Non-magnetic single component developing device

Details Non-magnetic single component developing device Non-magnetic single component developing device

2007-04-17

2007-04-17

Brase, Sandra L. (Department: 2852)

Electrophotography

Image formation

Development

Reexamination Certificate

active

11079883

ABSTRACT:
A non-magnetic single component developing device that is included in combination with a photoreceptor in an image forming apparatus1of the electro-photographic system. The non-magnetic single component developing device includes a developing roller, a supplying roller, a doctor, a toner bath and a stirring blade. The supplying roller contains a rubber foam at least in its surface layer portion, the rubber foam including closed cells and open cells and having a foam ratio (porosity) of 0.75 to 0.85 and an average foam cell diameter of 350 to 500 μm.

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