Xiamen Cashino Technology Co., Ltd.
LP-56 Thermal Label Printer
12
Serial（RS232/TTL）XH2.00/4Pin
Terminal No.
Signal Name
Description
1
DTR
Request to send (Data terminal ready)
2
TXD
Transmission data
3
RXD
Receive data
4
GND
Ground
USB PH2.0 mm/4Pin
Terminal No.
Signal Name
Description
1
VUSB
+5V Power supply
2
D-
Data line negative
3
D+
Data line positive
4
GND
Ground
6. Daily maintenance
■
What needs to be maintained?
* The printing is not clear;
* The printing noise becomes larger;
* Label positioning is unstable during printing;
* Occasionally report lack of paper or not report;
* Obvious dust or foreign matter appears on the print head chip, sensor, rubber roller and other
parts.
In order to increase the service life of the print head, it is recommended to regularly maintain the
printer head, sensor, rubber roller and other printing-related parts. The maintenance frequency is
recommended to be at least monthly. If the use environment is harsh, the maintenance frequency should
be increased.
