The invention relates to the identification of C1 bacteriophage genes that express protein involved in the lysis of bacterial cells during the phage life cycle, lysin and holin. Each of the cells comprises a programmable module and a sensor element operatively coupled to the programmable module. The gap estimator is configured to estimate gap information relating to a gap between the vehicles based on the vehicle information. The controller controls the pump using an actual flow value when the vehicle is not executing a shift event, i. Thus, the loading condition of the cassette is released with the dustproof lid member closed under the control of the loading control mechanism, and therefore the surface of the recording medium can be effectively prevented from being stuck with dust.