TX-1xx Series Printer Operation Manual
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7. USB device interface:
Connect the interface to the computer, can run the software that is designed
for this printer and can be used to import the sample name code,
user-defined header/trailer, update the firmware, etc.
8. RS232 interface:
Connect to the RS232 interface to the scale, which is used to
communicating with scale.
9. Battery compartment:
Open the battery compartment, can install four rechargeable batteries.
Please note: Not all models support battery supply, please consult your
supplier.