Oki LD670 Benutzerhandbuch Seite 167

The printer enters received data analysis mode from the special mode.
Press the FEED switch briefly (one second or less) four times to move to
"DATA ANALYSIS".
Data Analysis
↑
Cleaning
↑
Sensor Adjustment
↑
Setup
↑
Test Print
End
Sample Print
Data Analysis
Cleaning
Sensor Adjustment
Setup
Test Print
Selection Item
166