Epson Printer problem. My printer will not print.?

Hi I have an (EPSON STYLUS DX7450) Printer witch I brought a few years back and only used it twice and since then the printer has been setting in a box.

I decided to get out my printer and start putting it to good use to print out some documents and stuff, however when I hooked up my printer & connected it to my computer, the low ink light was flashing, so I took out the old ink cartridges they seemed to be full of ink but I still went out and got some new ink cartridges.

So I put the new ink cartridges in my printer and switched on my printer. I notice that the low ink light was still on so I ignore it thinking that it will probably go off as I've just installed new ink cartridges.

I printed an image from the Internet and it printed wharf the image and then came up with an error message. So I printed a photo from my computer this time, and it does the same thing, prints wharf an image and then comes up with an error.

When I print out word documents I get blank pages out of the printer.

I have installed the printer correctly and I have inserted the cartridges in correctly.

Does anybody know what the problem could be?

I'm guessing that there could be a blockage somewhere but not sure.

Thanks...