A coating liquid application apparatus is provided which can apply a coating liquid, such as a coating agent for improving a weatherability of a printed surface, to the printed surface of a print medium automatically and at high speed. Upon an interrupt condition, the fetch unit eliminates from a request queue a previously requested instruction that precedes the interrupt condition. The lower cover is located below the upper cover and has two second plug holes that correspond to the first plug holes. With a current feedback amplifier as the initial stage, the two feedback signals are current-mode signals and thus add to form the combined feedback signal. A message is generated, based at least in part on the type of emergency and logistics of the given area, including additional emergency information for augmenting the emergency alert message.