The Barcode Scanner Guide

Almost any one of the many different technologies used in barcode scanning can be housed in such a way that makes it more convenient for the user. As far as I’m concerned, there are four main different housing types of barcode scanners: handheld, pent-type, stationary, and fixed position.

Handheld

These are what I usually think of when I think “barcode scanner”. You know, they’re your average point-and-shoot, “gun” style scanner. They are usually laser type scanners, however LED or CCD type scanners are becoming more popular in this handheld style. Also, there is usually a trigger with the laser version, which functions to turn the light source on and off. These are often used when checking inventory, or when a customer has an item too large to be passed over the stationary scanner.

Pen Type

Okay, there is really no mystery as to what the pen type scanner looks like, the name pretty much gives it away. These scanners are more low, than high, technology and require that the tip of the scanner be drawn or swiped directly across the bars of the barcode label, from one end to the other. They are less reliable and sometimes take more than one try to get an accurate reading.

Stationary Scanners

Again, the names for all of these variations are self-explanatory. Stationary scanners are scanners that are secured in place, and by which a label is passed. The scanners at the checkout stands of supermarkets are the perfect example of a stationary scanner. The main point is, the scanner itself does not move, but the product or item with the barcode label, does.

Fixed Position Scanner

You’re probably wondering what the difference is between a stationary scanner and a fixed position scanner, because they sound almost the same. However, the difference is that a stationary scanner never moves. A fixed position scanner can be placed on a conveyor track or in factory automation, or in other words, it is attached to a bigger robotic frame or arm that moves in a very organized pattern.

The materials used in the different housing types of barcode readers vary according to the scanner’s purpose and environment. Some are made out of hard plastic, some with rubber, and obviously as in the case of most supermarket omni-directional laser scanners, under a plate of glass. There are also some cases, more often with the handheld versions, that are specifically designed to be less vulnerable to breaking when dropped or being surrounded by humidity or moisture.