Print Misalignment with Canon proGRAF Pro-1000, DarkTable 4.6, Linux Mint 22.1

[GeekMcBean]

I'm printing on both 5"x7" and A4 paper with equal margins set L/R/T/B greater than the printer's minimum. When the TurboPrint print preview opens it shows the image shifted on the page to what appear to be the minimum margins top & right leaving larger margins left & bottom but the same image size as in DarkTable. I can correct it to some degree by reducing the left and bottom margins but it is hit & miss.