First, check to make sure that your printer is on and the power cable is not loose or damaged. If this checks out, next check to see what mode your printer is set to. Some users will receive this message because their printer is set to a low-resolution or draft mode, which will cause this error as the coupons must be printed at a resolution of at least 300-dpi in order to be legible enough to be scanned.
If neither of these resolved the error message you received and you have an older computer, it is likely that you do not have enough processing memory to properly print the hi-resolution coupons.