Comment 12 for bug 217151

I think i've found the fix for this, looking through the Epiphany code, specifically the embed/mozilla/GeckoPrintService.cpp file, there's a line (around 737-739) that reads:

" gtk_print_settings_set_scale (aGtkSettings, 1.0); "

But the GNOME Library Documentation states:

" scale : the scale in percent "

So, the solution turned out to be changing:

    gtk_print_settings_set_scale (aGtkSettings, 1.0);

To:

    gtk_print_settings_set_scale (aGtkSettings, 99.0);

(Or, whatever size you actually want to scale at)