The nozzle is far away from the hot bed and cannot print normally

Hello friends：

As the title says, my printer is far away from the extruder, and it still cannot print normally, even though I have already leveled the bed.

In fact, even if I put the nozzle as close as possible to the hot bed (0.1mm) before printing,

still have to stay away from the hot bed when printing. I don't know where this is going wrong.


please help me.