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:
May. 01, 2001

Filed:

Sep. 09, 1999
Applicant:
Inventors:

Quintin T. Phillips, Boise, ID (US);

Joseph L. Burquist, Boise, ID (US);

Mary B. Baumunk, Boise, ID (US);

Assignee:

Hewlett-Packard Company, Palo Alto, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/500 ; G03G 2/100 ;
U.S. Cl.
CPC ...
G03G 1/500 ; G03G 2/100 ;
Abstract

New consumables installed in printing devices sometimes must print several pages to “condition” the consumable before use. This “conditioning” is required to allow various components to reach optimal condition for printing. The present invention seeks to ameliorate the situation of changes in a consumable affecting the print quality by modifying the printing behavior based on measurements made on the consumable or on the history of the consumable which is installed. If necessary, the new consumable is pre-conditioned before additional page are printed. Pre-conditioning is accomplished by printing either several test pages or by developing several images and subsequently cleaning these images into the waste toner hopper.


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