Control system for a xerographic transfer station using a belt
AssigneeXerox Corporation
InventorsChristopher A. DiRubio, Gerald M. Fletcher, Michael F. Zona, Rachael L. McGrath, Bruce E. Thayer
Life of this patent
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Abstract
An electrostatographic printing apparatus comprises a charge receptor, and a transfer station for transferring a toner image from the charge receptor to a sheet by providing an electric field of predetermined magnitude at a transfer zone. The transfer station includes a rotatable transfer member, with a cleaning corotron associated therewith. A control system for maintaining a constant current at the transfer zone takes into account a current supplied by the cleaning corotron. The control system can also take into account current leakages associated with the transfer member.
Claims8
An electrostatographic printing apparatus, comprising:
- an imaging surface,
- a rotatable transfer member, substantially in contact with the imaging surface at a transfer zone;
- a control system for biasing the transfer member at the transfer zone;
- an electrically biasable cleaning device associated with the transfer member;
- the control system taking into account at least one of a current leakage or a bias associated with the cleaning device to obtain a desired electrical field at the transfer zone;
- wherein the cleaning device includes a biasable cleaning corotron, associated with the transfer member;
- and
- wherein the control system takes into account at least one of a current leakage or a bias associated with the cleaning corotron.
Dependencies are inferred from the claim text.