Why does my printer NOT respond to the command

[rtrg]

I am using 3 DELL 8100#s. All three have a HP g95,k80,v40, BROTHER 1240,1440 installed. #1 and 2 work fine. #3 does not. NONE of the printers attached respond to the PRINT command. All are recognized and all appear in the PRINTERS screen. Any ideas? I am stumped. I have swapped printers, towers, reinstalled all, from list and web site. Nothing worked. "FOUND NEW HARDWARE,READY TO USE" is present. The tower is fully functional. reeltoreelguy@gmail.com Thank you.

 

[aford10]

Try connecting only 1 printer. Make sure it's selected as the default printer.

Check the device manager to see if there is a conflict on the device.