Patent ID: 6963714
Filing Date: 2005-11-08
Classification: G03G

Abstract:
1. A developing blade member for regulating the thickness of a layer of a developer on a peripheral surface of a rotatable developing roller, enclosing a magnet roller, which is scraped by a scraper scraping the developer toward an inside portion of the developing roller in the longitudinal direction of the developing roller and provided at a longitudinal end of the developing roller, said developing blade member comprising: an elastic member configured and positioned to regulate a thickness of the layer of the developer on the peripheral surface of the developing roller; a metal plate configured and positioned to support said elastic member; and two projections, each projecting toward the developing roller and provided at a different longitudinal end of said metal plate, wherein an inside end of one of said projections, with respect to the longitudinal direction of the developing roller, is disposed inward of an inside end of the scraper and in a non-image-formation region of the developing roller.