My printer has suddenly started to print very bad quality prints (see before and after with the same file).
I have tried with two NEW cartridges, a NEW tank, cleaning the transparent surfaces, updating the formware, updating PreForm,… but nothing solves it.
I have noticed that, after printing, the remaining resin in the tank has a lot of “cured dots”, while the remaining resin in the tank is perfect. It is so hard the difference that the resin coming from the tank cannot be filtered while the coming from the cartridge is easily passing through the filter (take a look to the filter).
After some time printing, you can notice the dots at tank bottom when wipping:
I have tried with two different resin cartridges having the same result. The fabrication date is 20181212AH.
Could anyone help me to solve the problem?
Thanks and best regards,