It indicates a possible exploit of an LCD Display Modification bug in HP JetDirect printers.
JHP JetDirect printers contain a vulnerability that can allow an attacker to display arbitrary text in the LCD panel of the printer.
HP JetDirect J3111A rev. G.08.03 and earlier versions.
Can be used as part of a Social Engineering attack.
Apply appropriate patch from the vendor or Upgrade to non-vulnerable version if available.