Barcode Problems

A barcode is a unique series of linear lines used to identify an item. Barcodes increase efficiency via automated scanning. When scanned, a barcode can tell a great deal of information about an item. Although beneficial, there are some problems with using barcodes.

Line Distortion and Read Errors

If a barcode is not printed nearly perfectly, it may be difficult for a scanner to read correctly. ASP Microcomputers explains that if ink bleeds or smudges on a barcode, a scanner will not be able to identify it. If the lines of a barcode are not spaced correctly, it will be impossible to read. Ink bleeding can cause lines to appear closer together than they should be, as can using an incorrect font to print a barcode. Dirt or water damage can also cause lines to be distorted.

Large Size

In order for a scanner to read a barcode, the barcode must be big enough for spaces to be clearly seen with an average human eye. For instance, a barcode could easily fit on a bag of Hershey Kisses, but would not fit on an individual Hershey Kiss because it would be too small. This puts some limits on what items can have a barcode attached for scanning, and what items need to be identified manually.

Easily Damaged

Barcodes are typically placed on paper or thin plastic. These materials are easily damaged, and once damage occurs a barcode may not be identified when scanned. Laminating may seem like a good solution to this problem, but even small pockets of air under the laminate can affect the scanning of the barcode.

References

• ASP Microcomputers: Help! My Barcodes are Hard to Read
• ID TechEx: Problems Associated with Barcodes
• ID Automation: IDAutomation Barcode FAQ & Tutorial