This is really simple.
- Create four charts as you would normally do
- Create a new sheet
- Copy and past the 4 charts to the new page.
- Place them (and resize them) so that they appear one page. Do print preview and adjust accordingly. Go to margin and change to 0″ top and bottom to give more area.
- click anywhere outside the cart and click print.
Generally it is good to place 3 charts in one page one below the other. Squeezing 4 charts on one page would make them a bit too small.