Smear on 3880

[mrcmrc]

Hi guys,
I print with my Epson 3880 on A2 sheets, usually I don't print near the edges of the page; now I have a caption at 1,5 cm from the outside border. This caption is on bottom right of the page, so it's printed on the final part of the print (top left). The problem is that it's printed smeared (see the jpeg). But not the entire line from border to border, just the bottom right corner. I tried also printing just four crop marks and only the one positioned at bottom right get smeared.

Any help?

Thanks!