Savin MLP31n Operating Instructions Manual page 16

8. [Menu] key
Press this key to make and check the current printer settings.
9. [Escape] key
Press this key to return to the previous condition on the display.
10. [ Enter] key
Press this key to execute menu items selected on the display.
Press this key to clear some errors.
11. [ ] [ ] keys
Press keys to increase or decrease values on the display when making settings.
Keep the key pressed to quicken scrolling, and increase or decrease values on the display in units of 10.
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