An automated banking machine can communicate with a host computer to cash financial checks. The isolation region forms a perimeter of the tunnel region. This laminated body allows the dye in the temporary display layer to sublimate by the application of heat so as to print an image in the substrate layer. The gasket seals between the core plate and the partitioning means. The invention can be used with all conventional quantizers, for which an analog quantization error can be obtained, so it is possible through a noise shaping procedure to shift quantization noise into higher-frequency spectral ranges to improve the signal-to-noise ratio or reduce the quantization noise in a useful spectral range.