Spgprints B.v.

Peter Klein Meuleman

Sjef Kusters

A printing system includes a print module with printheads covering a printing width in x-direction, and a substrate holder for supporting a substrate. The substrate and print module are movable relative to each other in y-direction. Each printhead is positioned spaced at a first distance from the substrate holder in z-direction. A detection mechanism is provided for detecting obstructions on the substrate holder. A control unit is provided for stopping further relative movement in the y-direction between the substrate and the print module when an obstruction has been detected. The detection mechanism includes individually movable sub-detection elements that together cover the printing width, where those elements are designed to have a detection signal send out to the control unit when one of the elements gets moved out of a starting position by an obstruction trying to pass it.

Printing system having individually movable sub-detector elements for print head protection

A printing system comprises a sub-frame (), a print module () with printheads (), a first support unit () that is connected to the sub-frame (), in particular movable in a displacement direction (z) relative to the sub-frame, a substrate holder () for supporting a substrate (), and a positioning mechanism for moving the print module relative to the first support unit to and from a print position. A set of positioning parts (-) and positioning references (-) is provided that form part of or are connected to the print module () respectively the sub-frame (). The positioning parts (-) are engageable with corresponding ones of the positioning references (-) for aligning the print module () relative to the sub-frame () when moved into its print position. The positioning mechanism comprises one or more four-bar linkage mechanisms () acting between the print module () and the first support unit ().

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Venlo, Netherlands

Peter Klein Meuleman