Disadvantages of bar code reader

Answer 1

Prone to damage Can be slow Generally ROM device

Answer 2

It doesn't always read the characters correctly. Sometimes it is because of the quality of print but there are also a lot of characters that get confused. Classic examples include the letter l and the number 1, the letter O and the number 0 and others. OCR will read content but not always layout. So your text may be read perfectly, but it is does not appear as it does on the original page. This is particularly common when the layout of the original page is more complex, like having columns of text or having images and diagrams in the text with textual headings under them. OCR is good for quickly getting a large amount of printed text into a computer, but there is often a lot of work to do after that. A fast typist with good knowledge of a word processor or desktop publisher could get some text typed and laid out just as quickly as another person who scans it and tries to lay it out themselves and remove all the errors.

Answer 3

We hear the statement "disadvantages of barcode scanners" from time to time and as we probe the customers that believe this we find a common theme. Most customers that believe there are disadvantages of bar code scanners are customers that are not using them and keep a well managed manual system in place because it works for them.


Many manufacturers and distributors still manage inventory on log sheets and with index card systems. This was a tried and true method for years, but in todays world of speed and error free work, you should not rely on your employees always getting the number right. The advantage of the barcode scanner is that it reads what is there. There is no way the scanner can transpose numbers or recognize the number 0 as a letter o or a number 1 with a letter l. There are many human error elements that lead to duplicate work because of errors and the barcode scanner prevents the errors of transposing and mis-reading number and letter characters.



Now the disadvantages of barcode scanners are usually perceived as cost, change, and durability of the rough environment that customers may think, there is no way we can automate. Well, lets look at each disadvantage at a time.
The disadvantage of a barcode scanner because of cost is a real easy one to tackle. The costs have really come down on both inventory management software packages and barcode scanning hardware. The payback in time saved due to error free work and the speed in which cycle counts and inventories can be done can provide a return on the investment within 3-4 months. Not bad!

Answer 4

The disadvantage of optical mark reader (OMR) is: In case of collecting large amount of text OMR complicates the data collection.

Answer 5

Many standards available so there is no one true 'standard'. barcodes needs labels and they need to be protected to be visisble for scanning, to preserve readability unlike RFID data sources.

Answer 6

A barcode reader is a handheld electronic device that reads printed barcodes. Some of its disadvantages are: scratched or crumpled barcodes cannot be read and system failures cause delays.

Answer 7

if a barcode becomes scratched or crumpled the reader may not be able to read it.

Answer 8

not accurate