Developing apparatus

Details Developing apparatus Developing apparatus

1997-06-27

1998-09-22

Moses, R. L.

Electrophotography

Image formation

Development

399272, 399285, G03G 1508

Patent

active

058129170

ABSTRACT:
A developing apparatus forms multiple toner layer and stably obtains predetermined toner charging amount and toner layer thickness, and further uniformly supplies the toner onto the toner carrying roller along its entire length. In the developing apparatus, a brush-like toner supplying roller having brush fibers and a second toner supplying roller are disposed at a predetermined interval and respectively brought into contact with a developing roller. The brush-like roller is first brought into contact with the developing roller after passing through the developing area on a photosensitive body opposing thereto, and the brush-like roller rotates in an inverse rotational direction to that of the developing roller at the contact position. The second roller is brought into contact with the developing roller after passing through the contact position with the brush-like roller, and rotates in a same rotational direction as that of the developing roller at the contact position.

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