Epson Progression U12 - Manual (Page 21)

Turning On the Computer
Before turning on your computer, check the following safety
rules to avoid accidentally damaging your computer or injuring
yourself:
Do not connect or disconnect any power cables or
peripheral device cables (including the mouse or keyboard)
when the computer’s power is on.
Never turn on the computer with a protective card in a
5.25-inch diskette drive.
Never turn off or reset your computer while a disk drive
light is on. This can destroy data stored on the disk.
Always wait at least 10 seconds after you turn off the
power before you turn it on again. This prevents possible
damage to the computer’s electrical circuitry.
Follow these steps to turn on your system:
1. Turn on the monitor, printer, and any other peripheral
devices connected to the computer.
2. If you do not have a hard disk (or if you have not installed
the operating system on the hard disk), insert your main
operating system diskette in drive A.
Note
If you do not have a hard disk, you need to insert the
operating system diskette each time you turn on your
system so the computer can copy the operating system
to its memory. See your operating system manual for
more information.
1-2 Using Your Computer