The core of digital proofing technology is the application of color management technology. At present, some manufacturers claim that their own printers have a larger range of color gamut than printers. In fact, almost all ink-jet printers have a color gamut larger than the print color gamut. The key to digital proofing is color management rather than the print gamut that the printer can reproduce. Because only the use of an appropriate color management system can uniformly print the color reproduction characteristics of displays, proofers, printers, and various devices throughout the entire process, ensuring uniform color throughout the printing process.
At this stage, there are many factors in China's printing industry that are not conducive to the development of digital proofing.
First, the incompatibility of printability brings a lot of inconvenience to digital proofing, and there is a lack of uniform standards for digital proofing equipment; the color between various printing equipments is not stable and true color management cannot be achieved. The proofing machine speed, humidity, humidity, ink volume and the surrounding environment are all factors. Secondly, the international digital proofing color matching is based on European standards and is not suitable for the standards of existing printing factories in China. Again, there is a mismatch between the management software of digital proofing and matching equipment such as printers and photo-composing machines. These factors constitute the bottle strength of digital proofing development and promotion in China.
Based on this status quo, China Hewlett-Packard Co., Ltd. and Beijing Rainbow Digital Technology Co., Ltd. jointly launched a new "Hypertech Digital Proofing System." The system is based on HP large-format printers, combined with color management data blocks developed by Rainbow Dijet and suitable for China's national conditions. It can adjust the differences between domestic printing standards and international standards. Designed specifically for China's printing and publishing industry, it has received approval from a number of experts from the Beijing Printing Association's Science and Technology Committee and has strong promotion potential. It is a true digital proofing system that is suitable for China's national conditions.
The hardware of the HP Dijet Digital Proofing System is HP's recently introduced “Photo Hand†A3+ format hp designjet 10ps/20ps series digital design proofer and Hewlett Packard’s “Hyper Quality†all-around hp designjet 5000 large format printer. The output terminal cooperates with the Rainbow Color Management System CMS developed by Beijing Rainbow Dijet Digital Technology Co., Ltd. This new digital process proofing combination improves the deficiencies of traditional digital proofing products, making the entire workflow easier and time-saving.
The rainbow color management system CMS uses the ICC standard to manage the gamut space of different devices in the workflow, and consists of three parts: one is the device-independent CIE reference color space; the second is the device's ICC profile PROFILE; and the third is The color management module CMM in the management process. Among them, the color management module CMM is the core, it is the use of professional digital proofing software combined with other color management software, fine-grained data integration of color space conversion. These data are concentrated on commonly used printed materials and processes in the country, and are subjected to a large number of in-depth color space model experiments under different production conditions to simulate the printing and proofing results, so the data is accurate and comprehensive.
When rainbow color management system manages the color of proofing, it usually goes through the following three basic steps:
1. Generate ICC profiles that reflect proofing or printing characteristics. For traditional proofing or printing standard ISO IT 8.7/3 color block diagram, rainbow ink control data management standard, software PrintOpen (or ProfileMaker, ColorFlow), and spectrophotometer X-rite DTP-41 (or GretagMacbeth SpetroScan), Generate ICC profiles that reflect printability.
2. Generate an ICC profile that reflects the characteristics of the color printer and the printer paper used. For color printers that print ISO IT 8.7/3 color block diagrams without color management, the same software and the same spectrophotometer are used to generate the printer's ICC Profile.
3, color gamut conversion. The ICC Profile of printability and the ICC Profile of the printer are used in the digital proofing software, and the data conversion of the color space is performed using the HP Dijon Color Management Module CMM, so that the image and the corresponding printability of the image printed by the HP printer are printed out. The standard proofs achieve the same color.
Hewlett-Packard has a wealth of experience and strong technical support in the printing industry. In addition to providing comprehensive and systematic pre-sales training and after-sales services, there are powerful and difficult-to-comparing advantages in hardware facilities, software development, and technical support. These are also one of the important reasons why people choose HP.
Now we can answer people's questions affirmatively: Digital proofing, with its many advantages, is moving towards the last barrier in the field of printing - traditional proofing, with the continual development and improvement of the corresponding product technology, and the continuation of marketing, digital Proofing with its strong vitality will certainly replace the traditional analog proofing. Digital proofing is a set of emerging technologies. It is a technology that is continuously improving and is not only a simple combination of RIP software and printers. The core technology of digital proofing is the color management technology, and the key is not the printer-reproducible printing color gamut. We must choose the appropriate color management software and select the right digital proofing system based on the actual production conditions and the printability of various materials... ("HP Corporation")
At this stage, there are many factors in China's printing industry that are not conducive to the development of digital proofing.
