Developing apparatus and image-forming apparatus using the same

Details Developing apparatus and image-forming apparatus using the same Developing apparatus and image-forming apparatus using the same

1996-02-07

1997-12-23

Moses, R. L.

Electrophotography

Image formation

Development

399281, G03G 1508

Patent

active

057015635

ABSTRACT:
A developing apparatus includes a housing having a toner holding space and toner discharging aperature, a developing roller rotated in a predetermined direction in the aperature, a toner leveling member closing a gap between a periphery of the developing roller and an edge of the aperture at which the periphery of the developing roller is moved out from the aperture in its predetermined rotating direction, and slidably pressed against the periphery of the developing roller, a toner supplying roller rotated in the space and pressed against the periphery of the developing roller, and a sliding and closing member closing a gap between the periphery of the supplying roller and a portion of the inner surface of the housing corresponding to a gap between the periphery of the developing roller and an edge of the aperture at which the periphery of the developing roller is moved into the aperature in its predetermined rotating direction, and slidably pressed against the periphery of the supplying roller.

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