So I have been dealing with the resin tray not being recognized over the years. Usually could fix that with a cleaning of the sensor chip and the little gold fingers themselves. Then I had to adjust the height of the fingers to get it to come into better contact with the sensor chip. Now one of them has just broken off. It sounds like trying to replace a whole tank carrier is a nightmare with calibration. Has anyone found a clever way to just create a better contact with the spring fingers? Thanks for any ideas.
Hey @whiskeyguy,
I am not a services agent so this is not official advice here, but Iāve seen a few creative (and surprisingly effective) community fixes here over the years for exactly this issue.
If your tankās just intermittently losing contact, a quick first step some users have taken is to slightly build up the copper pads with tiny solder blobs to restore consistent contact pressure. Hereās one thread showing that approach: Form 2 Copper Finger Tank Non-Contact Hack. the user basically tinned the contact points with a bit of solder, which helped the fingers seat more firmly against the tank chip.
Another discussion that goes into detail about that method (and other alignment tweaks) is Replacing the Tank Spring Finger. In that one, people mention cleaning and lightly bending the spring fingers for better reach, and one user notes success after adding solder to the worn contacts.
Then thereās the experimental fix titled āthis is definitely going to void your warrantyā. The poster actually soldered wires directly to the tank connector and bypassed the broken spring contacts entirely with some jumpers. It worked, and one of our engineers was impressed, so it was equal parts risky and impressive.
If you try anything along these lines, just keep in mind that any modification to the contact assembly will void the warranty and calibration can be tricky if the carrier alignment changes. But if your printerās long out of warranty anyway, these threads are worth a read for reference.
Thanks Henry - I was able to get it to connect even with only 2 of the 3 brass bits just by angling them almost straight up. Iāll probably have to redo every once in awhile but so far so good. Thanks for the other ideas too!
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Donāt bend the fingers. It works for a while, but they donāt fatigue well. Solder blobs also helped for a while, but everything seems to be temporary. Iād recommend bypassing like the previous poster said. Iāve been fighting this for a long time and I wish Iād thought of that.