The Dell 720 photo printer is a single function ink jet printer designed to handle normal printing tasks as well as photo printing at home. Setting up and installing a printer is the biggest hassle, aside from keeping it stocked with those expensive ink cartridges.
Turn on your computer and let the operating system boot fully to the desktop.
Plug the USB cable from the Dell 720 Printer into one of your computer's empty USB slots and turn on the printer by pressing the "Power" button (make sure the printer is plugged in).
Wait for the printer to warm up and the drivers to install on your computer. A screen should pop up telling you that the Dell 720 is installing. Follow the prompts and print a test page at the end to see if the installation was successful.
If nothing happens, you may need to install the driver manually with the included CD. You can also download the driver from the Dell support website.
Verify the printer is installed correctly; click "Start," then "Programs," then "Dell Printers," then "Dell Phot Printer 720."
Often when printers don't work, it is something simple. If you can't seem to make the printer work, make sure the USB cord is fully plugged in on both the printer and the computer. Restart and try again. The Dell 720 Photo printer only supports Windows 2000 and Windows XP.