OKI ES5473

Note!
Entering the System Maintenance mode requires a password. Maintenance Menu for description on it. Following description is explained in the case of MC573 as an example.

1. Select the "Device Settings" by touch panel.
2. Enter [#] → [0] → [1] → [0] → [3] → [*] at "Device Settings" display.
3. Enter the password "000000" and touch [OK] button.
4. Select the "Print Maintenance" → "Engine Diag Mode"

Exiting self-diagnostic mode

1. When the [d] ([4]) is pressed from Diag Mode (Window displaying/Factory state), the setting window will return.