Epson Stylus CX4300

Manjaro recognizes the printer but doesn’t have a driver for it. I only want to use the scanner because the ink is very expensive. I am using Skanlite for my Epson L3050 printer.

What i think you need is install this:
https://aur.archlinux.org/packages/epson-inkjet-printer-escpr/

pamac build epson-inkjet-printer-escpr

For scan see this
https://wiki.archlinux.org/index.php/SANE

Need to install imagescan package.

pamac install imagescan

epson-inkjet-printer-escpr is installed.
Will install the imagescan package.

According to http://www.sane-project.org/lists/sane-backends-external.html#S-UTSUSHI I need to install iscan and iscan-plugin-cx4400.
I found iscan-plugin-cx4400 here https://github.com/longlene/clx/blob/master/media-gfx/iscan-plugin-cx4400/iscan-plugin-cx4400-2.1.0.ebuild but I don’t know what to do with the file.