Patent ID: 6175701
Filing Date: 2001-01-16
Classification: G03G

Abstract:
An electrophotographic image forming apparatus, comprising:an organic photoconductive drum for forming an image;a charging roller applying a high voltage to said drum;a developing roller supplying toner to said drum;a doctor blade regulating thickness of a layer of toner on the developing roller;a supply roller supplying the toner to the developing roller;an agitator supplying the toner to the supply roller;a first cleaning blade disposed in a first position at a side of said drum, to scrape non-transferred toner from said drum after a transferring operation;a second cleaning blade disposed in a second position at a side of said charging roller, to scrape non-transferred toner from said charging roller;a housing partially surrounding said drum while encasing said charging roller, said first cleaning blade and said second cleaning blade;a frame positioned within said housing, said frame comprised of a first flange spaced-apart from a second flange, and a third flange spaced-apart from said first flange and said second flange;said third flange, in conjunction with said first flange and said first cleaning blade, forming a reservoir extending outwardly from said frame and toward said drum to store non-transferred toner received from said first cleaning blade; andsaid first flange maintaining said first cleaning blade in said first position and said second flange maintaining second cleaning blade in said second position while said frame resides within said housing.