The present invention involves processes that utilize an olefinic compound, in particular, hexafluoropropene or chlorotrifluoroethene as extracting agents in the purification of pentafluoroethane. The auxiliary-layer-lined unfired ceramic body is fired at a temperature at which the unfired ceramic body is sinterable but the auxiliary layer is substantially unsinterable, while the auxiliary layer remains adhered to the unfired ceramic body. The lighting systems provide virtually any desired color and intensity of light, and avoid overheating problems by deflecting unwanted light and other electromagnetic radiation out of the system or to a heat management system. Implementations of the subject technology also include a microprocessor configured to perform operations for determining whether a newer firmware version is available for the card reader or whether a download of such a firmware needs to be completed, and in response to determining such a download is needed, performing a download of the firmware via the audio plug during periods of inactivity. The printing unit prints on a belt-shaped print media, which is drawn out from a roll of printable media that is rotatably supported by at least the first print medium supporting unit. If the new code is authorized, the application loads the new code while the application is running.