Today, the technology of digital printing presses is developing very quickly. Many new models are configured for spot color or process color printing, which can greatly expand the application range of on-demand color printing.

The printing giant Xerox has always been known for releasing the latest digital printing technology. Remember their digital presses being squeezed by people at the Graph Expo in October? That is really surprising. The National Printing Leaders Association said in its 2006 industry report: "Digital printing is creating one exciting miracle after another." The association found that 75% of all companies surveyed Digital printing presses are regarded as their main body of production: this printing press can produce continuous variable data content: and this service will be an area that has not developed the fastest in the next few years.

PIA / GATF expects digital printing jobs to increase by 4.2% this year, and calls 2006 the "digital printing year." When people realize the benefits of digital printing technology, the number of digital printing committee members has tripled.

The Chief Executive Officer of the Digital Printing Committee, Michael Makin, said: "Most of our members are very interested in digital tones, and we often conduct research on this technology. We have been closely watching its development trends." In 2007, Digital The basic structure of the printing committee will be adjusted, so that all members will benefit from the new management model.

Overall, the improvement in color production quality and all the digital presses exhibited at this year's show proved to us that printing quality is no longer an obstacle. The comprehensive workflow and the cooperative relationship between manufacturers enable digital printing machines to find their place in the offset printing plant. Equipment manufacturers are also constantly working to reduce the cost of products, such as xpedx's click-to-pay product JJ Bender for high-speed printers such as iGen3s and NexPresses.

The latest digital press

The core of digital printing machine development is the compatibility between the equipment and toner. The so-called "toner" is digital printing ink. The significant increase in toner production has been reflected in the expansion of Toshiba ’s toner production plant in Mitchell, the company ’s number of employees has tripled, and the plant area has doubled to 100,000 square feet . This year, Toshiba will also invest US $ 15 million to increase the production capacity of color toners. At the same time, it will also become the only OEM manufacturer in Japan that produces color toners.

All in all, to judge whether a toner is traditional or chemical, mainly depends on its production method. Mixing plastics, colorants and additives together, and then making these materials into fine powder, this is the traditional method of making carbon powder. People can also make these powders into different sizes and shapes as needed. Toner particles produced by chemical methods are relatively small and uniform.

IBM enters the inkjet market

The IBM Infoprint color technology demonstration conducted by IBM at the Graph Expo showed us how to use inkjet printers to print color duplex pages on a 20.4-inch wide web.

Canon produced S toner through a product called Suspension Polymerization.

Konica Minolta's Simitri HD toner and Xerox's EA toner use emulsion polymerization technology. Emulsification is a comprehensive chemical treatment process, which can make the carbon powder resin form an emulsion, and synthesis means that the various components of the carbon powder should be gathered together to make the appropriate size (pre-designed size) and shape (spherical shape) ).

Toners for digital printing presses are also a continuous source of revenue, because these products are designed for specific presses, whether they produce toner themselves or substitute other brands of toner.

John Laing, senior vice president of Xerox ’s supply department, pointed out that his company and most other printer manufacturers use traditional toner on their own color printers, and chemical toner on office / workgroup printers. This change has already begun. Laing said: "The intersection of toner size is the size that traditional and chemical toner can convert, which is about 7 microns."

He also pointed out that for toner, there are many more important parameters than size. The choice of pigment and its dispersibility are very critical. Pigment will affect the performance of toner, and its charging efficiency directly determines the gloss of the printed matter.

Kodak also uses traditional toner on its NexPress press. In the coming months, the company will also launch a new magenta ink with strong light resistance. It will be provided to all new and old customers and will replace the original magenta ink. Kodak will announce this on a specific day.

In terms of chemical toner, Konica Minolta's new Simitri HD color toner was developed specifically for the printing market, and will be used for the first time on bizhub PRO C6500 printers. The company claims that their smaller particle size can help users print smoother tones and clearer text. In addition, it can also reduce the amount of toner used, thereby reducing production costs.

Canon's latest imagePress C7000 VP toner is a kind of ground toner, not chemically synthesized. The image quality of this toner is better than chemical toner. V-shaped toner uses particles with an average size of 5 μm. Due to its small toner particles, it can print out the details of the image and improve the overall quality of the image. V-type toner does not use hot-melt oil, but is filled with wax (wax can help the toner adhere to the page). Removal of hot melt oil is helpful to reduce the occurrence of faults or the reflection of printed pages. In addition, V-type toner can achieve a larger color gamut than offset presses.

Xeikon claims to be the first company to use polyester setting toner in high-speed color printing. Punch Graphix, the company's parent company, believes that their new FA toner technology combines the advantages of chemical toner and traditional toner. It is understood that FA toner has passed FDA certification and can be used directly in food packaging.

Xeikon launched the Xeikon 6000 digital digital printing press in mid-September and exhibited it for the first time at the Graph Expo in the United States. This printer can print 160 pages per minute, and the maximum monthly output is close to 4 million pages. It can print paper thicknesses between 40 and 350 gsm, and can print on a variety of substrates including cardboard. Xeikon 6000 adopts the newly released X-800 digital front-end system, which can provide users with high-speed support, FA toner support, fifth-color printing and color management functions.

In the low-speed color production printer market, Océ model 900, Xerox DocuColor 5000 and Konica Minolta's bizhub PRO C6500 digital color printing system are the latest products released in October this year. They use different ink formulations. And printing drive technology.

