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LED flashes twice: Over-voltage
LED flashes three times: the
voltage is lack
LED flashes four times : CPU
Execution error (wrong address )
LED flashes five times : UIB error
LED flashes eight times :
temperature detection of circuit is
wrong
b. Automatically recoverable error: the indicator flashes continuously.
Error type
Description
Type of flash
Automatically
recoverable
error
LED continues flashing
：
the
temperature of printing head is
over high and the cover is wrong
2.6 Turn on the printer
When the printer is off and paper case cover is closed, press the POWER button
to turn on the printer and the ERROR indicator flashes twice, then indicator off. The
printer enters into the normal working mode.
2.7 Self test
The self-test will check the condition of printer, if the printer prints out the
self-test receipt correctly, it means the printer works normally except interface with
host. Otherwise it needs to repair.
Self-test method: In the off state, [paper cover] closes and ensures that the
printer has paper, press and hold the [FEED] button and turn on the power.
At this time, the red indicator will flash at the frequency of 1s flashing, and the
[FEED] button will be released within 3 times of the indicator flashing.
The printer will prints a self-check receipt. Self-test can detect whether the
printer is working properly, if it can print out the self-test spline correctly, then means
except for the interface with the host, the printer is all normal, otherwise it needs to
be overhaul.
