Oce 3165 Operator's Manual page 68

Press the function button 'Toner registration'.
14
Press start (
15
The arrow buttons can be used to indicate that between 1 and 4
Note:
bottles have been added. This is reserved for the Océ service technician.
Quit the key operator system.
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68 Océ 3165 Key Operator Manual
) to indicate that you have added one bottle of toner.