Basic print issues (orientation, paper size, etc)

[plang]

I got printing size problem in A6 and A3+ (other formats not checked) with GIMP 2.10.14 (and previous vesion).
My printer is an Epson SC-P600 / Windows 7.

When using the command "File... Page size", GIMP is updating the file "print-page-setup" which is located in C:\Users\(user)\AppData\Roaming\GIMP\2.10\

I am using the following workaround.
1/ I do not use the command "File, Page size..." any more.
2/ I always print in portrait mode (if necessary, rotate the image by 90°)
3/ I am just updating the setup file myself using files like the following :

They are created in the folder of my choice.
Command file "A3+.BAT" to be executed in place of "File, Page size..."
--------------------------------------------------------------------------------
Echo off
Echo #
Echo # Setup folder : C:\Users\(user)\AppData\Roaming\GIMP\2.10\
Echo #
Copy "print-page-setup-A6" "C:\Users\(user)\AppData\Roaming\GIMP\2.10\print-page-setup"
Echo #
Echo # [print-page-setup] updated set to A6
Echo #
Pause

Setup file "print-page-setup-A3+"
(I just patches a copy of the existing setup file)
------------------------------------------------------
[print-page-setup]
PPDName=
DisplayName=A3+
Width=329
Height=483
MarginTop=0
MarginBottom=0
MarginLeft=0
MarginRight=0
Orientation=portrait

To print in A6, I just followed the same procedure by creating two other files ("print-page-setup-A6" and A6.BAT)

Good luck !

Pierre