Question: I am wondering if you have any idea why my DTF TOPUV printer will print white as nice as can be, but no color ink comes out after changing the printhead.

Answer: Thank you for contacting us. At BCH Technologies, we are grateful for your engagement and support, particularly with regard to our YouTube channel (https://youtube.com/@bchtechnologies). Your feedback plays a crucial role in further developing our technical expertise.

To address your issue where your DTF TOPUV printer prints white perfectly but no color ink comes out after a printhead change, here are some detailed steps and checks you can perform:

1. Check FFC Connections:
   • Ensure all Flat Flexible Cable (FFC) connections to the printhead are secure.
   • Inspect the FFC cables for any burn marks or gray stains on the connection points. Damaged cables from a previous printhead burnout can affect the new printhead's performance.
2. Verify Printhead Functionality:
   • Swap the white ink channel with one of the color channels on the printhead. If the swapped channel prints white, the printhead is likely in good condition.
3. Examine the Mainboard and Breakout Boards:
   • Some printers have individual drive boards for different colors. If these boards are malfunctioning, they can prevent color ink from printing.
   • Check the mainboard and any breakout boards for signs of damage or failure. Replacing or repairing these boards may resolve the issue.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. So, we're not able to provide remote troubleshooting, suggestions, or support for printer repairs. We offer an in-person evaluation and repair service via our local diagnostic facility (BCH Technologies Printer Repair Service https://bchtechnologies.com/printer-repair-service). Given the high demand, we operate on a first-come, first-served basis. So, it might take a few weeks before we can get your printer to drop it off or mail it to us. Our services are structured to repair either a whole printer or specific parts, with clear instructions on how to proceed if you opt for mail-in or local drop-off services. However, we acknowledge that our rates aren't the most economical. Thus, we highly recommend that you resort to self-help via online research. You can start by checking out YouTube or visiting our YouTube channel's homepage (https://youtube.com/@bchtechnologies). Look for specific videos using the search icon next to "About" on the right-hand side of the menu bar. I receive dozens of queries every day asking about videos for specific topics. Having created videos over the past nine years, it's challenging to remember every single one. Therefore, using YouTube's search function would be most efficient. Plus, YouTube might suggest relevant videos from other channels that could assist you.

Thank you again for reaching out to us with your question. We appreciate your trust in our expertise and hope this detailed response helps resolve your printer issue.