Brother MELSEC iQ-F TD-4420TN Program Reference Manual page 28

All command data in the ST language is as follows.
Set the commands other than transmission data length in ASCII code.
wSendData[0]:=48;
wSendData[1]:=H4C43;
wSendData[2]:=H0D53;
wSendData[3]:=H540A;
wSendData[4]:=H5845;
wSendData[5]:=H2054;
wSendData[6]:=H3031;
wSendData[7]:=H312C;
wSendData[8]:=H2C30;
wSendData[9]:=H3322;
wSendData[10]:=H2C22;
wSendData[11]:=H2C30;
wSendData[12]:=H2C33;
wSendData[13]:=H2C33;
wSendData[14]:=H6222;
wSendData[15]:=H6F72;
wSendData[16]:=H6874;
wSendData[17]:=H7265;
wSendData[18]:=H0D22;
wSendData[19]:=H500A;
wSendData[20]:=H4952;
wSendData[21]:=H544E;
wSendData[22]:=H3120;
wSendData[23]:=H312C;
wSendData[24]:=H0A0D;
/* transmission data length */
/* CLS line feed (0D 0A) */
/* TEXT 10,10,3,0,3,3, brother line feed */
/* PRINT 1,1 line feed */
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MELSEC iQ-R Brother Label Printer Sample Program Reference Manual