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3. OPERATING PRECAUTIONS
Be careful of the following precautions and use the products properly in order to deliver and maintain the
full performance of the products.
Using Products
Precautions for use environment
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Be careful not to drop or bump the products on a hard surface.
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DO NOT install the products in direct sunlight.
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Be careful about the ambient temperature and humidity.
Suitable environment for the use of the printer is as follows:
Range of the temperature
Range of the humidity
Printing
-20°C to 55°C
(-4°F to 131°F)
10%RH to 90%RH
(Non condensing)
Charging
0°C to 40°C
(32°F to 104°F)
10%RH to 90%RH
(Non condensing)
See "20 SPECIFICATIONS" for the guranteed humidity range at each temperature.
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DO NOT install the products near devices that generate strong magnetism such as a copy machine
motor.
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DO NOT install the products in a location that is subject to corrosive gas, siloxane and so on.
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DO NOT connect the AC adapter or AC cable to the same outlet with devices that generate noise.
Precautions on use and operation
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DO NOT print without the thermal paper.
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DO NOT use thermal papers taped together.
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NEVER forcibly pull out the thermal paper by hand with the thermal paper loaded.
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DO NOT open the paper cover during printing.
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DO NOT touch the thermal paper during printing. Covering the paper outlet or pulling out the
thermal paper when ejecting may cause a paper jam or line feed failure.
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DO NOT connect or disconnect the USB cable during printing or communication.
DO NOT touch the USB cable plug during printing.
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When handling the printer, be aware of static electricity. When the static electricity is discharged,
this could cause a USB communication failure.
When this problem occurs, disconnect the USB plug that is connected to the host device and wait a
few seconds before connecting it again.
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DO NOT remove the battery pack or AC adapter during printing or communication.
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If the printer suspends printing because the battery remaining capacity becomes low, connect the
AC adapter and resume printing or communication.
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DO NOT use the thermal head when it is wet. Doing so may damage the printer.
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Printing under low temperature environment or printing at a high print rate might cause unclear
printing or generate loud sound. This is not a failure in the printer but an inherent paper
phenomenon.