IMAGE FORMING APPARATUS, IMAGE FORMING CARTRIDGE AND DEVELOPING CARTRIDGE

摘要

PROBLEM TO BE SOLVED: To provide an image forming apparatus without wasting toner or decreasing productivity, and to provide an image forming cartridge and a developing cartridge to be attached to the image forming apparatus.

SOLUTION: The image forming apparatus includes: a photoreceptor drum 16 forming a toner consumption image outside of a transfer image forming region 16A; a developing unit 74 developing a latent image formed on a surface of the photoreceptor 16 to make the transfer toner image and the toner consumption image; and a toner recovery blade 20B recovering the toner by eliminating the toner consumption image formed on a surface of the photoreceptor drum 16. The developing unit 74 is provided with a developing roller 126 and agitating and conveying augers 116 and 120 conveying the developer containing the toner along the developing roller 126 and having the toner attach to the developing roller 126. The toner consumption image is formed in a region on a downstream side in the conveying direction of the toner or the developer of the photoreceptor drum 16.

COPYRIGHT: (C)2009,JPO&INPIT