Yes, it's called the wagon wheel test plot, the square/circle test plot, and the X08 test plot.
They're accessible via the special diagnostic events mentioned in the manual. No software required.
I've attached a few pages from the Gerber manual explaining the tests. I've also included a couple pages of the error code troubleshooting guide if you should run into issues.
A few years ago, I drove two hours to look at a nearly new GS15+. I didn't have a laptop to take with me, but I took a pen tool and a roll of pounce paper and ran the aforementioned diagnostics. I went home with an absolutely perfect plotter for $1,200 US.
Had the seller known about the on-board diagnostics, they could have sold it for over twice what I paid.
JB
i made the tests they came out perfect..
i also managed to setup the gerber edge 2...
but im still having problems with the hs15 plus...
first serial cable i tried , i couldnt find win drivers for the usb adapter... it was from the user before me he had mac...
second cable i tried, seemed to be ok the usb adapter com port was working, i was able to send jobs BUT i dont know what it was doing looked like when a child was drawing... the seeeings of the com port inside windevice manager and flexi both were like it says inside of the hs15 manual...
i wanted to try out one more cable, then while removing, i noticed the port on the plotter is kind of loose on one side, it gets pushed inside when im connecting a cable...
there is no resistance (there on one side )
the pins dont go inside all the way on one side i think this could be the reasson why it cutted like a little child...maybe no real connection were established because a few pins couldnt send receive...
im not sure if i should take a look inside?!?!