I have completed a 4-color drum test and observe a cyan spot on all four pages every 4.9". The drum test information says that if there is a spot on all four pages it is most likely not a drum causing the problem. Just in case, though, I pulled out each drum to check for a knick somewhere. I didn't see any visually, but I know that sometimes they can be small so I'm not totally discounting that it could be a drum.
Assuming it's not a drum, what causes a spot repeating every 4.9 inches?
I can put in a tech support call, but if it's user replaceable it's easier for me to just put it in.
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