Oki PT340 Manual De Instrucciones página 54

7-2. Exiting Directly to Setup Menu
Hold the FEED button down for 3 seconds or more to return to the Setup
Menu.
Although holding down the FEED button for a long time causes the buzzer
to sound twice after 1 second, ignore this and continue to press the FEED
button.
After about 3 seconds, the buzzer sounds three times and the following
menu is printed.
Setup Menu
1.Setting
2.Setup Print
3.Save & End
4.Default Set
<Set>
Press FEED button for the number of times
as the same as your selecting item, and
wait more than 1 second.
<Return>
Continue to press FEED button more than
1 second.
Proceed to step 8.
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