But only if:
1. The postcard and fliers are resistant to the temperature used to fix the toner.
2. It has a straight feeder.
If no help comes here, it's time to ask the shop what they recommend.
Trying to print my own promo codes onto mass produced pre printed postcards & fliers and having a lot of trouble. need a printer with flat/straight feeder (so postcard won't bend.) with ink that will dry dark and wont smear. My cannon mx860 ink goes on light and smears even on a matte side of a pre printed postcard. Anyone successfully done this before and have tips on postcard, printer, ink combination? Or other tips? I don't want to spend the time putting individual stickers on each postcard with promo codes.