Upgrading Your ET-8550 Printhead: Nipple Conversion for Improved Ink Flow

When it comes to Direct-to-Film (DTF) printing, maintaining a smooth and efficient workflow is crucial. One of the key components that can significantly impact your print quality is the printhead. The Epson ET-8550 is a popular choice for DTF printers, but it requires some modifications to handle the demanding nature of DTF inks, particularly white ink. In this guide, we will walk you through the process of upgrading your ET-8550 printhead with a nipple conversion to enhance ink flow, make priming easier, and reduce clogs. This modification will be particularly useful for those who frequently encounter issues with ink delivery. We have also included a video tutorial below to guide you through the process.

Understanding the Importance of Printhead Modifications

Before diving into the modification process, it’s essential to understand why this upgrade is necessary. The ET-8550 printhead comes with a mesh intake system, which is not ideally suited for the thicker and more viscous nature of white DTF ink. The mesh system can cause inconsistent ink flow, making it difficult to prime the printhead properly. This often leads to frequent clogs, uneven prints, and a generally frustrating experience. By converting the printhead to use nipples instead of mesh intakes, you allow for a more direct and stable ink flow. This conversion is a game-changer for anyone serious about DTF printing, as it improves reliability and reduces maintenance time.

Gathering Your Tools and Materials

Before starting the conversion process, it’s crucial to have all the necessary tools and materials ready. You will need a size 1 or size 0 Phillips screwdriver, which is essential for removing the screws that secure the printhead. These screws are tiny and easily lost, so it's wise to handle them with care and keep them in a safe place during the process. Additionally, you’ll need the nipple conversion kit, which can be purchased from BCH Technologies. The kit includes everything you need to replace the mesh intakes with nipples, ensuring a seamless and hassle-free conversion.

Step-by-Step Guide to Nipple Conversion

1. Removing the Printhead: Start by locating the screws on the bottom of the printhead assembly. Carefully unscrew them using your Phillips screwdriver, and place the screws somewhere safe. Next, gently separate the PCB board from the printhead body. This step might be challenging the first time you do it, but it gets easier with practice. Take your time to avoid damaging any components.

2. Handling the PCB Board: Once the PCB board is separated, you’ll notice a black rubber gasket on the green board. It’s crucial not to remove or damage this gasket, as it plays a vital role in sealing the printhead and ensuring proper ink flow. Carefully remove the old mesh intake from the printhead, keeping track of its orientation for when you install the new nipples.

3. Installing the Nipples: With the old mesh intake removed, you can now install the nipple replacements. Hold the new nipple in the same orientation as the old intake to ensure proper alignment. You don’t need to seal the screw holes, but if you prefer an extra layer of security, you can apply a small amount of sealant. Begin by inserting the screws into the holes by hand, tightening them just enough to hold the nipples in place.

4. Ensuring Even Installation: Once all the screws are loosely in place, tighten them evenly in a clockwise direction. This ensures that the printhead is installed evenly, which is crucial for proper sealing and operation. An even installation prevents leaks and ensures that the PCB board and printhead nozzles are properly aligned.

5. Finalizing the Upgrade: With the nipples securely installed, your ET-8550 printhead is now ready for reinstallation. The upgraded printhead will now allow for smoother and more consistent ink flow, particularly for white ink, which is often the most challenging to manage in DTF printing. This modification also makes the printhead easier to prime and less prone to clogging, saving you time and frustration in the long run.

Testing and Compatibility

After completing the nipple conversion, it’s essential to test the printhead to ensure everything is functioning correctly. At BCH Technologies, we recommend using the specific dampers that we have tested and approved for this modification. However, if you have other dampers that fit, feel free to use them. Just keep in mind that compatibility may vary, and using recommended dampers can help avoid potential issues.

Once your printhead is reinstalled and your printer is back in operation, run a few test prints to verify that the ink flow is smooth and consistent. Pay particular attention to the white ink, as this is where you’ll see the most significant improvement. If everything is functioning as expected, you’re ready to get back to printing with improved reliability and reduced maintenance.

Maintenance Tips Post-Conversion

Now that you’ve successfully upgraded your printhead, it’s important to maintain it properly to extend its lifespan and keep your printer running smoothly. Regularly cleaning the printhead and running maintenance cycles will help prevent clogs and ensure consistent print quality. Additionally, make sure to use high-quality DTF inks, as lower-quality inks can still cause clogs, even with the nipple conversion. By following these maintenance tips, you can maximize the benefits of your upgraded ET-8550 printhead and enjoy hassle-free printing for longer periods.

Why Choose BCH Technologies for Your DTF Printing Needs?

At BCH Technologies, we pride ourselves on providing top-notch solutions for all your DTF printing needs. Whether you’re a seasoned professional or just starting with DTF printing, our products and support are designed to help you succeed. Our nipple conversion kits are rigorously tested to ensure they meet the highest standards, and our team is always here to assist with any questions or issues you might encounter. Visit our website to explore our range of products and find the tools you need to take your printing to the next level. And don’t forget to check out our video tutorial below, where we walk you through the entire nipple conversion process step by step.

This modification is more than just a simple upgrade; it's an investment in the efficiency and quality of your printing process. By taking the time to convert your ET-8550 printhead, you’ll enjoy smoother operations, fewer interruptions, and higher-quality prints. The improved ink flow and reduced clogging make a noticeable difference, especially in demanding DTF printing environments.

Now that your printhead is upgraded and ready, it’s time to see the results for yourself. Watch our video below to follow along with the process, and visit BCH Technologies for more expert advice and quality products.