MG5150 & MG5250 prinhead

[Angelique]

What would the consequences be of opening up the printhead itself and trying to clean it with an air compress? would that have a chance or would that be the end of it all together?

 

[palombian]

Maybe I have a solution, see my PM

 

[Łukasz]

Today I have performed some tests with iP4850 (printer-only equivalent for MG5250) and two "Error U052" affected printheads.

None was forced to work with procedure mentioned post earlier. Something important is missing in description I guess

If temperature control circuit is broken, then is no help for the printhead.
Cleaning or so does not help in such condition (cleaning can recover printhead on initial stages of sort-circuit, before damaging tcc).

One guy was able to put diode to close broken circuit in QY6-0059 printhead but, after initial success, suffered "Error 6500" in return

Ł.