banding?

I do not know if the name is this (or if it is other). Job in Win XP,
epson 2100, original inks. Printing in A3+ I find an anomalous
shading in horizontal after 4/5 cm from the first line of the sheet. I
have tried with large, small immages, one level, tif, emptying the
memory….
I print the file as is and no-color managment. I have installed the
last driver epson, I printed with another 2100 and the problem is the
same. Banding is at 4,5 cm from the edge of the film.
I tried in A4 and the problem is slightly less evident.
What can I do?

-- 
damiano
www.damianobianca.it
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