@Anyastarr8, Welcome to the HP Support Community!
The printer may or may not work on a mobile hotspot. Hp does not recommend connecting the printer to a hotspot.
Download the label to your phone and print using wifi-direct in absence of a wireless network.
Refer to this document - Printing with Wi-Fi Direct. The default password is 12345678.
Use the HP Smart app to print from your phone. Click here to know how.
Hope this helps! Keep me posted.
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KUMAR0307
I am an HP Employee