Patent ID: 7433644
Filing Date: 2008-10-07
Classification: G03G

Abstract:
1. A cleaning system comprising in an operative arrangement, a movable photoconductive belt, an electrostatically charged cleaning brush, and a cleaning blade, said cleaning blade positioned upstream in said system and located therein prior to said electrostatically charged cleaning brush so that said electrostatically charged cleaning brush is positioned in said system subsequent to said cleaning blade, said movable photoconductive belt being adapted to travel to said cleaning blade before said movable photoconductive belt contacts said subsequently positioned electrostatically charged cleaning brush, said cleaning blade adapted to scrape a partial amount of toner off said movable photoconductive belt and said movable photoconductive belt being lubricated by remaining toner prior to contacting said subsequently positioned brush, and said electrostatically charged cleaning brush being present in said system to remove charged toner from said movable photoconductive belt that was not previously removed by said cleaning blade, wherein said cleaning further comprises a vacuum unit for removing loosened toner from said movable photoconductive belt, and wherein said vacuum unit has at least two air flow channels, with one of said two air flow channels being in operative air flow vacuuming relationship with said electrostatically charged cleaning brush and another of said two air flow channels being in operative air flow vacuuming relationship with said cleaning blade.