Self-cleaning scorotron with focused ion beam

Details Self-cleaning scorotron with focused ion beam Self-cleaning scorotron with focused ion beam

1987-08-03

1989-06-20

LaRoche, Eugene R.

Radiant energy

Corona irradiation

250326, 361230, H01T 1904

Patent

active

048411469

ABSTRACT:
A self cleaning charging unit includes an insulating housing and a current limited, low capacitance corona wire positioned within the housing and located 0.5-6 mm away from biased conductive plates which form a slit through the bottom of the housing that allows ions to pass therethrough onto a receptor surface. The conductive plates are used to control the flow of ions through the slit and opposing insulating wedges are positioned above and incontacting relationship with each conductive plate in order to focus additional ions to the center of the slit. At inside edges of the slit there are additional fringe fields that aid in pumping ions out of the slit. Charging a receiver in corotron or scorotron fashion is possible with this charging unit.

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