A:Answer Yes this HP Envy 7858 supports Wireless printing, as well as Ethernet/Lan, and Direct Connect with USB Cable. As for the latest Wi-Fi Specs (802-11-AX or Wi-Fi-6), this Printer is a previous generation behind, and does Not support Wi-Fi-6. But it does support 802.11-B/G/N.. Also, this printer does support Fax capabilities, and has a Telephone-Jack/Port on the back. However, you need to have a Landline, either older Telco/Ma-Bell or an IP-Phone such as Ooma or Vonage. As for Printing from your Older Computer; without knowing the version of the OS that is currently running on your PC, it is difficult to say. But, this Envy 7858 has Drivers for Win-11, Win-10, Win-8x and Windows-7-SP1..