Hi Luca can you try
/etc/udev/rules.d/99-local.rules
SUBSYSTEM!="usb_device", ACTION!="add", GOTO="_end" # For BROTHER MFC-1910W SYSFS{idVendor}=="04f9", SYMLINK+="scanner-%k",OWNER="root",GROUP="scanner",MODE="0660" LABEL="_end"
Hi Luca can you try
/etc/udev/ rules.d/ 99-local. rules
SUBSYSTEM! ="usb_device" , ACTION!="add", GOTO="_end" =="04f9" , SYMLINK+ ="scanner- %k",OWNER= "root", GROUP=" scanner" ,MODE=" 0660"
# For BROTHER MFC-1910W
SYSFS{idVendor}
LABEL="_end"