Developing apparatus, developing method, image forming...

Details Developing apparatus, developing method, image forming... Developing apparatus, developing method, image forming...

2006-04-04

2006-04-04

Chen, Sophia S. (Department: 2852)

Electrophotography

Image formation

Development

C399S055000, C399S285000, C399S291000

Reexamination Certificate

active

07024142

ABSTRACT:
A developing device including a latent image supporter. Powder is adhered on the latent image supporter to develop a latent image on the latent image supporter and a transporting member is arranged opposite to the latent image supporter. A plurality of electrodes are formed in the transporting member for generating a traveling-wave electric field to move the powder, and n-phase voltages are applied to the electrodes of the transporting member to form an electric field in a first direction so that the powder moves towards the latent image supporter at an image portion of the latent image and in a second direction so that the powder moves in a direction opposite to the latent image supporter at a non-image portion of the latent image.

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