Canon Ix6850 Strange vertical pattern HELP!

May 8, 2021
Recently I have been getting this strange mottled effect in my prints. Mostly a vertical strip nearer the right side that continues all the way through... sometimes left side...sometimes all over. One thing that is constant is if it starts in one area it continues in the same area until the print is finished. Find pics attached of the issue. Maybe some one has come up against this before.

I have done tons of cleans and alignments, gone though buckets of ink and paper trying to resolve this. I have also removed the head and cleaned it with alcohol with no success. 90% of the print is perfect so is it the ink?
Is it the head.
Or something else?
Is my printer minced?

As you can see in the pics the area left and right is pure.

Any help would be greatly appreciated


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