I have also similar problems. I have a Macintosh computer running with Mac OS X 10.6.8. To this computer I have connected an Epson scanner 2450 Photo. This scanner has worked perfectly well for me for many years. Recently the hard disk on my computer crashed, and I had to restore the contents of the hard disk to a new hard disk from a backup created with the by Apple provided backup system called “Time Machine” which generally is regarded as a very good backup system.
However, since I reinstalled all files to the new hard disk, I cannot use the Epson scanner any more. I get the following error message when I try to start the “Epson scan” program om my computer:
“Applikation Launch Failure/The application “EPSON Scan” could not be launched because of a shared library error: “
I have reinstalled the Epson Scan program. I have found a file named “Twain Source Manager.Shlb”. I have put copies of this file into the folder Macintosh HD/Epson/Epson Scan and also into the folder Users/jpalme/Library/Preferences/Epson/Epson Scan. I have also created a folder “Epson Scan” inside the folder “Epson Scan” and put “Twain Source Manager.Shlb” there. Nothing helps. Still the same error message.
Do I have to buy a new scanner, in spite of having a fully well working scanner, since I cannot get the scanner software to work anymore.