Firstly, I suggest you update your printer drivers. To do this, navigate to the manufacturer's web page, identify your printer model, select your operating system and download the latest files. After that, press Windows + Pause/Break combination, open Device Manager, locate your printer driver, right-click on its icon and select Update Driver Software. Use the Browse option to navigate to the downloaded package, select the driver and install it following the on-screen instructions. If you still have issues, reset the printer following the steps from its user manual and update Coupon Printer to the latest version. Also, make sure you have enough paper and ink to complete the printing process.