Imageprograf ipf765 has overlapping lines

[Inferno]

I just got a used IPF765 printer. I tested it out on 20# roll stock and it printed good. Maybe a little heavy on the ink but I know how to control that. 

Problem is, I bought some canvas and when I print on it I have an overlap line. 

I can't find a way to adjust this. 

I do have the paper setting set to heaviest (thickest) media and it didn't make a difference. 
I did the head alignment and that didn't change things. 

Any ideas?

[Sonya1]

Hi Inferno,

The imagePROGRAF iPF765 is considered a CAD printer, it is not designed to print on canvas/Fine Art media. The iPF765 is designed to print on most Coated Papers, Photographic Glossy Paper, Sign/Banner/Display Media. Click here to view a list of supported media. I hope this is helpful.

[Inferno]

According to the link provided, the Prograf does support a few different canvas materials. 
This one is comparable to what I'm trying to print on. 
https://downloads.canon.com/nw/pdfs/product-showcase/bus-consumables/MDS-Water-Resistant-Canvas-400g...