If the blank area in printing is crowded by other graphics and the width is insufficient, the quality of bar code may be affected and the phenomenon of refusing to read (unable to scan) may occur. In order to ensure the width of the blank area on the right, a ">" is printed in the lower right corner. Symbol. Because there is already a number on the left, there is no need to print a protective word in the lower left corner.
As long as the bar code production meets the standard, it doesn't matter if the characters are not protected.