Auto Doc Feeder on Epson WF-4720 will not work in 20.04 but it works in 20.10 and Fedora 33

Flatbed scanner worked. Not the auto document feeder.

This is with the Document Scanner program. (is it a rename of Simple Scan?) Simple Scan 3.36.4-1

Other than that, the Distro is Fabulous!! Keep up the good work.
Thanks! John

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: simple-scan 3.36.4-1
ProcVersionSignature: Ubuntu 5.8.0-45.51-generic 5.8.18
Uname: Linux 5.8.0-45-generic x86_64
ApportVersion: 2.20.11-0ubuntu50.5
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Mar 19 00:09:06 2021
InstallationDate: Installed on 2020-11-03 (136 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: Dell Inc. OptiPlex 3060
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-45-generic root=UUID=e02030f3-4a63-4fbe-be68-a31bd0daa38a ro quiet splash vt.handoff=7
SimpleScanLog:

SourcePackage: simple-scan
UpgradeStatus: Upgraded to groovy on 2021-03-13 (5 days ago)
dmi.bios.date: 07/02/2020
dmi.bios.release: 1.7
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.7.1
dmi.board.name: 0T0MHW
dmi.board.vendor: Dell Inc.
dmi.board.version: A02
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.7.1:bd07/02/2020:br1.7:svnDellInc.:pnOptiPlex3060:pvr:rvnDellInc.:rn0T0MHW:rvrA02:cvnDellInc.:ct3:cvr:
dmi.product.family: OptiPlex
dmi.product.name: OptiPlex 3060
dmi.product.sku: 085C
dmi.sys.vendor: Dell Inc.