#Graphic inspector Offline#
MakoĪfter studying this problem, Global Graphics found that their Mako SDK could be used to help address content inspection requirements where the applications are static data or offline variable data. That is what the VIS is ideally looking to compare and analyze, all at machine rated speeds. For example, the colors that emerge from the combination of tiny dots of color that are actually put down on the page to produce color. Furthermore, it requires the processing of an image of the printed page at a relatively low resolution so that what the camera sees can be compared to what a human would see. How do you process, synchronize, inspect, and compare all of that content on the fly at press speeds? While all VIS (visual inspection solution) companies use cameras to capture the streaming content, they may need to process many different reference file formats to compare those results against. You can expect to see presses using this new technology introduced later this year.įor content inspection, getting the data to the printhead only addresses part of the problem. While that is only one color, and for four colors you would require four CPUs, these are inexpensive desktop class CPUs, not expensive Xeon server class. Global Graphics and partners have been testing Harlequin Direct with desktop class Intel i9 CPUs and have been able to process 1200 x 600 dpi page images to a press running at one thousand feet per minute with a 20-inch-wide print bar at press speed. Putting a supercomputer at the front end of a production system is not practical, which is why Global Graphics developed Harlequin Direct. It is creating a need for server farms to drive these presses which are beginning to look as big as the press, and adding a significant expense to a press equipment cost.
If you add variable data into that mix, it requires even more significant and costly hardware to keep up with the presses. Compound that with the use of extended gamut (ECG) inks and multi-level screening becoming more commonplace, the amount of data being sent to printheads is unprecedented.
#Graphic inspector software#
According to Eric Worrall, Global Graphics Software VP, “Industry data rates are accelerating as press resolutions are moving from 600 dpi to 1200 dpi and speeds are increasing up to one thousand feet (300 meters) per minute quadrupling the amount of data.” Today’s presses can be up to 13 feet (4 meters) wide for packaging and industrial print applications like flooring and décor. Press speeds, resolutions, and the use of variable data are growing. However, as we see an increase in speeds and variable data printing, the need for ultra-high-speed on-the-fly content inspection is increasing. While press manufacturers have integrated various levels of inspection into the printing systems, most of them are targeted at registration, color, and, in some cases, nozzle outs.
As digital printing for commercial and packaging production continues to increase, the need to inspect the print for defects before it comes off the press and into finishing or converting is becoming an essential function.
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