# Form2 not recognizing inserted cartridge **URL:** \ **Category:** Form 2\ **Created:** [May 10, 2018, 10:28pm UTC](https://forum.formlabs.com/t/form2-not-recognizing-inserted-cartridge/18724 "2018-05-10T22:28:18Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![beaveren](https://avatars.discourse-cdn.com/v4/letter/b/58f4c7/32.png) [@beaveren](https://forum.formlabs.com/u/beaveren)\ **Post date:** [May 10, 2018, 10:28pm UTC](https://forum.formlabs.com/t/form2-not-recognizing-inserted-cartridge/18724/1 "2018-05-10T22:28:18Z")
My Form2 has suddenly stopped recognizing that there is a resin cartridge inserted in the resin cartridge slot. This occurs with any number of cartridges that I have tried thus far. I had just changed out a spent resin tray and while the tray was trying to fill before a print it would keep indicating that the cartridge had been removed and then inserted every time the machine would try and pump a little resin into the tray. Once the print did start after about a layer or two it stopped recognizing that a cartridge was inserted and paused the print. No number or power cycles or reinsertion of cartridges seems to work… ---
**Author:** ![ClaudioPin](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@ClaudioPin](https://forum.formlabs.com/u/ClaudioPin)\ **Post date:** [May 14, 2018, 10:05am UTC](https://forum.formlabs.com/t/form2-not-recognizing-inserted-cartridge/18724/2 "2018-05-14T10:05:51Z")
This happened to me with 2 different printers in the past. One of them had the sensor that reads the chip in the cartridge broken. The other one looked ok, but would not read the cartridges once in a while, resulting in stopped prints overnight… In both cases they were replaced, because changing the cartridge bottom floor did not solve the issue. Get in touch with support, they will help you troubleshoot the problem. CPinto ---
**Author:** ![beaveren](https://avatars.discourse-cdn.com/v4/letter/b/58f4c7/32.png) [@beaveren](https://forum.formlabs.com/u/beaveren)\ **Post date:** [May 14, 2018, 4:38pm UTC](https://forum.formlabs.com/t/form2-not-recognizing-inserted-cartridge/18724/3 "2018-05-14T16:38:57Z")
I have an open ticket with support and it could possibly be a firmware issue. They are aware that some machines have been having this issue and expect the new version to fix the problem. We shall see. ---
**Author:** ![beaveren](https://avatars.discourse-cdn.com/v4/letter/b/58f4c7/32.png) [@beaveren](https://forum.formlabs.com/u/beaveren)\ **Post date:** [May 14, 2018, 10:29pm UTC](https://forum.formlabs.com/t/form2-not-recognizing-inserted-cartridge/18724/4 "2018-05-14T22:29:19Z")
New firmware just released today and problem still persists. Support ticket is still open… ---
**Author:** ![ClaudioPin](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@ClaudioPin](https://forum.formlabs.com/u/ClaudioPin)\ **Post date:** [May 15, 2018, 8:58am UTC](https://forum.formlabs.com/t/form2-not-recognizing-inserted-cartridge/18724/5 "2018-05-15T08:58:35Z")
I would say you have an hardware issue rather than firmware… I don’t know exactly what happened with our first printer but changing the cartridge floor resulted in the same issue, and at the time we tested different firmware also. We tested with more than 20 cartridges and the issue was always there. You will probably need to send back your printer… CPinto ---
**Author:** ![Biogear](https://avatars.discourse-cdn.com/v4/letter/b/97f17d/32.png) [@Biogear](https://forum.formlabs.com/u/Biogear)\ **Post date:** [May 15, 2018, 10:32am UTC](https://forum.formlabs.com/t/form2-not-recognizing-inserted-cartridge/18724/6 "2018-05-15T10:32:26Z")
Same here, no improvement with new firmware 1.17.7 I have a thread open with the same topic, where I describe what I’ve already tested: > [@Removed/Missing Cartridge Error with newer cartridges](http://forum.formlabs.com/t/removed-missing-cartridge-error-with-newer-cartridges/18631/): > > Hi everyone I already had some problems with the printer, but the current “Missing Cartridge Error” is really tricky and I don’t get it solved. I started my first prints with Clear V2 and never had any problems, then I got Clear V4, White V4 and Flexible V2. Since then the cartridge sensor drives me crazy. What I found out while watching the printer is, that the printer shows the message “Cartridge removed” (and/or “Unknown Consumable Removed”) only when the tank starts to move to the right a… ---
**Author:** ![beaveren](https://avatars.discourse-cdn.com/v4/letter/b/58f4c7/32.png) [@beaveren](https://forum.formlabs.com/u/beaveren)\ **Post date:** [May 15, 2018, 12:26pm UTC](https://forum.formlabs.com/t/form2-not-recognizing-inserted-cartridge/18724/7 "2018-05-15T12:26:45Z")
Saw your open thread Biogear and read through it all. Seems to be a much more widespread problem. If running in Open Mode is the only solution they can offer than what’s the point… ---
**Author:** ![system](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/5/b/5bc2bdf993ff27c2e0eecab5010b25626fbb327a.png) [@system](https://forum.formlabs.com/u/system)\ **Post date:** [May 29, 2018, 12:26pm UTC](https://forum.formlabs.com/t/form2-not-recognizing-inserted-cartridge/18724/8 "2018-05-29T12:26:48Z")
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