Repeating smudge, which does not line up with the defects sheet Brand new printer

[Joe3]

I purchased a brand new 6510 dn, and from the first page, I had this repeating smudge on the right hand side.  I've done the cleaning from the admin menu, and printed a defects sheet, but it does not line up. 

Any ideas?

This printer has 33 copies... so maybe it needs to be broken in?

I am using all the consumables which were installed from the factory.

How it looks on a printed pageCompared to the quide

[Joe3]

It looks like my issues is exactly twice the distance of the Fuser (63mm).  Every second blotch matches that mark. Does that make any sense?

Every second mark lines up.

[gabiene]

Hi,

It could be from the black drum cartridge. I will recommend you to claim the warranty.

Gabi

[Joe3]

I called earlier today and talked to a great person in tech support that suggested the same thing and offered to send out a black drum at no charge. 

Great service!  I'll install and test when it arrives.