Exemplary embodiments of the invention relate to an optical transceiver module having a status indicator assembly, wherein the status indicator assembly is configured to visually display the operational status of the transceiver transmitter and receiver components. A control unit 27 performs auto-positioning control, based on a shift amount performance value of the thrust bearing 15 detected by a shift amount detection sensor 16, so as to obtain a target roll shift position. A film pack containing a stack of instant photo film units is loaded in a loading chamber of the electronic still camera, such that the instant photo film units of the film pack are successively exposed through the printer section. The height of the heat source and the warming rack can be adjusted to allow control over the cooking heat.