Trying to make sense of this:
You have got two printers. Is the Kodak one on the USB port or the LPT1 port?
The Epson C70 can be used either on LPT1 or on the USB port.
It may be best to delete both printers and to then plug the Kodak in to whichever port you want to use it on. Install the software and test. Then leaving the Kodak plugged in plug the Epson to one of your USB ports and if Windows detects it follow its lead, otherwise install it and see what happens.
There is no reason I can think of why you would need to uninstall one printer to install another.