Many Windows PC users don't rely on a printer connected to their machine via USB. Instead they'll use a device located on a network, or perhaps as many machines now feature Wi-Fi connectivity, the printer will be connected to their home network and they'll use that to print. If this is the case, you'll need to find and connect to the device through Windows before you can use it. Here's how to find and add a printer in Windows 7.
From the Start menu, select Control Panel.
Scroll down to the Hardware & Sound section and then select View devices and printers.
At the top click Add a printer. Now you'll be asked to confirm whether it's a Local printer (although not those connected via USB as Windows automatically installs these when they're connected to your machine) or a Network, wireless or Bluetooth printer (although they'll need to be connected to the same network as your PC).
If you've selected Network, wireless or Bluetooth printer, Windows will now scan your network and display a list of devices. Select the printer you want and click next. If it's not listed, then press the printer I want wasn't listed and you'll be given the ability to add the device by using its name or IP address, then press Next.
Windows will now begin connecting to the printer. You'll be alerted once it has been successfully connected. Press Next. Now you'll be given the opportunity to set the device as your default printer, and print a test page. Press Finish to complete the action. The printer will now appear in your device list displayed when you select View devices and printers from the Control panel.
If you selected Local printer, you'll be asked to specify which printer port you're using, you'll also have the opportunity to create a new port here. Press Next.
Now choose the printer manufacturer and model number from the list presented and press Next. You'll be asked to name the printer, and select Next. The printer will now be installed and once complete will appear in your device list.