C360 horizontal magenta line on the edge

[Rugggero]

control or CLEAN?

Clean and check the difference between before and after.

[fatduke]

Potentially magenta dev unit, more than likely transfer belt

I agree, also transfer roller.

[Phil B.]

Clean and check the difference between before and after.

so you just confused CONTROL with clean?

[Synaux]

from what i can see on the tiny tiny sample is the T\belt isnt cleaning on the edge.
its either the belt or the gears that drive the belt cleaning unit.

Yup, looks like the M roller inside the belt is lopsided--note the lightness on the top...

Either that or a lack of voltage to the M unit itself?

I agree, also transfer roller.

No offense, but that does not make sense. How could a transfer roller make an impression of only one color in what looks like high saturation in one spot--and--outside the print area? I guarantee you that the tranf roller will have magenta build up on the edge, but I fail to understand how that can possibly be the the cause. That said, the K print would probably clean up with a new (or cleaned) transfer roller.

I would like to see some scanned images of some 12x18" stock (or anything 12"). Gradation, halftone, and halftone at 50% out of bypass with the guides fully extended and the stock pushed to the user-side of the machine at its limit (might run slightly skewed, but who cares).