Epson TM-L90 Technical Reference Manual page 75

TM-L90/TM-L90 Peeler Model Technical Reference Guide
CAUTION:
Since the buzzer drive signal and the cash drawer drive signal are common in the
printer, do not use the same connector pin numbers to output the signal for the buzzer
and the cash drawer.
Note:
For detailed information about ESC/POS commands, see the ESC/POS Command Reference. For details
on how to obtain this manual, see "Introduction of Control Methods" on page 85.
For detailed information about the driver control, see the manual for each driver.
Connecting to the Host Computer and Options 75