scaning problem with HP M28a

When I open xsane and scan something the scanner starts and then stops in the middle.
The scanner go back to the staring point and I get an "input/output error ".
I use Ubuntu 20.04.
I tried to update the driver with hplip and get this error :

USB hplaserjetm Required - - OK Node:'/dev/bus/usb/002/008' Perm:' root lp rw- rw- rw- rw- rw-'

Checking for Configured Queues....
error: PPD /etc/cups/ppd/.ppd file not found
warning: is not HP Device.
warning: Fail to read ppd=/etc/cups/ppd/.ppd file
warning: Insufficient permission to access file /etc/cups/ppd/.ppd
warning: Could not complete Queue(s) configuration check

The printer works fine.

Thanks for the help