The luxury version of bizhub PRO C6500 is priced at $ 41,700. It contains an embedded Fiery controller and is a high-end device suitable for the low-end market. For this tile, it can also be equipped with Fiery IC-303 and Creo IC-304 systems.

The monthly output of Xerox DocuColor 5000 digital printer is between 30,000 and 150,000 prints. It can provide users with a resolution of 2400 x 2400 dpi, accurate registration functions and stable color management tools. It also provides them with three Optional front-end system and post-processing equipment. The deluxe version of this device is priced at $ 144,000.

At Graph Expo, Xerox announced that it will upgrade its DocuTech 180 Highlight color system, which is very suitable for the production of books, brochures and catalogs. A series of customized colors will appear on all DocuTech highlight color systems early next year.

Océ has added spot and mixed color printing capabilities to its VarioStream 9000. At the Graph Expo, the company also exhibited a 9230 printer, which can print monochrome pages or positive and negative three at 231 ipm. Colored pages. In addition, the Océ 9000 series printer can also have fourth and fifth color units, which can bring more color choices for users. Even in the case of three-color printing, the 9230 can produce half-tone patterns of excellent quality. , And can simulate the effect of four-color printing: this technology has been applied to the phone book printing process. Océ hopes to bring the positive and negative four-color mixed color printing system to the market in the second quarter of next year.

Canon's imagePRESS C7000VP is a digital printing machine with a speed of 70 ppm. It was first launched last spring and attracted strong attention at the Graph Expo. This $ 230,000 printing press is equipped with a Fiery-driven image-PRESS Server A3000 server. The image quality during high-speed production and the ability to print on different substrates are two of the most attractive features.

Inkjet technology goes all the way

Although toner technology has been improving, its competitor inkjet system has also made a series of breakthroughs. After years of trade-offs, IBM decided to enter the color inkjet printer market. At Graph Expo, the company demonstrated its inkjet technology. This technology can bring users 19.96 inches of printing width and 720 x 360 dpi resolution. IBM said it would release the technology in "phases" by 2008.

The screen company exhibited its Truepress Jet520 inkjet printer for the first time on Print 05. It is also a continuous-feed printer, capable of printing paper with a width between 6.4 and 20.4 feet, and it can achieve a speed of 209.9 fpm The resolution reaches 720 x 360 dpi, but if the resolution is increased to 720 x 720 dpi, its speed will drop to 104.9 fpm.

Kodak's Versamark system has a continuous inkjet printhead that can produce "commercial color" prints at high speeds, and is the largest competitor of IBM and Screen. The Versamark system uses a modular design that allows users to upgrade the device according to their needs. The system has three speed options: 250 fpm, 350 fpm and 500 fpm.

Riso exhibited its HC5500 inkjet printer at the Graph Expo. As an improved model of the HC5000, the speed, quality, output and cost efficiency of the 5500 have been significantly improved. Now its maximum speed can reach 120 ppm, and it can be printed on materials such as envelopes and card stock. Users can also choose between two new controller options according to the situation: one for high-end printing environments and one for Standard office environment. The HC5000 printer uses Riso's Forcejet technology to combine color management software with piezoelectric crystal inkjet printheads. The average cost of printing 5,500 color pages is $ 0.03 / page.

These systems show that inkjet technology has challenged digital printing technology: their quality, speed, and cost are very attractive to people. Although the printing quality of these devices is still difficult to compare with thermal or drop-on-demand inkjet large format systems, the European and Asian markets have already given a high evaluation of its printing quality and are widely used in transactional color During printing and variable data printing.

Jetrion, which was just acquired by EFI, also surprised us in September. Its newly launched 4000 series digital UV inkjet printer is a versatile printing device that can combine Xaar grayscale print head with UV curing technology. The company claims that it can produce color labels of the same quality as flexo printing, and that its production costs are also lower than digital color printers.

More inkjet devices will appear in the future. Kodak CEO Antonio Perez responded to a reporter's question in November that they will develop Stream industrial-grade inkjet technology before the drupa 08 exhibition and will improve it by 2010. Perez said: "This is a great epoch-making technology for our company!"

Riso exhibited its HC5500 inkjet printer at the Graph Expo. As an improved model of the HC5000, the speed, quality, output and cost efficiency of the 5500 have been significantly improved. Now its maximum speed can reach 120 ppm, and it can be printed on materials such as envelopes and card stock. Users can also choose between two new controller options according to the situation: one for high-end printing environments and one for Standard office environment. The HC5000 printer uses Riso's Forcejet technology to combine color management software with piezoelectric crystal inkjet printheads. The average cost of printing 5,500 color pages is $ 0.03 / page.

These systems show that inkjet technology has challenged digital printing technology: their quality, speed, and cost are very attractive to people. Although the printing quality of these devices is still difficult to compare with thermal or drop-on-demand inkjet large format systems, the European and Asian markets have already given a high evaluation of its printing quality and are widely used in transactional color During printing and variable data printing.

Jetrion, which was just acquired by EFI, also surprised us in September. Its newly launched 4000 series digital UV inkjet printer is a versatile printing device that can combine Xaar grayscale print head with UV curing technology. The company claims that it can produce color labels of the same quality as flexo printing, and that its production costs are also lower than digital color printers.

More inkjet devices will appear in the future. Kodak CEO Antonio Perez responded to a reporter's question in November that they will develop Stream industrial-grade inkjet technology before the drupa 08 exhibition and will improve it by 2010. Perez said: "This is a great epoch-making technology for our company!"

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