Epson LQ-2070 User Manual page 151

ASCII
Barcode data
Barcode data corresponds to the barcode symbology. The data number of
each barcode type is constant. The barcode is not printed if the following
valid characters are not set.
Barcode Type
EAN-13
EAN-8
Interleaved 2 of 5
UPC-A
UPC-E
Code 39
Code 128
POSTNET
Number of valid characters 1: Control flag c b0=0
Number of valid characters 2: Control flag c b0=1
A-30 Specifications, Command Summary, and Character Tables
Dec. Hex. Description
c: Control flag
Number of valid
characters 1 (HEX)
0D
8
2 to FF
0C
0C or 8
1 to FF
2
to FF
6 or 0A or 0C
Bit 0 = Check digit
0: A check digit is not added
by the printer
1: A check digit is added by
the printer
Bit 1 = Human readable character
(HRC)
0: The HRC is added by the
printer
1: The HRC is not added by
the printer
Bit 2 = Position of flag character
(for EAN-13 and UPC-A only)
0: Center
1: Under
Bits 3-7 = Not used
Number of valid
characters 2 (HEX)
0c
7
2
to FF
0B
0B or 7
1 to FF
2
to FF
5 or 9 or 0B