How do I fix print quality issues with vertical lines?

1. Check for Media: Ensure the correct print media is being loaded.
2. Check for Clogged Nozzles: Check for clogged nozzles on the printhead.
3. Clean Printhead: Clean the printhead if nozzles are clogged.
4. Check the print terrain: Adjust terrain of the printhead to ensure proper media contact.
5. Check Launcher Bar: Ensure the launcher bar is correctly positioned.
6. Check Alignment: Adjust printhead alignment to ensure the address position is correct.
7. Check Overhead Tension: Adjust the tension of the overhead rail to ensure media is secure.
8. Check Printer Drivers/Settings: Ensure the correct printer drivers and settings are being used.