Developing device and image forming apparatus

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

2009-04-14

2010-11-23

Gray, David M (Department: 2852)

Electrophotography

Internal machine environment

C399S285000

Reexamination Certificate

active

07840155

ABSTRACT:
A developing device facing an image carrier and including a developer carrier, a developer flying control member, and a development-noise control member. The developing device develops an electrostatic image formed on the image carrier by causing the developer to fly from the developer carrier to the image carrier upon an application of an alternating-current bias to the developer carrier. Noise produced by the development-noise control member vibrated by an oscillating electric field of the alternating-current bias is smaller than a noise produced by the developer flying control member vibrated by the oscillating electric field.

REFERENCES:
patent: 2003/0059228 (2003-03-01), Tatsumi
patent: 2005/0008401 (2005-01-01), Kawamura et al.

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