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. 18, 2017
Filed:
Mar. 02, 2016
Lexmark International, Inc., Lexington, KY (US);
Michael Brian Bacelieri, Lexington, KY (US);
Robert Dan Bennett, III, Paris, KY (US);
Jenny Marie Berens, Winchester, KY (US);
Mark Leo Doerre, Lexington, KY (US);
Courtney Harrison Soale, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A developer unit according to one example embodiment includes a housing having a reservoir for storing a developer mix that includes toner and magnetic carrier beads. A magnetic roll is mounted on the housing. An outer surface of a sleeve of the magnetic roll is positioned to carry the developer mix from the reservoir through a front portion of the magnetic roll that is exposed from the reservoir to permit transfer of toner from the outer surface of the sleeve to a photoconductive drum and back to the reservoir as the sleeve rotates in an operative rotational direction. An air vent is positioned along a rear portion of the magnetic roll for exiting air in the reservoir from the housing. An entire opening of the air vent is positioned vertically higher than the rotational axis of the sleeve when the developer unit is in an operative orientation.