Oce OP33 Reference Manual page 139

You can select the language displayed on the touch panel display.
NOTE
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3
1
Language Switch
2
3
3-28 Setting Specifications That Are Common to Each Function (Common Settings)
Call up the desired screen as follows:
(Additional Functions)
Press "On," and select the desired language.
M L
Press "OK."
The display returns to the Basic Features screen, and the panel language changes.