Ubuntu 23.10
As Pilot6 said, you need to go to the Epson Drivers Site, search for your model and download the driver.
The drivers depend on libsane. However, in Ubuntu 23.10, the package libsane is missing. A workaround is to download and install the libsane package from another Ubuntu release. In the example below, I am using libsane from Ubuntu 23.04 (Lunar Lobster) for amd64 architecture. You also have to install libsane1 package, because libsane depends on it.
sudo apt install libsane1
wget http://mirrors.kernel.org/ubuntu/pool/universe/s/sane-backends/libsane_1.2.1-1_amd64.deb
sudo dpkg -i libsane_1.2.1-1_amd64.deb
After that, you should be able to install your drivers with Running sudo ./install.sh from within the driver's directory.
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