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:
Nov. 16, 2004
Filed:
Jul. 31, 2003
Philip Scot Carter, Lexington, KY (US);
William Keith Richardson, Salvisa, KY (US);
Jason Carl True, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
Toner transfer in an imaging device having a developer roller ( ) that applies toner to a photoconductive roller is determined by counting pels ( ) and by counting operating cycles ( ). Additionally in the embodiment, various device factors including darkness setting and type of toner are also applied to the totals. An adjustment factor, stored in a toner cartridge memory, is originally substantially one and may be adjusted based on subsequent knowledge or observations of the results. A page count of pages imaged is also used dependently as a second basis for amount of toner transferred.