Brushes prestress for double brushes purely strength without preliminary cleaning corona for triboelectrically - negative toner

摘要

An apparatus and method for cleaning triboelectric negative toner particles from the photoreceptor surface without the need of a preclean corotron. To remove the residual particles, a first cleaning brush, in the direction of motion of the photoreceptor, is negatively biased to remove the positive (+) toner and charge the toner particles negative. Then, the second brush, in the direction of motion of the photoreceptor, is positively biased to remove the residual negative toner particles from the surface as the second brush contacts the surface.