Vertical white line — Printing quality issue

What does Vertical white line mean?

Printed pages show vertical white lines. This is often caused by contamination on the LSU window or an issue with the toner cartridge itself.

• LSU window is contaminated with dust or debris
• Toner cartridge issue

Click steps to track your progress.

1. 1

   Carefully clean the LSU window, if accessible, following the printer's user guide.

2. 2

   If cleaning does not resolve the issue, replace the toner cartridge.

3. 3

   Ensure no other foreign material is inside the printer affecting the print path.