Corona charger having two charging regions

Electrophotography – Image formation – Charging

Reexamination Certificate

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Reexamination Certificate

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07738813

ABSTRACT:
A corona charger includes a case provided in the vicinity of a device to be charged. The case includes an opening facing the device, a discharge electrode, a first charging region, and a second charging region. The discharge electrode provided inside the case and supplied with a voltage so as to generate a corona discharge charges a surface of the device from the opening by supplying the corona discharge to the surface. The first charging region includes no grid electrode at a position upstream of the opening in a surface moving direction of the device. The second charging region includes a grid electrode to which a predetermined voltage is applied at a position downstream of the opening. The voltage applied to the discharge electrode is an alternating current (AC) voltage superimposed on a direct current (DC) voltage.

REFERENCES:
patent: 4876578 (1989-10-01), Hara et al.
patent: 5424814 (1995-06-01), Suzuki et al.
patent: 5655186 (1997-08-01), Godlove et al.
patent: 6163669 (2000-12-01), Aoki et al.
patent: 6295437 (2001-09-01), Hodoshima et al.
patent: 6788913 (2004-09-01), Aoki et al.
patent: 7099611 (2006-08-01), Aoki et al.
patent: 7639974 (2009-12-01), Kimura et al.
patent: 2005/0047829 (2005-03-01), Nakane et al.
patent: 2005/0175377 (2005-08-01), Sakai et al.
patent: 2-63073 (1990-03-01), None
patent: 5-2988 (1993-01-01), None
patent: 6-202441 (1994-07-01), None
patent: 7-199598 (1995-08-01), None
patent: 8-3673 (1996-01-01), None
patent: 8-64337 (1996-03-01), None
patent: 10-111590 (1998-04-01), None
patent: 2782872 (1998-05-01), None
patent: 3385008 (2002-12-01), None
patent: 3646278 (2005-02-01), None
patent: 2005-202384 (2005-07-01), None
patent: 2006-195192 (2006-07-01), None

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