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
Military award attachment method and device
Method and apparatus for efficiently routing packets across disparate networks
Method and system for connecting a telephone call to a third party
Protective device for portable electronic device
Token authentication
Method and device for image guided dynamic radiation treatment of prostate cancer and other pelvic lesions
Solar collector devices and methods of assembly
  Randomly Featured Patents
Method for using data regarding manufacturing procedures integrated circuits (IC's) have undergone, such as repairs, to select procedures the IC's will undergo, such as additional repairs
Repositionable infant entertainment device
Fluoroscopic imager with frame-filling apparatus
Method of assembling a time-correlated medical event database
Method for advancing and retracting a target
Polymer core optical wave-guide and fabrication method thereof
Metal-insulator-metal capacitors
Method and apparatus for providing human readable signature with digital signature
Floating water toy
Adaptive braking system with special control for slippery surfaces