Epson Endeavor - Manual (Page 41)

You can change the processor speed temporarily by entering
one of the following commands from the numeric keypad on
your keyboard:
To select low speed, press
To select high speed, press
(Hold down the key and the key simultaneously
and then press the or key on the numeric keypad.)
The speed setting remains in effect until you do the following:
Press (Delete)
Turn off the computer
Change it with another keyboard command.
Using Your Computer
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