Resources Contact Us Home
Confidential document reproduction method and apparatus

Image Number 5 for United States Patent #4739377.

A reproduction method and apparatus provides for the secure reproduction of confidential documents that include a machine readable code or indicia that is preferably invisible. The reproductions are also provided with a machine readable code to provide security against the making of reproductions from copies from originals. The method and apparatus of the invention comprises a multicolor development station reproduction apparatus wherein one or more color development stations are employed to reproduce the visual portions of the original document. The invisible encoded portions of the document are electronically "read" from the original and reproduced in the same reproduction apparatus with a developer station having transparent toner particles incorporating an ultraviolet fluorescent ink or composition.

  Recently Added Patents
Analog to digital converter with increased sub-range resolution
Carrier or transport strip
Method for selective deposition of a semiconductor material
Gestures for presentation of different views of a system diagram
Thermoplastic resin composition
Method for generating codewords
HYR1 as a target for active and passive immunization against Candida
  Randomly Featured Patents
Gelatin coating composition and hard gelatin capsule
Snoop cache memory control system and method
Methods for selectively detecting perinuclear anti-neutrophil cytoplasmic antibody of ulcerative colitis or primary sclerosing cholangitis
Rotating disk cleaning assembly apparatus and method for an ink jet print head with fixed gutter
Vision control panels for displaying discrete images observable from one side of the panel and method of making
Argatroban preparations for ophthalmic use
Automatic cooker having a card-type controller for controlling cooking conditions according to cooking data stored in a removable control card
Method of making a dynamic random access memory device utilizing chemical mechanical polishing
System information updates in LTE
Reflective piano keyboard scanner