If its windows right click on myComputer & select properties. Then finding device manager would be a good start. Maybe use the computers help to find the event viewer logs. What kind of computer is it with all these usb ports ? Thats a lot of them.

First I'd go to www.fixyourownprinter.com and check out all the information there on your Epson. Epsons are not highly rated as they waste too much ink and clog far too easily. With the changes in Epson ink formulations to make it difficult for generic ink suppliers, the clogging gets worse. That website has a link to cleaning supplies that do work with no damage to your machine. You might check out UTube for instructions on making an external waste ink collector before you get the dreaded "end of service life" error message. With Epsons, prevention is everything.

Just to let this move farther down in the que, doesn't need to be at the top.

My Officejet came with the "HP Solution Center". When launched, it presents options to scan to either a pdf or jpg. What scanning software are you trying to use? What happens when you try to use it? Is there an error message?