Charging device using a charge roller and image forming...

Details Charging device using a charge roller and image forming... Charging device using a charge roller and image forming...

2006-01-24

2006-01-24

Chen, Sophia S. (Department: 2852)

Electrophotography

Image formation

Charging

C361S221000, C399S168000, C492S047000

Reexamination Certificate

active

06990305

ABSTRACT:
An image forming apparatus of the present invention includes a charging device including a charge roller formed with annular grooves at opposite end portions thereof and configured to charge an image carrier. Annular gap forming members each are fitted in the annular grooves for forming a gap between the charge roller and the image carrier. The gap forming members each have an area of 1.0×10−6m2to 3.0×10−6m2in a section containing the axis of the charge roller.

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patent: 2002/0051654 (2002-05-01), Niimi
patent: 2002/0110387 (2002-08-01), Fujishiro
patent: 2003/0072587 (2003-04-01), Sugiura et al.
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patent: 07-209959 (1995-08-01), None
patent: 2001-194868 (2001-07-01), None
patent: 2001-337515 (2001-12-01), None
patent: 2002-55508 (2002-02-01), None

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