Epson 2070 User Manual - Page 151

Bit 0 = Check digit, Barcode Type, Number of valid, characters 1 HEX

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ASCII Barcode data Dec. Hex. Description c: Control flag 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 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 (HEX) 0D 8 2 to FF 0C 0C or 8 1 to FF 2 to FF 6 or 0A or 0C Number of valid characters 2 (HEX) 07 c 2 to FF 0B 0B or 7 1 to FF 2 to FF 5 or 9 or 0B 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

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ASCII
Dec.
Hex.
Description
c: Control flag
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
Barcode data
Bits 3-7 = Not used
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
Number of valid
Number of valid
characters 1 (HEX)
characters 2 (HEX)
EAN-13
0D
EAN-8
8
Interleaved 2 of 5
2 to FF
UPC-A
0C
UPC-E
0C or 8
Code 39
1 to FF
Code 128
2
to FF
POSTNET
6 or 0A or 0C
0c
7
2
to FF
0B
0B or 7
1 to FF
2
to FF
5 or 9 or 0B
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