number of format barcode number

hey there i'm facing this problem as you see here formats of barcod number not shown well i mean the numbers
any solve for this problem??!!
or if there any way to remove number only from barcode number?!

i already do customization to (Peripherals.dll) from SDK CU9 Peripherals>Printer
to fix merging issue
and  as you see here i change barcode to barcode128
because my barcode reader can't recognize  barcode39