Epson Epson - Manual (Page 61)

If you are using Windows, press Ctrl Alt Del and follow the
instructions on the screen.
If these methods do not work, you may need to reset the
computer.
Do not turn off the computer to exit a program or stop a
command unless you have to, because the computer clears any
data you did not save.
Resetting the Computer
Occasionally, you may want to clear the computer’s 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. If you reset
the computer without properly exiting a program, you may
lose data.
To reset your computer, press Ctrl Alt Del and then follow the
instructions on the screen. You can also press the RESET button.
The screen displays nothing for a moment, and then the
computer reloads the operating system.
3-10 Using Your Computer