Patent · US Expired

Digital color copying machine comprising a test mode for making a color adjustment

US5182638A · kind A · utility

9Cited by
12References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 3, 1989
Grant dateJan 26, 1993
Priority date
Expiry dateNov 3, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/6077
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A digital color copying machine comprising a test mode is disclosed. In the test mode, image data corresponding to a partial area of an original document indicated is stored in a RAM, and thereafter, the image data stored in the RAM is read out repeatedly, and plural test images for which the color correction is made with different color balances respectively are formed as mosaic monitor images on a recording medium. Then, one of plural test images is selected, and a copy of document having a color balance of the selected test image is produced. The state of the selected color balance is displayed on a display section.

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