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TM-T20 User’s Manual 15
English
Attaching Cover on the Power Switch
The enclosed power switch cover ensures that the power switch is not pressed
accidentally.
You can turn the power switch on and off by inserting a sharp-pointed object in
the holes in the power switch cover. To detach the cover, also use a sharp-pointed
object.
A waterproof cover for the power switch is also included.
To use these covers, install them as shown in the illustration below.
WARNING:
If an accident occurs with the power switch cover attached, unplug the power
cord immediately. Continued use may cause fire or shock.
Troubleshooting
No lights on the control panel
Check whether the power supply cable is correctly connected to the printer and
the socket.
Error LED on with no printing
❏ Check whether the roll paper cover is closed. If it is open, close it.
❏ If the Paper LED is on, check whether the roll paper is correctly installed and
any roll paper remains.
Error LED flashing with no printing
❏ Check whether a paper jam has occurred. If paper is jammed, remove the
jammed paper referring to the description below and install the roll paper
correctly.
❏ Printing stops if the head overheats and resumes automatically when it cools.
❏ For other cases, turn the printer off, and after 10 seconds, back on.
Power switch
waterproof cover
Power switch
cover