hardware failure - How to fix my laser printer failing to print certain areas? - Super User
Laser Printer Print Quality Problems - YouTube
Brother laser printer leaving black smudges all over pages. Any idea how to fix? I tried cleaning everything inside but still prints the same : r/ printers
Color Laserjet M254dw prints 'dirty' pages w/ colors even when printing only B&W pages? : r/printers
Fix Brother Printer Leaving Black Marks, Smudges and dots on Paper