Two complementary bit lines corresponding to a selected column are pulled down to a ground voltage via each of a selected MTJ memory cell and a dummy memory cell and are pulled up to a power supply voltage via a read drive selection gate. The method first selects 110 a font from a library of fonts, based on information provided with the images. A hydrating fluid is then introduced into the container to hydrate the sponge. The second circuit is coupled through a first resistive element to the first terminal.