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FLEXO Magazine : April 2012
such as smartphones. QR codes can now provide the consumer with fast access to CPC websites, entertainment and transportation ticketing (you can use your mobile device as a board- ing pass), product loyalty opportunity (mobile coupons that can be scanned at register from the mobile device), etc. Denso Wave owns the patents on the QR code, but has not exercised them, thus they have become open to the public. Anyone can download a QR code from a variety of websites and put in specific website or text information that the consumer can access. The con- sumer can download one of many apps (typically for free) onto his/her mobile device to scan or read the QR code to instantly take him/her to the destination chosen by the CPC. The other benefit of QR codes being open to the public is that they are now an ISO standard that has been adopted globally. QR codes can hold much more information than a bar code. Bar codes typically can hold 20 digits worth, while QR codes can hold more than 7,000 character bits of information. In addi- tion, QR codes have up to 30 percent error correction. This is very convenient for CPCs if the QR code is damaged; for example if a label is wrinkled or torn. Let’s take a look at the anatomy of a QR code: You will see a few things that pop out at you immediately. The finder patters allow for 360-degree placement. That means that there is no specific way a QR code needs to be positioned on a package. This is unlike a barcode, which traditionally requires either lad- der or picket fence alignment. QR codes can be reproduced in print and digital media as well. From bill- boards to movie screens to packaging to magazines there are many vehicles for the QR code to work to engage the consumer. From a print reproduction standpoint, however, there are certain parameters that must be met to ensure a good QR code scan. First, the QR code needs good contrast to the background or substrate on which it is being printed. The QR code does not need to be black and white necessarily, but a good contrast of www.flexography.org april 2012 FLEXO 33 TAKE CONTROL Control your roll quality, speed, workflow and bottom line. Rotoflex Genesis - the newest, most advanced control system in the industry - gives you more control. Exclusive to Rotoflex inspection/rewind machines, Genesis guarantees fast, accurate fault recognition and placement, includes 100% matrix and missing label detection, and simplifies set-up and calibration. Best of all it lets you take control of your profits. www.rotoflex.com