10
3. Appendix
Troubleshooting
Symptom
Possible Cause
Solution
No Power in
Printer
1. Has the battery fully inserted?
2. Is the Power Switch on?
1. Charge the battery pack.
2. Move the Power Switch on.
Nothing is printed
1. Is the power turned on?
2. Is the paper set correctly?
3. Are the LED signals lighting
red?
4. Is the LED blinking red?
5. Are you using Bluetooth?
6. Are you using IrDA?
1. Turn
on
power.
2. Check the print paper setting.
3. Charge
the
battery.
4. Make sure that the paper is
setting properly, or close the
paper cover completely.
5. Reduce the distance of the
device and the printer.
6. Adjust the angle of IrDA,or clean
up the window, or avoid direct
sunlight.
The print is faint
1. Isn’t the thermal head dirty?
2. Are you using the
recommended paper?
1. Clean it up.
2. Check
the
paper.
The orange or red
LED is lighting
even after
charging battery.
The life cycle of the battery pack
may have expired.
Replace the battery pack with a new
one.
