Denso QK11-U User Manual page 8

Never cover or wrap up the QK11-U in a cloth or blanket.
Doing so could cause the unit to heat up inside, deforming its housing,
resulting in a fire.
Always use the QK11-U in a well-ventilated area.
Do not insert or drop foreign materials such as metals or anything
inflammable through the openings (vents or scanning window) into the
QK11-U.
Doing so could result in a fire or electrical shock.
Do not scratch or modify the QK11-U or its interface cable. Do not
bend, twist, pull, or heat the cable.
Doing so could damage the QK11-U or its interface cable, creating a
fire hazard.
Do not put heavy material on the QK11-U or its interface cable, or allow
the cable to get pressed under heavy material.
Do not look into the light source from the scanning window of the
QK11-U or do not point the scanning window at other people's eyes.
Eyesight may be damaged by direct exposure to this light.
Do not use the QK11-U if your hands are wet or damp.
Doing so could result in an electrical shock.
Never use chemicals or organic solvents such as benzene and thinner
to clean the housing. Do not apply insecticide to the QK11-U.
Doing so could result in a marred or cracked housing, electrical shock
or fire.
Be sure to hold the connector when unplugging the scanner connector.
Pulling the cord could damage it, which could lead to burning, electric
shock or a fire.
CAUTION
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