Lexmark International, Inc.

Robert Christopher Sbert

Matthew Lee Rogers

Gary Allen Denton

Michael David Maul

Keith Seaman

Jarrett Clark Gayne

Mark Doerre

Katherine Marie Gilliam

Michael Brian Bacelieri

Courtney Harrison Soale

Robert Dan Bennett, Iii

Elliott Vincent Jernigan

Dominique Renee Rowe

Brad Edward Mattingly

Thomas Wilbur Blanck

A developer unit for a dual component development electrophotographic image forming device includes a housing having a reservoir for storing a developer mix that includes toner and magnetic carrier beads. An axial sealing rib projects from an inner side of the housing toward the outer surface of a sleeve of a magnetic roll. The axial sealing rib extends along an axial length of the sleeve. A distal end of the axial sealing rib is positioned in close proximity to and spaced from the outer surface of the sleeve. The axial sealing rib is positioned to impede the flow of developer mix in the reservoir in a direction counter to an operative rotational direction of the sleeve.

Sealing ribs for a developer unit of a dual component development electrophotographic image forming device

A doctor blade assembly for an electrophotographic printer comprises a first bracket having a first width dimension and a first height dimension, a second bracket having a second width dimension and a second height dimension, a doctor blade disposed between the front bracket and the rear bracket, the doctor blade having a cantilever length, the cantilever length varying from a first length at a first location and a second length at a second location moving along the width dimensions.

Assembly for achieving uniform doctor blade force

Growing community of inventors

Winchester, KY, United States of America

Robert Christopher Sbert