Sealing members for a developing device in an image forming appa

Details Sealing members for a developing device in an image forming appa Sealing members for a developing device in an image forming appa

1993-03-29

1994-06-14

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355215, G03G 1506

Patent

active

053214730

ABSTRACT:
A developing device incorporated in an image forming apparatus and having a developing roller facing an image carrier via an opening formed through a casing, and a pair of seal members attached to the casing and adjoining opposite side edges of the opening for preventing a developer from being scattered around. The seal members each has a side seal portion for sealing the associated side edge of the opening, and an under seal portion extending from the lower end of the side seal portion. The under seal portion extends from the side seal portion toward the center of the developing roller, providing the entire seal member with a form of a letter L.

REFERENCES:
patent: 4800411 (1989-01-01), Tanaka et al.
patent: 4897693 (1990-01-01), Sawayama
patent: 5057868 (1991-10-01), Sekino et al.
patent: 5134960 (1992-08-01), Shirai
patent: 5166733 (1992-11-01), Eliason
patent: 5212521 (1993-05-01), Ogawa et al.

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