Preview system for an electrophotographic printing machine

Claim 2

An electrophotographic printing machine for forming an edited copy of an original document, including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means for editing the electrostatic latent image by adding or deleting information from the electrostatic latent image so that the copy differs from the original document; and means, operatively associated with said sensing means, for displaying the electrical video image of the edited original document to provide a preview of the edited copy.

Claim 3

A printing machine according to claim 1, further including means for depositing marking particles on the electrostatic latent image to form a powder image on said photoconductive member.

Claim 4

An electrophotographic printing machine for forming an edited copy of an original document, including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means, operatively associated with said sensing means, for displaying the electrical video image; means for editing the electrostatic latent image so that the copy differs from the original document; means for depositing marking particles on the electrostatic latent image to form a powder image on said photoconductive member; and means, operatively associated with said sensing means, for controlling said depositing means to regulate the contrast of the copy formed in the printing machine.

Claim 5

An electrophotographic printing machine for forming an edited copy of an original document, including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means, operatively associated with said sensing means, for displaying the electrical video image; means for editing the electrostatic latent image so that the copy differs from the original document; means for depositing marking particles on the electrostatic latent image to form a powder image on said photoconductive member; and means, operatively associated with said sensing means, for controlling said depositing means to regulate the contrast of the copy formed in the printing machine.

Claim 6

A printing machine according to claim 3, further including means for dispensing marking particles into said depositing means.

Claim 7

A printing machine according to claim 4, further including means, operatively associated with said sensing means, for regulating said dispensing means to regulate the discharge of marking particles into said depositing means.

Claim 8

An electrophotographic printing machine for forming an edited copy of an original document including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means, operatively associated with said sensing means, for displaying the electrical video image; means for editing the electrostatic latent image so that the copy differs from the original document; and means, operatively associated with said editing means, for controlling said charging means to regulate the voltage level on said photoconductive member, thereby adjusting the contrast of the copy formed by the printing machine.

Claim 9

An electrophotographic printing machine for forming an edited copy of an original document including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means, operatively associated with said sensing means, for displaying the electrical video image; means for editing the electrostatic latent image so that the copy differs from the original document; and means, operatively associated with said editing means, for controlling said charging means to regulate the voltage level on said photoconductive member, thereby adjusting the contrast of the copy formed by the printing machine.

Claim 10

An electrophotographic printing machine for forming an edited copy of an original document, including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means, operatively associated with said sensing means, for displaying the electrical video image; means for editing the electrostatic latent image so that the copy differs from the original document; and means, operatively associated with said editing means, for controlling said forming means to regulate the intensity of the light image projected onto the charged portion of said photoconductive member, thereby adjusting the contrast of the copy formed in the printing machine.

Claim 11

An electrophotographic printing machine for forming an edited copy of an original document, including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means, operatively associated with said sensing means, for displaying the electrical video image; means for editing the electrostatic latent image so that the copy differs from the original document; and means, operatively associated with said editing means, for controlling said forming means to regulate the intensity of the light image projected onto the charged portion of said photoconductive member, thereby adjusting the contrast of the copy formed in the printing machine.

Claim 12

A printing machine according to claim 7, further including means, operatively associated with said editing means, for controlling said forming means to regulate the size of the light image projected onto the charged portion of said photoconductive member, thereby adjusting the magnification of the copy formed in the printing machine.

Claim 13

An electrophotographic printing machine for forming an edited copy of an original document including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means, operatively associated with said sensing means, for displaying the electrical video image; means for editing the electrostatic latent image so that the copy differs from the original document; and means, operatively associated with said editing means, for controlling said forming means to regulate the position of the light image projected onto the charged portion of said photoconductive member, thereby adjusting the shift of the image reproduced on the copy by the printing machine.

Claim 14

An electrophotographic printing machine for forming an edited copy of an original document including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means, operatively associated with said sensing means, for displaying the electrical video image; means for editing the electrostatic latent image so that the copy differs from the original document; and means, operatively associated with said editing means, for controlling said forming means to regulate the position of the light image projected onto the charged portion of said photoconductive member, thereby adjusting the shift of the image reproduced on the copy by the printing machine.

Claim 15

An electrophotographic printing machine for forming an edited copy of an original document, including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means, operatively associated with said sensing means, for displaying the electrical video image; means for editing the electrostatic latent image so that the copy differs from the original document; means for depositing marking particles on the electrostatic latent image to form a powder image on said photoconductive member; and means, operatively associated with said editing means, for deleting selected areas of the electrostatic latent image recorded on said photoconductive member.

Claim 16

An electrophotographic printing machine for forming an edited copy of an original document, including: a photoconductive member; means for charging at least a portion of said photoconductive member; means for sensing an optical image and generating an electrical video image in response thereto; means for forming a light image of the original document, said forming means projecting the light image of the original document onto said sensing means to produce an electrical video image thereof, and said forming means projecting the light image of the original document onto the charged portion of said photoconductive member to record an electrostatic latent image of the original document thereon; means, operatively associated with said sensing means, for displaying the electrical video image; means for editing the electrostatic latent image so that the copy differs from the original document; means for depositing marking particles on the electrostatic latent image to form a powder image on said photoconductive member; and means, operatively associated with said editing means, for deleting selected areas of the electrostatic latent image recorded on said photoconductive member.

Claim 17

A printing machine according to claim 10, wherein forming means projects at least two light images of the original document onto the charged portion of said photoconductive member to record a first electrostatic latent image and a second electrostatic latent image on said photoconductive member.

Claim 18

A printing machine according to claim 11, wherein said deleting means deletes one region from the first electrostatic latent image recorded on said photoconductive member to form a first edited electrostatic latent image and the other region from the second electrostatic latent image recorded on said photoconductive member to form a second edited electrostatic latent image.

Claim 19

A printing machine according to claim 12, wherein said depositing means develops the first edited electrostatic latent image with marking particles of a first color and said depositing means develops the second edited electrostatic latent image with marking particles of a second color different from the first color.

Claim 20

A printing machine according to claim 10, wherein said sensing means includes at least a charge coupled device.

Claim 21

A printing machine according to claim 14, wherein said displaying means includes at least a cathode ray tube.

Claim 22

A printing machine according to claim 14, wherein said displaying means includes at least a liquid crystal display.

Claim 23

A printing machine according to claim 10, further including a plurality of processing stations for assisting in producing the copy of the original document from the electrostatic latent image recorded on said photoconductive member.

Claim 24

A printing machine according to claim 17, further including, means for controlling at least one of said plurality of processing stations to produce an adjusted copy of the original document.