Hello. My name is***** to JustAnswer. I'm reviewing your question now, and will post back with your reply momentarily.
Have you tried this method to get to the printhead:
Let me know if this is not something you can access still. And we will go from there. I am also including a video for that
particular 'series' that i am including below in case you get stuck.
In case you need to replace the printhead all together, i am leaving you a link to purchase one below.
If you are satisfied with the help I have provided, please remember to click and submit a star rating on this page. Your feedback is important as it is the only way I am credited for assisting you. Thank you.~Franklin
Let me know if you need further assistance.