I'm attempting to print on Canson Rag Photographie paper using the "Other Fine Art Paper 1" print setting recommended by Canson and the Canon printer will only let me print with "Art Paper Margin 30 or 35". That's a lot more margins than I want to print with. Why does Canon force you to use such wide margins with these papers?
To avoid having the print head strike the paper.
Is there any work around.
You mean, other than getting a Pro-1000 with its vacuum system?* You can always tell the Pro-1 that you're using a media type that does not require the 30mm top and bottom margins, but then (1) you risk head strikes; (2) depending on exactly what you tell it, you may get 'photo' black ink instead of matte black ink; and (3) you'd probably need a new, custom-made ICC profile. FWIW, for example, IIRC if you tell the printer you're printing on Canon PM-101 Photo Paper Pro Premium Matte (which is 210 gsm and 12 mil), it requires the large top and bottom margins; but if you tell the printer you're printing on Canon MP-101 Matte Photo Paper (which is 170 gsm and 8.5 mil), it does not.
*AFAIK, this same issue with heavier 'art' papers, but not with typical coated photo papers like glossy and luster, exists with pretty much all of Canon's semi-recent 13-inch printers have, including the Pro-1, Pro-10, Pro-100, Pro 9500, Pro 9500 Mk. II, Pro 9000, and Pro 9000 Mk. II. Paper is fed in portrait orientation, and the top and bottom margins must be at least 30mm (1.18 inch), and the side margins must be at least 3.4mm (0.13 inch) on most size papers or 0.25 inch on letter-size paper. So for example, on letter-size 'art' paper, you can print a maximum 8.0x8.6 inch image on the 8.5x11.0 inch sheet; and on 13x19 inch 'art' paper, you can print an image area of 12.7x16.6 inches.