Is the entire thing reduced to a small part of the page when you print? Look at the "Print Preview" to see how it appears before you send it to the printer, and you might find the setting "shrink to fit" is showing (and is messed up). Set it to the 100% setting to see how much shows or if it is off the margins, then adjust it down to the percentage that fits best. I bet the "shrink" setting got messed up if you printed something that was very large and the printer software fitted it to the page and never resized it back - so now it makes all normal stuff display very tiny on the printed sheet.

SRS