Patent ID: 8014706
Filing Date: 2011-09-06
Classification: G03G

Abstract:
1. A developing device which contains developer having toner carrier and toner and develops a latent image formed on an image carrier, comprising: a developing roller disposed to face the image carrier for carrying the developer by a magnetic force; and a toner carrier capturing roller disposed to face the developing roller for capturing the toner carrier adhered onto the image carrier by a magnetic force; wherein the developing roller generates a magnetic pole at a side facing the toner carrier capturing roller, and a first virtual line, which connects a rotational center of the developing roller to a rotational center of the toner carrier capturing roller, passes through a region between a position where a magnetic flux density of the magnetic pole in a normal line direction is minimum on the developing roller at the upstream side in the rotational direction of the developing roller and a position where the magnetic flux density of the magnetic pole in the normal line direction is maximum on the developing roller.