How good are your programming skills ? I found this MS article which may be relevant -
The source of the link was here -
I cannot find anything like an instruction manual for this printer. You may have to get the Chinese tool. It should not be too difficult to use if it is designed for your printer, if you are really lucky there will be an obvious place to insert your code, then press 'Enter'. Being lucky may be too much to hope for, but there is always Google Translate.
I also noticed that there are other makers of these printers, Epson and Brother to name just two. These companies tend to be a bit more forthcoming with technical information, might be worth your while seeing if you can download one of their manuals since Hex programming seems to be quite common with these devices. Another line of attack might be to see if you know anybody else who uses these devices - ask them how they set them up.