MX4070n dark line on mixed colors only

[bigdaddyooo]

Brand new out of the box I'm noticing a dark line in the paper path. I have replaced every drum unit with no change. The 64-1 #9 is perfect. This is strange. I have even tried another fuser with no luck. Has anyone else had this issue?

[OlliK1969]

Hi

At 1 Machine we have damage at transfer-belt
Second machine with damage transfer belt cleaner

[bigdaddyooo]

I'm using ColorPic to see %'s of CMYK. No line when Magenta is 0-5%, 5-20% slight line and 25-100% a dark line. Yet the Magenta print looks fine. I do a single color print and it's ok in magenta but when I mix another to magenta I get a line. Driving me nuts

[bigdaddyooo]

20170314_120133.jpg

[bigdaddyooo]

Well I fixed it. I had a new machine come in and I swapped out the LSU and that took care of it