Our k8400 has 2 extruders.
When loading filament to this extruder, it heats up and loads the filament.
But, when I try to print (after selecting EXTR2 on the object in Vertex 3D Printer Repetier-Host V1.0.6) nothing comes out of Extruder 2.
I have swapped the chips (from Extr1 to Extr2) beneath the printer. This did not work so I swapped them back.
Anyone got any idea why this happens?