I installed a ir6020, and the machine works normally, the scanner works very well, but when I send a print, the machine don`t receive it. I installed the lpr port, and when I added the new port, I got the discovery button, the ip of the copier don`t appear, the lpr port don`t find the machine. I tried install with tcp/ip, but, the machine don`t print, too. The machine response the ping command.