Discharge device, image forming unit and apparatus

Details Discharge device, image forming unit and apparatus Discharge device, image forming unit and apparatus

2006-07-28

2010-11-09

Gray, David M (Department: 2852)

Electrophotography

Image formation

Charging

C399S050000, C399S176000

Reexamination Certificate

active

07831177

ABSTRACT:
A discharge device including a discharge member that discharges an photoconductive member overlying an image bearer via a prescribed gap, and a voltage applying device that only applies direct current voltage to the discharge member. The below described relation is established, wherein AV is a difference in voltage on the photoconductive member creating an imperceptible difference in density on an output image, d (V/micrometer) is a rate of a voltage discharged on the photoconductive member in relation to an interval of the gap I (micrometer) between the discharge member and the image bearer:in-line-formulae description="In-line Formulae" end="lead"?ΔV≧I·d.in-line-formulae description="In-line Formulae" end="tail"?

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