Проблемы с HP1018

Подскажите что могут значить такие вот записи в /log/messages
Dec  7 11:10:39 arm-desktop HP_LaserJet_1018?serial=KP11S4T: INFO: open device failed; will retry in 30 seconds... 
Dec  7 11:11:09 arm-desktop HP_LaserJet_1018?serial=KP11S4T: unable to send DeviceOpen: Broken pipe: api/hplip_api.c 441 
Dec  7 11:11:09 arm-desktop HP_LaserJet_1018?serial=KP11S4T: unable to send Event hp:/usb/HP_LaserJet_1018?serial=KP11S4T 46 5012: Socket operation on non-socket 
Dec  7 11:11:09 arm-desktop HP_LaserJet_1018?serial=KP11S4T: INFO: open device failed; will retry in 30 seconds...