That looks exactly, like a problem I got a few months ago, only it was in the black station. Tech changed the whole Developerhousing, as it turned out, it probably was the magrolls behind the donor rolls that malfunction(do you spell it like that

?, the black donor rolls was dirty 5-7 cm inboard.
Try look at your donorrolls, for the magenta and yellow station, are they "dirty", then you might have the same problem.... maybe