# Cartridge dispense error **URL:** \ **Category:** Form 3/3+\ **Created:** [December 9, 2021, 5:04am UTC](https://forum.formlabs.com/t/cartridge-dispense-error/32649 "2021-12-09T05:04:04Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![JasonITB](https://avatars.discourse-cdn.com/v4/letter/j/e0b2c6/32.png) [@JasonITB](https://forum.formlabs.com/u/JasonITB)\ **Post date:** [December 9, 2021, 5:04am UTC](https://forum.formlabs.com/t/cartridge-dispense-error/32649/1 "2021-12-09T05:04:04Z")
I just started up my first print with a new form 3 and a new everything using Clear V4. When I started the print it kept on saying cartridge dispense error, I got past this by clicking retry and that fixed it every time but it’s annoying how I need to go click a button on my printer every 30 minutes. I checked the support page and I check everything on there, my printer’s firmware is up to date, the vent cap is open, checked it, and loosened the vent cap. How do i prevent this happening in the future? ---
**Author:** ![KBKB](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/kbkb/32/18387_2.png) [@KBKB](https://forum.formlabs.com/u/KBKB)\ **Post date:** [December 9, 2021, 3:32pm UTC](https://forum.formlabs.com/t/cartridge-dispense-error/32649/2 "2021-12-09T15:32:09Z")
I, too, have to do this on many prints. Especially when changing tanks but also after larger prints, the dispensing part of the print errors out every 15-30 mins until enough resin is dispensed. This is very annoying and disruptive to the workflow. I am curious how this can be resolved. ---
**Author:** ![illuminatedRS](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/illuminatedrs/32/20334_2.png) [@illuminatedRS](https://forum.formlabs.com/u/illuminatedRS)\ **Post date:** [January 18, 2022, 2:36am UTC](https://forum.formlabs.com/t/cartridge-dispense-error/32649/3 "2022-01-18T02:36:34Z")
would be nice to hear from formlabs on this…l ---
**Author:** ![KBKB](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/kbkb/32/18387_2.png) [@KBKB](https://forum.formlabs.com/u/KBKB)\ **Post date:** [January 19, 2022, 8:20pm UTC](https://forum.formlabs.com/t/cartridge-dispense-error/32649/4 "2022-01-19T20:20:35Z")
Agreed. I’m hearing that this is a known and big issue, so I’m sure that there are other posts on it. I just haven’t found them as of yet… ---
**Author:** ![jcamper](https://avatars.discourse-cdn.com/v4/letter/j/54ee81/32.png) [@jcamper](https://forum.formlabs.com/u/jcamper)\ **Post date:** [August 5, 2023, 1:48pm UTC](https://forum.formlabs.com/t/cartridge-dispense-error/32649/5 "2023-08-05T13:48:33Z")
Did you figure out how to fix this issue? ---
**Author:** ![RD\_lab](https://avatars.discourse-cdn.com/v4/letter/r/a88e57/32.png) [@RD\_lab](https://forum.formlabs.com/u/RD_lab)\ **Post date:** [August 7, 2023, 6:05pm UTC](https://forum.formlabs.com/t/cartridge-dispense-error/32649/6 "2023-08-07T18:05:41Z")
One method I’ve found is to ensure the rubber dispense valve on the cartridge is not “self-healed” on some new cartridges (quite a few, almost all tbh) you will notice the valve is sealed, and you’ll need to slit it with an exacto blade, BUT be cautious not to slit the valve any more than the tiny indicators show. Also, be sure to agitate / shake the cartridge prior to using it. (especially white) And finally, filling it manually is always an option (but an option of last resort) ---
**Author:** ![Corey\_M](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/corey_m/32/18987_2.png) [@Corey\_M](https://forum.formlabs.com/u/Corey_M)\ **Post date:** [August 9, 2023, 3:19pm UTC](https://forum.formlabs.com/t/cartridge-dispense-error/32649/7 "2023-08-09T15:19:24Z")
Hi @RD_lab and @jcamper , Thanks for bumping this thread, I’m sorry to see we didn’t get back to folks back in the earlier days of this thread. We do recommend opening the valve, but we actually recommend using something with a more blunted edge than an Xacto knife to make sure that the slit isn’t too fine and cause the valve to leak resin into the drip tray. If a blunt-edged tool is not sufficient to open the valve, please [contact Support](https://support.formlabs.com/s/contact-support?language=en_US) so that we can log the lot number and get you a replacement cartridge.