Patent ID: 7609992
Filing Date: 2009-10-27
Classification: G03G

Abstract:
1. An image forming apparatus comprising: at least one photoconductor on which a developer image is formed; a transfer belt for transferring the developer image formed on the photoconductor to an image receiving medium, the transfer belt being rotatably supported by a driving roller and a driven roller; a belt cleaning member for cleaning used developer from the transfer belt after the developer image is transferred, the belt cleaning member selectively contacting the transfer belt; and a first pollution control unit for preventing used developer on the belt cleaning member from moving to the transfer belt by electrical forces when the transfer belt passes by the belt cleaning member separated from the transfer belt, the first pollution control unit being disposed to the driven roller; wherein the driving roller comprises: a second conductive roller formed of metal; and a conductive rubber layer including a conductive substance formed on the second conductive roller, the conductive rubber layer being grounded by a first ground.