Hi TechBertu,

Thanks for posting.

Have you tried resetting? 

1. Power OFF the printer and UN-plug any data cable(s).
2. Open the front cover.
3. Depress and hold both the Continue and Cancel buttons.
4. With the cover open and both buttons depressed, power ON the unit.
5. Continue to hold the buttons down until the Error light is the only one active. (you will see the lights cycle several times before this occurs)
6. Close the cover...... Done

Post back your results.  

Hi DELL-Robert P,

thanks for your replay and sorry for the long reply.

I have tried to do the reset following your instructions, but unfortunately did not solve the problem.

is there anything else that I can try?

thanks

In researching this, unfortunately it appears your mainboard may have died.  You might contact Tech Support if you are still under warranty, or a local computer shop for further assistance.  Thanks.