Document printers, digital document printers, industrial document printers, laser document printers, and thermoprinters for printing documents; Lasers for industrial use, laser beam emitting devices in the nature of apparatus for applying laser radiation, and laser diodes in the nature of lasers for industrial use; Thermal imaging systems, not for medical use; Electrical controlling devices for foregoing industrial lasers, laser beam emitting device, laser diodes, thermal imaging systems, doc...