Photocopying – Including fiber optics
Patent
1975-10-29
1977-10-25
Griffin, Donald A.
Photocopying
Including fiber optics
G03G 15048
Patent
active
040553809
ABSTRACT:
In an electrostatographic copier in which imaging material is transferred from an image support surface to an overlying copy sheet in a transfer station by electrical transfer charges, the variable leakage conduction of these transfer charges by the copy sheet away from the transfer area (to contacting conductive members) changes the available transfer field strength, thus affecting transfer efficiency and quality. Here the conductive members contacting the copy sheet while it is in the transfer station are electrically connected to ground only through a high resistance whereby the transfer leakage currents through the paper provide a compensatory self-biasing floating voltage on the conductive surfaces which opposes these leakage currents.
REFERENCES:
patent: 3508824 (1970-04-01), Leinbach et al.
patent: 3813548 (1974-05-01), Silverberg
patent: 3817615 (1974-06-01), Adachi et al.
patent: 3850519 (1974-11-01), Weikel, Jr.
patent: 3950680 (1976-04-01), Micheals et al.
Smith; Eastman Kodak Research Disclosure; "Toner Transfer Apparatus for Automatically Adjusting Transfer Bias Potential"; pp. 16-17; Jan. 1975.
Gellner M. L.
Griffin Donald A.
Xerox Corporation
LandOfFree
Transfer charge maintaining system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transfer charge maintaining system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transfer charge maintaining system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-120443