Epson LT-286 - Manual (Page 22)

Keyboard DIP Switches
The DIP switches above the keyboard are numbered 1 through 4.
To access these switches, lift the panel above the keyboard by
pressing inward on both sides of the cover as you lift it up:
The system functions controlled by the keyboard DIP switches,
shown below, are listed in Table l-l.
Setting Up Your System 1-9