An all-terrain retail merchandising unit or kiosk that can be used outdoors and across grass and gravel for outdoor events. When the noise detector detects the noise, the scan drive unit changes a frequency of the touch drive signal in the touch detection operation period and supplies the changed frequency to the touch detection element. The substrate holder is to be transported in a state of holding the substrate. In a preferred embodiment this is effected using a switched indicator lamp. Servicing the machine is facilitated through use of a portable diagnostic article which enables the controller to access diagnostic data stored in memory and which provides data indicative of the significance of the diagnostic data. One version of the apparatus generally includes a first rotary sealing device for producing transverse seals that bond the film plies together, an inflation assembly for directing gas between the film plies, and a second rotary sealing device for producing a longitudinal seal between the film plies.