TH250
Programmer’s Guide
5
Indicators
The printer communicates various conditions both visually, with the green LED or audibly, with a
series of tones or beeps.
The following table lists these indicators.
Indicator Sequence
Condition
LED
Continuous, blinking on
Paper out
Cover open
Black dot sensor error
Knife unable to home
LED
Continuous, blinking off
Paper is low
Printhead too hot
Voltages low/high
LED
Continuous, double LED flash
Write to permanent memory in progress
LED
Blinks once every five seconds
Printer in sleep mode
LED
Continuous, quick blinking (on
power up)
Invalid firmware
LED
Continuous, slow blinking
Power supply and max power setting
don’t match
Tone
Two-tone beep (low frequency,
high frequency)
Start-up diagnostics completed
successfully
LED and
Tone
Two-tone beep (low frequency,
high frequency)
Continuous, quick blinking of LED
When entering flash download mode*
*
Note:
The printer enters flash download mode when a download command
is sent to the printer.
The printer is also able to communicate its status to the host application if the application has been
programmed to receive this information.
Error conditions and correcting them
Refer to section “Troubleshooting the printer” in chapter “Using the printer” in the User Manual.
Communication of printer status to the host application
Refer to section “Command descriptions” in chapter “Programming commands, Status” sections.
Содержание TH250
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