![background image](https://i.printerdoc.net/HP LaserJet 3300 Multifunction Printer series/en/HP LaserJet 3300 Multifunction Printer series_en174.png)
Unwanted lines
●
Make sure the priority input tray is in place.
●
Try cleaning the flatbed scanner. See
Cleaning the outside of the product
for instructions.
●
The photosensitive drum inside the print cartridge may have been scratched. Install a new HP
print cartridge. See
HP LaserJet print cartridges
for instructions.