Problem with printing DataMatrix

Hi everyone.
I have problem with printing DataMatrix code from AS400.
In printerfile i have configured like:
A R RDTMATM
A DTMATM 2100A BARCODE(DATAMATRIX *HRZ +
A X'00' (*WIDTH 0.022) +
A (*DATAMATRIX 120 120))
A POSITION(&PY &PX)
A PY 5S 3P
A PX 5S 3P
In RPG:
C MOVE *BLANK DTMATM
C MOVELSTRBAR DTMATM P
C Z-ADD5.0 PY
C Z-ADD2.0 PX
C WRITERDTMATM
STRBAR have now 256 characters.
And it prints me something strange (you have image example https://zapodaj.net/images/aba00c1a6ef2d.jpg ).
I cannot read this.
I will be very grateful for any help.

_________________________________________
*Maciej Jodłowski *-maciej.jodlowski@xxxxxxxxx
/+48 882 191 649
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