Epson SE450 manual Supported Square Data Matrix Symbol Sizes

Commands

For Data Matrix encoding, the LabelWriter SE450 printer supports only basic ASCII characters 0x00-0x7F.

Data Matrix barcodes are only supported for 203 x 203 dpi modes. They are not supported for 203 x 136 dpi modes.

Parameters

n15 (0x0F) option byte

Bit 7: “Numbers-only” compression.

Uses the ASCII number pairs compression in the Data Matrix specification. When this is enabled, only ASCII numbers may be sent to the printer. Any other data will be turned into the digit 0.

0:Compression disabled

1:Compression enabled

Bit 6: Exclude rectangles.

Excludes rectangular symbols for when the symbol size is being

tauto-selected. Only effective when r and c are both 0.

0:When symbol size is being auto-selected (r=c=0), a rectangular or square symbol may be chosen.

1:When symbol size is being auto-selected (r=c=0), only square symbols will be chosen.

Bit 5-0: Element size

The remaining 6 bits form a binary value for the size of the individual square elements in each Data Matrix symbol. This value is in units of the printers 203 dpi pixels. So, a value of 5 will result in each square element in the symbol being 5/203” wide and tall. If this value is set to 0, the printer will use its default value of 4.

the number of rows in the symbol.

If both r and c are 0, the printer will use the smallest supported Data Matrix symbol to

r

store the data. Otherwise, this should be the desired number of rows, chosen from a supported symbol in the tables below.

the number of columns in the symbol.

If both r and c are 0, the printer will use the smallest supported Data Matrix symbol to

c

store the data. Otherwise, this should be the desired number of columns, chosen from a supported symbol in the tables below.

m1 the most significant byte of data length.

m2 the least significant byte of data length.

Supported Square Data Matrix Symbol Sizes

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