Title:
カラー検出システム
Document Type and Number:
Japanese Patent JP5165818
Kind Code:
B2
Abstract:
An improved spectrophotometer for non-contact measuring of the colors of colored target areas, especially, test patches on moving printed test sheets in an unrestrained normal output path of a color printer, which test patches may be sequentially angularly illuminated with multiple different colors, with a photosensor providing electrical signals in response, the spectrophotometer having a lens system for transmitting that reflected illumination from the test patch to the photosensor with a lens magnification ratio of approximately one to one. The exemplary spectrophotometer provides non-contact color measurements of moving color target areas variably displaced therefrom within normal paper path baffle spacings, with a displacement insensitivity of at least 6 millimeters about a nominal target to spectrophotometer separation.
Inventors:
Fred F Hubble the Third
Joel Akeby
Joel Akeby
Application Number:
JP2000349812A
Publication Date:
March 21, 2013
Filing Date:
November 16, 2000
Export Citation:
Assignee:
XEROX CORPORATION
International Classes:
B41J29/46; H04N1/23; B41J2/525; G01J3/02; G01J3/46; G01J3/50; G03G15/00; G03G15/01; G03G21/00; H04N1/60
Domestic Patent References:
| JP3083462A | ||||
| JP9218097A | ||||
| JP10038693A |
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office