Developing device and image forming apparatus that utilize a...

Details Developing device and image forming apparatus that utilize a... Developing device and image forming apparatus that utilize a...

2011-07-05

2011-07-05

Walsh, Ryan D (Department: 2852)

Electrophotography

Control of electrophotography process

Control of developing

C399S053000, C399S285000

Reexamination Certificate

active

07974545

ABSTRACT:
A developing device capable of improving the image density and the dot reproducibility, and an image forming apparatus including the same are provided. A developing device applies an alternating voltage superimposed on a direct current voltage to a developing roller to thereby develop an electrostatic latent image formed on a photoreceptor with toner. A bias voltage waveform superimposed at this time has an original period (first period) in which each of a development-side electrical potential and an opposite development-side electrical potential is applied one time and a period (second period) in which a Vpp is gradually increased from the initial value to the maximum value.

REFERENCES:
patent: 4473627 (1984-09-01), Kanbe et al.
patent: 5999782 (1999-12-01), Iguchi et al.
patent: 6282385 (2001-08-01), Suto
patent: 2005/0196189 (2005-09-01), Matsuura et al.
patent: 2009/0304414 (2009-12-01), Hamada
patent: 2009/0317143 (2009-12-01), Hamada
patent: 02-25856 (1990-01-01), None
patent: 5-297691 (1993-11-01), None
patent: 11-44985 (1999-02-01), None
patent: 2000-227701 (2000-08-01), None
patent: 2000-347507 (2000-12-01), None
patent: 2005-250125 (2005-09-01), None
English Translation JP05-297691 to Takahashi et al.

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