Resetting ink level C5280 - HP 350/351

[DrProzac]

Does anyone know a solution how to reset a custom refilled HP 350/351 cartridge? In a way that the printer (c5280) thinks it's full again?
I used the use-two-other-cartridges-methode. But after 'installing' two other cartridges, the C5280 still remembered my old (refilled) cartridges, and said they were empty.

 

[Inkin]

Just keep printing. After 6 or 7 times it will stop telling you.

Do a printhead cleaning when you first install and every two weeks.
See the fading or streaking and the cleaning doesn't help. its time to refill.

 

[DrProzac]

Thanks!