To be sure, please attach here the ipp-usb logs. These log files are located at /var/log/ipp-usb/
If this is the same situation, the only one thing that I can do is to blacklist this device in the ipp-usb, so ipp-usb will not conflict with legacy drivers
Looks like bug, investigated here:
https:/ /github. com/alexpevzner /sane-airscan/ issues/ 68
To be sure, please attach here the ipp-usb logs. These log files are located at /var/log/ipp-usb/
If this is the same situation, the only one thing that I can do is to blacklist this device in the ipp-usb, so ipp-usb will not conflict with legacy drivers