Oki ES3640MFP Service & Troubleshooting Manual page 29

9. Once the Q-13 and ColorCal page are on the copier glass, press the Enter button
10. In the next window choose whether or not to print a comparison page and press enter
11. When asked to apply the calibration, press the Enter button
12. In the final window select yes, and press the Enter button in order to overwrite
the previous calibrations
13. Press the On Line button to return the printer to normal operation
Apply Calibration
*Yes
No
Affects all. Contin?
*Yes
No