A format code for setup HP printer online may be found at 123hp/setup. This is usually completed by an experienced senior technician. HP Support includes 123 HP com setup, driver downloads for windows and mac, HP Printer wireless setup (all platform), scan doctor setup, and HP Smart app download. All HP Printer problems can be solved according to 123 HP com setup. This is the most secure and convenient way to set up an HP printer online. It follows the instructions at 123.hp.com/setup.