Hello **** Marius - Roma
The driver on Server 2019 reported as "Microsoft PWG Raster Class Driver" is likely due to the server using a generic or universal print driver for compatibility of print management. This generic driver simplifies printer sharing on the server but may not provide access to all the advanced features of Epson printer.
In contrast, when you connect the same Epson printer to a Windows 10 computer using the installation CD provided by Epson, the setup process installs the manufacturer-specific "EPSON WF-2840 Series" driver, offering a more customized printing experience.
You could download the specific Epson driver from the Epson website and install on the server.
Best regards,
Karlie Weng