Resources Contact Us Home
Method of setting color copying conditions

Image Number 8 for United States Patent #4860059.

A method of setting the copying conditions of a color copying machine includes the steps of scanning a test chart having density patterns in three primary colors, to detect three color components of the light reflected from the test chart, based on which three color exposures are obtained. The test chart is scanned again to make a color copy thereof, and the color copy is scanned to detect three color components of the light reflected therefrom, based on which three color densities are obtained. Relationships between the three color exposures and the three color densities are obtained for the three colors. Based on the relationships, three primary color filters are adjusted to regulate three color components of the light passed therethrough, thereby controlling three color exposures.

  Recently Added Patents
Methods and systems for automated backups and recovery on multi-os platforms using controller-based snapshots
Process for recovering and recycling an acid catalyst
Quaternary chalcogenide wafers
Automated synchronization of design features in disparate code components using type differencing
Method and system for accomplishing user equipment purge
Method and system for monitoring service quality in a mobile node
Motor control system, motor control device, and brushless motor
  Randomly Featured Patents
Method and apparatus for dynamical system analysis
Apparatus and method for laying out wireless cell, and recording medium for programs achieving the same
Wide field of view and high speed scanning microscopy
Electronic musical apparatus for reproducing received music content
Method and device with DVD and HTML control environments
Camera unit incoporating program script scanner
Gate turn-off thyristor
Router template guide alignment system and method
Indirect viewing device
Base station and method for vertical tilt antenna beam sweeping