Sam,
I'm trying to understand exactly the nature of your camera's problem. You mention "L jpeg" in the sense that the file sizes are too large. What image type were you trying to capture?
Also, what was your process for trying to set the camera for other than L jpeg? What buttons did you press, what menus did you display, and what, exactly, happened? Did you just not see the expected choices? Did you see and select a different choice, and got an error message? Did the camera appear to "accept" your choice, but simply continued to shoot L jpeg?
Last, when you print 9x9 on your Dye Sub, what resolution and pixel dimensions do you use?
Perhaps if you can elaborate, someone here can help.
Best Regards,
Jim