You might try sending the base 10 equivalent value of that hex code to the printer. Don't know if the printer will recognize that or not but it would be fairly easy to try.
Last year you had a problem sending a code to the printer to open the cash drawer in your POS. I have a similar problem. I must send Ctrl G to a printer. Did you eventually solve this problem ? BTW I have no idea how to send a "base 10" code to anything as Phil suggested.