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:
Jul. 09, 2013
Filed:
Sep. 29, 2008
Robert Reed Booth, Lexington, KY (US);
Kerry Leland Embry, Midway, KY (US);
Paul Wesley Etter, Lexington, KY (US);
Claudia Alexandra Marin, Lexington, KY (US);
Gregorio Balandran, Broken Arrow, OK (US);
Robert Reed Booth, Lexington, KY (US);
Kerry Leland Embry, Midway, KY (US);
Paul Wesley Etter, Lexington, KY (US);
Claudia Alexandra Marin, Lexington, KY (US);
Gregorio Balandran, Broken Arrow, OK (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A system for adjusting a selected operating parameter of an image forming device to control white vector based on selected environmental conditions includes an image forming station having a photoconductive surface with a latent image formed by discharged areas leaving non-discharged areas different from the discharged areas, a sensor mechanism for measuring selected environmental conditions of dry-bulb temperature and relative humidity, a control mechanism for reading the sensor mechanism to adjust the voltage bias of a charging unit by an offset applied to the charging unit based on a wet-bulb temperature value so as to minimize white vector without enabling onset of development of toner background on non-discharged areas, and a memory connected to and accessible by the control mechanism and storing a lookup table of a list of wet-bulb temperature values related to measured dry-bulb temperature and relative humidity values and correlated to a list of voltage bias offsets.