Brother HL-7050N - Manual (Page 243)

A - 44
HL7050_US_UG_FM5.5
Bar code mode
n = 't0' or 'T0 CODE 39 (default)
n = 't1' or 'T1 Interleaved 2 of 5
n = 't3' or 'T3' FIM (US-Post Net)
n = 't4' or 'T4' Post Net (US-Post Net)
n = 't5' or 'T5 EAN 8, EAN 13, or UPC A
n = 't6' or 'T6 UPC E
n = 't9' or 'T9 Codabar
n = 't12' or 'T12 Code 128 set A
n = 't13' or 'T13 Code 128 set B
n = 't14' or 'T14 Code 128 set C
n = 't130' or 'T130 ISBN (EAN)
n = 't131' or 'T131 ISBN (UPC-E)
n = 't132' or 'T132 EAN 128 set A
n = 't133' or 'T133 EAN 128 set B
n = 't134' or 'T134 EAN 128 set C
This parameter selects the bar code mode as shown above. When n
is 't5' or 'T5' the bar code mode (EAN 8, EAN 13, or UPC A) varies
according to the number of characters in the data.