IPP Driverless Printing on Release 14.2

Hi all,

before lesser than 2 weeks my usb-printer (HP ENVY 5540) worked
good with ipp driverless printing cups with the following settings:

#cups-browsed.conf
CreateIPPPrinterQueues LocalOnly
CreateIPPPrinterQueues Driverless

#cupsd.conf
Browsing On
#devfs.rules
[system=10]
add path 'unlpt*' mode 0660 group cups
add path 'ulpt*' mode 0660 group cups
add path 'lpt*' mode 0660 group cups
add path 'usb/0.8' mode 0660 group cups

[usbscanner=10]
add path 'ugen*' unhide

service avahi-daemon start
service ipp-usb start
service cupsd start

Since yesterday the printing didn't work. I have not made any changes
in cups-browsed.conf and cupsd.conf. Have I overlooked something or
bodged unconscious?

Do you have a notion what it could be?

P.S in the meantime I'v deleted the ipp-usb package, in order to
reinstall it. I can't find it any more???

Manfred