Usually all that happens when a printer hasn't been used for a long while is that the print heads clog up. Cleaning the heads multiple time, until the problem clears, is all that is needed. (I think my record so far is a dozen 'deep cleaning' cycles before everything was back to normal, so don't expect instant success!).
The 'official' path to finding the head cleaning utility (i.e. the way that the manufacturer's manual tells you to do it) can vary a bit between printers but the following way should be universal for Windows 10 users (and probably much the same for other versions of Windows):
Click the 'Start' button and then the 'Settings' cogwheel.
Click on 'Devices' and then om 'Printers and scanners'.
Click on your printer model and then on 'Manage'.
Click 'Printer properties' and then on the 'Maintenance' tab.
You should see a 'Cleaning' option there and, quite possibly, a 'Deep cleaning' one too.
Running the 'Deep cleaning' one (if available) a few times will hopefully clear any problems. (Use the 'Nozzle check' or 'Print a test page' option to check).