Advanced ET-8550 Cleaning Unclogging Prime Printhead @BCHTechnologies
Advanced ET-8550 Cleaning Unclogging Prime Printhead  @BCHTechnologies
Uploaded December 2025 | Updated September 2026, 2 weeks ago
In this advanced tutorial, Kevin from BCH Technologies explains the correct and safe way to unclog an Epson ET-8550 printhead—especially after DTF conversion—without damaging the internal membranes or causing ink delamination. Many users try to push ink from the top and unknowingly destroy their printhead. In this video, you’ll learn why suction from the capping station is the correct method, how Epson controls vacuum pressure during cleaning, and how you can measure and manage that pressure yourself to avoid costly mistakes.

What you’ll learn in this video:
Why suction is safer than pressure for unclogging Epson printheads
How high pressure causes membrane rupture and color mixing (delamination)
The safe pressure range Epson uses during normal and power cleaning
Why power cleaning is risky—and when it should never be used
How to install and use a pressure gauge to quantify vacuum safely
Step-by-step removal and reinstallation of the capping station
How to safely fill dampers and restore ink flow after DTF conversion

Kevin also demonstrates real pressure readings during normal cleaning and power cleaning, so you can see exactly what the printer is doing internally—without guessing.
For other helpful videos, go to youtube.com/bchtechnologies
For printer repair:
🢡 Visit us: BCH Technologies, 506 Radar Road, Suite B, Greensboro, NC 27410.
🢡 Send the printer for repair! bchtechnologies.com/printer-repair-service Yes! We repair DTF, DTG, and sublimation printers too!
🢡 Donate your printer to us! Contact support@bchtechnologies.com

More support options for your printer device are available at support.bchtechnologies.com
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About BCH: BCH Technologies is an innovative company focusing on ink and related products. Founded in 2011, the company transforms how people and businesses refill their printers through innovative technology solutions. Our core purpose guides the research direction of 1) preventing land waste and 2) bringing customers better products with lower costs. Every day, over one million ink cartridges are thrown into landfills worldwide. The company has focused on working with businesses of different sizes, from Fortune 500 companies to entrepreneurial starters, to develop custom ink, spanning from printer ink to stamp ink, re-entry ink, indelible ink, redaction ink, invisible ink, and more.This video is intended for informational and educational purposes only and should not be considered professional advice, endorsement, or a recommendation. The content provided does not constitute technical or expert guidance. If you choose to act on the software or information presented, we strongly encourage consulting with a qualified professional. Any reliance on the information in this video is at your own discretion and risk.
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Kevin at BCH |

Advanced ET-8550 Cleaning Unclogging Prime Printhead

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