How do I fix a printer that is printing with streaks of black ink?

1. Check your ink cartridges for obstruction or dried up ink.
2. Clean printheads and check nozzles for blockage.
3. Clean and align all printer rollers.
4. Check if you have the appropriate paper type and printer settings for the document you're attempting to print.
5. Ensure that all cartridges are properly installed and any covers are correctly closed.
6. Restart the print cycle and check for any improvements.