@dc42 In the end, everything worked. Many, many thanks for your help.
I did it Only because You shared your thoughts and experience with me.
Without you, I would never have done it.
In gratitude, let me share my experience with you.
It is not enough, it can be useful ...
With best regards.
@adavidm I'm afraid that you are absolutely right. That's how I understood the instruction ...
Sorry guys, I'm a total novice.
I just needed an instruction for dummies.
After bed replacing from 18cm to 22cm, printer start change the geometry of the objects in corners.
Can you please tell me how to properly configure the firmware for new bed size?
@bot WOW, mister, you are just a magician!
It all worked!
Thank you very much! 
Thank you so much, now everything works as it should!
Honestly, the help and support of key figures like you makes this forum one of the best in 3D printing!
Please stay with us! )
@Veti Thank you so much, now everything works! Five* )