Developer regulating member for an image forming apparatus

Details Developer regulating member for an image forming apparatus Developer regulating member for an image forming apparatus

2005-07-12

2005-07-12

Braun, Fred (Department: 2852)

Electrophotography

Image formation

Development

C399S274000

Reexamination Certificate

active

06917781

ABSTRACT:
In an image forming apparatus where toner is supplied to a photosensitive member via a toner supply roller and a developing roller, the toner being charged by the friction contact between toner supply roller and the developing roller, a regulating blade is in contact with the developing roller at a point between contact between the toner supply roller and the developing roller and between the developing roller and the photosensitive member. The area between the contact between the toner supply roller and the developing roller and where the layer regulating blade contacts the developing roller constitutes a first region and the area between the contact between the regulating blade and the developing roller and the developing roller and the photosensitive member constitutes a second region. The charge amount per unit area in the two regions is substantially equal.

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patent: 61-133952 (1986-06-01), None
patent: A 2001-318533 (2001-11-01), None

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