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Key to Symbols
The following symbols are used in the documentation for this product. See the specific warnings
and cautions at appropriate points throughout this guide.
WARNING:
Warnings must be followed carefully to avoid serious bodily injury.
CAUTION:
Cautions must be observed to avoid minor injury to yourself, damage to your
equipment, or loss of data.
Note:
Notes have important information and useful tips on the operation of the product.
Safety Precautions
This section presents important information to ensure safe and effective use of this product.
Please read this section carefully and store it in an accessible location.
WARNING:
❏ Turn off the power switch immediately and unplug the power cord from the electrical outlet
if the TM-U230 produces smoke, a strange odor, or unusual noise. Continued use may lead
to fire or electric shock.
❏ Do not modify the printer or perform any disassembly operation not described in this
manual. Doing so could result in a fire or shock hazard.
❏ Use only the designated power supply. Use of a different power supply could cause a fire or
shock hazard.
❏ Never insert or disconnect plugs with wet hands. Doing so may cause a serious shock.
❏ Never drop or push objects into the product through openings. This could cause a fire or
shock.
❏ If the printer is exposed to water or other liquid, turn off the POWER button and disconnect
the power cord immediately. Continued use under these conditions could cause a fire or
shock hazard.
❏ Do not connect the power cord to an overloaded wall outlet. This may cause a fire hazard.
Connect the printer directly to a wall outlet.
❏ Handle the power cord with care. Incorrect handling may lead to fire or shock.