GNU/Linux Arch Epson WF-7820/WF-7830/WF-7840 Driver Setup – Step-by-step Guide
How to Download and Install Epson WF-7820/WF-7830/WF-7840 Printer/Scanner Driver on Arch GNU/Linux desktop – Step by step Tutorial.
And to Install Epson WF-7820/WF-7830/WF-7840 Printer on Arch you need to Setup the Proprietary Driver.
Finally, to achieve the Setup follow the included instructions on How to Add WF-7820/WF-7830/WF-7840 Printer and Get Started Scanning & Faxing on Arch.

1. Launching Shell Emulator
Open a Terminal window
(Press “Enter” to Execute Commands).
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