Font size inconsistent in Print view across multiple pages

Hi All

I have multiple sheets and reports, all the same font & size (Arial 10). When I go to print my reports, some pages show the font clearly, and other pages the quality is compromised/ different font size so my text over different pages looks inconsistent. I saw another thread from 2015 addressing a similar issue but without resolve- any idea if this is being addressed, or what the best workaround is?

I have gone back through all my sheets to increase the font size to 12, but this hasn't helped- its my gantt chart that looks fine when I print, pages with lots of text seem to be worse, with the text grainy/ pixelated.

Thanks