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:
Feb. 15, 2011
Filed:
Jan. 07, 2009
Timothy Graham Bradley, Longmont, CO (US);
Larry M. Ernst, Longmont, CO (US);
Timothy Graham Bradley, Longmont, CO (US);
Larry M. Ernst, Longmont, CO (US);
Infoprint Solutions Company, LLC, Boulder, CO (US);
Abstract
A method, system, and manufacture for adjusting electrostatic charges in a laser printer. A charge is applied to a photoconductor drum surface to create a dark voltage. An image area of the photoconductor drum is exposed with a printhead using a defined energy level to discharge the charge from the image area. An exposure voltage of the photoconductor drum is measured after the image area has been exposed. A first optimization is performed to determine an adjusted dark voltage and an adjusted energy level based on the measured exposure voltage and the dark voltage and the energy levels applied to the photoconductor drum. An applicator voltage is applied to an applicator that applies toner to the exposed image area of the photoconductor drum. Toner density applied to the photoconductor drum is measured and a second optimization is performed to adjust the applicator voltage to produce a target toner density.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile