Dell is very good about putting in checks so people cannot update this firmware with the OEM firmware. I found this out on other printers. The printer is now useless. They also like to make it so that hardware they don't support, don't work. So I would be careful about hacking the firmware. Why don't you try sharing the printer on a PC using Appletalk? I was able to get this work for several schools I did some labor contracts for.