All necessary apps can be found on the Google Play Store:
Required apps:
GoFormz: this is the app where forms will be filled out
PrintGo: this is the app where completed forms will be printed from
(Optional) Adobe Acrobat Reader: this app can be used to view pdfs
To begin, once removing the printer from the package, press the two gray buttons on the front of the printer to open it
To load paper, make sure the sticker is taken off the paper roll, and orient the paper so that the paper is unrolling from the bottom side of the roll
Pull a small amount of the paper over the front edge of the printer, and close the printer firmly until it clicks closed
(Optional) you can tear off the protruding paper if you want to