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US 4,236,814 AGranted
Transport system for advancing copy sheets through tandem duplicating system
AssigneeA. B. Dick Company
InventorKenneth J. Tonkin
Life of this patent
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AssigneeA. B. Dick Company
InventorKenneth J. Tonkin
Estimating the term…
In a tandem duplicating system, a transport means conveys a copy sheet from a first printing station where an image is applied to the first side of the copy sheet to a second printing station where an image is applied to the second side of the same copy sheet utilizing a suction force for securing the copy sheet to a sheet conveyor, wherein only the image-free side of the copy sheet is contacted or engaged by the conveyor. Advancing copy sheets are delivered to a position subjacent the second printing station where means normally disposed beneath the conveyor are activated to engage the trailing edge of the copy sheet lift it to a position above the transport means and advance the trailing edge of the sheet into gripping means provided in the second printing station for advancing the copy sheet through the second printing station and applying an image to its second side.
In a duplicating system having a first print station for applying an image to a first side of a copy sheet and a second print station for applying an image to a second side of the same copy sheet, the copy sheet having a leading edge and a trailing edge, and an improved paper transport means for transporting the copy sheet from the first print station to the second print station, the first print station including a sheet-ejector for introducing the copy sheet to the transport means and the second print station including a sheet receiver for receiving the copy sheet from the transport means, the improvement comprising:
In a duplicating system having a first print station including a first imaging surface for printing one side of a copy sheet, a first impression cylinder having means for gripping and conveying the copy sheet into contact with the first imaging surface, and ejector means for thereafter ejecting the copy sheet, a second print station including a second imaging surface for printing a second side of the same copy sheet, a second impression cylinder having means for gripping and conveying the copy sheet into contact with the second imaging surface, and ejector means for thereafter ejecting the copy sheet, an improved transport means for receiving the copy sheet after it has been ejected from the ejector means of the first print station and for conveying the copy sheet to the second print station, the improvement comprising:
Dependencies are inferred from the claim text.