Focus: doubts arising from printed barcodes

Recently, some friends encountered problems related to bar code printing. The other party engaged in bar code printing for more than 20 years. It has been safe. There have been few opportunities for serious problems in the past. Most of them have also been resolved. It is quite high. If it is not a major customer requesting to purchase a bar code detector, it will not really consider spending more than 20,000 Yuan HKD to buy it. The client also said that if he does not purchase, he will purchase it on his behalf and deduct it from the purchase price. The friend felt that since the bar code had proved to be readable, he still had to give a report to prove what A, B and C levels were achieved.

After listening to a friend complaining of bitter water, he had to answer this question: Barcode printing quality has not been taken seriously. U.S.-branded bar code detectors did not comply with ISO/IEC 15426-1 international bar code detector standards and ISO/IEC 15416-1 print quality. Standards, so the past printers said that the qualified, the customer said that the situation does not happen from time to time, when the problem occurs, everyone seems to find no solution, had to pay or deduct some of the purchase price. Of course, printers are very reluctant or look forward to dealing with these orders in future orders.

After all, the barcode is just like everybody thinks. Just scan the scanner and read it to prove that the world is universally accessible.

The answer is of course negative. First of all, bar code scanners are not only one type. The bar code size, scanning distance, environmental factors in use, and the wavelength of the aperture are all different. In addition to the bar code system, the coding rules are not much known to everyone. Simply put, the same string of numbers, many Bar code system can also be done, just use the scanner, will not be discovered at all, only to find the goods after delivery, hate it hard to return. Many well-known foreign customers have encountered similar problems in the past, so they decided to make a decision and to use this method – to provide bar code inspection reports as proof of each delivery. Avoid unnecessary disputes, or have friends ask: Tested with other brands of detectors, but customers do not recognize the test results. Yes, this happened. It is understood that there are two reasons.

First, there are new and old instruments but no regular calibration, so there are different test results.

Two or two of the two sets of equipment do not meet the international standards (ISO/IEC 15426-1 and ISO/IEC 15416-1), and the difference is understandable.

In fact, if the instruments used by both parties conform to the ISO/IEC-15426-1 standard, the results should be the same even for different brands. Unfortunately, the U.S. and German brands, and the poor results of the test results in the majority of people misunderstood or lost their confidence, should justify and set the chaos, anyway, because most printers lack of understanding of the bar code standard, if not with the printing technology training, the single purchase Meet the standard equipment will only be incompetent, add trouble. There are some real professional consulting companies in the market, not only providing reliable bar code detectors, but also a full set of technical training courses. Problems can be resolved easily. Finding wrong suppliers is not only a waste of money, but also has no use. Think again.

How to judge supplier and equipment qualification

To test bar codes up to A, B, and C levels, seven items need to be verified, including symbol contrast, modulation ratio, and slew rate. May wish to ask the supplier, if the other side to prove everything, can answer all the questions, I believe that few people, equipment should be provided with a signed confirmation to achieve the target certificate, if only a copy of the ordinary computer print, believe any People can copy exactly the same, not trust. The most important thing is that the inspection report with ISO/IEC 15416-1 can be printed out as genuine goods. This is simple, and it is not proof that the general supplier can come up with. In the era of advanced information, the ability to distinguish right from wrong is also increasing.