Bar codes are a series of horizontal or vertical parallel lines representing a code that can be optically read and interpreted by a bar code scanner. Bar coding is used on packaging to speed up pricing at checkout.
• Bar codes must be positioned in a spot that is highly visible and easily scanned.
• A bar code must be printed at a scale between 85% and 120% of its original size.
• Bar codes must be printed in dark colors (dark shades or blue-black and brown or black) against a solid light colored background. (See the following section, Guide to Color-Correct Bar Coding, for more specific information on which colors are readable when printed on common paperboard surfaces.)