1. An image output apparatus comprising: a communication interface configured to communicate with a control device that communicate with a plurality of data storage servers and a conversion server; an image output unit configured to output an image; a processor; and a memory storing computer-readable instructions, when executed by the processor, causing the image output apparatus to: receiving a selection of a specific data storage server selected by a user from among the plurality of data storage servers; transmit specific server identification information for identifying the specific data storage server to the control device through the communication interface; when first information is received through the communication interface from the control device in response to the specific server identification information, execute conversion processing for causing the conversion server to execute data conversion processing of converting specific data stored in the specific data storage server to converted data, the converted data having a format interpretable by the image output apparatus; when the first information is not received through the communication interface from the control device in response to the specific server identification information, control the image output unit to output a specific image that is expressed by the specific data without executing the conversion processing for causing the conversion server to execute the data conversion processing of converting the specific data to the converted data; wherein the first information includes transmitting method relation information indicating transmitting method which is one of: a first method where the specific conversion server acquires the specific data from the specific data storage server without via the image output apparatus; and a second method where the image output apparatus acquires the specific data from the specific data storage server and supplies the specific data to the conversion server.