diff --git a/src/mess/drivers/atarist.c b/src/mess/drivers/atarist.c
index c45a7a20581..9d65391dd60 100644
--- a/src/mess/drivers/atarist.c
+++ b/src/mess/drivers/atarist.c
@@ -2265,6 +2265,8 @@ static MACHINE_CONFIG_START( st, st_state )
 	MCFG_CENTRONICS_ADD("centronics", centronics_printers, "image")
 	MCFG_CENTRONICS_BUSY_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, i0_w))
 
+	MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", "centronics")
+
 	MCFG_RS232_PORT_ADD(RS232_TAG, default_rs232_devices, NULL)
 	MCFG_SERIAL_OUT_RX_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, write_rx))
 	MCFG_RS232_OUT_DCD_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, i1_w))
@@ -2330,6 +2332,8 @@ static MACHINE_CONFIG_START( megast, megast_state )
 	MCFG_CENTRONICS_ADD("centronics", centronics_printers, "image")
 	MCFG_CENTRONICS_BUSY_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, i0_w))
 
+	MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", "centronics")
+
 	MCFG_RS232_PORT_ADD(RS232_TAG, default_rs232_devices, NULL)
 	MCFG_SERIAL_OUT_RX_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, write_rx))
 	MCFG_RS232_OUT_DCD_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, i1_w))
@@ -2404,6 +2408,8 @@ static MACHINE_CONFIG_START( ste, ste_state )
 	MCFG_CENTRONICS_ADD("centronics", centronics_printers, "image")
 	MCFG_CENTRONICS_BUSY_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, i0_w))
 
+	MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", "centronics")
+
 	MCFG_RS232_PORT_ADD(RS232_TAG, default_rs232_devices, NULL)
 	MCFG_SERIAL_OUT_RX_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, write_rx))
 	MCFG_RS232_OUT_DCD_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, i1_w))
@@ -2488,6 +2494,8 @@ static MACHINE_CONFIG_START( stbook, stbook_state )
 	MCFG_CENTRONICS_ADD("centronics", centronics_printers, "image")
 	MCFG_CENTRONICS_BUSY_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, i0_w))
 
+	MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", "centronics")
+
 	MCFG_RS232_PORT_ADD(RS232_TAG, default_rs232_devices, NULL)
 	MCFG_SERIAL_OUT_RX_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, write_rx))
 	MCFG_RS232_OUT_DCD_HANDLER(DEVWRITELINE(MC68901_TAG, mc68901_device, i1_w))