I am trying to connect. I am trying to connect Brother MFC 820 CW scanner to the PC.I tried USB

Question

I am trying to connect Brother MFC 820 CW scanner to the PC.I tried USB cable, which doesnt fit and there's no other optional cable entries to suit USB. however in the front of the achine there are different size and shape "wholes" ( sorry am not technical at all, cold I use one of them to connect the scanner to PC and what type of cable would I need- could you pass the exact info, please? regardsamk