to a transfer material; a cleaning unit configured to remove waste toner remaining on the image holding member; a waste toner receiving member configured to receive the waste toner removed by the cleaning unit; and a full state detection unit comprising a waste toner amount detection unit disposed in the waste toner receiving member to detect an amount of waste toner and configured to detect whether the waste toner is fully filled in the waste toner receiving member by using the waste toner amount detection unit, wherein the waste toner amount detection unit is movable in a buried state in which the waste toner amount detection unit is positioned under a surface of the waste toner received in the waste toner receiving member, in a non-buried state in which the waste toner amount detection unit is positioned above the surface of the waste toner, and in a loaded state in which the waste toner amount detection unit contacts the surface of the waste toner, and the full state detection unit detects whether the waste toner is fully filled in the waste toner receiving member when the waste toner amount detection unit is positioned in the loaded state switched from the non-buried state.