If your printer is leaving smudges or not properly setting toner on the page, the roller fuser pressure (JC66-02716B) may be the culprit. It's important for your Samsung printer's performance, ensuring smooth printouts without unwanted marks. This genuine Samsung component fits a variety of Samsung color and monochrome laser printers, including several models from the XPRESS series. Double-check your printer's model number to make sure this part will work with your device before purchasing.