If you're still confused, here's a method which should work with all printers (assuming that you've got a computer running Windows):
Go to 'Devices and Printers'. (With most versions of Windows you can get there simply via clicking on the Start button. Sometimes you might need to go via 'Control Panel'). Right-click on the icon for your printer and select 'Printer Properties'. Click the 'Maintenance' tab and you'll find the cleaning options.