Hi Nemes,
I'm not a technical support of Autel, maybe this suggestion can help you out.
1. Try first a test page print in your computer if it works.
2. The MaxiSys printer application is install in your computer and must be runing.
3. It must be in the same network.
4. When you print in MaxiSys Tablet you must see your computer that has MaxiSys Print install.
5. If you see that computer in your Maxisys tablet, select that computer and you are ok to print.
6. Must be your computer is connected to the printer, and communicate with the printer.