[Scribus] Serious problems with digital printer

[Christoph Schäfer]

Hi all,

I have tried to get a huge scribus PDF file printed at a print shop with 
a digital printer. The file conatains a plate (965 x 965 mm) with two 
layers, some tiff files, and all text is converted to outline. The 
problem is that Acrobat's preflight check for offset printing runs fine 
but warns when checked for digital printing. The warning is about 
transparent pictures (although they are all tiffs).

The RIP (Production Manager 6.6. SP 1) for the printing machine (CAMMJET 
CJ-500) exits with a CPSI error if scribus files (PDF and EPS) are opened.

At the shop we were able to convert the scribus PDF to EPS. This EPS 
caused no problems with the RIP, but the print went wrong: Some of the 
frames I had drawn around the images were printed in grey instead of 
transparent (frame settings: colour: none, and opacity set to 0). This 
behaviour seems very strange, since all frames have exactly the same 
properties and most of them do not appear in the print, but few of the 
still show the grey background.

We have run five prints with different options and the problem is still 
there.

Has someone on this list already had similar problems?

Thanks

Christoph