Well...

If your printed canvas (from that screengrab) was printed as expected with that large white border with no distortion or cropping, I cannot see how the printer/software would be doing something wrong and dumping ink beyond the canvas.

What I can tell you from my experience with IPF printers is that the vacuum draws the ink vapors from the overspray through those holes, so the holes immediately beside the borders of the most used width can get dirty and wet with ink very quickly and should be cleaned periodically (2 or 3 times a week on my case).

That is normal behavior.

One thing I can suggest right off the bat: accurately measure the actual width of your roll!  If your page width is defined as 24 inches and the paper is really 23 and 7/8 inches, you'll have more borderless overspray than you expect.  Note that you'll always have some overspray if expansion is enabled in the driver when you are printing borderless: that's by design (by the printer/driver not Qimage).  You can't get a true borderless print without some overspray past the edges of the paper because paper loading mechanisms are not accurate enough to get true borderless without the head printing slightly past the edges.  That said, I've encountered rolls cut shorter than their advertised width more often than I would expect.  Even with some sheet papers, I've had users report that they measure the paper and it's a bit short on one side.

One thing is for certain, however: this cannot be a QU problem (or any printing software problem for that matter).  QU, like any software that uses your Canon driver, is bound by the specifications of the driver.  So if QU is printing past the page, the driver is telling it to.

Regards,
Mike

Hey Mike would it matter if the roll size is larger? For instance the 44 inch is bigger 1/16. What setting would I change to see in qimage or driver settings?

Cheers,

Tom