Review on HOTCOLOR 940 Printheads Replacement for HP Printheads 940 C4900A C4901A - Compatible with HP Officejet Pro 8500A Plus and 8500 - (2 Black/Yellow 2 Cyan/Magenta,4PK) by Steven Latham

I was trying to service the original printheads that came with my printer but got to the point where they ran out. That's why I bought these printheads. They both printed, but it turned out that the black and yellow printhead printed with very poor print quality. I have followed the steps suggested by the seller to no avail. The seller sent a replacement print head and it worked! Great communication and help getting my printer working again!