A reading operation control device provided in an electro-developing type camera using a recording medium which electronically develops an image formed by a photographing optical system. When an electro-developing recording medium is mounted, it is determined whether or not the electro-developing recording medium has been recorded. If the electro-developing recording medium has not been recorded, and when a record mode is set and a release switch is turned ON, a recording operation is performed, and thus an image is recorded in the electro-developing recording medium. If the electro-developing recording medium has been recorded, and then a reading mode is set and a scanning switch is turned ON, a reading operation is performed, and thus the image recorded in the electro-developing recording medium is read.