Since printing accuracy is a necessary condition for the printing process, the company strives to improve the testing equipment. Ernest Schneider, the business development manager of Erhardt & Leimer USA, pointed out that the testing equipment should be improved from three places. "In the range of size observation products, the new digital photography replaces the old analog photography technology. The higher picture accuracy ensures better image quality and color fidelity. The new three-core color single line on the 100% inspection system Scanning cameras will better detect color deviations and minor printing errors. As early as possible, testing equipment should be added during the production process to reduce the possibility of producing or shipping defective products, while maximizing potential profits.
Thome agrees that digital technology can provide better detection capabilities than analog technology. He also mentioned that BST Pro Mark has started to connect the vision system with the 100% inspection system. "In addition to this, we made a complete workflow system. On the printing press, we placed a system to identify defects. During the unwinding of the rewinder, we placed a reading device to read the edge of the web. Mark. "He explained.
Shumaker describes a similar system on the workflow link, a new product "If you have an inspection system on the printing press, this will allow you to identify the defect information on the printing press and transfer this to the rewinder, rewinder Will automatically stop on the flaws, so these flaws are cut off. This is a relatively new technology and is becoming more and more popular. The idea is that you will get all the information, the information will be stored, you can see the information truly, and Make a decision in advance. Only if everyone thinks the defect is harmful, it will stop on the rewinder and be cleared.
Another development that has attracted the attention of printers is PDF inspection. Shumaker explained that “you can take a PDF file of a customer ’s printed matter and compare this PDF with the product being tested on the roller.†This is helpful, not just for images, but also for text. Shumaker cited the example of PDF detection in different languages ​​and small fonts.
Spendlow said, "In recent years, PC-based electronic printing interface detection has developed greatly. This system can be seen on almost all levels of label types, from medical labels to monochrome barcode labels. And eradicated A large number of defects and optional equipment such as flag detection, strip detection, missing label detection, strobe light and barcode scanner.
Paul Young, sales manager of desktop rewinding and inspection equipment manufacturer Lederle Machine Co, said, "Lederle provides a PLC (program logic controller) and VFD-oriented rewinding station. In addition, Lederle also uses an operator interface control panel, which is readable Take any text and language you want to read. Most machines we sell to Latin America and Mexico can read Spanish. Today ’s electronic technology provides more possibilities for adding barcode reading software, camera systems and missing label detection . "
According to Doerr, “In order to be able to detect wider widths and / or on faster product lines (printer speeds), true 100% detection technology has developed new. Until recently, 100% detection systems were The maximum width and higher speeds still have some restrictions, "he continued." Because under most technical conditions, the camera based on the frame detection system is becoming increasingly feature-rich and at the same time the price has not increased. "He will be home and office The cost of the computer has not increased and the number of features has increased to compare.
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