Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Full color copying machine










Image Number 7 for United States Patent #5204729.

A full color copying machine which includes intermediate transfer medium whereon toner images having respective color components, formed on a photoreceptor are transferred to form one color toner image, and a screen filter disposed so as to be freely inserted or removed in or from a path of exposure light, which filters the exposure light for exposing the photoreceptor into a pattern of lines. A plurality of color toner images obtained by executing a plurality of copying processes based on a plurality of exposures applied to an original document are superposed on the intermediate transfer medium to form a color toner image. The copying machine further includes a screen mode for inserting a screen filter into a path of exposure light and a normal mode for removing the screen filter from the path of exposure light. Thus, exposures intended for low density components and high density components in an original document image are respectively performed by the use of the different modes, or they are respectively performed by changing setting conditions of the screen filter in the screen mode. With these arrangements, efficient application of the exposure device and high quality of the copied images can be achieved.








 
 
  Recently Added Patents
Beaconing and superframe structure for millimeter wave wireless technologies
Nut
Radio frequency power delivery system
Display apparatus and control method thereof
System and method for enhanced artificial bandwidth expansion
Electronic device with embedded antenna
Integrated emergency medical database system
  Randomly Featured Patents
Hydraulic valve actuation systems and methods to provide variable lift for one or more engine air valves
Vibration damping superabsorbent composites
Method for making reaction products of phosgene and dihydric phenol
Apparatus and methods for measurement system calibration
Apparatus for controlling ignition timing for internal combustion engine
Non-invasive calibration and categorization of individuals for subsequent non-invasive detection of biological compounds
Optical processor
Multi-stage process for removing CO.sub.2 relative to hydrogen from syngas streams
Cloth with magnet
Wall mounted button panel