Hello;
I don't know if it will work or not because I didn't tried it before but I've googled for printer codes and found something to try.
To enable red color use:
<XCT 27,114,1>
To enable black color use:
<XCT 27,114,0>
Add this code to the header of the ticket on a single line to see if it works or not. You can try different numbers instead of 1 or 0 if it does not work. I hope it helps.