I'd "ink system failure", code 0xc18a0001 on my HPC7250, as well as */#/123 correct worked too. Thanks for your help! I refill my very own ink, and after you accomplish that, you don't often get an exact look at from the corresponding ink amount. Anyway, on a handful of occasions https://customersupportcorner.com/how-to-fix-printer-error-code-0xc19a0043/