Ubuntu 22.04 and epsonscan2: scanner detected, but I still can't scan

Epson DS-6500. USB scanner (not networked). Works on Widows 10, not on Ubuntu 22.04. I've installed epsonscan2 by downloading from here and extracting to directory epson' that has the proper permissions. (Otherwise I get an error, as described here .) $ sudo chown -Rv _apt:root epson/ $ sudo chmod -Rv 700 epson/ $ sudo su $ cd epson $ apt install ./epsonscan2_6.7.61.0-1_amd64.deb $ shudown -r now Using the simple-scan gui, it finds the scanner, but when I try to scan, it runs for a while and then pops up, Failed to scan. Unable to connect to scanner. $ epsonscan2 -l === List of available devic

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