Zen Of Internet Marketing

Bar code scanners are used to read the bar codes found on products in a wide variety of situations. Most of us are familiar with bar codes found on packages at the grocery store. When you purchase an item, the bar code on the package is scanned by a bar code scanner. This automatically calls up the item particulars such as the item name and unit cost. The cost is then calculated automatically and added to your bill

When you buy a product such as a can of soup or a box of cereal, it alerts the stock control system to the fact that the item was purchased. This allows the control system to maintain a current record of how many of each item is still available for purchase. As long as the entire inventory was entered correctly in the first place, this allows your inventory control to be automatic and constantly up to date.

In a small business setting implementing such a system starts with stock control software where information about inventory items is stored. Bar code scanners are used to input data into the stock control system. Each time an item passes in or out of inventory it is scanned and the appropriate change of status is recorded in the inventory database.

Such a system can even create unique bar codes for items that do not already have them. For new items a unique bar code is generated by the software, and then a bar code printer is used to print a bar code label that is then affixed to the item.

These are the top three kinds of bar code scanners that are used today:

1. The Wand Scanner - This is the simplest type of bar code scanner. A wand scanner is shaped like a pen and has to be touching the bar code to scan it. The light from the wand scanner is reflected off the bar code and then the system decodes this signal to recognize the product.

It is necessary to keep a wand scanner in touch with the UPC code while scanning it. The wand scanner, which is a pen-like scanner, is the simplest type of UPC scanner. It gives off a light that reflects off the UPC code, which in turn is decoded by the POS system to recognize the product.

However, wand scanners are limited in their operation. To succeed in obtaining a proper reading, the wand has to be positioned correctly with respect to the bar coding label. It is necessary as well to slide the wand along the label neither overly rapidly nor overly slowly. Wand scanners are limited by their resolution requirements too. If a bar code’s resolution is too fine, then the wand won’t be successful in scanning it properly. For instance, a 5 mil bar code cannot be read by a 10 mil device. You must remember that when you go out to buy a wand scanner.

2. CCD Scanners - CCD stands for charged coupled device. This type of scanner normally costs less than a laser scanner, and it is a very accurate alternative system for scanning bar codes. Both the wand scanner and the CCD reader have to be in physical contact with the bar code if they are to read the label. However, the CCD reader doesn’t have to be moved, waved, or slid across the label like the wand scanner. The user can just touch the reader to the bar code and pull the trigger to activate the scanner.

Of all the different types of bar code scanners, CCD readers are considered the most straight-forward to use. They are manufactured in widths that start at about 2 and go up to 4 inches. A CCD reader is expensive compared to a wand (about four times the cost), but is a bargain compared to the laser scanner (about one third the cost).

A new barcode technology similar to CCD is called FFO (Fixed Focus Optics). And FFO scnner is a non-contact reader which can read barcodes from as much as 20″ away. They are also able to read two-dimensional barcodes which are going to become more widely used in the future.

3. The Laser Scanner - More sophisticated high volume applications use laser scanners to read and record bar codes. The bar code label is scanned quickly by a laser scanner using a beam of light. This means that there is no need for the bar code label to touch the scanner, and the scanner isn’t portable. Since scanning occurs when the object is simply held in front of the scanner, item scanning is essentially automatic.

Such a system has benefits in a variety of situations. For instance, because the scans are accomplished with great speed, it is possible to embed laser scanners inside of conveyor systems. When items pass by rapidly, scanning takes place automatically. In a retail environment, the clerk merely moves each item over the glass to engage the scan. Such a system can easily keep pace with a clerk who simply moves objects from one side of the scanner to the other other. Laser systems are much more rapid and accurate than any other widely-used alternative.

Regardless of which scanning system is best for your business right now, be sure to purchase stock control software that lets you implement other scanning technologies as the need arises.

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