Canon imagePROGRAF iPF510 - Manual (Page 287)

Printing enlargements or reductions
12.
Access the Page Setup pane.
13.
Make sure the B Page Size setting matches the original size as selected in A Page Size in the
Page Attribute dialog box-in this case, ISO A4.
14.
Select the C Enlarged/Reduced Printing check box.
Enhanced Printing Options 273