Can I print from my phone or tablet without a router using the HP OfficeJet Pro 6960?

Yes, with Wi-Fi Direct you can connect your computer or mobile device such as a smartphone or tablet directly to the printer wirelessly without connecting to an existing wireless network. You might need HP software installed on your computer or mobile device to use Wi-Fi Direct, and more information is available at 123.hp.com/ojp6960. (Page 1)