Karl,
on the CD of DIPCO, you will find PDF document in folder 01, which describes proper positioning on the sheet. Please mind, that you need to position 102_105 format of color bar. I know, that Preps is offering kind of step&repeat mode for color bars, which is not OK for ImageControl. In the center of color bar, you will see triangle, this has to be positioned in the middle (left to right) of the sheet, still leaving 6mm or more space on left and right, for system to recognise paper white.
Janez
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