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US 4,056,723 AGranted
Rotatable corona device
AssigneeXerox Corporation
InventorsBrian E. Springett, Dror Sarid
Life of this patent
Estimating the term…
Abstract
A corona charging arrangement comprising a plurality of charging devices formed onto a unit. Each of the devices is rotatable to an operative position in which it is coupled to suitable terminals for applying energizing potential thereto, the operative position being selected so that charge therefrom is deposited on the imaging surface.
Claims5
A corona charging arrangement for depositing charge on an imaging surface comprising:
- a plurality of corona discharge devices carried by a common member, each device comprising a corona electrode including a wire coated with a thick dielectric material sufficient to prevent the flow of conduction current therethrough, conductive biasing member carried by said common member, said electrode supported in contact with said biasing member, means for applying corona causing potentials to one of said devices, and
- means for moving said member to orient one of said plurality of devices for depositing charge on said surface.
Dependencies are inferred from the claim text.