Are you seeing dotted black lines running vertically down your printout? This is because the pinwheels, which help move the sheet along, are running back over the sheet with wet ink.
You can find out more in our blog post on Preventing Roller Marks, which can be summarised in 4 steps:
Clean the pin feed wheels by running a piece of cardboard along with the runners
Widen the clearance between the sheet and the rollers by selecting "Prevent paper abrasion" in the printer settings
Dry out the paper
If you have read the blog post below and still can't resolve this, get in touch with us at firstname.lastname@example.org or