[Samba] Kyocera P6230cdn driver installation on print server fails

[Matthias]

Hello,

I am trying to install the driver on my print server. I used

https://wiki.samba.org/index.php/Setting_up_Automatic_Printer_Driver_Downloads_for_Windows_Clients

as a guide. I tried to install

- KX driver, 32 and/or 64 bit
- KX-XPS driver, 32 and/or 64 bit
- Of both drivers the 64bit variants the installed driver package from system32 directory

With all drivers I get the message

"Add Printer Driver Wizard
Unable to install Kyocera ECOSYS P6230cdn KX (XPS), Type 3 - User Mode, x64 driver.
This operation is not supported."

after files have been copied to the print$ share into x64/{...} or
W32X86/{...} directories. I can't find anything enlightening in the
samba log files (low log level shows nothing helpful, high log level
shows to much) and eventvwr (AFAIR Event ID 215 which brings nothing
helpful). I have set os_major/minor to 6/0. I don't believe, that
rights are missing.

Any ideas?

Thanks
Matthias