Color reproduction apparatus

Claim 2

A multi-color electrostatic printing apparatus for reproducing copies of originals comprising a movable photoconductive member, means for producing light rays of an original and to form a series of side by side electrostatic latent images on said member as the same moves, each of which is the result of a different color rendition in the original, development means having a plurality of development units, each development unit being adapted to apply developing material having a different color for each of the latent images and operative when activated for contacting the member and developing its respective latent image according to the color effect of a unit relative to the latent image produced for the corresponding color rendition in the original, and programming means associated with the light producing means and the development units for controlling correlated activation thereof at predetermined intervals, wherein light rays of the original are produced for forming electrostatic latent images of a series before and after at least one of the development units is activated.

Claim 3

A multi-color electrostatic printing apparatus for reproducing copies of originals comprising a movable photoconductive member, means for producing a series of electrostatic latent images on said member as the same moves wherein each image is the result of a different color rendition in the original, development means having a plurality of development units, each development unit being adapted to apply developing material having a different color and operative when activated for contacting the member and developing its respective latent image moving relative thereto, means for supporting a sheet of transfer material and to move the same into contact with the member for each developed image, sheet gripping means operable for gripPing and releasing the sheet upon said sheet supporting means in a predetermined position relative to the point of contact of the member with said support means, and programming means associated with the development units and said sheet gripping means for controlling activation of the latter to release the sheet after a predetermined number of developed images have been moved into contact with the sheet.

Claim 4

A multi-color electrostatic printing apparatus for reproducing copies of originals comprising a movable photoconductive member, means for producing a series of electrostatic latent images on said member as the same moves wherein each image is the result of a different color rendition in the original, development means having a plurality of development units, each development unit being adapted to apply developing material having a different color and operative when activated for contacting the member and developing its respective latent image moving relative thereto, means for supporting a sheet of transfer material and to move the same into contact with the member for each developed image, sheet gripping means operable for gripPing and releasing the sheet upon said sheet supporting means in a predetermined position relative to the point of contact of the member with said support means, and programming means associated with the development units and said sheet gripping means for controlling activation of the latter to release the sheet after a predetermined number of developed images have been moved into contact with the sheet.

Claim 5

A multi-color electrostatic printing apparatus for reproducing copies of originals comprising a movable photoconductive member, means for producing light rays of an original and to form a closely spaced series of side by side electrostatic latent images on said member as the same moves, each of which is the result of a different color rendition in the original, development means having a plurality of development units positioned in operative alignment in the path of movement of the member, each development unit being adapted to apply developing material having a different color for each of the latent images and operative when activated for contacting the member and developing its respective latent image moving relative thereto, programming means associated with the development units for controlling activation of the same individually, and according to the order in which the images appear relative to the order in which the units are aligned with the first image being related to the first unit and so on, and transfer means for transferring the developed images onto a support material in superimposed relationship.

Claim 6

A multi-color electrostatic printing apparatus for reproducing copies of originals comprising a movable photoconductive member, means for producing light rays of an original and to form a closely spaced series of side by side electrostatic latent images on said member as the same moves, each of which is the result of a different color rendition in the original, development means having a plurality of development units positioned in operative alignment in the path of movement of the member, each development unit being adapted to apply developing material having a different color for each of the latent images and operative when activated for contacting the member and developing its respective latent image moving relative thereto, programming means associated with the development units for controlling activation of the same individually, and according to the order in which the images appear relative to the order in which the units are aligned with the first image being related to the first unit and so on, and transfer means for transferring the developed images onto a support material in superimposed relationship.

Claim 7

A multi-color electrostatic printing apparatus for reproducing copies of originals comprising a movable photoconductive member, means for producing light rays of an original and to form a series of side by side electrostatic latent images on said member as the same moves, each of which is the result of a different color rendition in the original, development means having a plurality of development units, each development unit being adapted to apply developing material having a different color for each of the latent images and operative when activated for contacting the member and developing its respective latent image moving relative thereto, transfer mechanism for transferring the developed images onto a support material in superimposed relationship, said transfer mechanism including a drum and means for gripping the support material and holding the same thereon, and programming means associated with the development units and the transfer mechanism for controlling activation of the gripping means in timed relationship to the development of the images.

Claim 8

A multi-color electrostatic printing apparatus for reproducing copies of originals comprising a movable photoconductive member, means for producing light rays of an original and to form a series of side by side electrostatic latent images on said member as the same moves, each of which is the result of a different color rendition in the original, development means having a plurality of development units, each development unit being adapted to apply developing material having a different color for each of the latent images and operative when activated for contacting the member and developing its respective latent image moving relative thereto, transfer mechanism for transferring the developed images onto a support material in superimposed relationship, said transfer mechanism including a drum and means for gripping the support material and holding the same thereon, and programming means associated with the development units and the transfer mechanism for controlling activation of the gripping means in timed relationship to the development of the images.

Claim 9

A multi-color electrostatic printing apparatus for reproducing copies of originals comprising a movable photoconductive member, means for producing light rays of an original and to form a series of electrostatic latent images on said member as the same moves, each of which is the result of a different color rendition in the original, development means having a plurality of development units, each development unit being adapted to apply developing material having a different color and operative when activated for contacting the member and developing its respective latent image moving relative thereto, support means for holding a sheet of transfer material and moving the same in a recirculating path into contact with the member, said support means including sheet gripping means operable for gripping and releasing each sheet, means for inducing an electrical bias on said support means for effecting the transfer of a developed image onto the transfer material, and programming means associated with the development units, said gripping means for controlling operation of the latter and energization of the biasing means in timed relationship to the development of the images.

Claim 10

A multi-color electrostatic printing apparatus for reproducing copies of originals comprising a movable photoconductive member, means for producing light rays of an original and to form a series of electrostatic latent images on said member as the same moves, each of which is the result of a different color rendition in the original, development means having a plurality of development units, each development unit being adapted to apply developing material having a different color and operative when activated for contacting the member and developing its respective latent image moving relative thereto, support means for holding a sheet of transfer material and moving the same in a recirculating path into contact with the member, said support means including sheet gripping means operable for gripping and releasing each sheet, means for inducing an electrical bias on said support means for effecting the transfer of a developed image onto the transfer material, and programming means associated with the development units, said gripping means for controlling operation of the latter and energization of the biasing means in timed relationship to the development of the images.