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:
Mar. 08, 2016
Filed:
Feb. 10, 2015
Lexmark International, Inc., Lexington, KY (US);
Michael Brian Bacelieri, Lexington, KY (US);
Robert Dan Bennett, III, Paris, KY (US);
Gary Allen Denton, Lexington, KY (US);
Katherine Marie Gilliam, Lexington, KY (US);
Elliott Vincent Jernigan, Lexington, KY (US);
Matthew Lee Rogers, Lexington, KY (US);
Dominique Renee Rowe, Lexington, KY (US);
Courtney Harrison Soale, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A developer unit for a dual component development electrophotographic image forming device according to one example embodiment includes a housing having a reservoir for storing a developer mix that includes toner and magnetic carrier beads. An auger is positioned to convey developer mix in the reservoir toward the outer surface of a magnetic roll on a front of the housing. A ledge on an inner surface of the housing extends axially with respect to the magnetic roll along a front of the reservoir. The ledge is positioned upstream from a trim bar and downstream from a pickup pole of the magnetic roll with respect to the operative rotational direction of the magnetic roll. The ledge has a concave curved inner surface that is open to the reservoir and extends from near the trim bar to near a front side of the auger.