HP Laserjet 1200 - Manual (Page 24)

22 Chapter 1 Getting to know the printer EN
Turning the power off
If the printer requires 110-127 volts of power, you must unplug
the printer to turn the power off. If the printer requires 220-240
volts, you can switch the printer off (the switch is located on the
left side of the power plug) or unplug it.
WARNING! To ensure safety when working inside the printer for any reason, unplug
the printer.
Understanding voltage conversions
Because of the different specifications, Hewlett-Packard does not
offer a voltage conversion or support the voltage conversion of
the U.S. version of the HP LaserJet family of printers for foreign
use. If you plan on using the equipment outside of the United
States, Hewlett-Packard advises you to purchase the products in
the country/region where you will use them.
CAUTION Check your printer’s voltage requirement before you plug it in. Printers
that require 110-127 volts of power will not work with 220-240 voltage
outlets.