Ricoh M160 Service Manual page 15

READ THIS FIRST
Important Safety Notices
Important Safety Notices
Prevention of Physical Injury
1. Before disassembling or assembling parts of the main machine and peripherals, make sure
that the power cord of the main machine is unplugged.
2. The wall outlet should be near the machine and easily accessible.
3. Note that some components of the machine and the paper tray unit are supplied with
electrical voltage even if the main power switch is turned off.
4. If any adjustment or operation check has to be made with exterior covers off or open while the
main switch is turned on, keep hands away from electrified or mechanically driven
components.
5. The inside and the metal parts of the fusing unit become extremely hot while the machine is
operating. Be careful to avoid touching those components with your bare hands.

To prevent a fire or explosion, keep the machine away from flammable liquids, gases,
and aerosols.
Health Safety Conditions
1. Toner and developer is non-toxic, but if you get either of them in your eyes by accident, it may
cause temporary eye discomfort. Immediately wash eyes with plenty of water. If unsuccessful,
get medical attention.
2. This machine, which uses a high voltage power source, can generate ozone gas. High ozone
density is harmful to human health. Therefore, the machine must be installed in a
well-ventilated room.
Observance of Electrical Safety Standards
1. This machine and its peripherals must be serviced by a customer service representative who
has completed the training course on those models.
2. The NVRAM on the system control board has a lithium battery which can explode if replaced
incorrectly. Replace the NVRAM only with an identical one. The manufacturer recommends
replacing the entire NVRAM. Do not recharge or burn this battery. Used NVRAM must be
handled in accordance with local regulations.