You should consider replacing a laser printer pressure roller when you start noticing recurring print defects that don't improve after wiping down internal components or using a fresh toner supply. Common signs include vertical lines, blurry patches, or light bands, especially if they appear in the same location on every page. Another indicator is repeated paper transport failures, particularly near the heating assembly. If the paper comes out tempered but ink lifts under touch, the pressure roller may have compromised its surface integrity. Over time, the rubber surface of the roller can become smoothed, pitted, or hardened, which prevents it from applying even pressure to bond the toner to the paper. Most pressure rollers last between 50,000 and 200,000 pages, depending on print volume and environmental conditions, so if your printer has reached that range and you're seeing these problems, replacement is strongly recommended. It's also wise to replace the roller when you're installing a new fuser assembly, since they work together and غلطک پرس پرینتر replacing both at once can minimize future maintenance needs. Always refer to your printer's manual for the manufacturer’s service interval and approved replacement components to ensure consistent print quality and avoid damage to other components.