HP Officejet 4215 Not Printing
Ensure that the ink cartridges are inserted into the respective slots. Check the power connection of the printer. Do not establish the power connection using a surge protector as it may cause power fluctuations. Remove the cartridges from the HP Officejet 4215 printer and check for ink clogs and damages on them. If there are any ink clogs on the cartridge, wipe it using a lint-free cloth dipped in distilled water or glass cleaner. Replace the cartridge with a new one if it is damaged. Ensure that the paper tray is loaded with suitable sheets.