Patent · US Expired

Highlight color printing machine

US5208636A · kind A · utility

20Cited by
19References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 23, 1992
Grant dateMay 4, 1993
Priority date
Expiry dateMar 23, 2012

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/0163
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A printing machine in which two electrostatic latent images are recorded on a photoconductive member. One of the latent images is a charged area latent image with the other image being a discharged area latent image. A magnetic developer unit develops the charged area latent image with black toner particles. A non-magnetic developer unit develops the discharged area latent image with toner particles of a color other than black. The toner particles from both latent images are transferred substantially simultaneously to a sheet and fused thereto forming a color high lighted document.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.