Oki OKIOFFICE84 Maintenance Manual page 250

3 Austria (40044103)
This section gives the following instruction.
• DIP switch setting
• Instructions of marking with red oil ink.
For detail, see the figure below.
ON
1 2 3 4
Magnified figure
D A C H
X 1 X 2
Marking a portion "A" with red oil ink.
40672201TH Rev. 4 8 - 18