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:
Oct. 21, 2014

Filed:

Dec. 12, 2012
Applicant:

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

Inventors:

Jason Carl True, Lexington, KY (US);

Thad Carlton Switzer, Richmond, KY (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/553 (2013.01);
Abstract

A method for providing a page countdown for a replaceable toner cartridge according to one embodiment includes, upon detecting a toner cartridge that is out of usable toner, determining a number of pages remaining for a page countdown associated with the toner cartridge. Whether a toner sump of an imaging unit positioned to receive toner from the toner cartridge contains sufficient toner to print the number of pages remaining is also determined. If the toner sump of the imaging unit contains sufficient toner, the page countdown continues from the number of pages remaining. If the toner sump of the imaging unit does not contain sufficient toner, the number of pages remaining for the page countdown is reset based on the amount of toner available in the toner sump of the imaging unit and the page countdown continues from the reset number of pages remaining.


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