Sealing device, process cartridge, image forming apparatus and a

Details Sealing device, process cartridge, image forming apparatus and a Sealing device, process cartridge, image forming apparatus and a

1994-07-20

1996-03-26

Smith, Matthew S.

Photocopying

Contact printing

Light boxes

355200, 355245, 355260, G03G 2100

Patent

active

055025471

ABSTRACT:
A sealing device for use in a process cartridge including a cartridge frame, an image bearing member mounted in the cartridge frame, and process equipment, mounted in the cartridge frame, operative on the image bearing member, to prevent toner from leaking out of said cartridge frame. The sealing device includes a holder having an attachment position for detachably attaching the holder to the cartridge frame, a first sealing member, attached to the holder, capable of contacting a first position on the cartridge frame to prevent the toner from leaking out of said cartridge frame, and a second sealing member, separate from the first sealing member, attached to said holder and capable of contacting a second position on the cartridge frame, wherein the first position and the second position are different.

REFERENCES:
patent: 4564283 (1986-01-01), Fox
patent: 4888620 (1989-12-01), Fujino et al.
patent: 5212521 (1993-05-01), Ogawa et al.
patent: 5274425 (1993-12-01), Fukumoto et al.
patent: 5294960 (1994-03-01), Nomura et al.
patent: 5321473 (1994-06-01), Azami

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