Printer Epson L456 Ubuntu 20.04 Installation Guide
The Post Show How-to Download and Install Epson L456 Driver for Ubuntu 20.04 Focal LTS GNU/Linux.
Furthermore, inside the Article you find Link to Guide on Quick-Start Scanning with Epson L456 on Ubuntu.
Epson L456 Driver Ubuntu 20.04 Installation
Download Epson L456 Printer/Scanner Drivers for Ubuntu
How-to Install Epson L456 Driver for Linux Ubuntu 20.04