Epson CX5800F won't print thru computer

Strange problem: when I first installed Win 7 the printer was able to print thru native Win 7 drivers; I installed the Epson Win7 drivers from Epson web site and the printer worked for about a month. Now in the last week, the printer suddenly won't print through the computer...copy/print works; print through sd card works, but even a test page won't print from the computer.
The printer works fine when I connect it to a Toshiba laptop with XP installed.
Tearing my hair out...have tried:
1. Change usb cables - change usb slots
P.S. Hooked up an old Epson Stylus 860 via usb cable to same desktop computer and it prints fine. Thing must be 10 years old but my much newer CX5800F just won't work. Very frustrating.
2. Uninstall reinstall drivers and software
3. Tried restore points from a few weeks ago - no joy
4. Stop and restart print spool
Any ideas of what else I could try?? Scanner and scanner software work fine. Printer works fine with XP.

Did you delete the documents that caused the printer to not print? I had an issue where I could print even after restarting the print spooler.

Try this if you did not delete those files:

Delete contents of the C:\Windows\System32\spool\printers folder
Restart your computer and install printer again

Windows 7 Help Tips and How-to: print spooler service is not running

Tried this 3 or 4 times and it did not work work for me.
Thanks, raf051888, that was a good idea, and may help someone else.
I'm going to give up...been working on this for 2 or 3 days. I think it's a lost cause.

You sure? I'm willing to help as long as it takes. Did you actually have items in that folder?

Yes, there were items in the folder.
The only thing I have done to the computer in the way of major changes is: uninstalled Avast and installed Microsoft Security Essentials and have started having my old Vista installation vhd file automatically "attach" at boot up.
Could either of those events have affected the printer drivers?? ....or communication through usb (although my Epson 860 is connected via usb and printing fine).
I made a backup and am ready to try anything. This is an expensive piece of equipment and I refuse to replace it; will go back to Vista if I have to.
Thanks for your offer to help.

As long as there are not in items in the folder: C:\Windows\System32\spool\printers folder. Proceed with the following steps:

1. Uninstall the printer. This is done by going to Devices and Printers, then right click on the specific printer and hit remove device.
2. Uninstall the drivers. This is done in the Devices and Printers, then clicking Print Server properties at the top. [See attached screenshot] Then remove the drivers for that printer.
Printer Issue.jpg
3. Restart, then re-install the printer. Do that by installing the drivers first.

@raf051888
Did all that, and still does not work. I did get an animation with ink levels showing that it was printing but it does not actually print.

What exactly are you trying to print?

What I am trying to print:
The test page in properties, a few paragraphs from these message boards copied and pasted to Notepad, Microsoft Word, Write, one of my camera pictures to Microsoft Photo, a picture from Adobe Photoshop Elements, a couple of pages from a walkthrough from a game in Notepad, then in Microsoft 2007 Word and more....

Did you get any errors when you re-installed the printer?