In order to facilitate printing of an image drawn on an electronic board while improving security, an MFP includes a portion to generate conference identification information in response to reception of a start instruction from an electronic board, a portion to associate the conference identification information with device identification information for the electronic board, a portion to associate image data received from the electronic board with conference identification information lastly associated with the device identification information for the electronic board, a portion to associate user identification information received from the electronic board with conference identification information lastly associated with the device identification information for the electronic board, a portion to authenticate a user, a portion to extract conference identification information associated with the user identification information for the authenticated user, a portion to extract image data associated with the conference identification information, and a portion to output the image data.