User guide

P25 End User Guide

8.3 Storing thermal paper

a. Since color development begins at 70C (158F), thermal paper should be protected from high tempera-

ture, humidity, and light, both before and after printing.

b. Store paper away from high temperatures and humidity. Do not store thermal paper near a heater or in

enclosed places exposed to direct sunlight.

c. Avoid extended exposure to direct light as it may cause discoloration or fading.

d. If thermal paper touches anything which includes phthalic acid ester plasticizer for a long time, it can

reduce the image formation ability of the paper and can cause the printed image to fade. Therefore,

when storing thermal paper in a card case or sample notebook, be sure to use only products made

from polyethylene, polypropylene, or polyester.

e. Thermal paper must not be stored with the printed surfaces touching against each other because the

printed material may be transferred between the surfaces.

Because this tear bar uses steel, the tear bar may be subject to rust. However, this does not affect printer

performance.

8.4 Troubleshooting

1. The printer does not print

a. Make sure that the paper cover is properly closed.

b. Check if the paper is properly inserted.

c. Check the voltage of battery, and confirm whether it stands in proper range or not, if the battery

voltage is low, please recharge it at once.

2. Bluetooth does not work

a. Confirm Bluetooth host device supports SPP master profile, CLDC 1.1, MIDP 2.0

b. Check that the PIN code has been correctly entered.

3. USB or serial port does not work

a. Check the USB or serial port connection.

b. Check the COM port number.

Note: If your problem still can not be resolved please contact your local dealer for assistance.

8.5 Known issues

1. The first line of the characters on the printed receipt is too light. (before version 2007-10-10)