i'm having trouble printing to a HP1220c. also have had trouble sending out files to plot, the tech guy at the blueprint shop tried to convert files to PDF but the drawings were not alligned properly on the page. we purchased an HP1220 to print half-size and i'm having the same problem. when i change the paper size (print area) to Arch B (12x18) page adjusts on the screen but the dialog box still says Arch D (24x36). i move the drawing area frequently to print portions of the drawing on 8.5x11. i'm wondering if this could be the cause???