Here's how this Royal was typing prior to any fiddling;
Note how uneven the upper and lower cases were. It took me a few goes at getting it how I wanted it.
The top section of this next scan shows how I went after a few adjustments. The bottom section shows how it looked after my third or fourth attempt at adjusting it...without making note of whether I had turned the screwdriver clock-wise or anti clock-wise.
Onwards and upwards, teeritz! I continued on until I got a result that I was happy with. In the end, I was more amazed at how simple it was. Once you know where to start.