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KBA introduces new press sheet scanning system

Jun 1, 2010 12:00 AM

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KBA North America  (Dallas, TX) introduces its new DensiTronic PDF reader for KBA sheetfed offset presses. This new scanning system can be easily added onto the press as a part of the KBA DensiTronic Professional closed-loop scanning spectrodensitometer system that provides density and color measuring for quality control both during and after printing.

“KBA customers who use this system can provide assurance to their customers that they are capturing every pixel from the approved PDF onto the printed sheet thus assuring a perfect match,” says Chris Travis, KBA director of technology. “The printed sheet is compared to the original PDF resulting in less waste and achieving the required quality faster.”

The DensiTronic PDF reader provides detailed quality reports from the printer, and reduces waste as errors are detected at the beginning of the press run. “The DensiTronic PDF reader provides reliable detection of small, difficult-to-spot errors,” says Travis. “It is the only integrated system with 300 dpi resolution and detection and the only system designed for sheets up to 47 x 64 inches.”

One of the first KBA customers to install the DensiTronic PDF reader is a large German packaging printer specializing in the pharmaceutical and cosmetic markets. Since DensiTronic PDF went live, this company reports it has been able to reduce costs for returns and complaints by 50%. The greatest potential for savings lies in avoiding errors during printing.

With an inspection resolution of 36 measuring points per square millimeter, the document comparison reveals tiny deviations in the printed image. The press operator uses the KBA DensiTronic PDF reader to scan the first good sheet of the run. The automatic evaluation pinpoints even the slightest deviations from the original PDF within just a few moments. Alongside any spots of dirt which may have contaminated plate exposure, the system also detects additional diecutting and register marks on the sheet, the numbering of individual blanks, dot gain in packaging barcodes (when printing on inexpensive card grades) and the like. The facility for automatic exclusion of individual detected differences enables the operator to gain a fast and compact overview of all production-relevant deviations, then decide whether the job can be printed as it is or consultation with the quality assurance department is necessary.