Print to Fit Problem
 

I have a spreadsheet with grouped rows, and when I select print to fit
(1by1), so I can print the sheet with or without showing the grouped rows,
the sheet scales down to <100%, even though it would fit on 1by1 when
manually scaled back to 100%. Leaving unsightly white space at the bottom
and at each edge of the page. Are the grouped rows causing this issue, is
there a way to fix this without having to remove the grouping and hide the
rows? If they aren't causing the issue, what settings might be?

Thanks.