Insert the appropriate cables into the appropriate ports of the printer and computer.

Go to http://www.cognitivetpg.com/Downloads_19.aspx.

Scroll down until you see the "Driver" section.

Click on the driver set that corresponds with the operating system for the computer on which the printer will be installed.

Click "Save" to save the driver set to the computer. The file downloaded is a .zip file.

Double-click on the .zip file to view the contents. Click "Extract All Files" in the upper-left corner of the window to unzip the contents to the folder of your choice.

Double-click the ".exe" file to begin the setup process.

Click on the arrow next to "Available Printers" to view a list of all available printers connected to the computer.

Click on the Advantage LX printer model. The printer model will be followed by "CD1" or "CD2." "CD1" refers to cash drawer No. 1, "CD2" refers to cash drawer No. 2, and so on.

Click on the arrow next to "Available Ports" to view a list of all available ports.

Click on the port that corresponds with the cable connections with which the printer was connected. For instance, if the printer is connected to the computer with a USB cable, select the USB port. Consult the computer's owner's manual for port (COM) labels.

Click "OK" to finish installation.