![](/images/new-backgrounds/1172391/172391459x1.webp)
Serial
RS-422A interface
The serial interface of this printer was set to
In
(or similar device) equipped with an
In
Note______________________________________________________________________
The changing of the main circuit board jumper connector should be carried out only by an authorized dealer or a certified technician. We shall not be liable for damage due to improper changing of this main circuit board jumper connector.
Note______________________________________________________________________
The following instructions are intended for the technician only.
Note on Handling the Main Circuit Board
Before touching the main circuit board, touch a water pipe or other large metal object to discharge yourself of static electricity. While doing the work, it is recommended that you wear an antistatic wrist strap.