Interestingly, you can configure your cash drawer to open when you print a receipt for each transaction automatically. Doing this is pretty simple. First, connect the RJ12 connector cable from the cash drawer to the receipt printer. Next, go to the settings menu in your Windows 10 and select devices. Next select Printers & Scanners on the left-hand menu. Then choose the printer you’d like to configure and click on the manage button. Further, click on the Printer Properties. Once you do that, a window will open where you can select the device settings tab. Under the installable options, find the peripheral unit type and change it to ‘cash drawer’. Finally, change the ‘peripheral unit 1 and 2’ to ‘document bottom’. This enables you to keep the draw open after your receipt starts printing.