I just updated my profile to show my background and familiarization with Lightroom. Over the years since LR 1, I have used both Macs and PCs with LR with several different printers including Epson, Canon and Samsung.
My biggest difficulty is try to explain things so that others can understand them so bear with me.
My problem with the color shift that I am experiencing may indeed be with a double management but if it is, it is out of my control. Let me reiterate:
Printing using the color managed by Lightroom: The paper printer/paper profile is selected and the Canon managed color is set to Color Sync - this setting BTW is set by Lightroom - but I do check it to be sure. The resulting print has a magenta color shift.
If instead I set the Printer control in Lightroom to "Managed by Printer" and then go to set-up and set the Color Matching in the Canon dialog to Canon Color Matching followed by setting the "Quality and Media" to a similar Canon paper with the proper size, the resulting print is very acceptable (matching my calibrated monitors very well). BUT if I am printing a b/w print and do not check the "Grayscale Printing" box, the resulting photo has the magenta cast.
The net result is that I have to very careful each and every time I make a print. The downside of not being able to print with the Lightroom accessed profiles is that I can not select the real paper type for either color or b/w. For example, I would like to make a sepia toned print using a preset or whatever in Lightroom but the resulting print has a pinkish cast. I could of course use the color controls in the Canon printer dialog to shift the tone but that would take a lot of tinkering and experimenting using up lots of paper.
I suspect the problem is with the Canon printer but am bothered by the conflicting good color when using Canon managed color versu the poor color for b/w using canon managed color.
Ken