Image forming apparatus and charging device therefor

Details Image forming apparatus and charging device therefor Image forming apparatus and charging device therefor

2005-08-02

2005-08-02

Lee, Susan (Department: 2852)

Electrophotography

Image formation

Charging

C361S225000

Reexamination Certificate

active

06925275

ABSTRACT:
A charging device of the present invention includes a charge roller adjoining or contacting the surface of a photoconductive element. A DC and an AC voltage source output a DC and an AC voltage, respectively. A voltage applying device superposes the DC and AC voltage and applies the resulting superposed voltage to the charge roller. A waveform controller causes the AC voltage source to generate an AC voltage having the waveform pattern of particular noise and frequency lying in a preselected range.

REFERENCES:
patent: 4758486 (1988-07-01), Yamazaki et al.
patent: 5272506 (1993-12-01), Goto et al.
patent: 5541711 (1996-07-01), Kisu et al.
patent: 5765077 (1998-06-01), Sakurai et al.
patent: 5982606 (1999-11-01), Masuda et al.
patent: 6296704 (2001-10-01), Yamazaki
patent: 6328800 (2001-12-01), Yamazaki
patent: 6534227 (2003-03-01), Kabata et al.
patent: 6697584 (2004-02-01), Tsunoda et al.
patent: 06175472 (1994-06-01), None
patent: 11258957 (1999-09-01), None
patent: 2000235298 (2000-08-01), None
patent: 2002207352 (2002-07-01), None

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