Comment 1 for bug 2048433

simple-scan -d gives
[+10.76s] DEBUG: scanner.vala:348: sane_get_devices () -> SANE_STATUS_GOOD
[+10.76s] DEBUG: scanner.vala:374: Device: name="escl:https://192.168.1.73:443" vendor="Epson" model="WF-7710 Series" type="platen,adf scanner"
[+10.76s] DEBUG: scanner.vala:374: Device: name="airscan:e0:EPSON WF-7710 Series" vendor="eSCL" model="EPSON WF-7710 Series" type="ip=192.168.1.73"
[+61.34s] DEBUG: simple-scan.vala:1820: Requesting scan at 300 dpi from device 'airscan:e0:EPSON WF-7710 Series'
[+61.34s] DEBUG: scanner.vala:1778: Scanner.scan ("airscan:e0:EPSON WF-7710 Series", dpi=300, scan_mode=ScanMode.GRAY, depth=2, type=adf, side=front, paper_width=2100, paper_height=2970, brightness=-11, contrast=10, delay=0ms)
[+61.34s] DEBUG: scanner.vala:863: Processing request
[+61.35s] DEBUG: scanner.vala:924: sane_open ("airscan:e0:EPSON WF-7710 Series") -> SANE_STATUS_GOOD

The first entry was requested (escl:https://192.168.1.73:443), but the second entry was obviously taken instead; and "type" for that device was discovered as an IP address, though in the request "type" is shown correctly as "adf".
It may be that "adf" is being ignored, and that the scan is actually assuming a use of 'platen'?

At least twice later in the output there are entries of the form
[+87.21s] DEBUG: simple-scan.vala:1669: Unable to find colord device airscan:e0:EPSON WF-7710 Series: property match 'Serial'='sane:airscan:e0:EPSON WF-7710 Series' does not exist