To be able to add your printer to your computer you must ensure that you have all the things necessary for the operation and that would be: software CD, the printer with the USB cables attached (power cord and USB cable which connects to the computer) and a computer with a supported operating system like: Microsoft Windows, Apple Mac OS or a Linux distribution.
First step is to power on the printer using the POWER ON button then connect the USB cable only to the printer. Insert the software CD in the CD/DVD-ROM and wait for the autorun to start. When a message pops out, click the setup installation option and follow the on-screen instructions. When the software asks you to plug in the printer in the USB port of your computer, do it while the printer is powered on. From that step the setup will install all its necessary files and support software required by the printer for a good functionality. The setup CD will also install support software like HP Touchsmart & Control Center from where you will be able to print, modify the scanned pictures (in case it's a printer with scanning support) and perform maintenance operations.