Vertical lines on a laser printer
- Dirty corona wire (Brother): slide the green tab on the drum back and forth a few times.
- Damaged drum: lines or marks repeating at the same spot point to the drum (drum units).
- Leaking or damaged toner cartridge: try a new cartridge.
- Scanner glass (copies only): if lines show only on copies, clean the glass strip on the left of the scanner.
Smudges that rub off
The fuser isn't fusing the toner: check the paper type setting. If it continues, the fuser may need service.
Streaks on an inkjet
Run a head cleaning and nozzle check; replace old or third-party cartridges that keep clogging.
Find replacement toner · contact us
Related guides
- Why Is My Printer Printing Blank Pages?
- Why Is My Printer Printing Faded or Light? (Laser & Inkjet Fixes)
- Best All-in-One Printer for High-Volume Printing
- Best All-in-One Printer for Printing Books & Manuscripts
- Best Black & White Laser Printer for Double-Sided Printing
- Best Black & White Laser Printer for High-Volume Printing
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