To print the graphic line on dot matrix printer, the character set should be 
set to graphic.

For the Panasonic KXP-P2123, please see pages 3-22 and 3-29 of Operating 
instruction manual.
1. Turn the power switch on while press the "Function" switch.
2. Press the "Super Quiet" when four rows lit until the second row ("Pitch") 
lit and other row off 
3. Press the "Load Park" switch to set to the graphic 
mode.  
4. Press the "Function" switch to save.

To print out the current settings of the printer:
1. Turn the power switch on while press the "Function" switch.
2. Make sure that all rows indicators are lit.
3. Press "Tear Off" switch
