Advancing the digital technologies in Graphic Arts, standardization for total printing process is required to reduce the loss occurred in printing process. Moreover, the standardization is considered to be a significant issue to accomplish building CMS environment. To achieve the standardization, especially in printing stage, the printing color control system comes up first as an essential tool. In this literature, mainly what you can do with KOMORI's printing color control system "PDC-S and net Version" as supporting tool for standardization is addressed.

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The Web Inspection System was invented in the 1960's, about forty years are passed since them. During that long time, they were evolved by some new technologies, example, CCD camera, computer, image processor, color sensor, and digital operation. Now I will explain the latest of Web Inspection System.

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Surface inspection of printed paper has been implemented in the printing industry since 18 years ago. There are many kinds of printed materials which require improvement of printing quality recently. Of course the level of required quality varies depending on applications, values etc. The original performance was to inspect defective printing within a limited area but recently more sophisticated performance has been expected due to development of equipment performance and technology of digital image processing. In fact, there is an increasing demand for surface inspection of printed paper in the industry where the performance of inspection equipment with critical sensor has been further expected to inspect printed materials at various levels of printing control and management. Currently, the main function of printing inspection equipment is still to check quality control. However, there is a sign that the equipment is going to be changed from simple non-production equipment to the more sophisticated and value-added equipment which enables manpower saving by automatic operation. Specially in terms of quality control which many companies with ISO certificate pursue, the role of the surface inspection equipment of printed paper is getting bigger and bigger recently. Such a change of equipment from simple quality control to management of web machine is now under way in the name of printing inspection.

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This study examines the lighting conditions, specifically the light source, when assessing printed material at offices. It assumes that the straight-tube type of fluorescent lamp is used as the light source in most offices. The total of 86 commercially available fluorescent lamps, including general, high color rendering(EDL and SDL), and narrow-band(EX)types, were tested. Using CIECAM02, the colors of printed material viewed under a fluorescent lamp were converted into corresponding colors under the standard illuminant, D₅₀ . The difference between colors under the standard illuminant and these corresponding colors was evaluated according to the acceptable tolerance derived from criterion set by experts in the printing industry. The Japan Color was adopted as a representative of typical offset printing. EDL lamps with natural white color or with the daylight color were evaluated as acceptable in accordance with the tolerance. The secondary level of tolerance, Level-II, was derived from criterion established by common observers. This level is applied for general assessments of printing in which critical judgment is not required. All of the SDL lamps tested were evaluated within Level-II, as were EX lamps with natural white color. Proofs printed using DDCPs were also used as a subject for the assessments. Again, EDL lamps with natural white color or with the daylight color were evaluated as Level-I. All SDL lamps were evaluated as Level-II, as were EX lamps with natural white color and R_a above 88. In conclusion, an EDL lamp with natural white color is required when critical assessment has to be performed. Alternatively, an EDL lamp with daylight color may be used for the assessment. For general day-to-day assessments, which doesn't require as strict assessment decision, an EX lamp with natural white color and R_a above 88 can be used.

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In recent years the number of counterfeit crime of the security prints and illegal entry into a country has increased steadily. Therefore, it is highly demanded that the new counterfeit deterrent technologies should be incorporated into the security prints and documents like passports, and regularly renewed to prevent counterfeiting and falsifying. As for the certification of the security prints and documents, it is effective for the customers to be able to authenticate them easily with a machine, and it is more effective to supply not only the security prints but also a machine to authenticate them to the market at the same time. Then, we have developed the authentication machine for the security prints and documents. This machine is especially available for ImageSwitch, which was developed by the National Printing Bureau. In this experiment it is confirmed that this machine has the ability enough to authenticate various security prints and documents. In this report we also explain various authentication systems and the future possibility of using mobile phone in the systems.

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