IPF6400SE Track Marks

[MakerspaceAlex]

My large format Canon IPF6400SE is regularly leaving black 'track marks' down the edges of my prints (pictured). I suspect it is residual ink on the print head but I'm am struggling to resolve the issue. 

Please can some advise? If I need to get in there and clean the print head or rollers could someone link me to some relevant instructions?

Many thanks!

Alex

[doteyam]

l would highly suggest heading over to YouTube and searching "how to clean a pf-05 printhead with water" it is pretty easy to clean a printhead.