Commutating method for SCD donor roll bias

Details Commutating method for SCD donor roll bias Commutating method for SCD donor roll bias

1993-11-23

1996-07-23

Grimley, Arthur T.

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118647, 118651, 355261, G03G 1506

Patent

active

055395058

ABSTRACT:
A non-interactive or scavengeless development system for use in color imaging is disclosed. A donor roll structure is provided with two sets of interdigitated electrodes which are embedded in the surface of the donor roll. To minimize wear and tear on the electrodes of one set of the interdigitated wire electrodes which are selectively actuated in a development zone, power is commutated thereto via a member that makes rolling contact with the electrodes only in the development zone. In two embodiments of the invention, the contact is made with the electrodes at the outer surface of the donor roll while in another embodiment contact is made on the interior surface of the donor roll structure.

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patent: 5394225 (1995-02-01), Prker

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