Resources Contact Us Home
Method and apparatus for producing a multi-colored image in an electrophotographic system

Image Number 5 for United States Patent #5916718.

Apparatus and method in which a multi-color image, such as a standard four color image, is assembled on a medium, such as paper or film. Liquid ink contains conventional "solid" colored toner particles and also contains transparent counter ions. The conventional "solid" colored toner particles in plate to the surface of the photoreceptor while the transparent counter ions plate in the opposite direction, i.e., the transparent counter ions plate to the surface of photoreceptor in areas which are not discharged. Conventional "solid" colored toner particles plate to electrode in areas where the photoreceptor has not been discharged while transparent counter ions plate to electrode in areas discharged. This allows an apparatus and method in which the multi-color image can be assembled during a single pass of a photoreceptor without the necessity to erase and externally recharge the photoreceptor between development steps for each separate color resulting in an apparatus and method which can print multiple color images at an unrivaled speed.

  Recently Added Patents
Method of forming top electrode for capacitor and interconnection in integrated passive device (IPD)
Automated malware detection and remediation
Staining and sealing brush head and cap combination
Integration and analog to digital conversion circuit with common capacitors and operating method thereof
Interaction analyzer
Ambient presentation of surveillance data
Integrated ambient light sensor and distance sensor
  Randomly Featured Patents
Parallel processing apparatus and method capable of switching parallel and successive processing modes
Protein containing cleaning compositions
Intraocular lens device
Two-dimensional photonic crystal, and waveguide and resonator using the same
Flower pot cover
Three phase sulfur separation method with interface control
Method and apparatus for reducing repetitive motion injury risk to typist and pointer-device operators
Lithographic apparatus, integrated circuit device manufacturing method, and integrated circuit device manufactured thereby
Demonstration wind tunnel
Liquid crystal display device having spontaneous polarization and no compensating capacitors