There is a
manual listed for download on the Canon Europe site, I don't have time to read it.
From your original post I inferred you wanted to print point of sales graphics for your shop. You should look also at the iPF8400S, which has 8 inks and is known to be about equal to the eight-ink Epson 9800 and 9880 which were recently the industry standards for both reasonably accurate photo imagery and for nozzle clogs.
The 8400se is a CMYK + red printer. It has both photo black and matte black inks, so I assume it could print on any media, but the results might not be up to fully professional standards for photo imagery. It is probably better at being colorful than at being photographically excellent.
If you're at a consumer level on your canvas prints, the 8400se results may be well within the range suitable for typical consumer jpeg files, but pros may not be impressed.
When a new printer comes out there's always a period of confusion about its capabilities and potential problems. It's best to let the dust settle before buying.