How do I set up the HP LaserJet Pro MFP M126a plus for the first time?

First, open the output tray extender and remove the orange tape from the printer. Lift the scanner assembly, open the toner door, and remove the foam and toner cartridge. Remove the instruction sheet, then shake the toner cartridge 5-6 times to distribute toner evenly. Remove the protective film and orange guard from the cartridge, reinsert it, and close the scanner assembly and toner door. Connect the printer to your computer using a USB cable, plug it in, and turn it on. Finally, load paper into the input tray and install the HP printer software from 123.hp.com.