Xerox Corporation

Kay E Metcalf

John F Whiting

Robert W Corbin

A low cost, high-speed device for rotating a variable thickness substrate stacks in a short distance, and with neatness and precision. The substrate stack rotating device includes a lower rotating disk and an upper rotating disk that are located in a substrate path to receive a moving substrate stack. The upper disk is driven downward such that a substrate stack is pinched between the lower and upper rotating disks. The resultant clamping force helps maintain substrate stack integrity and neatness. Once a substrate stack is clamped, one of the disks is rotated, bring the substrate stack into a desired orientation. The upper rotating disk is then released, the substrate stack beneficially moves away from the disks, and the substrate stack rotating device is ready to accept another substrate stack.

Rotating clamp for changing the orientation of a substrate stack

A dual path sheet feeder is disclosed including a dual mode sheet feeding tray for selectively delivering sheets from a sheet feeding module to either a printer processing module or to a finishing module, wherein a movable gate situated adjacent to the sheet feeding tray is provided for directing sheets along a predetermined path of travel. The movable gate is selectively positionable between a first position for directing the sheets to the processing module to produce copy sheets prior to delivering the copy sheets to the finishing module and a second position for directing the sheets directly to the finishing module to bypass the processing module to provide an insert sheet. The dual path sheet feeder is contemplated for use in conjunction with a high speed electrostatographic printing machine for providing flexible paper supply options without the additional burden of providing supplemental dedicated sheet feeding trays.

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Albion, NY, United States of America

Kay E Metcalf