Xerox Corporation

Peter J Keilty

Roger Derek Masham

Jeremy Brook Lewis

Andrew Edward Taylor

James M Casella

Robert I Caley

Aspects of this disclosure describe a multi-pass printer having a photoreceptor device mounted on an axis, a developer that is arranged adjacent to the photoreceptor device and is movable between a first position and a second position, and a camming mechanism mounted on the axis that acts upon the developer to urge the developer between the first and second positions. The camming mechanism can further include a camming disc that is mounted to rotate about the axis. The camming disc can also have an outer periphery edge having a first portion defined by a first radius and a second portion defined by a second radius. The camming mechanism can also have a developer roll spacing cam having an effective radius that maintains a spacing between the developer and the photoreceptor device.

Method and apparatus for controlling multiple color developers using a camming mechanism

A developer camming apparatus connected to a developer unit, including a slide, a motor, and an encoder, wherein the encoder determines a distance a developer unit is from the photoreceptor, wherein the encoder allows the developer unit to be sufficiently close to effect application of toner to the photoreceptor from the developer unit, but also does not allow the developer unit to contact the photoreceptor during a print job.

Camming method and apparatus for controlling color developers for non-contact development

A drive mechanism including a toothed pulley and a device for retaining mesh between the teeth of the pulley and the teeth of a belt after assembly thereto. The retaining device includes a retaining member positioned adjacent a toothed section of the pulley defining a space therebetween enabling the belt to fit between the retaining member and the toothed section of the pulley when the teeth are in mesh, the space between an apex or crown of a pulley tooth and the surface of the retaining member opposite thereto being smaller than the maximum thickness of the toothed belt thereby ensuring a mesh between the teeth of the belt and pulley to provide a synchronized drive therebetween. In a particular application the drive mechanism is employed in a copy set collecting arrangement for a copy reproduction system or duplicator machine having a finishing station, the collecting arrangement including an output tray coupled to an elevator for adjusting the height of the tray in dependence on the number of copies collected, the elevator being driven by the drive mechanism.

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Welwyn Garden City, United Kingdom

Peter J Keilty