Electrophotographic image forming apparatus

Details Electrophotographic image forming apparatus Electrophotographic image forming apparatus

1998-10-22

1999-10-26

Moses, Richard

Electrophotography

Having particular structure

Modular or displaceable

399120, 399262, 222DIG1, G03G 1508

Patent

active

059742887

ABSTRACT:
A process cartridge includes a toner frame and a developing frame joined together without damaging seal members and so that toner leakage due to damage of the seal members can be prevented. The invention also relates to an electrophotographic image forming apparatus to which such a process cartridge can detachably be mounted. Inner corners of opposed portions of ridges and grooves, provided on joint surfaces of the developing frame and the toner frame where a seal member for sealing an opening formed by fitting the ridges and the grooves together, are provided with parallel inclined surfaces.

REFERENCES:
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patent: 5153650 (1992-10-01), Maeshima
patent: 5229824 (1993-07-01), Tsusaka et al.
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patent: 5594535 (1997-01-01), Beufort et al.
patent: 5629759 (1997-05-01), Jyoroku
patent: 5666586 (1997-09-01), Nishimura et al.
patent: 5689773 (1997-11-01), Ha
patent: 5781831 (1998-07-01), Matsuzaki et al.

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