How to Configure New Epson Printhead for L1800 Printing Quality Issue

Question:
I recently received a new printhead for my Epson L1800 printer. However, it doesn't perform better than my old, used printhead. I'm running it at 100%, but it barely covers the print area. Is there anything you can suggest to resolve this issue?

Answer:
Thank you for contacting BCH Technologies. We apologize for the slow reply. We know printer problems are annoying and can even be time-sensitive, but we want to respect each question as a lengthy query so that it receives the answer it deserves. Thank you for your patience. Also, we thank you for still supporting our YouTube channel, BCH Technologies ( https://youtube.com/@bchtechnologies), because your interaction will help us further develop and enhance it more technically.
Well, for your issue with the Epson L1800 printhead, we will provide you with some of the main ways to troubleshoot poor print quality issues in a new printhead:
Priming the Printhead
If you are installing a new print head, it is essential to remove this shipping fluid (typically provided in the case of new print heads) and replace it with white ink prior first. Due to its high viscosity, white ink requires priming for proper flow. How to Properly Prime the Printhead:
Purge the Shipping Fluid: Turn on your printer so the printhead parks over the capping station. Then, find the waste ink tube.
Draw Air Slowly: Gently draw 2-5 ml of air from the waste ink tube using an input device. It will be difficult going through, but do not worry; it is good that you are feeling the ink work its way out. If fresh ink is being pulled in, prime the damper.
Capping Station: The capping station needs servicing if you experience a vacuum while pulling with the syringe. The capping station is responsible for maintaining the correct ink flow. A healthy capping station takes nearly no effort to draw ink. Priming: 
After priming the new printhead, run a mild cleaning cycle to remove all residual shipping fluid, ensuring the new ink flows through your printer. Sometimes, the tubing in your printer can be blocked by old ink, which restricts ink access to the print head. This is an excellent opportunity to check the tubing either quickly by pulling ink through it with a syringe or during flushing for dried ink clogs. Depending on how many days or weeks your printer sat idle waiting for the new printhead, the wiper in the capping station hasn't adequately cleaned the printhead surface.
Inspecting it, ensuring it is clean, and adequately sealing the printhead when parked are necessary. Addressing the printer issues is extremely difficult in a remote setting. Therefore, we do not provide troubleshooting or support for the printer repair. We offer a local diagnostic facility. Due to high demand, it takes 1-3 weeks to evaluate and service your printing, whether dropped off or mailed in. We service printers fully or on part-specific issues with detailed instructions when mailed.
While we know that our prices are not the cheapest you can get, anything available online is always best to self-help as much as possible. You can initially check out the homepage of our YouTube channel, BCH Technologies (https://youtube.com/@bchtechnologies), and then use search to locate videos that suit your problem. It might also auto-populate beneficial content from other creators.
Again, thank you for your patience, Brittany. If you have any questions, please leave a comment.