I have a EPSON WF-3540 MFP. I want to use it to scan files directly to my NAS. As this device does not support scan to FTP or any other network share, I thought of using a lightweight linux device (e.g. Raspberry Pi) as a scan server. Sadly, I can't find any possiblity to initiate a scan via the front panel of my device. All tutorials (e.g. for SANE package) implicate that I have to initate the scan from GUI or CLI on the server. However this kind of contradicts the purpose of a small headless scan server.
Does anybody know how to initiate scans from the device when connected to a linux server?