I'm having trouble scanning via WiFi with my Epson WF-3720 and need help troubleshooting. At home, I have three Epson multi-function printers. A WF-2750 I've had for several years and has worked fine. A WorkForrce 845 and WF-3720 I recently picked up, are used but new to me and I'm getting them set up. I'm having some trouble scanning with the WF-3720 over WiFi. All three are installed and seen in cups.
The printers:
WF 845 (print & scan over WiFi)
WF 2750 (print & scan over WiFi)
WF 3720 (print over WiFi, scan only via USB connection)
From Epson's site, I've DL'd and installed imagescan-bundle-debian-10-3.65.0.x64.deb without error. Xsane, simple-scan and imagescan do not detect the 3720, but do find the 845 & 2750 without issue. The 3720 will scan, but only when I connect to my desktop via USB. The scans are great, no issue with USB. If I have all three powered up and connected to WiFi, simple-scan finds the 845 and 2750, but not the 3720. The past couple of days I have since powered off the two and only the 3720 is powered on.
My desktop box:
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$ uname -a
Linux RDesktopDeb 4.19.0-17-amd64 #1 SMP Debian 4.19.194-2 (2021-06-21) x86_64 GNU/Linux
$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 10 (buster)
Release: 10
Codename: buster
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sudo -s lpinfo -v | grep -P '://'
sudo -s sane-find-scanner
sudo -s scanimage -L
I'm guessing that it's something with sane not being able to find it for some reason over WiFi. I'm stumped...and don't know what else to look for. Any help would be appreciated.
Thanks,
Rich