How to do Zero key Setting in En29

Hello every one ! I have problem when adjust zero key setting in En29. I don't know how to do it. I slid it along the tangent direction to the ink feed cylinder, but the result was not as expected. Please guide me on how to perform this technique accurately. Here are some results that I have tried. Thank you !

 

Dont know the machine.
I'll do it on GL 40 like this:

Choose zero position in pqc.
There have nothing to be selected when adjust zero position because it give errors !!

Find the key that is equal to mooost of the ink slides.
Pull the measuring tool over one of these slides and read the result. Find on that got the right result for u.
Try to adjust all other slides by eye and only take some example with the tool.

We've got other tool that works well.
Erichson wheel much easier.

 

In EN29, go to the settings menu, find the Zero key option, enter the required values, and then confirm the reset. This procedure updates the calibration and creates a fresh point of reference for precise measurements.

 

My machine use PQC U for control. It don't have this function so we only use Komori tool for it.