Methods and devices for removing latent image ghosts...

Details Methods and devices for removing latent image ghosts... Methods and devices for removing latent image ghosts...

2005-12-28

2008-09-09

Chen, Sophia S (Department: 2852)

Electrophotography

Supplemental electrophotographic process

Exposure or charging

C399S050000

Reexamination Certificate

active

07424250

ABSTRACT:
A ghost removing device for a marking apparatus includes a photoreceptor, a primary charging device, an erase light generating device to generate an erase light when activated, a voltage source to supply a charge voltage to the primary charging device, and a controller configured to control the at least one voltage source to supply the charge voltage to the primary charging device and to activate the erase light generating device substantially simultaneously after transfer of a toned image within a marking cycle. A ghost removing method for a marking device with a photoreceptor, including performing a partial print cycle, applying an erase light to the photoreceptor, and applying a charge voltage to the photoreceptor, wherein the erase light and the charge voltage are applied to the photoreceptor substantially simultaneously after completion of the partial cycle.

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patent: 2002/0031371 (2002-03-01), Inoue
patent: 2003/0123902 (2003-07-01), Wagner et al.

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