I’ve had ”sensing resin” issues before. That time the entire printer needed to be repaired. This time though, when I got the dreaded error message from a freshly inserted cartridge, I had to go looking.
Turned out the rubber pad dispenser at the bottom of the cartridge hadn’t been cut through completely at manufacturing. What looked like a hole/slit, wasn’t.
One sharp cut later and it dispensed material just fine.
Thought I’d share that troubleshooting for any future frustrated ”Sensing resin” problem-havers.