Lithium Batteries - Ricoh G147 Service Manual

- Safety Devices -
Never remove any safety device (a fuse, thermistor, etc.) unless it requires
replacement. Always replace a safety device immediately.
Never do any procedure that defeats the function of any safety device. Modification
or removal of a safety device (fuse, thermistor, etc.) could cause a fire and personal
injury. After removal and replacement of any safety device, always test the operation
of the machine to ensure that it is operating normally and safely.
For replacement parts use only the correct fuses, thermistors, circuit breakers, etc.
rated for use with the machine. Using replacement devices not designed for use with
the machine could cause a fire and personal injuries.
- Organic Cleaners -
During preventive maintenance, never use any organic cleaners (alcohol, etc.) other
than those described in the service manual. (Refer the "2. Preventive Maintenance"
in the Service Manual.)
Make sure the room is well ventilated before using any organic cleaner. Always use
organic solvents in small amounts to avoid breathing the fumes and becoming
nauseous.
Switch the machine off, unplug it, and allow it to cool before doing preventive
maintenance. To avoid fire or explosion, never use an organic cleaner near any
component that generates heat.
Wash your hands thoroughly after cleaning parts with an organic cleaner to avoid
contamination of food, drinks, etc. which could cause illness.

- Lithium Batteries -

Always replace a lithium battery on a PCB with the same type of battery prescribed
for use on that board. Replacing a lithium battery with any type other than the one
prescribed for use on the board could lead to an explosion or damage to the PCB.
Never discard used batteries by mixing them with other trash. Remove them from
the work site and dispose of them in accordance with local laws and regulations
regarding the disposal of such items.
- Ozone Filters -
Always replace ozone filters as soon as their service life expires (as described in the
service manual). An excessive amount of ozone can build up around machines that
use ozone filters if they are not replaced at the prescribed time. Excessive ozone
could cause personnel working around the machine to feel unwell.
- Power Plug and Power Cord -
Before serving the machine (especially when responding to a service call), always
make sure that the power plug has been inserted completely into the power source.
A partially inserted plug could lead to heat generation (due to a power surge caused
by high resistance) and cause a fire or other problems.
Always check the power plug and make sure that it is free of dust and lint. Clean it if
necessary. A dirty plug can generate heat which could cause a fire.
Inspect the length of the power cord for cuts or other damage. Replace the power
cord if necessary. A frayed or otherwise damaged power cord can cause a short
circuit which could lead to a fire or personal injury from electrical shock.