There are essentially no limits to substrate shape or material.
As soon as a substrate arrives on the printing table, it is scanned for edges and contours. Other features may be used to identify the positions of substrates that are hard to align mechanically: coins, flat injection-molded parts with irregular contours or asymmetrically shaped panes of glass. For round substrates, the contour has to be supplemented with an eccentric feature in order to clearly determine the angular position.
Different substrates can also be automatically printed in parallel as long as they have been taught in. In other words, substrates with different geometries and features can all be loaded on the printing table and printed in a single print cycle. The system will flag non-taught-in substrates as defective and refuse to print them, preventing misprints caused by loading incorrect parts.
Digital Image Alignment is available for all Thieme digital printing solutions, which includes various combinations of inks and printheads.