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










Image Number 5 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
Identification of biomarkers in biological samples and methods of using same
Cooler
Voltage regulator structure that is operationally stable for both low and high capacitive loads
Interface circuit
Digital broadcasting system and method of processing data in digital broadcasting system
Nestable shallow container
Systems and methods for detailed error reporting in data storage systems
  Randomly Featured Patents
Breathable, hydrolyzable porous film
Stepping motor
Apparatus for collecting the amniotic fluid from the uterus
Method of making bifocal lens blanks
Connection component for a respirator product
Method and apparatus for taking samples from a groundwater monitoring site
Current measuring apparatus and method
Preparation of ultrapure polymeric articles
Rafter tool
Information transmitting and receiving method and corresponding transmitter and receiver