We print the pdf on printer TSC TTP-244 Pro with size 50x15mm on ERPNext13
if we print on printer TSC TTP-244 Pro with paper size 100x15mm the scanner reader cannot recognize the barcode.
But if print on regular paper size like A4 with different printer NOT the TSC TTP=244 Pro barcode no issue.
Attach is the sample printout from TSC TTP-244 Pro with size 50x15mm on ERPNext13