I've made several requests for after-sales service, but no one has been able to find me a clear, precise solution. One time I'm told I need to replace a part, then another I need to replace another. When I ask for the price, no one answers, and this has been dragging on for weeks.
I will therefore request a full refund for the machine, because clearly no one knows how to repair it. I offer you another solution. It would be to send us a DTF 5-head machine (without the oven, the oven works fine). If you don't find a solution, I will call my lawyers and open a dispute file with Alibaba.