had this same problem (printhead) in january 2016. hp customer support was very accommodating, replacing printer with no problem. unfortunately refurbished printer received in january had same problem in march. again hp was very accommodating. my complaint is the inconvenience of having to wait for a replacement printer (usually a week to 10 days), then having to bundle up the old printer and get it to fedex for return. all this time without a working printer. my plea to hp: fix the hp6830 series or replace it with one that actually works!