A conveyance control system comprising: a first conveyance portion and a second conveyance portion configured to convey a platen; a first printer provided in the first conveyance portion and configured to perform printing on a print medium held by the platen conveyed by the first conveyance portion; a second printer provided in the second conveyance portion and configured to perform printing on the print medium held by the platen conveyed by the second conveyance portion; a conveyance control portion communicably connected to the first printer and the second printer on the basis of a predetermined communication protocol, and configured to control the first conveyance portion and the second conveyance portion; and a storage portion configured to store first printer identification information and first conveyance identification information in association with each other, and to store second printer identification information and second conveyance identification information in association with each other, the first printer identification information being configured to identify the first printer on the basis of the communication protocol, the first conveyance identification information being configured to identify the first conveyance portion, the second printer identification information being configured to identify the second printer on the basis of the communication protocol, and the second conveyance identification information being configured to identify the second conveyance portion, wherein when the first printer performs the printing, the conveyance control portion acquires, from the storage portion, the first conveyance identification information associated with the first printer identification information, and causes the first conveyance portion to convey the platen on the basis of the acquired first conveyance identification information, and when the second printer performs the printing, the conveyance control portion acquires, from the storage portion, the second conveyance identification information associated with the second printer identification information, and causes the second conveyance portion to convey the platen on the basis of the acquired second conveyance identification information. a first conveyance portion and a second conveyance portion configured to convey a platen; a first printer provided in the first conveyance portion and configured to perform printing on a print medium held by the platen conveyed by the first conveyance portion; a second printer provided in the second conveyance portion and configured to perform printing on the print medium held by the platen conveyed by the second conveyance portion; a conveyance control portion communicably connected to the first printer and the second printer on the basis of a predetermined communication protocol, and configured to control the first conveyance portion and the second conveyance portion; and a storage portion configured to store first printer identification information and first conveyance identification information in association with each other, and to store second printer identification information and second conveyance identification information in association with each other, the first printer identification information being configured to identify the first printer on the basis of the communication protocol, the first conveyance identification information being configured to identify the first conveyance portion, the second printer identification information being configured to identify the second printer on the basis of the communication protocol, and the second conveyance identification information being configured to identify the second conveyance portion, wherein when the first printer performs the printing, the conveyance control portion acquires, from the storage portion, the first conveyance identification information associated with the first printer identification information, and causes the first conveyance portion to convey the platen on the basis of the acquired first conveyance identification information, and when the second printer performs the printing, the conveyance control portion acquires, from the storage portion, the second conveyance identification information associated with the second printer identification information, and causes the second conveyance portion to convey the platen on the basis of the acquired second conveyance identification information.