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How to fix printed messy code from thermal Receipt Printer?

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How to fix printed messy code from thermal Receipt Printer?


Q: when I have print the test from app and pc, the printer always printed below messy code, how to do?  Solution: when you meet this issue, there are two situations leadto Printed messy code, 1, when The Printer communication is com ports, the serial Port setting wrong,  it must be keep the two side com ports same setting. 
Printer Series port setting                      computer series port setting
Baud rate: 9600 /Data bits: 8 /Parity: None/Stop bits: 1/Flow Control: None
Notice:  If there Baud rate is different between computer and printer, it will be print the messy code.

2, when you need print non- English receipt, if the code-page setting not right, it will be print the messy code.                                           Code page number in the printer  2.1 you can use the “Printer” tools in you cd with printer box to setting the right code page.