First, the incompatibility of printability brings a lot of inconvenience to digital proofing, and there is a lack of uniform standards for digital proofing equipment; the color between various printing equipments is not stable and true color management cannot be achieved. The proofing machine speed, humidity, humidity, ink volume and the surrounding environment are all factors. Secondly, the international digital proofing color matching is based on European standards and is not suitable for the standards of existing printing factories in China. Again, there is a mismatch between the management software of digital proofing and matching equipment such as printers and photo-composing machines. These factors constitute the bottle strength of digital proofing development and promotion in China.
Based on this status quo, China Hewlett-Packard Co., Ltd. and Beijing Rainbow Digital Technology Co., Ltd. jointly launched a new "Hypertech Digital Proofing System." The system is based on HP large-format printers, combined with color management data blocks developed by Rainbow Dijet and suitable for China's national conditions. It can adjust the differences between domestic printing standards and international standards. Designed specifically for China's printing and publishing industry, it has received approval from a number of experts from the Beijing Printing Association's Science and Technology Committee and has strong promotion potential. It is a true digital proofing system that is suitable for China's national conditions.
The hardware of the HP Dijet Digital Proofing System is HP's recently introduced “Photo Hand†A3+ format hp designjet 10ps/20ps series digital design proofer and Hewlett Packard’s “Hyper Quality†all-around hp designjet 5000 large format printer. The output terminal cooperates with the Rainbow Color Management System CMS developed by Beijing Rainbow Dijet Digital Technology Co., Ltd. This new digital process proofing combination improves the deficiencies of traditional digital proofing products, making the entire workflow easier and time-saving.
The rainbow color management system CMS uses the ICC standard to manage the gamut space of different devices in the workflow, and consists of three parts: one is the device-independent CIE reference color space; the second is the device's ICC profile PROFILE; and the third is The color management module CMM in the management process. Among them, the color management module CMM is the core, it is the use of professional digital proofing software combined with other color management software, fine-grained data integration of color space conversion. These data are concentrated on commonly used printed materials and processes in the country, and are subjected to a large number of in-depth color space model experiments under different production conditions to simulate the printing and proofing results, so the data is accurate and comprehensive.
When rainbow color management system manages the color of proofing, it usually goes through the following three basic steps:
1. Generate ICC profiles that reflect proofing or printing characteristics. For traditional proofing or printing standard ISO IT 8.7/3 color block diagram, rainbow ink control data management standard, software PrintOpen (or ProfileMaker, ColorFlow), and spectrophotometer X-rite DTP-41 (or GretagMacbeth SpetroScan), Generate ICC profiles that reflect printability.
2. Generate an ICC profile that reflects the characteristics of the color printer and the printer paper used. For color printers that print ISO IT 8.7/3 color block diagrams without color management, the same software and the same spectrophotometer are used to generate the printer's ICC Profile.
3, color gamut conversion. The ICC Profile of printability and the ICC Profile of the printer are used in the digital proofing software, and the data conversion of the color space is performed using the HP Dijon Color Management Module CMM, so that the image and the corresponding printability of the image printed by the HP printer are printed out. The standard proofs achieve the same color.
Hewlett-Packard has a wealth of experience and strong technical support in the printing industry. In addition to providing comprehensive and systematic pre-sales training and after-sales services, there are powerful and difficult-to-comparing advantages in hardware facilities, software development, and technical support. These are also one of the important reasons why people choose HP.
Now we can answer people's questions affirmatively: Digital proofing, with its many advantages, is moving towards the last barrier in the field of printing - traditional proofing, with the continual development and improvement of the corresponding product technology, and the continuation of marketing, digital Proofing with its strong vitality will certainly replace the traditional analog proofing. Digital proofing is a set of emerging technologies. It is a technology that is continuously improving and is not only a simple combination of RIP software and printers. The core technology of digital proofing is the color management technology, and the key is not the printer-reproducible printing color gamut. We must choose the appropriate color management software and select the right digital proofing system based on the actual production conditions and the printability of various materials... ("HP Corporation")
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