Developing device and image forming apparatus

Details Developing device and image forming apparatus Developing device and image forming apparatus

1998-02-24

1999-08-10

Moses, Richard

Electrophotography

Image formation

Development

399359, G03G 1508, G03G 2110

Patent

active

059372516

ABSTRACT:
A developing device is provided with: a photosensitive body; a developing roller for performing an electro-photography on the photosensitive body at a predetermined developing position of the photosensitive body by using charged toners; a moving device for moving the developing roller and the photosensitive body such that the developing roller performs the electro-photography on the photosensitive body at the developing position and that, after the electro-photography is performed, the photosensitive body transports the toners, which have never been used for the electro-photography and remain on the photosensitive body, to the developing position where the transported toners adhere from the photosensitive body onto the developing roller so as to recover the transported toners from the photosensitive body onto the developing roller; and a collecting device opposed to the developing roller for collecting impurities mixed in the recovered toners on the developing roller by contacting with the developing roller.

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