A printing system comprises a host computer, a laser printer of a paper ejecting type and another laser printer of a non-paper ejecting type, all connected to one another via a system bus. The host computer functions as the supply source of image information and as the data processor, and controls the laser printer of a paper ejecting type and the other laser printer of a non-paper ejecting type. A printing apparatus and method that can contribute to increasing the speed and convenience of secured print in this printing system are to be provided. To accomplish this, the laser printer of a paper ejecting type and the other laser printer of a non-paper ejecting type will execute interrupt print processing when the received job is a secured print job and there is any other job being processed if there are a plurality of paper discharging ports or execute promote print processing if there is only one paper discharging port.