EPSON — ^BX

 Sets the symbol’s column count based on Parameter c and the symbol’s line count based on Parameter r. However, the valid values vary depending on the error correction level set by Parameter e.  If 0 to 140 is specified for Parameter e, only the combination of c and r shown in the following table is valid (the combination of c and r is expressed as “r x c”). ESC/Label Command Reference Guide Rev.

L Page 82 ECC 000 ECC 050 ECC 080 ECC 100 ECC 140 9 × 9 11 × 11 11 × 11 13 × 13 13 × 13 13 × 13 13 × 13 15 × 15 15 × 15 15 × 15 15 × 15 17 × 17 17 × 17 17 × 17 17 × 17 17 × 17 19 × 19 19 × 19 19 × 19 19 × 19 19 × 19 21 × 21 21 × 21 21 × 21 21 × 21 21 × 21 23 × 23 23 × 23 23 × 23 23 × 23 23 × 23 25 × 25 25 × 25 25 × 25 25 × 25 25 × 25 27 × 27 27 × 27 27 × 27 27 × 27 27 × 27 29 × 29 29 × 29 29 × 29 29 × 29 29 × 29 31 × 31 31 × 31 31 × 31 31 × 31 31 × 31 33 × 33 33 × 33 33 × 33 33 × 33 33 × 33 35 × 35 35 × 35 35 × 35 35 × 35 35 × 35 37 × 37 37 × 37 37 × 37 37 × 37 37 × 37 39 × 39 39 × 39 39 × 39 39 × 39 39 × 39 41 × 41 41 × 41 41 × 41 41 × 41 41 × 41 43 × 43 43 × 43 43 × 43 43 × 43 43 × 43 45 × 45 45 × 45 45 × 45 45 × 45 45 × 45 47 × 47 47 × 47 47 × 47 47 × 47 47 × 47 49 × 49 49 × 49 49 × 49 49 × 49 49 × 49