Epson SE450 manual Commands

Commands

GS 0x6B 0x0F 0xC0 0x00 0x00 0x00 0x05 0x3132333435

Prints the following image:

Here, 5 characters are also sent: ABCDE. However, since they are not all numbers, compression is not used. Rectangles are not excluded, so an 8x18 symbol should be auto- selected. The element size has been set to 5.

GS ‘k’ 15 t r c m1 m2 dl…dm

GS 0x6B 0x0F 0x05 0x00 0x00 0x00 0x05 0x4142434445

Prints the following image:

PDF417 2D Barcode

PDF417 is a barcode symbology with the following basic characteristics:

nEncodable Character Set:

•Text compaction mode permits all printable ASCII characters to be encoded, i.e. values 32-126 inclusive in accordance with ISO/IEC 646 (IRV), as well as selected control characters.

•Byte compaction mode permits all 256 possible 8-bit byte values to be encoded. This includes all ASCII characters value 0 to 127 inclusive and provides for international character set support.

•Numeric Compaction mode permits efficient encoding of numeric data strings.

•Various function codewords for control purposes.

nSymbol character structure:

Each PDF417 symbol consist of a stack of vertically aligned rows with a minimum of 3 rows (maximum 90 rows). Each row shall include a minimum of a 1 symbol character (maximum 30 symbol characters), excluding start, stop and row indicator columns. The symbol shall include a quiet zone on all four sides. Each character is 17 modules wide: 4 bar and 4 space elements with the largest element 6 module wide. SE450 specifies each module is 2 dots line wide.

nMaximum possible number of data characters per symbol (at error correction level 0):

925 data codewords which can encode:

• Text Compaction mode: 1850 characters (at 2 data characters per codeword).

• Byte Compaction mode: 1108 characters (at 1.2 data characters per codeword).

• Numeric Compaction mode: 2528 characters (at 2.93 data characters per codeword). At the minimum recommended error correction level, there is a maximum of 863 data codewords which can encode:

• Text Compaction mode: 1726 characters (at 2 data characters per codeword).

• Byte Compaction mode: 1033 characters (at 1.2 data characters per codeword).

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