Lexmark International, Inc.

Christopher Hayden Noffsinger

Gregory Alan Cavill

Daniel Lee Thomas

Edward Alan Rush

Donald Eugene Proffitt

Richard Gordon Boyatt, Iii

Gregory Daniel Creteau

Michael Alan Gist

Matthew Russell Smither

A photoconductor unit for an electrophotographic image forming device according to one example embodiment includes a housing and a photoconductive drum rotatably mounted on the housing. A cam is mounted on the housing and has a cam surface that is positioned to contact a corresponding locating surface. The cam surface has a variable height in an axial direction of the photoconductive drum such that as a position of the cam changes relative to the housing, the photoconductive drum shifts in the axial direction relative to the locating surface.

Axially shifting a photoconductive drum using a cam

An imaging device includes a frame plate having an opening and first and second camming profiles about the opening. A removable fuser assembly includes a housing having front and back plates, a mounting shaft extending from the front plate to the back plate of the housing, a pin member on a first end of the mounting shaft having a pair of segments engaging with the first and second camming profiles on the frame plate, and a handle on a second end of the mounting shaft pivotable at a predetermined angle and moving the mounting shaft therewith. Pivoting the handle in a first direction causes the segments to travel along the camming profiles, locking the fuser assembly onto the imaging device. Pivoting the handle in a second direction causes the segments to align with the opening and the fuser assembly to be unlocked with the imaging device allowing removal thereof.

Positive locking mechanism for a removable fuser

A photoconductor unit for an electrophotographic image forming device according to one example embodiment includes a housing and a photoconductive drum rotatably mounted on the housing. The photoconductive drum includes a drive coupler that is positioned to mate with a corresponding drive coupler of the image forming device to receive rotational and axial force therefrom for rotating and axially biasing the photoconductive drum when the photoconductor unit is installed in the image forming device. A wear member is positioned to receive frictional contact from a portion of the photoconductive drum in a direction of the axial bias on the photoconductive drum such that as the photoconductive drum rotates, the frictional contact on the wear member gradually wears away the wear member in the direction of the axial bias on the photoconductive drum thereby gradually shifting the photoconductive drum axially in the direction of the axial bias.

Axially shifting a photoconductive drum using a wear surface

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Lexington, KY, United States of America

Christopher Hayden Noffsinger