Xerox Corporation

William L Statt

Daniel W Costanza

Richard A Spinelli

Jacob N Kluger

Lawrence J Mason

Edwin F Glab

James G Stoffel

Richard G Ermer

In an electrostatographic reproduction machine having a charged imaging member and an optics assembly for forming a properly registered latent image on the charged imaging member, a quick and precise optics assembly realignment tool mounted removably within the machine for realigning the optics assembly, after repair or remanufacture of such optics assembly. The realignment tool includes a generally rectangular frame having four sides forming four corners, and three non-adjustable position leg members, that are formed integrally with the frame at three of the four corners for initially locating and referencing the frame relative to a reference surface within the machine. The tool also includes one adjustable position leg member mounted slidably for adjustable movement at a fourth corner for initially compensating for any runout of the reference surface, so as to achieve a properly aligned optics assembly within the machine. The tool further includes first and second adjustable position finger members mounted slidably on a first and a second, opposite sides, of the four sides, and between leg members, for firmly setting an aligned position of a second carriage of the optics assembly relative to a first carriage thereof. The first and the second adjustable position finger members, and the adjustable position leg member, are mounted slidably within a first and a second slot portions in a bottom surface of the frame. Further, the adjustable position leg member and the first and the second adjustable position finger members, each include means for firmly binding each to the frame so as to cooperatively with the non-adjustable position leg members, firmly set positions of the first and the second carriages respectively, when properly aligned, relative to the reference surface within the machine.

Electrostatographic reproduction machine including optics assembly

An electrophotographic printing system incorporates two sets of moving optical components, one on each side of a projection lens. A document on a platen is scanned by a first set of moving mirrors with the scanned image projected by a lens towards a photoreceptor. A second set of moving mirrors precesses the image onto the photoreceptor. In one embodiment, a drive system commonly drives both the object side and the image side mirrors to provide the required document scan and precess motions. In a second embodiment, the image side system is driven as a function of the photoreceptor (process) speed.

Double dual rate precession scan system

An optical scanning and illumination arrangement is provided for a document reproduction machine which includes a plurality of linear motors to drive the moving scan/illumination carriages. Each linear motor is under the control of a digital control circuit which, in turn, is under the control of a supervising circuit which maintains the status of machine operation and generates appropriate signals to control the individual digital control circuits.

Optical scanning system utilizing linear drive motors

A multimagnification mode optical system for projecting an image from an object plane to an image plane including a viewing platen, a lens, at least one reflecting surface on each of the object side and image side of the lens, the lens being mounted to move from a first position providing a first magnification to a second position providing a second magnification by simultaneously rotating and translating about a stationary lens shaft from said first position to said second position whereby the optical axis of the lens is also altered. In a specific application of the optical system the corner registration of the image at the image plane on a photosensitive surface mounted on a rotatable drum is maintained at both the first and second lens position.

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Webster, NY, United States of America

William L Statt