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ADJUSTABLE LOCKING SHOCK ABSORBER

IP.com Disclosure Number: IPCOM000025636D
Original Publication Date: 1986-Dec-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 57K

Publishing Venue

Xerox Disclosure Journal

Abstract

In recently developed electrophotographic printing machines, variable magnification is achieved by moving the optical assembly in a vertical direction. The optical assembly has mounted thereon a recirculating document handling system. By moving the platen having the original document disposed thereon vertically, an infinite range of enlargement and reduction may be achieved. However, the recirculating document handling system must also be moved therewith. In shipboard environments, potentially damaging vibrations and shocks are encountered by the optics module. This problem may be solved by employing a hydraulic system coupling the platen and recirculating document handling system of the optics module to the machine frame so as to provide adjustable shock absorption. In operation, when the optics drive motor is energized to change magnification, a solenoid is energized, opening a valve and allowing a cylinder to move. Once magnification is achieved, the system is de-energized and the cylinder is locked in position so as to lock the upper housing and recirculating document handling system preventing movement thereof. If movement is encountered, the hydraulic system now is capable of absorbing any vibration and shock.

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XEROX DISCLOSURE JOURNAL

ADJUSTABLE LOCKING SHOCK Proposed Classification ABSORBER U.S. c1.35513 Charles R. Brewer II Int. C1. G03g 15/00

In recently developed electrophotographic printing machines, variable magnification is achieved by moving the optical assembly in a vertical direction. The optical assembly has mounted thereon a recirculating document handling system. By moving the platen having the original document disposed thereon vertically, an infinite range of enlargement and reduction may be achieved. However, the recirculating document handling system must also be moved therewith. In shipboard environments, potentially damaging vibrations and shocks are encountered by the optics module. This problem may be solved by employing a hydraulic system coupling the platen and recirculating document handling system of the optics module to the machine frame so as to provide adjustable shock absorption. In operation, when the optics drive motor is energized to change magnification, a solenoid is energized, opening a valve and allowing a cylinder to move. Once magnification is achieved, the system is de-energized and the cylinder is locked in position so as to lock the upper housing and recirculating document handling system preventing movement thereof. If movement is encountered, the hydraulic system now is capable of absorbing any vibration and shock.

Volume 11 Number 6 November/December 1986 271

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