Oki MC573 - If the Error Code Is 390

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9. Troubleshooting
1
If documents are set in the ADF or on the document glass, remove them.
2
If paper is loaded on the MP tray, remove the paper.
3
Hold the handle (B) and open the scanner unit (a) completely.
4
Press the button (A) and open the output tray (b) completely.
While removing consumables, be careful not to hit them to the LED head.
If the Error Code is "390"
Burns may result.
The fuser unit is extremely hot. Do not touch it.