Star Micronics SP500 Series User Manual page 30

6-4-2. Hexadecimal Dump Mode
Each of the signals sent from the computer to the printer will be printed out in
hexadecimal code.
This function allows you to check if a control code sent to the printer by the
program being used is correct or not. The last line is not printed if its data is less
than one full line. However, if the FEED switch is pressed, the last line will be
printed. To turn off the mode, it is necessary to turn off the printer completely.
– 27 –