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公开(公告)号：GB2206308B
公开(公告)日：1991-11-27
申请号：GB8715013
申请日：1987-06-26
Applicant: XEROX CORP
Inventor： THOMPSON PHILIP ROGER , ADELL
IPC: B65H23/038 , G03G15/00
Abstract: A web-steering mechanism, particularly for the endless belt of a xerographic copier, uses two rolls to hold the belt under tension. An idler roll is designed to rotate about an axis which is at a small angle to a tilt axis of the idler roll assembly. Small tilting movements of the idler roll assembly, under the control of a servo-motor are effective to alter the angle at which the web enters and/or leaves the roll, to cause the web to walk along the tilted roll.
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