Resources Contact Us Home
Automatic setup apparatus for an electrophotographic printing machine

Image Number 5 for United States Patent #4647184.

An automated process and apparatus is provided for establishing the basic xerographic operating parameters for an electrophotographic printing machine. The document scanning means is used in a setup mode to generate test patches of varying density on the machine photoreceptor. The levels are measured and compared to present values stored in a digital controller memory until convergence is obtained along three separate points on the PIDC curve. The controller adjusts the system parameters of charge circuit, developer bias and system exposure in an iterative process and corresponding to the photo-induced discharge curve for the particular machine.

  Recently Added Patents
Semiconductor device and method for controlling the same
Selective delivery of molecules into cells or marking of cells in diseased tissue regions using environmentally sensitive transmembrane peptide
Method and system for controlled communication between applications
Reusable pulse oximeter probe and disposable bandage apparatii
High linearity mixer using a 33% duty cycle clock for unwanted harmonic suppression
Program sending controlling apparatus, program sending controlling method and program
Electronic device and application program switching method thereof
  Randomly Featured Patents
Display stand
Chorion biopsy instrument
Method and circuit for storing and providing historical physiological data
Versatile pocket-size container
Plaque or the like
Amalgam carrier and dispenser
Use of alkanoyl L-carnitines for the therapeutical treatment of chronic inflammatory bowel disease
Balanced brake assembly having coincident piston application
Thin film deposition apparatus with an expanding thermal plasma source and method for depositing a thin film using the same