Oki C6100dn - Manual (Page 7)

C6100 Series Network User’s Guide
Configuration - 7
Self-diagnostic test
With the printer power switched on, press the print server test
button for more than three seconds and release. The
self-diagnostic test results and configuration settings are printed.
Printed self-diagnostic test sample
If “NG” is displayed instead of “OK” see the “Troubleshooting”
chapter.