Hello. Welcome to Just Answer. Please allow me to assist you with your question today. I am John, I will do my very best to help you solve this problem.
Could you please explain your issue a little bit more? Do you have another scanner in addition to the Epson 420?
Are you trying to scan and print wirelessly? Are you able to print wirelessly at least?What's the OS of your computer? (www.whatsmyos.com)