Color problems with clc 3220 c1

Hello,
first time poster, I live in Croatia and a newbie at printing.

On some jobs, bitmaps mostly, I get a blueing few inches at the right side of print. As if I gave a cooling filter to that part of the print.

Service guy shakes his head, and preparation is allways the same, apart from some bitmaps sent by customers.

Drums are new, and problem existed before new drums also.

Anyone had similar problems?

Boris