Operating System: Windows Vista x64 (Note: might work with other versions of this os.)
OKIPOS 441 - 441J UniTool Driver for Windows Vista - Windows Vista 64 Bit
Install instructions: 1. Double click on OKIPOS411VEA.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:OKIDATA441_441JWinVista.
6. Click on OK
7. Follow the prompts to finish the driver installation.