Only contact making the toner the image support body come in contact where manner of installing to the development device of the development device and the toner regulation roller and its toner regulation roller which are used

摘要

PROBLEM TO BE SOLVED: To provide a developing device capable of preventing the occurrence of the aggregation and the adhesion of toner while prolonging its life.;SOLUTION: This developing device 1 is provided with a developing roller 3 coming into contact with an image carrier where an electrostatic latent image is formed, and rotated at the time of forming an image in order to make the electrostatic latent image visualizable by sticking the toner 7 to the latent image, a toner supply roller arranged to come into contact with the roller 3 and supplying the toner 7 to the roller 3, and a toner regulating member regulating the amount of the toner adhering to the roller 3 and forming a toner thin layer on the roller 3. Then, the roller 3 is rotated in a reverse direction to the rotating direction A at the time of forming the image when developing is not performed.;COPYRIGHT: (C)2003,JPO