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Black and white reproducible pattern highlight color printing

  • US 5,568,248 A
  • Filed: 12/05/1994
  • Issued: 10/22/1996
  • Est. Priority Date: 12/05/1994
  • Status: Expired due to Fees
First Claim
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1. A reproduction method comprising printing a physical original document sheet with at least one highlight color area in a highlight color document printer, which highlight color area is a uniformly applied print color area of a color which does not copy well when said document sheet with said highlight color area is copied on a conventional black only reproduction apparatus, and also concurrently printing a black print show-through print repeating pattern superposed under said highlight print color area on said same original document sheet, which black show-through print repeating pattern is highly visible to and reproducible by said conventional black only reproduction apparatus and is not a half-tone pattern, and then copying said original document sheet on a black only reproduction apparatus to generate black print copies in which said highlight color area of said original document sheet contains on said black print copies thereof said highly visible distinguishable black print repeating pattern over said highlight color area which is visually indicative of the original color highlighting of said area.

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