The Card stock paper is normally heavier than the normal paper used for printing. There are printers that accept the cardstock; therefore you can use the cardstock paper in a printer. You can use cardstock paper to print photos, scrapbooking items, greeting cards, calendars, paper dolls, certificates, and many more. The way the printer handles the cardstock is different from the normal printer paper. If you intend to use cardstock in a printer, remove all the papers on the printer's paper feed tray. Put on place the cardstock on the paper feed tray. Ensure it is in place and print the normal way.