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Time-Out When Charging
The printer believes that too much time was required to bring the battery up
to a normal charge voltage. A maximum of 150 minutes is allowed for the
charging cycle. This is an indication that the battery should be replaced.
Low Thermal Head Temperature
The temperature of the thermal head is too low for reliable printing (less
than -10°C). You need to use the printer in a warmer environment.
If this condition occurs in relatively warm environment (for example, at
room temperature), the printer should be returned for service.
High Thermal Head Temperature
The temperature of the thermal head is too high. If allowed to become even
hotter, the thermal head would begin imaging the paper in areas not
intended to be printed. The printer will stop while the head cools down and
then will resume printing. This condition is normal when printing
documents with a great deal of “black” content.
To avoid or delay the onset of this condition, you can print using a lighter
density setting, reduce the amount of “black space” being printed by
removing background shading and colors (for example, background on
Excel graphs or PowerPoint documents) and make sure that the printer is
not enclosed and has adequate ventilation.
Note: This condition may be worse at high altitude (>10,000 feet) due to a
lower air density available to cool the printer.
Data Receive Error
Data is being received but errors are causing the printer to request that it be
re-transmitted. This will slow printing speed and is almost always
associated with the quality of an IrDA connection. Try repositioning the
printer or host IrDA until the errors cease.
Bad Checksum of Flash Data
This indication is reserved for use during firmware or font uploads
only. The firmware or font that was sent to the printer was either
corrupt or was corrupted during transmission. Disconnect printer
power to shut down the printer, and try sending the file again. If it
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