Some legacy printers won't print correctly. SuperSpice currently only supports those printers that support vector printing. Examples of such printers include the Epson 600. A work around to this is to copy the circuit and/or waveforms to the Windows clipboard and paste into M.S. Word or Paintbrush etc, and print from there.
Black/White Printing Mode
To force printing to be black and white use the schematic options setup dialog "SO", colours tab and set the Black/White check box.