Sheet feeding or delivering – Feeding – With means to align sheet
Patent
1992-09-04
1993-12-28
Dayoan, D. Glenn
Sheet feeding or delivering
Feeding
With means to align sheet
B65H 702
Patent
active
052732746
ABSTRACT:
A sheet feeding and lateral registration system, including feed rollers (41, 42) for feeding sheets (50) in a process direction and registration apparatus (52, 53) for registering each sheet in a direction laterally of the process direction. The registration apparatus includes a shifting system (53) for laterally shifting a carriage (52) on which the feed rollers are mounted. A single edge sensor (57) is arranged to provide a signal on detecting the presence of a sheet, and a control controls the lateral shifting system in response to that signal. The control is operated such that if the sheet (50) is not detected by the sensor (57) on initial entry of the sheet into the feed rollers, then the shifting system (53) is activated to move the feed rollers laterally towards the sensor until the sheet is detected by the sensor, whereupon the lateral movement is stopped. However, if the sheet is detected by that sensor on initial entry of the sheet into the system, then the shifting system is first activated to move the feed rollers laterally away from the sensor until the sensor no longer detects the sheet, and then the shifting system is reverse activated to laterally move the feed rollers back towards the sensor until the sheet is again detected by the sensor.
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Theobald Paul
Thomson Michael B.
Dayoan D. Glenn
Milef Boris
Xerox Corporation
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