clogged jets

How old is the machine/heads? You've done what you can do with those heads in terms of letting them soak with flush in them. Some folks claim to have luck cleaning heads in ultrasonic cleaners, but I've never had any luck myself.

 

approach the ultrasonic cleaner with caution.
this could turn into " where can i get my mainboard repaired?"

 

I'm not sure why it would affect the main board, but honestly the recovery of the ultrasonic cleaner probably won't do anything to fix your problem. I've done it as a LAST step procedure to try and get jets working again. I have never had any luck with it. Nor have I heard of anyone having success.

If a head flush/soak didn't recover the jets, most likely you have a scratch on that nozzle from a head strike. The jets are not plugged from ink. An Ultrasonic cleaner won't do anything for a damaged nozzle. If you're savvy enough, you could remove the head and look at the nozzles under magnification. You'll see if the problem is ink, a heastrike.

If I was a betting man I'd say you've had some head stikes that have damaged the head. Nozzles/jets clear from printhead cleaning procedures and head soaks. I suspect a head replacement is the only option to get your printer back up and running.

 

You cannot redrill the jets. It's toast most likely. These things are made with equipment and research in the billions of dollars. You're not going to be able to redrill the jets.

 

Welcome to printer ownership.


Sounds to me that a new print head is in your future. Time to call out the HP tech