Corona discharge apparatus

Claim 2

Apparatus for simultaneously image-exposing and imparting corona discharge to a photosensitive member in transit therethrough, comprising: a. a conductive sidewall having one end juxtaposed with said photosensitive member in said transit thereof and an opposite end; b. means disposed adjacent said sidewall opposite end for defining an optical opening; c. electrodes disposed below said optical opening defining means, each electrode comprising an elongated body tapering to a corona discharge point, each elongated body being fixedly disposed in substantial non-perpendicular relation to said photosensitive member in said transit thereof for directing corona discharge onto both said conductive sidewall and said photosensitive member in said transit thereof; and d. image-generating means supported above said optical opening defining means for applying a radiant energy image through said optical opening onto said photosensitive member in said transit thereof.

Claim 3

The apparatus claimed in claim 1 further including a voltage supply and means interconnecting said voltage supply and said electrodes.

Claim 4

The apparatus claimed in claim 2 including first and second pluralities of said electrodes and another conductive sidewall having one end juxtaposed with said photosensitive member in said transit thereof and an opposite end disposed adjacent said means defining an optical opening, said first electrode plurality directing corona discharge onto one said sidewall and said second electrode plurality directing corona discharge onto the other said sidewall and further including means interconnecting said voltage supply and said sidewalls.

Claim 5

The apparatus claimed in claim 3 wherein said first electrode plurality is staggered with respect to said second electrode plurality.

Claim 6

Apparatus for simultaneously image-exposing and imparting corona discharge to a photosensitive member in transit therethrough, comprising: a. a conductive sidewall having one end juxtaposed with said photosensitive member in said transit thereof and an opposite end; b. means disposed adjacent said sidewall opposite end for defining an optical opening; c. a plurality of electrodes, each electrode comprising an elongated body tapering to a corona discharge point for applying corona discharge to said photosensitive member in said transit thereof; d. a voltage supply; e. means interconnecting said voltage supply and said electrodes including a translucent conductive element supporting said electrodes, disposed below said optical opening and substantially coextensive with said optical opening; and f. image-generating means supported above said optical opening and applying a radiant energy image through said optical opening onto said photosensitive member in said transit thereof.

Claim 7

Apparatus for simultaneously image-exposing and imparting corona discharge to a photosensitive member in transit therethrough, comprising: a. a conductive sidewall having one end juxtaposed with said photosensitive member in said transit thereof and an opposite end; b. means disposed adjacent said sidewall opposite end for defining an optical opening; c. a plurality of electrodes, each electrode comprising an elongated body tapering to a corona discharge point for applying corona discharge to said photosensitive member in said transit thereof; d. a voltage supply; e. means interconnecting said voltage supply and said electrodes including a translucent conductive element supporting said electrodes, disposed below said optical opening and substantially coextensive with said optical opening; and f. image-generating means supported above said optical opening and applying a radiant energy image through said optical opening onto said photosensitive member in said transit thereof.

Claim 8

The apparatus claimed in claim 5 wherein said electrodes are adhesively secured to said translucent conductive element.

Claim 9

The apparatus claimed in claim 4 wherein said electrodes are adhesively secured to the periphery of said transparent conductive element.

Claim 10

The apparatus claimed in claim 6 wherein said electrodes each comprise a thin conductive strip coextensive with said optical opening.

Claim 11

The apparatus claimed in claim 5 wherein said electrodes each comprise a metal deposited on said translucent conductive element.

Claim 12

Apparatus for simultaneously image-exposing and imparting corona discharge to a photosensitive member in transit therethrough, comprising: a. a conductive member having first and second sidewalls, each having one end juxtaposed with said photosensitive member in said transit thereof and an opposite end; b. means disposed adjacent said sIdewall opposite ends for defining an optical opening; c. first and second pluralities of electrodes disposed below said optical opening and intermediate said sidewalls, each electrode comprising an elongated body tapering to a corona discharge point; d. a voltage supply; e. a conductive element disposed intermediate said first and second electrode pluralities, each of said electrode pluralities directing corona discharge onto both said conductive element and said photosensitive member in said transit thereof; f. means interconnecting said voltage supply, said first and second electrode pluralities and said conductive element; and g. image-generating means supported above said optical opening for applying a radiant energy image through said optical opening onto said photosensitive member in said transit thereof.

Claim 13

Apparatus for simultaneously image-exposing and imparting corona discharge to a photosensitive member in transit therethrough, comprising: a. a conductive member having first and second sidewalls, each having one end juxtaposed with said photosensitive member in said transit thereof and an opposite end; b. means disposed adjacent said sIdewall opposite ends for defining an optical opening; c. first and second pluralities of electrodes disposed below said optical opening and intermediate said sidewalls, each electrode comprising an elongated body tapering to a corona discharge point; d. a voltage supply; e. a conductive element disposed intermediate said first and second electrode pluralities, each of said electrode pluralities directing corona discharge onto both said conductive element and said photosensitive member in said transit thereof; f. means interconnecting said voltage supply, said first and second electrode pluralities and said conductive element; and g. image-generating means supported above said optical opening for applying a radiant energy image through said optical opening onto said photosensitive member in said transit thereof.

Claim 14

The apparatus claimed in claim 10 wherein said first electrode plurality is staggered with respect to said second electrode plurality.