Avery Dennison MONARCH 939I Operating Instructions Manual page 50

You can also set the communication values by using the Keyboard's Main
Menu. The keyboard defaults are 9600 Baud, 8-bit Word Length, 2 Stop
Bits, No Parity, and No Flow Control.
Press X on the keyboard within the first two seconds when the
1.
printer/keyboard are turned on to see the Keyboard's Main Menu.
Select Setup. Press L or R until you see
2.
Press Enter. You see a list of communication options to change (Baud
3.
Rate, Word Length, Stop Bits, Parity, and Flow Control).
Press Enter to change the Baud Rate. Use L or R to scroll through
4.
the choices. Press Enter when the Baud Rate you need appears.
Continue through the list for the other communication settings and make
changes if necessary.
C-6 Configuring the System
SETUP
COM2 (Scanner)
COM2 (Scanner)
Baud Rate