A:
This HP Printer is compatible with the Apple Mac OS X v 10.10 with a free full feature software and driver download from the HP web site at:
http://support.hp.com/us-en/drivers/selfservice/HP-Deskjet-2540-All-in-One-Printer-series/5295960/model/5295961#Z7_3054ICK0KGTE30AQO5O3KA30R1