I read this question. Also I have Xerox Workcentre 3025 multifunction printer and Ubuntu 18.04.
I do the same steps to install this device. Printer works well, but scanner not.
When device is in standby I run gscan2pdf
and device wakes up.
But if i try to scan, nothing happened and this https://i.stack.imgur.com/Kwmhy.jpg .
$ lsusb
Bus 003 Device 003: ID 0924:42da Xerox
The contents of xerox_mfp.conf
is
#Xerox WorkCentre 3025
usb 0x0924 0x42da
The file /lib/udev/rules.d/60-libsane.rules
does not exists, but /lib/udev/rules.d/60-libsane1.rules
exists.
I added
# Xerox WorkCentre 3025
ATTRS{idVendor}=="0924", ATTRS{idProduct}=="42da"
lines also.
What is wrong?