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.

Date of Patent:
Mar. 27, 2012

Filed:

Dec. 16, 2008
Applicants:

Albert Munn Carter, Jr., Richmond, KY (US);

Gary Allen Denton, Lexington, KY (US);

John William Kietzman, Lexington, KY (US);

Inventors:

Albert Munn Carter, Jr., Richmond, KY (US);

Gary Allen Denton, Lexington, KY (US);

John William Kietzman, Lexington, KY (US);

Assignee:

Lexmark International, Inc., Lexington, KY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present disclosure relates to a method, system and apparatus for calibrating toner measurement in an image forming device. A toner patch is deposited onto a control surface, the toner patch reflecting light in a plurality of wavelengths in the infrared spectrum. A toner patch sensor emits light at the plurality of wavelengths in the infrared spectrum onto the toner patch. The amount of incident light reflected from the toner patch at the plurality of wavelengths from the emitted light is measured, and used to generate measured signals indicative of the reflectivity of the toner patch. An operating parameter of the image forming device is adjusted based upon the measured signals.


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