I need to know how to fix this printhead problem because my grandparents have a lot of business related papers to print and we havent had any lucky on any other sites that could help us fix this problem. everytime we try to print something all that shows up is There is a problem with the printhead, and im not sure how to clean or remove it so i can reinstall it. i just need a lot of help with this!!!
Our printer is a HP Officejet 6815