Abstract: The preferred embodiment of the invention disclosed herein is an address printer including roller means for feeding a workpiece, for example, an envelope, on which printed material is to be duplicated, liquid application roller means for applying a copying liquid on the workpiece being fed and delivery means for delivering a master card on which the printed material, for example, an address, to be printed is contained. Both the workpiece and the master card are delivered to print rollers which print the printed material from the master card on the workpiece. Also included is a drive shaft for rotating the roller means and also an operating shaft arranged to operate the liquid application roller means and the delivery means. Coupling means adjustably connects the drive shaft to the operating shaft whereby the operation of the liquid application roller means and delivery means can be adjusted relative to the feed roller means so that the location of the print position on the workpiece can be adjusted.

Abstract: A duplicating machine for duplicating printed material from selected master cards onto a workpiece comprises a master card feed station including a feed device for feeding cards to a print station and a workpiece feed station including a device for feeding workpieces to a moistening apparatus and to the print station. Also provided is a card reading device for detecting predetermined information characteristics stored on an adjacent master card in a stack and for determining whether the printed material on that card is to be duplicated. If the material is to be duplicated the reading device provides a signal to a control system that actuates the workpiece feed device for feeding the workpiece to the print station.