Thank you for your question. I amCustomerand I look forward to helping you with your issue today.
May I know the operating system you are using? Is it Windows 7?
How do you connect the printer to the computer? Using USB cable?
S H E F I N
Have you recently changed any wireless settings or router?
Do you have a printer USB cable with you?
Since you have changed the wireless network, please setup the new one on your printer by following the instructions in the video below.