A simple printer repair that may be causing you many problems is that of the ink cartridge. You may receive an error warning that the ink cartridge is not installed correctly. Make sure that the very thin piece of film that covers the new cartridge as been fully removed.
Before making any type of repairs to your printer, find out what is recommended in the printer's owner's manual. Printer repair tips and troubleshooting is available there, but also on the company's website if you no longer have the manual for the printer available.