The NRG DSM415 PCL 6 Windows driver refers to a printer driver for a device that uses the PCL 6 (Printer Command Language) standard, which is a page description language commonly used by laser printers and imaging devices. The DSM415 likely refers to a specific model of printer or multi-function device (MFD) from NRG (which is a brand of Konica Minolta). The PCL 6 driver is used to facilitate communication between your Windows operating system and the printer, enabling you to print documents.