Prints with a 3 inch left margin 2hich losses imprtant data
when printing data tables on line 5 columns wide, the left margin is about 3 inches wide which removes the fifth column on the right. (The Firefox printer page setup table is set to 1/4 " n the right and left sides.)
Alle svar (1)
Try the reset described here and make sure you reset all the prefs for that printer:
http://kb.mozillazine.org/Problems_printing_web_pages#Reset_printer
When you are done with all the resets, restart Firefox and see if that fixed your problem.
When you get to the prefs for the right and left margins, you'll probably see some very long Value strings that are far greater than 1/4".