Hello Leoni,
I searched our online knowledge base and found an article for black lines/smears on the page for you to review. If you are still having issues after trying these steps, I suggest that you call into our support department for assistance @ 1-800-835-6100.
There is a faint black smear printing down the centre of my pages. Can anyone help me identify what the problem is please?
I have check the imaging untis for damage but I cannot see anything wrong with them.