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Electroplating Imaging Method Disclosure Number: IPCOM000092733D
Original Publication Date: 1967-Jan-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 1 page(s) / 12K

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Nepela, DA: AUTHOR [+1]


High-volume reproduction is realized with an electrophotographic process comprising:

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Electroplating Imaging Method

High-volume reproduction is realized with an electrophotographic process comprising:

1. Uniformly electrostatically charging a member having a dielectric surface,

2. Exposing an uncharged photoconductor which exhibits persistent photoconductivity to a pattern of light and dark,

3. Bringing the charged dielectric surface and the exposed photoconductor into contact so that the charge is dissipated in the exposed area of the photoconductor, and

4. Separating the dielectric surface from the photoconductor and developing the electrostatic pattern formed on the dielectric surface.

Because the conductive pattern persists in the photoconductor, multiple copies of the pattern can be prepared. This is effected by sequentially bringing a plurality of electrostatically charged members with dielectric surfaces into contact with the exposed photoconductor without the necessity of re-exposing the photoconductor each time.

Both the photoconductor and the dielectric surface are carried on conductive backings. The latter can be grounded separateIl or connected together to yield a common ground.

As an example of the above process, a persistent organic photoconductor on an aluminum substrate is exposed to an image with a 40 watt tungsten lamp at a distance of 14 inches for 3 seconds. The thus exposed photoconductor is brought into intimate contact with a 10 micron thick polystyrene film on an aluminum substrate. Such occurs after the film is electrostat...