Troubleshooting Streaks and Smudges from Pressure Rollers > 자유게시판

Inconsistent markings on your prints are frustrating and unprofessional and can make even important documents look sloppy. One frequently missed cause is the pressure roller, which plays a critical role the fusion of toner particles. When this component becomes worn, dirty, or misaligned, it can produce uneven streaks that appear across your prints.

The pressure roller is paired with the fusing assembly inside the heat module. As the sheet travels through the system, the roller maintains uniform contact to securely bind the powder to the substrate. If the roller surface is worn down, polished, خرابی غلطک پرس پرینتر or contaminated, it will lose proper grip with the paper. This leads to incomplete bonding zones, resulting in faint streaks that smear or streaks that follow the direction of the paper feed.

To troubleshoot the issue, begin by shutting off and removing power from the unit. Wait for the fuser to reach room temperature before exposing the roller compartment. Visually examine the fuser roller for signs of wear including fissures, grooves, or a glossy sheen. A polished texture is a clear sign that the roller has sustained prolonged heat exposure and degraded its friction properties. Even small amounts of toner residue can cause streaking, so lightly clean the roller with a non-abrasive fabric dipped in high-purity ethanol. Avoid household wipes or rough cloths as they can permanently degrade the roller.

If the problem persists after cleaning, the roller may be beyond its service life. Most pressure rollers have a rated capacity, often up to 100,000 sheets, depending on the manufacturing spec. If your printer has approached its maximum cycle count, replacement is likely needed. Only install a OEM-certified or high quality compatible roller. Budget clones may not meet the temperature and pressure tolerances required and can worsen print quality.

Also ensure the roller is securely mounted and calibrated. Sometimes, during toner replacement, the fuser assembly can be loosely reinstalled. Consult the user guide for guidance on proper alignment. Double-check that all connectors and clips are engaged.

Lastly, consider your paper type. Using thick, glossy, or recycled paper that is not compatible with your model can exacerbate roller wear. Over time, this can accelerate wear. Use only approved media grades.

If you’ve serviced, checked, and installed a new unit but streaks persist, the issue may lie elsewhere—such as the thermal fuse or ink cartridge—but the heat roller is a top common cause. Addressing it early can prevent expensive service calls and ensure consistently professional output.