Electrostatic cleaning of electrodes in an electrographic...

Details Electrostatic cleaning of electrodes in an electrographic... Electrostatic cleaning of electrodes in an electrographic...

G - Physics

01

D

15/1

G01D 15/00 (2006.01) G03G 15/32 (2006.01)

Patent

CA 1316643

ABSTRACT The print head of an electorgraphic printer is cleaned electrostatically. The printhead has a number of electrodes in an electrode array, which cooperate with a dielectric belt. Periodically, printing with the printer is interrupted (e.g. after every 100 pages of printing, or about every minute), and then substantially all of the electrodes are energized at the same time for a time period sufficient to effect burning off of contaminants from the electrodes (e.g. about the time it takes to print four pages, or about 3 seconds). A host computer controls the operation of the printer components. The printer developer unit may be moved away from the dielectric belt prior to the energization of all of the electrodes to effect cleaning.

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