Seiko TM-U590/U590P - Manual (Page 52)

A-4 Dip Switch Setting
Changing the DIP switch settings
If you need to change settings, follow the steps below to make your
changes:
CAUTION:
Turn off the printer while removing the DIP switch cover to
prevent an electric short, which can damage the printer.
1. Make sure the printer is turned off.
2. Remove the screw from the DIP switch cover. Then take off the
DIP switch cover, as shown in the illustration below.
3. Set the switches using a pointed tool, such as tweezers or a
small screwdriver.
4. Replace the DIP switch cover. Then secure it with the screw.
The new settings take effect when you turn on the printer.
DSW1 DSW2