A waste toner collecting apparatus using a disposable OPC drum utilizes an inside
space of the disposable OPC drum as a waste toner container to collect waste toner.
The waste toner collecting apparatus comprises a waste toner removing unit contacting
one side of the OPC drum to remove the waste toner from the OPC drum, first transport
unit transporting the waste toner, which is removed by the waste toner removing
unit from the OPC drum, in one direction, a second transport unit transporting
waste toner, which is transported by the first transport unit, to one side of a
storage unit, and a screw member moving the waste toner, which is moved to one
side of the storage unit, to the other side of the storage unit to store the waste
toner within the storage unit from the one side to the other side without leaving
an unused hollow space. A user can conveniently remove the waste toner by replacing
only the OPC drum instead of individually replacing the OPC drum and the waste
toner container.