Workaround for the time being is entering the URI "parallel:/dev/usb/lp0" for USB-Parallel adapter cables and not using more than one of these cables and no additional real USB printers on one computer.
Workaround for the time being is entering the URI "parallel: /dev/usb/ lp0" for USB-Parallel adapter cables and not using more than one of these cables and no additional real USB printers on one computer.