DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND DEVELOPING ROLLER

摘要

PROBLEM TO BE SOLVED: To appropriately release developer from a small developing roller. SOLUTION: In the surface of the developing roller 41, if it is assumed that the area where a magnetic flux density in the direction of the normal due to a releasing pole N2 is maximum is assigned as a reference position, an area where a magnetic flux density is substantially equal to the maximum value of the magnetic flux density is present over a fixed area including the reference position. COPYRIGHT: (C)2010,JPO&INPIT