Omron NT620S Operation Manual page 121

System Maintenance
Checking the Printer Interface
108
Check communication with the printer by using the menu operation from the Sys-
tem Menu shown below.
SYSTEM MENU
Quit
Transmit Mode
Maintenance Mode
Expansion Mode
MAINTENANCE MENU
Quit
Display History
I/O Check
PT Settings
Init. Memory
Memory Switch
I/O CHECK MENU
Quit
Touch Switch
Comm. I/F
EL Display
Buzzer
LED
Select "Maintenance Mode".
V0.0
Battery
DIP Switch
Screen Memory
Printer I/F
Calendar & Clock
Section 3-9
Select "I/O Check".
Select "Printer I/F".