* Cable is not well connected to
serial or USB interface or parallel
port.
* The serial port cable pin
configuration is not pin to pin
connected.
* Re-connect cable to interface.
* If using serial cable,
- Please replace the cable with pin
to pin connected.
- Check the baud rate setting. The
default baud rate setting of
printer is 9600,n,8,1.
* If using the Ethernet cable,
- Check if the Ethernet RJ-45
connector green LED is lit on.
- Check if the Ethernet RJ-45
connector amber LED is
blinking.
- Check if the printer gets the IP
address when using DHCP
mode.
- Check if the IP address is correct
when using the static IP address.
- Wait a few seconds let the printer
get the communication with the
server then check the IP address
setting again.
* Chang a new cable.
* Ribbon and media are not
compatible.
* Verify the ribbon-inked side.
* Reload the ribbon again.
* Clean the printhead.
* The print density setting is
incorrect.
* Printhead’s harness connector is
not well connected with printheat.
Turn off the printer and plug the
connector again.
* Check your program if there is a
command PRINT at the end of the
file and there must have CRLF at
the end of each command line.
* Delete unused files in the
FLASH/DRAM.
* The max. numbers of DRAM is
256 files.
* The max. user addressable
memory space of DRAM is
256KB.
* The max. numbers of file of
FLASH is 256 files.
* The max. user addressable
memory space of FLASH is
2560KB.
* Use the supported capacity SD
card.
* Insert the SD card again.
* The supported SD card spec and
the approved SD card
manufacturers, please refer to
section 2.2.3.
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