5V
TXD
RXD
GND
Instruction to load paper
audio
USB
serial
USB
LAN
cashbox power supply
output
port
port
port
port
port
port
TF card slot
It is used for external expansion TF memory card.
Micro USB debugging port
TF card slot
debugging button
Description of the paper
58 version supports the thermal paper with the seize of
57±0.5 m m × Ø 60 m m ；
80 version supports the ther mal paper with the size of
79±0.5 m m × Ø 60 m m 。
Regular fault debugging
Description to QR code scanning by cellphone
The version with the function of QR code scanning supports
this function and can recognize the QR code for payment by
cellphone.
Micro USB debugging port, debugging button
They are used to debug the device.
Problems
Solutions
Cashbox port
It is used to connect the cashbox, with an electrical impulse of 120 ms and no continuous po w er
supply being provided. This device only supports external connection with 24V/1A cashbox. If
12V cashbox is used, there may be risks that the circuit of the cashbox will be burnt.
What if the printer
is dead?
What if the printer
does not work?
What if the printed
paper is blank?
What if the printing
is blur?
Press the O N button for 11 seco n d s, then the printer is o
ff
. Click the O N
button to turn the printer on.
Make sure the cover is closed correctly.
Make sure whether the paper is jammed.
Please check whether the paper roll is put upside down;
Please check whether wrong therVmal paper roll is used.
Please check whether the thermal printhead is dirty. If it is, please clean it with swab that
has been dipped in anhydrous alcohol.
Please use quality thermal paper to avoid blur printing due to bad quality of paper.
