Cannot print Chinese characters within an email on Epson TM-T88V printer

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Job Description

Attached is a jpg showing to 2 till receipts printed on Epson POS thermal printers. They are both actually the same email and one on the left is printed on an Epson TM-T88IV connected to a Windows 7 PC via a serial cable whilst the one on the right is printed on a Epson TM-T88V connected to Windows Vista PC via USB.

As you can see the receipt on the right does not have the Chinese characters printed correctly whilst the receipt on the left is fine. However the Epson TM-T88V printer will print out Chinese characters from another desktop application so I am at a loss to understand what is the problem?

I have been Googling and discovered that the Epson TM-T88IV printer is the one that supposedly has difficulty printing Chinese characters but that printer is working fine.

Not sure if anyone can help me but I am offering $25 to first person who comes up with a solution.

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Skills: vista

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