I was quoted $11.99 for 1 year (I think?, maybe 2?). Wasn't listening too carefully as I did not intend to get a warranty for a $12 out of pocket purchase. The employee also said that the coverage would be for up to the price before the trade-in credit so $70 (approx.). She did not say that meant that Staples would replace the printer outright - only cover up to $70 credit (probably towards the purchase of a new printer) and I'm not sure that you could get any of that back as cash...
Years ago, I had a warranty for a printer that stopped working. Do not recall all of the details but essentially the actual coverage that they offered was not even worth my while. Learned my lesson.
Charge $1.25 in QC.
Varies from province to province.