Ricoh J012 Service Manual page 28

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.
Power Plug and Power Cord
Before servicing 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 and cause a fire.
Inspect the entire 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
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