Patent ID: 6337957
Filing Date: 2002-01-08
Classification: G03G

Abstract:
A developing device, comprising:a developer bearing member including an internal magnetic field generating device and configured to carry and convey a developer, including toner and carrier, on its surface; a developer regulating member configured to regulate a quantity of the developer carried and conveyed by the developer bearing member toward a developing area; a developer accommodating unit configured to accommodate the developer regulated to be conveyed toward the developing area by the developer regulating member; and a toner accommodating unit including a toner supplying opening opposing a surface of the developer bearing member at a position adjacent to and upstream of the developer accommodating unit in a developer conveying direction, wherein the toner in the toner accommodating unit is taken into the developer on the developer bearing member based on a toner density of the developer on the developer bearing member by a movement of the developer with a conveyance of the developer on the developer bearing member; and a peeling off member opposing, without contacting, a surface of the developer bearing member in the developer accommodating unit and configured to peel off an upper layer part of the developer carried and conveyed by the developer bearing member.