The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 1999
Filed:
Dec. 29, 1997
Matthias H Regelsberger, Rochester, NY (US);
David E Hockey, Brockport, NY (US);
Jeffrey C Blood, Webster, NY (US);
Kevin D Lofftus, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An electrostatographic recording apparatus and method wherein a primary charger establishes a uniform electrostatic charge on an electrophotoconductive image recording member in accordance with a first operating parameter. A recording device imagewise modulates the charge on the image recording member to form electrostatic latent images in accordance with a second operating parameter and also forms a developable process control patch. A development station develops the electrostatic latent images and the control patch on the image recording member with toner in accordance with a third operating parameter. A replenishment device provides toner to the development station at a controlled rate in accordance with a replenishment signal. A sensor senses density of the control patch developed by the development station; and a controller is responsive to density of the control patch and provides adjustments to the first, second and third operating parameters and controls a reference signal used to generate the replenishment signal as a function of a parameter related to one of the first, second or third operating parameters. Preferably the controller controls the reference signal as a function of the parameter related to the first operating parameter, primary voltage setpoint.