Obtained is an image generating apparatus capable of suppressing increase in the number of components and inhibiting a rotating member from slipping off an apparatus body by an abrupt external impact or vibration in a nonprinting state including a state in transportation. This sublimating printer (image generating apparatus) includes a printer body including a chassis (1) having an engaging portion (1g, 1h) and a rotating member (6, 46), provided inside the chassis, integrally including rotating shafts (6c, 46c) on both ends thereof while also integrally including a protrusion (6d, 46d) engaging with the engaging portion of the chassis in a printing standby state (nonprinting state).