sumpfeule

Create /etc/udev/rules.d/99-usb-serial.rules: 

SUBSYSTEM=="usb", ACTION=="add" ATTR{idVendor}=="01a86", ATTR{idProduct}=="7523", RUN+="/home/pi/connect.py", TAG+="systemd"

ATTR{idVendor}=="01a86", ATTR{idProduct}=="7523" are printer specific and for an Sovol SV06. You can find yours with lsusb on your pi while the printer is connected.


The script  mentioned in the rule (/home/pi/connect.py) looks as follows:
```
#!/usr/bin/python3