A method of allowing exclusive access to shared data by a computing device and a computer readable article embodying instructions for executing the method. Thus the earphone signal check device can be used as a signal indicating device, and a signal or use condition check device. Relative motion is created between the substrate and the nozzle such that the water stream advances to an area which honeycomb has not been removed with the stream continually being directed at the base of the honeycomb. Based on the estimated relative levels, the levels at equalizers are set, so that the levels of signal components of the signal are adjusted by the equalizers channel by channel. Another embodiment of stock supply assembly includes a stock-dispensing device which dispenses the multi-ply stock material from a continuous sheet thereof and a transversely extending member which is positioned to engage at least one of the plies of the dispensed multi-ply stock material. The reservoir module has a central axis, and includes a pump mechanism and delivery tube mounted on the reservoir module in alignment with the central axis.