I bought an IGT Triple Double Stars 3-reel that didn't have a printer in it. I installed an Ithaca 850 printer and connected the 10-pin Molex connector to the NETPLEX Printer socket on the backplane board. I have done both key and clear chip to the machine and when I try to enable/disable the printer in the configuration menus, the display immediately goes to a "Configuring NETPLEX screen, then flashes back to say "Printer disabled" again. The printer shows no signs of getting power, even when doing the paper load and advance procedure. Not sure what I am doing wrong.