Hi there! My name is***** am a computer professional with over 15 years of experience with both Mac and Windows computers, phones, tablets, and printers. It would be my pleasure to assist you with this. I'll need to ask a few questions in order to best help you.
Can you tell me what you're operating system is please? If you're not sure, please click this link and tell me what you see:
Have you ever been able to print with this printer or is this the first time that you've tried connecting to this computer?
Using the usb printing cable, is the large flat end plugged into a usb port on your computer and the smaller end plugged into the printer?
Thank you for that information. Have you upgraded to a new Operating System on the computer lately? If so, you may need to install a more recent printer driver that includes support for that operating system. Is the large flat end of the usb printer cable plugged into a usb port on your computer and the smaller end plugged into the printer?