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3.4 Indicators, Buzzers, and Key Operation
There is three button and one inner buzzers and two indicators on TL54 printer.
Paper feed button: Normal mode: The print command can be used to enable or disable the key
switch function. When the button control state is enabled, press paper feed button ,the printer
feeds the paper, and release the paper feed button , stop the paper feed; the label mode: press
the paper feed button one time, the printer automatically stops when feed one label (see Figure
1-1).
Power switch: Used to turn the printer's power on or off. Press the power switch on the back of
the printer, press "-" to turn on the power, and press "o" to turn off the power (see Figure 1-1).
Pause button: Pauses the printer function (valid in label print mode) (see Figure 1-1).
Green POWER indicator: It is the power status indicator. When the POWER indicator is on, it
indicates that the printer is turned on. If the printer presses the pause button and the printer is
paused, the POWER indicator will flash continuously (see Figure 1-1).
Red ERROR indicator: On or flashing indicates that the printer paper status is abnormal; when
the paper is out, the indicator light is on.
The error indicator flashes and the buzzer sounds: the printer has an error.
According to the different flicker type, the different error types are as below:
◆
Non-recoverable error, the times of indicator flickering and buzzer sounding mean the error
type, then persistent lighting.
◆
recoverable error the indicator light flashes continuously, and the buzzer sounds.
◆
Paper out, PAPER OUT indicator lights and the buzzer sounds persistently. When the paper
case cover is open, whether the paper is out or not will not be tested.
1. Non-recoverable error, the indicator flickers several times, then persistent lighting. The times
of flickering means the error type
ERROR Type
ERROR Description
ERROR Indicator Flickering
Type
Non-recoverabl
e error
LED flickers once:Internal memory
reading and writing error
LED flickers twice:over-voltage
LED flickers three times:under-voltage
LED flickers four times: CPU execution
error (wrong address)