Epson EL 3S/33 - Manual (Page 37)

Stopping a Command or Program
You may sometimes need to stop a command or program while
it is running. If you have entered a DOS or application program
command that you want to stop, try one of the following:
Press Pause
Hold down Ctrl and press C
Hold down Ctrl and press Break.
If these methods do not work, you may need to reset the
computer as described below. Do not turn off the computer to
exit a program or stop a command unless you have to, because
the computer erases any data you did not save.
Resetting the Computer
Occasionally, you may want to clear the computer’s current
settings or its memory without turning it off. You can do this
by resetting the computer.
For example, if an error occurs and the computer does not
respond to your keyboard entries, you can reset it to reload
your operating system and try again. However, resetting erases
any data in memory that you have not saved; so reset only if
necessary.
Caution
Do not reset the computer to exit a program. Some programs
classify and store new data when you exit them in the
normal manner. If you reset the computer without properly
exiting a program, you may lose data.
Using Your Computer 2-5