The present invention provides an image printing apparatus in which the consistency between image files and a print information file can be held and also the efficiency of user operation can be enhanced. A cam and a roller of the roller rocker lift mechanism cooperate with each other to control valve lift. The uppermost face of the EL sheet structure is coated with a protective layer. Output conveyors accept the mail items from the pouches and transport the mail items to a stacking device. When the difference is greater than or equal to the vibration determination threshold, the antiskid control system determines that a driveline vibration is generated and executes a control for converging the driveline vibration. The stopper can be pressed upwards to be opened so as to cause the sufficiently infused coffeetea to drip.