I cannot scan with Document Scanner on Ubuntu 20.04.1 with my HP Color LaserJet CM2320fxi MFP. It worked fine on Ubuntu 18.04.
I get the error "Failed to scan. Unable to connect to scanner".
Then I tried uninstalling ippusbxd using Synaptic Package Manager, disconnecting the printers from USB, deleting the printers in Settings -> Printers and then reconnect the USB and reinstall the printers. But scan still doesn't work.
I cannot scan with Document Scanner on Ubuntu 20.04.1 with my HP Color LaserJet CM2320fxi MFP. It worked fine on Ubuntu 18.04.
I get the error "Failed to scan. Unable to connect to scanner".
Then I tried uninstalling ippusbxd using Synaptic Package Manager, disconnecting the printers from USB, deleting the printers in Settings -> Printers and then reconnect the USB and reinstall the printers. But scan still doesn't work.