Developing cartridge and an electrophotographic image...

Details Developing cartridge and an electrophotographic image... Developing cartridge and an electrophotographic image...

2007-03-27

2007-03-27

Brase, Sandra L. (Department: 2852)

Electrophotography

Internal machine environment

Particle or contaminant control

Reexamination Certificate

active

10957638

ABSTRACT:
A developing cartridge includes a casing having a toner chamber, a feeding roller installed within the toner chamber, a developing roller supplied with a toner from the feeding roller, and a sealing film interposed between the developing roller and the feeding roller. The sealing film blocks a movement of the toner toward a gap between the developing roller and a bottom of the toner chamber, so that the toner does not leak out through the gap between the developing roller and the bottom of the toner chamber.

REFERENCES:
patent: 5802441 (1998-09-01), Okada
patent: 6009287 (1999-12-01), Goldie
patent: 6101352 (2000-08-01), Hashimoto et al.
patent: 6137970 (2000-10-01), Sasago
patent: 2003/0161644 (2003-08-01), Yokoi et al.
patent: 11-249399 (1999-09-01), None
patent: 11-305546 (1999-11-01), None
patent: 2000-162857 (2000-06-01), None

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