Printing graphics in c# and wpf.

Question

I am printing some graphics in c# and wpf.

I can set up the printer ok and print out the graphics.

I can print in 300 dpi and 600 dpi by setting printer resolution fine.
If I set printer resolution to 9600 the print routine reverts to 600 dpi x and 600 dpi y.

According to printer datasheet it should go up to 9600 x and y.

The resolution is being set ok and comes back as -4 which is correct for 9600.
-1 gives 300 dpi and -2 gives 600 dpi.

Answer 1

I managed to fix it.
I wasnt scaling pixels for printer accurately enough.

This fixed it. A factor of 10 better.
e.Graphics.ScaleTransform(100f / 1000, 100f / 1000);