Operating System: Windows 2000 (Note: might work with other versions of this os.)
C810n Series GDI Driver for Windows
Install instructions: 1. Double click on C810GDWEA.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:OKIDATAC810nEnglishGDI.
6. Click OK only available through the STP organization