Print head assembly, screen printing system and method

A print head assembly (119) for printing a print medium (PM) onto a workpiece (W) through a printing screen (105) which includes a screen element having a pattern of printing apertures therein, the assembly comprising: first and second carriages (141) which are in use movably supported on respective...

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Bibliographische Detailangaben
1. Verfasser:	WILLSHERE JEFFREY RICHARD
Format:	Patent
Sprache:	eng
Schlagworte:	CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS COLOUR PRINTING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY LINING MACHINES MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PERFORMING OPERATIONS PRINTED CIRCUITS PRINTING PRINTING MACHINES OR PRESSES PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A print head assembly (119) for printing a print medium (PM) onto a workpiece (W) through a printing screen (105) which includes a screen element having a pattern of printing apertures therein, the assembly comprising: first and second carriages (141) which are in use movably supported on respective ones of first and second guides (117); and first and second print head units (143, 145) which are mounted in adjacent, parallel relation to and between the carriages, wherein the print head units each comprise first and second print head actuators which are mounted on respective ones of the carriages, and a support member (151) which extends between the print head actuators, such as to be movable vertically thereby, and in use supports a printing element.