Donor belt and electrode structure supported behind the belt for

Details Donor belt and electrode structure supported behind the belt for Donor belt and electrode structure supported behind the belt for

1992-08-31

1994-01-04

Moses, R. L.

Photocopying

Contact printing

Light boxes

118654, 355245, 355326, G03G 1508

Patent

active

052764885

ABSTRACT:
A scavengeless development system in which toner is detached from a donor belt and attracted to latent electrostatic images carried by an image receiver positioned adjacent the belt. Generation of a controlled powder cloud of toner particles is effected using AC electric fields created by applying an AC voltage to an embedded electrode structure stationarily positioned behind the donor belt. Unused toner is removed from the donor belt in a manner which avoids history effects due to accumulation of highly charged, relatively small toner particles on the donor belt.

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