looking at device '/class/usb/lp0':
        KERNEL=="lp0"
        SUBSYSTEM=="usb"
        DRIVER==""
        ATTR{dev}=="180:0"
                                                                        
      looking at parent device '/devices/pci0000:00/0000:00:1d.0/usb1/1-1':
        SUBSYSTEMS=="usb"
        ATTRS{manufacturer}=="EPSON"
        ATTRS{product}=="USB Printer"
        ATTRS{serial}=="L72010011070626380"