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We offer variable-data-printing applications that can produce QR codes that represent information in a data file. Click here to learn about them.
 
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MYTHS and facts about
variable-data printing
& publishing
 

In addition to the
QR format, there
are other 2-D symbology
formats. Four of them are
PDF417, DataGlyph, DataMatrix, and MaxiCode.

The area of information
technology that deals with
such symbols is known
as "2-D symbology."
 



































































































































































































































































  







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QUESTION: What is a QR symbol (QR code)?

ANSWER: The QR symbol (QR code) is a 2D (two-dimensional) symbology that is being used increasingly for applications related to advertising, marketing, and product promotion. QR codes are also used for commercial tracking applications.

In Japan, QR Codes are seen everywhere; now they are being adopted in the Western hemisphere.

QR stands for "Quick Response." The QR code's format is designed to enable rapid reading; its "finder pattern" of nested alternating dark and light squares at three corners of the symbol makes this possible.

QR Code
A QR code

As mentioned, the QR code is two-dimensional symbology (sometimes referred to as a "2D bar code" or "two-dimensional bar code"). Contrast this with other kinds of bar codes that we see in our daily lives — most of them are "one-dimensional" bar codes. That is: the marks that make up the bar code are arranged in one row (one dimension), usually the horizontal dimension.

A UPC bar code

UPC bar codes are one-dimensional bar codes.
They are found on product packaging in supermarkets
and other retail environments.
A Code 128 bar code.

Code 128 bar codes are one-dimensional bar codes.
They are widely used in many industries, particularly those
related to shipping and packaging.


What kind of information can be represented by a QR code?

A QR Code can represent 7366 numeric characters, 4464 alphanumeric characters, 2953 binary values, or 1817 Kanji/Kana characters. You can use a QR code to represent pretty much anything you want — a name and address, an account number, a product name, a Web-site address, whatever.


How do you get the information out of a QR code?

2D bar code   QR Code   To understand the information a QR code represents, you need a scanning wand or camera phone that is programmed to understand and interpret QR codes. As explained above, QR codes are increasingly being used in applications that rely on smart phones or camera phones.


Error correction

The QR code uses Reed-Solomon error-correction methodology.


What are QR codes used for?

As explained above, QR codes are being used increasingly for applications related to advertising, marketing, and product promotion; they are also used for commercial tracking applications.

QR codes are particularly popular in applications for smart phones and camera phones. QR codes storing addresses and URLs may appear in magazines, on signs, on buses, on business cards, in storefront windows. Someone with a phone equipped with an appropriate reader application can scan the image of a QR code to display text or contact information, connect to a wireless network, or open a web page in the phone's browser.


How can you put QR codes on your documents?

The process of putting QR codes on your documents isn't as straightforward as putting one-dimensional bar codes on your documents.

Let's compare the two processes.

In most situations, to put a one-dimensional bar code on a document, you just need to type the information to be represented (or somehow generate that information automatically), and you need to format that information with the proper bar-code font.

The procedure for putting a QR code on a document is different and more complicated than what we've just described, for two reasons:
  • Since a QR code is two-dimensional, you can't represent the information in it with just one line of characters in your document.

  • The relationship between the marks that make up the QR code and the information that those marks represent is more complex than the relationship between the marks that make up a one-dimensional bar code and the information that the bar code represents.
If you want to put the same QR code on every document in a print run, you can take advantage of several free on-line services that allow you to type in the information to be represented by the QR code; the QR code is then generated automatically, and you can download it and use it in your documents. Click the link below to find out about several of these free on-line services.
http://freenuts.com/top-10-free-online-qr-code-generators/
In some instances, you migh want to print a different QR code on each document in your print run. For example, you could print QR codes that represent information in a data file. We offer several variable-data-printing applications that can handle this. Click the link below to learn about them.
www.CitationSoftware.com/SolutionFinder_VarDataPandP.htm.
 




    
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