Oki C 9400 - Manual (Page 105)

Menu Mode
Press to go back to the previous Item in the Menu.
Press and hold to advance backward through the menu Items quickly.
Password (PIN) Mode
Press to enter the number 5 in the password.
VALUE + Button
Menu Mode
Press to advance to the next Value for an Item in the Menu.
Press and hold to advance through the Values quickly.
Password (PIN) Mode
Press to enter the number 2 in the password.
VALUE - Button
Menu Mode
Press to go back to the previous Value for an Item in the Menu.
Press and hold to advance backward through the Values quickly.
Password (PIN) Mode
Press to enter the number 6 in the password.
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