公开(公告)号：CA2018500A1

公开(公告)日：1991-02-11

申请号：CA2018500

申请日：1990-06-07

Applicant: IBM

Inventor： ALDRICH CHARLES S ,  APPLEGATE STEVEN L ,  CRAFT JAMES A ,  MOLLOY JAMES J ,  PAWLEY MICHAEL L

IPC: G03G15/08

Abstract: A developer apparatus (29) for use in an electrostatic reproduction apparatus includes a large reservoir of toner (34, 44). The toner is located in a supply chamber (39) and is metered to a developer roller chamber (35) from which it is carried by a developer roller (31) past a doctor blade (36) to a photoconductor drum (19) for image development. A toner metering roller (41) rotates with the developer roller (31) to provide a continuous supply of toner from the supply chamber (39) to the developer chamber (35). Once an equilibrium level (65) is reached, the toner metering roller (41) acts to remove toner (34) from the developer chamber (35) to the supply chamber (39) to insure proper operation of the developer roller (31).