Canon lbp5970 Getting Started Manual page 10

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Be careful when handling the main board, expansion board, RAM,
and ROM. Touching the edges or a sharp portion of the main board,
expansion board, RAM, and ROM may result in personal injury.
•
Turn OFF the power switch for safety when the printer will not be
used for a long period of time such as overnight. Also, turn OFF the
power switch and unplug the power plug for safety when the printer
will not be used for an extended period of time such as during
consecutive holidays.
•
Keep your hands or clothing away from the roller in the output area.
Even if the printer is not printing, sudden rotation of the roller may
catch your hands or clothing, resulting in personal injury.
•
The laser beam can be harmful to human bodies. Since radiation
emitted inside the printer is completely confined within protective
housings and external covers, the laser beam cannot escape from
the printer during any phase of user operation. Read the following
remarks and instructions for safety.
- Never open covers other than those instructed in this manual.
- Do not remove the caution label attached to the cover of the laser
scanner unit.
- If the laser beam escapes from the printer, exposure may cause
serious damage to your eyes.
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Maintenance and Inspections
WARNING
•
When cleaning the printer, turn OFF the printer and computer, remove
the USB cable, and then unplug the power plug. Failure to observe
these steps may result in a fire or electrical shock.
•
Unplug the power plug from the AC power outlet regularly, and clean
the area around the base of the power plug's metal pins and the AC
power outlet with a dry cloth to ensure that all dust and grime is
removed. If the power plug is plugged for a long period of time in a
damp, dusty, or smoky location, dust can build up around the power
plug and become damp. This may cause a short circuit and result in a
fire.
•
Clean the printer using a slightly dampened cloth with water or a mild
detergent diluted with water. Do not use alcohol, benzene, paint
thinner, or other flammable substances. If flammable substances come
into contact with electrical parts inside the printer, it may result in a fire
or electrical shock.
•
There are some areas inside the printer which are subject to high-
voltages. When removing jammed paper or when inspecting the inside
of the printer, do not allow necklaces, bracelets, or other metal objects
to touch the inside of the printer, as this may result in burns or
electrical shock.
•
Do not throw a used drum cartridge, toner cartridge, or waste toner
container into open flames, as this may cause the toner remaining
inside the cartridge to ignite, resulting in burns or a fire.
CAUTION
•
Never attempt to service this printer yourself, except as explained in
this manual. There are no user serviceable parts inside the printer.
Adjust only those controls that are covered in the operating
instructions. Improper adjustment could result in personal injury
and/or damage requiring extensive repair that may not be covered
under your Limited Warranty.
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