PRESETS： The power supply is shipped in 2 machine modes, in two machine modes there is one voltage preset for the L button and one for the S button in the config menu you can change to 4 machine modes in 4 machine modes there are two presets for each of the land S buttons pressing the L button will access and toggle between the two liner presets and pressing S button will access and toggle between the two shader presets.

FOOT SWITCH MODES: Your ED-280 has 2 footswitch mode options momentary mode is the conventional operation mode that most artists are using to where power is supplied to the machine only when the pedal is actuated. Maintained mode fuctions as a typical maintained switch's ush on. Push off. Be carefull not to leave maintained mode activated while machine is unattended or bound up. This situation could damage the power supply or even your machine. One example of a bound up machine is when ink dries in your tube and your A-bar cann't break the needles free. To toggle between maintain mode and momentary mode, press and hold the L or S button for 1.5 sec.