User Manual

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

◆ Be careful not to drop or bump the products on a hard surface.

◆ DO NOT install the products in direct sunlight.

◆ Be careful about the ambient temperature and humidity.

Suitable environment for the use of the printer is as follows:

• Range of the temperature : 5°C to 45°C (41°F to 113°F)

• Range of the humidity : 10%RH to 90%RH (Non condensing)

See "18. SPECIFICATIONS" for the guranteed humidity range at each temperature.

◆ DO NOT install the products near devices that generate strong magnetism such as a copy machine

motor.

◆ DO NOT install the products in a location that is subject to corrosive gas, siloxane and so on.

◆ DO NOT connect the AC adapter or AC cable to the same outlet with devices that generate noise.

Precautions on use and operation

◆ DO NOT print without the thermal paper.

◆ DO NOT use thermal papers taped together.

◆ NEVER forcibly pull out the thermal paper by hand with the thermal paper loaded.

◆ DO NOT open the paper cover during printing or cutting.

◆ DO NOT connect or disconnect the interface cable during printing or communication.

DO NOT touch the plug of the interface cable during printing.

◆ 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.

◆ DO NOT use the thermal head when it is wet. Doing so may damage the printer.

◆ Printing under low temperature environment or printing at a high print ratio might cause unclear

printing or generate loud sound. This is not a failure in the printer but an inherent paper

phenomenon.

◆ When printing at a high print ratio for longer length, even non-printing area may be colored due to

accumulation of heat in the thermal head.

Verify the performance with your actual device in advance.

◆ Paper feeding may be confused a few dot-lines when printing is started or when printing and paper

feeding are resumed from a pause state. When printing bit images and so on, always feed the

thermal paper for at least 24 steps at the start of printing, and print without interrupting.