It has come to our attention that in the latest batch of K8200 printers there is a slight problem with the manufacturing finish of our nozzles. Some have a slight chamfer (see picture below) on the orifice, this can result in a bad surface finish of your 3D prints.
In case your nozzle has this problem you can start a support ticket here:
And get a free replacement nozzle.
We are sorry for the inconvenience