Oki PT340 Manual De Instrucciones página 50

5. Then Press the FEED button three times (select 3.Print Density) selects
the Print Density setting and prints the following Print Density settings.
Print Density
1.70%
2.80%
3.90%
4.100%
5.110%
6.120%
7.130%
<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.
<Setup Menu>
Continue to press FEED button more than
3 seconds.
100%
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