hp Officejet 6500 E709a "ink system failure" error message

[AleMaDaMa]

I have an hp 6500 Officejet E709a, ethernet wired not wireless.  

Suddenly it stopped working. with error message "ink system failure Please turn printer off and on".  

Did this twice and still same result.  

Cleaned contacts on print head and printer as instructed in hp note.  Still same result.  "ink system failue"

Did hard reset of printer by unplugging and plugging power back in.  Still same result. "ink system failure".  

Tried not inserting any cartdriges (only empty printhead then). Still same result. "ink system failure". 

What can I do now?

thanks

marco

[Valsimot]

New printhead or new printer whatever is cheaper for you.

[AleMaDaMa]

but how can I be 100% sure that printhead is the problem?

If so, I would keep my printer, it is great, but I'm not sure to sort out the issue with the printhead...

Is there a way to be sure of that?

thanks

[Valsimot]

No, only one way and it's to replace it with a 100% working printhead.

[AleMaDaMa]

thank you Valsimot, don't know what to do then...

if I buy the printhead I could spend 30 euros more for nothing...

struggling...