BTP-M170 User’s Manual
e- ERROR LED
Indicate all error status. Under normal conditions, ERROR LED is always off; under error
conditions, ERROR LED will flash.

f- POWER LED

Indicate power status (on/off). When turning on printer, POWER LED is always on; when
turning off printer, POWER LED is always off.
g- Paper near end sensor
Detect the status of paper roll. If paper near end, the ERROR LED will flash and indicate
user to replace paper. The printer will continue printing until the paper is end. The printer
will indicate paper near end when remaining paper is less than 3m or paper roll O/D is
less than 25mm.
Caution:
The paper guide is a necessary part of the printer for adjusting paper width, please keep it
carefully.

3.2 LEDs and Buzzer

1) The table below shows the functions of LEDs and buzzer:
Name Status Printer status
On Power on
POWER LED(Green) Off Power off
Flash Error
ERROR LED(Red) Off Normal
On Paper end or paper near end
Flash Standby
PAPER LED(Red)
Off Normal paper status
Buzzer* Beep Error
2) The table below shows LEDs and buzzer in error status:
Error Buzzer* ERROR LED PAPER LED
HP error Interval buzzing Interval flash Off
Print head overheated Six sounds Six times Off
Abnormal voltage Five sounds Five times Off
Paper end Two sounds Two times On
Paper near end* One time On
*Buzzer and paper near end sensor are optional.
Caution:
The printer checks the print head temperature via thermal resistor. If the print head is
extremely overheated, the printer will stop printing at 140.
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