Positive overlay electronic xerographic printer

Claim 1

A positive overlay electronic printer for producing integrated toner images on support members from electronic signal generated positive images and positive overlays comprising a photoconductive member including an image forming surface supported for movement enabling the sequential production of toner images, charging means for uniformly electrostatically charging the image surface of the photoconductor member, overlay exposure means for creating a positive latent electrostatic image of a positive overlay by exposing the uniformly charged image surface to a positive light image corresponding to the positive overlay defining the background regions of the latent image as the discharged regions on the surfaces, electronic exposure means responsive to electronic signals for creating a positive latent electrostatic image of an image represented by electronic signals by moving a discharging scanning spot relative to the uniformly charged image surface defining the background regions of the latent image as the discharge regions on the surface, development means for developing latent images by depositing toner material on the surface to produce positive toner images with toner that adheres to the charged areas of the surface thereby corresponding to the latent image, registration transfer means for transferring in registration sequentially developed toner images from the image surface to the same side of the same support member and activating means for activating the electronic exposure and overlay exposure means to produce electronic and overlay latent images sequentially in either order for production of electronic and overlay toner images by the development means and for transfer of the sequentially produced electronic and overlay toner images to the same side of the same support member by the transfer means to produce said integrated toner image.

Claim 9

The method of producing an integrated toner image on a support member from electronic signal generated positive image and positive overlays comprising electrostatically charging uniformly the substantially continuous surface of a photoconductive member, exposing the uniformly charged photoconductive surface to a positive light image corresponding to a positive overlay creating an overlay latent electrostatic image thereby defining the background regions of the latent image as the discharged region on the surface, developing the overlay latent image by depositing a toner material onto the latent image creating a positive overlay toner image, transferring the overlay toner image to one side of a support member, recharging uniformly the photoconductive surface from which the overlay toner image is transferred, exposing the uniformly recharged surface of the photoconductive member to a positive light image created by electronic signals by moving a discharging scanning spot relative to the recharged surface creating an electronic latent electrostatic image thereby defining the background regions of the latent image as the discharged regions on the surface, developing the electronic latent image by depositing a toner material onto the latent image creating a positive electronic toner image and transferring in registration the electronic toner image to the same side of the same support member to which the overlay toner image was transferred producing said integrated toner image.

Claim 10

The method of producing an integrated toner image on a support member from electronic signal generated positive image and positive overlays comprising electrostatically charging uniformly the substantially continuous surface of a photoconductive member, exposing the uniformly charged photoconductive surface to a positive light image corresponding to a positive overlay creating an overlay latent electrostatic image thereby defining the background regions of the latent image as the discharged region on the surface, developing the overlay latent image by depositing a toner material onto the latent image creating a positive overlay toner image, transferring the overlay toner image to one side of a support member, recharging uniformly the photoconductive surface from which the overlay toner image is transferred, exposing the uniformly recharged surface of the photoconductive member to a positive light image created by electronic signals by moving a discharging scanning spot relative to the recharged surface creating an electronic latent electrostatic image thereby defining the background regions of the latent image as the discharged regions on the surface, developing the electronic latent image by depositing a toner material onto the latent image creating a positive electronic toner image and transferring in registration the electronic toner image to the same side of the same support member to which the overlay toner image was transferred producing said integrated toner image.

Claim 12

The method of claims 8 or 9 including removing the support member having the overlay and electronic toner images thereon and fusing said toner images to said support member.

Claim 13

The method of claims 8 or 9 wherein said photoconductive member is supported on a drum and transfer is by a transfer drum of the same size as the photoconductive drum and wherein the two drums rotate at the same tangential velocity to effect the transfer of the overlay and electronic images in registration onto the support member.

Claim 14

The method of claims 8 or 9 wherein said positive overlay image is created by light reflected from an opaque positive overlay.

Claim 15

The method of claims 8 or 9 wherein said positive overlay image is created by light transmitted through a transparent positive overlay.