Solving Ink Cartridge Cover Errors on Epson WF-7710 and WF-7720

Question:

I fixed the ejection lever of my Epson WF-7710/WF-7720 and put the printer back together, but now I have an "ink cartridge cover open" error. Is this a problem with the data cable? I cleaned it and booted up the printer once.

Answer:
As for the "ink cartridge cover open" error, this probably has to do with the data cable, so make sure everything is tightly connected. This issue may happen as the printer tries to move the print head towards the left and gets blocked or misperceived things. The printer's inner works may misread the blockage as an open cover on the ink cartridge. Even though you have cleaned one wire, the wire could still not be adequately aligned or not connected properly. Check for any visible sign" of damage on the cable, "like bends or cracks; ensure it's properly seated in its connector.

Also worth examining is the cover sensor itself. The sensor (particularly on the WF-7710 and WF-7720 models) can sometimes get printers when you take the machine apart and put it back together. If the sensor is not working properly or is blocked, it can cause the printer to think that the cover is open. Make sure your assembly around ink cartridge cover is reset if not properly aligned.
Otherwise, unplugging it and reseating the cable might help, so you may want to rerun a test. Such steps often clear communication errors between the printer's internal components and sensors.

Printer problems can be a hard subject to resolve because they are hands-on and challenging to troubleshoot. Therefore, we cannot offer remote troubleshooting, suggestions, or printer repair support. Based on the high influx of requests, use our first come, first serve in-person evaluation and repair service through our local diagnostic repair center: https://bchtechnologies.com/printer-repair-service. It won't take weeks before we can get your printer to drop it off. We offer services to fix an entire printer or specific components with instructions. However, we admit that our rates are not the cheapest. Therefore, we strongly suggest that you turn to self-help through the medium of online research. First, you can go to YouTube and start exploring, or check our YouTube channel home page at https://youtube.com/@bchtechnologies, or find the specific videos you are looking for by hitting the search icon on the right-side menu bar next to "About." I get dozens of inquiries every day asking about videos for particular topics. I am over nine years into it, and having created videos, I find it hard to remember each one. So, the most effective way would be to use YouTube's search function. YouTube also may recommend relevant videos from other channels that can help you.