Electrophotography – Image formation – Development
Reexamination Certificate
2006-10-17
2009-12-29
Gray, David M (Department: 2852)
Electrophotography
Image formation
Development
C399S053000, C399S055000, C399S060000
Reexamination Certificate
active
07639970
ABSTRACT:
A control system for use with a development process including at least one magnetic roll with a settable speed is provided. The controller is directly or indirectly responsive to a reload feedback signal, which signal is generated in response to changes in output reload performance of the development process. In the case of direct responsiveness, the controller uses one or more reload feedback signals to facilitate magnetic roll speed setting. In the case of indirect responsiveness, the controller uses a reload sensitivity signal, which reload sensitivity signal varies as a function of input digital image content and output reload performance feedback, to facilitate magnetic roll speed setting.
REFERENCES:
patent: 4371257 (1983-02-01), Nishikawa
patent: 6167226 (2000-12-01), Matalevich et al.
Bray Daniel M.
Burry Aaron M.
Julien Paul C.
Paul Peter
Ramesh Palghat S.
Gray David M
Oliff & Berridg,e PLC
Walsh Ryan D
Xerox Corporation
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