What is the recommended method for cleaning the print heads of an Epson L3110?

The recommended method for cleaning the print heads of an Epson L3110 is to use the built-in print head cleaning utility found in the printer driver software. You can access this by going to your computer's printer settings, selecting the L3110, and then choosing 'Printer Properties' or 'Preferences'. Look for a 'Maintenance' or 'Utility' tab and select the 'Head Cleaning' option. You may need to run this utility 2-3 times, followed by a nozzle check after each cleaning cycle, until the print quality improves.