This driver release contains both the PCL & PS drivers for Windows NT 4.0. In order to install both drivers, the instructions below have to be followed once for each driver.
1. Double click on B6X00PX4E.exe
2. Follow the on-screen prompts to extract the driver files
3. Launch Add Printer Wizard
4. When prompted for the Manufacturer and Model click on Have Disk
5. Browse to the following location "C:\OKIDATA\B6200_B6300\WinNT 40\English"
6. Click on OK
7. Follow the prompts to finish the driver installation