Electrophotographic printer

Abstract

The invention provides an electrophotographic printer wherein a toner unit and the entire apparatus can be reduced in size and the degree of freedom in designing can be achieved and besides possible deterioration of a photosensitive member can be prevented with certainty. A toner unit (3) in which toner power (2) is stored is disposed in the proximity of an outer periphery of a photosensitive belt (13) mounted for rotation. An LED head (5) is disposed on the rear face side of the photosensitive belt (13) while a developing roll (6) for causing toner power (2) to adhere to an electrostatic latent image to form a visible toner image and a cleaning roll (17) for removing and recovering remaining toner powder (2) of the photosensitive belt (13) are disposed in the toner unit (3). The cleaning roll (17) is formed from a magnet roll (18) and a sleeve (19) covering over an outer periphery of the magnet roll (18). The magnet roll (18) and the sleeve ( 19) are driven to rotate in the opposite directions to each other, whereupon a magnetic brush is formed. The magnetic brush attracts remaining toner powder (2) on the surface of the photosensitive belt (13) thereto and charges the surface of the photosensitive belt (13) after removal of the remaining toner powder (2) uniformly to a potential with charge.