Patent ID: 6381427
Filing Date: 2002-04-30
Classification: G03G

Abstract:
In a machine having an endless belt or drum that can carry a powder material on a surface of the endless belt or drum, a process for improving cleaning of one of the members of said machine, comprising:driving the endless belt or drum past a transfer station; engaging the endless belt or drum with a transfer roller for turning the transfer roller in a first direction of rotation; electrically biasing the transfer roller to transfer powder material from the surface of the endless belt or drum to a receiver sheet; rotating a cleaning brush having a surface comprising a plurality of fibrous bristles in an opposite direction with respect to the transfer roller to remove residual powder material from the transfer roller; engaging the cleaning brush and the transfer roller by moving the relative location of the axes of rotation of the brush and the roller toward each other, said engagement being greater than a minimal engagement that removes a relatively constant amount of residual powder material from the transfer roller and less than an engagement that slips or stalls the transfer roller.