Imaging system including pre-transfer discharge

Details Imaging system including pre-transfer discharge Imaging system including pre-transfer discharge

1991-02-12

1992-11-24

Moses, Richard L.

Photocopying

Contact printing

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355271, 355326, 430100, G03G 1516

Patent

active

051667347

ABSTRACT:
Imaging apparatus including an image forming surface, image forming apparatus for defining an electrostatic latent image on the image forming surface, the latent image having image portions and background portions, development apparatus for developing the electrostatic latent image in a reversal mode, using electrically charged pigmented toner particles to form a developed image overlying the image portions, whereby the developed image on the image forming surface is at a first electrical potential and the background portions on the image forming surface are at a second electrical potential, discharge apparatus for partially discharging the image forming surface so that the developed image is at a third electrical potential and the background portions are at a fourth potential and an image receiving surface at a fifth potential, for receiving the developed image from the image forming surface, wherein the difference between the fourth potential and the fifth potential is low enough such that substantially no electrical discharge occurs between the image receiving surface and the background portions.

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