I suggest this, first, to clear out all possible software confabulations:
Start - Control Panel - view Devices and Printers
click once on your icon for your printer.
Delete (with Del key) that icon for your printer.
(IF any other icons for your printer, duplicates, whatever, are there also, select each one individually, and Del it individually too.)
Restart your computer.
Then after that, configure for use of a permanent USB connection.
If after that, scanning fails identically, but printing (over USB connection) works, let me know how it turns out, please.