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

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https://bugs.launchpad.net/bugs/2048433

Title:
  scanning from ADF on Epson WF-7710 has page offset

Status in simple-scan package in Ubuntu:
  New

Bug description:
  Scanning from the ADF on my Epson WF-7710 produces images with a left margin 
about 4 times as large as when scanning from the flatbed, so that the 
right-hand side of the page is lost.  
  Top and bottom margins are handled correctly.
  The scanner is connected via the local ethernet.

  Memory tells me that it used to scan ok from the ADF, and that the
  problem may have started sometime in 2023 - but memory is terribly
  fallible ...

  $ lsb_release -rd
  Description:  Ubuntu 22.04.3 LTS
  Release:      22.04

  Synaptic gives the package version as 42.0-1, the latest available.

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