A scanner/scale system in which power to the scanner light source and/or motor is triggered by a weight placed on the scale and in which the scanner is situated between the load assemblies of the scale and the scale platter is situated above the scanner....http://www.google.es/patents/US5139100?utm_source=gb-gplus-sharePatente US5139100 - Point-of-sale scanner/scale system with scale activation of scanner
Point-of-sale scanner/scale system with scale activation of scanner
