Hewlett-packard Development Company, L.p.

Alexander James Karp

David Sabo

Christopher Sean Tanner

Eric G Nelson

James Pingel

David S Vejtasa

A sealing device includes a base member configured to attach to an ink developer unit, a sealing member having a sealing surface configured to at least one of limit an unwanted flow of ink outside of the ink developer unit and conform to an outer surface of a respective roller, and a compliant member disposed between the base member and the sealing member such that the compliant member is configured to vary a sealing force along the sealing surface of the sealing member.

Ink developer unit, and sealing device usable with ink developer unit

A developer unit usable with a liquid electrophotographic printing apparatus having a photosensitive drum includes a developer roller configured to receive ink, and to selectively engage and rotatably transfer the ink to the photosensitive drum, the developer roller configured to switch between a contact mode when the developer roller is rotating and a non-contact mode when the developer roller is not rotating, a squeegee roller selectively in contact with the developer roller, the squeegee roller configured to at least condense the received ink on the developer roller in the contact mode, and configured to be apart from the developer roller in the non-contact mode, and a cleaner roller selectively in contact with the developer roller, the cleaner roller configured to remove remaining ink from the developer roller not transferred to the photosensitive drum in the contact mode, and to be apart from the developer roller in the non-contact mode, wherein at least one of the squeegee roller, the cleaner roller and the developer roller are configured to move between the contact mode and the non-contact mode in response to a rotational state of the developer roller.

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San Diego, CA, United States of America

Alexander James Karp