1. Download driver OKI LE850TT printer.
All of drivers OKI LE850TT printer:
Download driver OKI LE850TT printer for windows operating system
Download OKI LE850TT printer driver for MAC OS
2. Install driver of OKI LE850TT printer guide
Step 1: Extract printer driver file.

Fugure 1: How to install driver for OKI printer
Step 2: Run to file “Setup.exe”.

Fugure 2: How to install driver for OKI printer
Step 3: Press to “Next”.

Fugure 3: How to install driver for OKI printer
Step 4: Press to “Yes”.

Fugure 4: How to install driver for OKI printer
Step 5: Choose “Install with USB connection” and press to “Next”

Fugure 5: How to install driver for OKI printer
Step 6: Wait for moment to the software installation in the computer.

Fugure 6: How to install driver for OKI printer
Step 7: Choose “Restart computer now” and press “Exit”. Computer will reboot and printer dirver has installation complete.

Fugure 7: How to install driver for OKI printer