21-02-2013 дата публикации
Номер: US20130045028A1
Принадлежит:
An electrophotographic photoreceptor is prepared for charging. Corona electrodes before and after the erase lamp apply respective biases to provide the correct sign of charge for cleaning, and to discharged trapped charges in the photoreceptor. Toner is then cleaned off the photoreceptor. This leaves the photoreceptor electrically and mechanically reconditioned and ready for its next printing cycle. 1. A method of preparing a rotatable photoreceptor in an electrophotographic (EP) printer , comprising:providing the EP printer having the rotatable photoreceptor;providing a charger, an exposure subsystem, a development station, a transfer station, an erase lamp, and a cleaning station arranged in that order around the photoreceptor in the direction of rotation thereof;providing a first corona electrode disposed within 3 cm of a surface of the photoreceptor, but not in contact therewith, between the transfer station and the erase lamp, the transfer station and the erase lamp being less than 2 cm apart;providing a second corona electrode disposed within 3 cm of the surface of the photoreceptor, but not in contact therewith, between the erase lamp and the cleaning station, the erase lamp and the cleaning station being less than 2 cm apart; and charging a selected active area of the photoreceptor with charge of a selected polarity to a selected surface potential using the charger;', 'image-wise exposing the photoreceptor to reduce the magnitude of surface charge in exposed portions of the active area using the exposure subsystem;', 'selectively applying toner to the active area using the development station;', 'transferring some of the applied toner from on the active area to a receiver using the transfer station;', 'applying a first bias to the first corona electrode to charge the exposed and unexposed portions of the active area to respective selected pre-erase potentials of the same polarity as the selected surface potential and to charge toner remaining in the active ...
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