Electrophotography – Control of electrophotography process – Control of transfer
Reexamination Certificate
2008-10-01
2011-12-27
Chen, Sophia S (Department: 2852)
Electrophotography
Control of electrophotography process
Control of transfer
C399S049000
Reexamination Certificate
active
08086127
ABSTRACT:
An adaptive approach is described that maximizes xerographic transfer efficiency, i.e. minimizes post toner image transfer residual mass, in response to changes in operational conditions, variations in material, and/or changes in other factors that may otherwise adversely affect xerographic transfer efficiency. The described approach may be used during a set up phase, or startup phase, of a xerographic system to determine an initial transfer field that provides a desired level of toner image transfer efficiency. The described approach may also be used in real time to dynamically adjust a transfer field to maintain a desired level of transfer efficiency. The described approach allows optimal toner image transfer efficiency to be achieved despite changes in the operational environments, and/or changes in the materials, e.g., paper, toner, etc., being processed.
REFERENCES:
patent: 5710958 (1998-01-01), Raj
patent: 7379684 (2008-05-01), Julien
patent: 2009/0180790 (2009-07-01), Gross et al.
Gross Eric M.
Li Faming
Chen Sophia S
Oliff & Berridg,e PLC
Xerox Corporation
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