| 摘要 |
<p>A magnetic brush applicator (12) for use in an electrographic reproduction apparatus for applying a magnetic developer (D) to a recording element comprises a cylindrical non-magnetic sleeve (20) having a rotatably driven magnetic core piece (22) positioned therein. According to the invention, the axis (A') of rotation of the magnetic core piece is displaced from the sleeve axis (A), such displacement being toward a development zone at which the applicator applie s developer to the recording element, and preferably toward region of such zone at which the recording element exits therefrom. As a result of the non-concentric arrangement between the applicator's sleeve and core piece, the torque requirements for rotating the core pieces are reduced, developer replenishment is facilitated, less thermal energy is introduced into the developer during rotation of the core piece, and magnetic carrier pick-up by the recording element is reduced.</p> |
