Image forming apparatus and developing device thereof.

摘要

An image forming apparatus which employs a recording method that uses electrically conductive developer, and a developing device for use in the image forming apparatus. A magnetic field is generated in an area having a width larger than that of a group of electrodes at the position of the electrode group so as to prevent the developer which has been passed over the electrodes from flowing outside of an image area at the downstream side of the group of electrodes.