Developing apparatus

Details Developing apparatus Developing apparatus

1987-12-16

1989-05-02

Moses, R. L.

Photocopying

Contact printing

Light boxes

118661, G03G 1506

Patent

active

048273058

ABSTRACT:
The disclosure relates to a developing apparatus comprising a photosensitive drum, a developing roller and a gap restricting member provided between the photosensitive drum and the developing roller for restricting a minute gap therebetween.
Another embodiment discloses a developing apparatus which comprises a developing roller having an elastic roller and a restricting roller harder than the elastic roller and provided on the same shaft as the elastic roller at each side thereof. The restricting roller has a diameter equal to or smaller than that of the elastic roller when the elastic roller is unloaded.

REFERENCES:
patent: 3953121 (1976-04-01), Reichart
patent: 3987756 (1976-10-01), Katayama et al.
patent: 4426148 (1984-01-01), Ikemoto et al.
patent: 4583832 (1986-04-01), Kasamura et al.
patent: 4596455 (1986-06-01), Kohyama et al.
patent: 4688923 (1987-08-01), Kohyama
patent: 4746951 (1988-05-01), Hayakawa et al.

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