(Offset's Rough Road To Prominence) Into the electronic prepress era, Kon Newton, senior senior deputy general manager of digital systems at ABDick, recalled: “I entered the business in 1971, when offset printing firmly established her position. But commercial printing The pre-press part of China was just beginning to develop. Its development has greatly accelerated the rapid development of offset printing." This change is like a thunder in the printing world. The driving force behind this revolution is not the power of explosives, but color. The emergence of the prepress system (or called CEPS). With the development of automatic high-end color separation technology and screen full-page imposition design, which is the longest and most difficult problem for offset printing, CEPS becomes the direction of reform because it makes color products easier to transmit and form. WYSIWYG (WYSIWYG) full-text graphics layout system. Prior to this, printers still used the camera color separation method, and sometimes even manual color separation; although due to the high price of CEPS so that it can not be used by a large number of printing plants, it is, after all, the future development direction of offset printing and prepress technology. Although not as good as offset printing, electrostatic printing helped to push offset printing to a new height in the 1970s. Since Xerox introduced the 914 machine in 1954, electrostatic printing is ready to surpass offset printing in the short-lived area. Because there is no need for preparations such as similar pages and wire binding, electrostatic printing is very convenient and fast for short-run printing. It does not require all preparations for offset printing. Mel Zischler, chairman of the Graphic Production Services for Principal Financial Group, explained: “I think that electrostatic printing has forced printer manufacturers to keep up with the needs of printers because they want to remain unbeaten in the competition. It is necessary to find a way to make preparations faster.†The result of the competition is that printing equipment manufacturers are more focused on increasing the speed of printing and increasing automation. In the 1970s, Chinese presses, push-button controls, and mechanical automatic ink supply systems all became standard configurations, all of which increased the speed of printing in an attempt to withstand the impact of electrostatic printing. Although offset press manufacturers have never claimed to defeat electrostatic printing equipment on short lived products, electrostatic printing has actually helped to promote offset printing to its current status. Automation Regardless of how the technology advances and develops, operating a printing press is still a technology. It needs to be a standardized science and requires more advanced automation. "I think through the 1980s, they have realized that printing is a completely repetitive science." Newton explained: "So when they realized this, they began to develop printing automation." Since 1985, people Began to use computers to control the printing process, such as transferring ink, dampening, adjusting the registration, and reading the plates all automated. These changes not only simplify the operation but also help improve the printing efficiency. By introducing computers into offset printing, printers can not only find and solve some of their own problems, but also prepare for the next step. As a result, the efficiency of offset printing and the extent of widespread use have reached unprecedented levels. Film Loss of Films Perhaps the most important contribution of today's offset printing technology is the direct-to-plate system. Now page information can be digitally transmitted to the platesetter, where information can be read and gathered. The plate was exposed on the ester plate. After the eighties into the nineties, the printing press further developed and the degree of automation became higher and higher. The graphic recorder was introduced as early as the 1980s. It is different from the typewriter that uses lasers to write graphic information on paper or film. It can output color separations and high resolution halftone images. The bulky appearance of offset presses has changed with the development of technology. Offset presses today not only surpass printers in terms of print quality, but also become faster and cheaper in terms of speed and price. However, it still cannot compete with photocopiers in short-run live prints, and it did not change until 1991. Direct Imaging Technology At Print'91's trade show, Presstek and Heidelberg jointly launched GTO-DI, the world's first direct imaging (DI) press. It uses laser to burn out the hole plate on the silicone resin plate, which is no water offset printing, and the machine type printing represents the future development direction of the short live offset printing. It eliminates prepress preparation processes such as filming, developing, stripping and plate making. Today, these configurations are no longer fresh, but at the time it was comparable to laser photocopiers, satisfying on-demand color printing, especially for short-run printing. Slowly growing sales Less than 100 GTO machines were sold in Heidelberg in the first two years of development, and no one can be sure how the market will develop. In fact, no one was doing the DI printer market at the time. Heidelberg's Blumberg explained: “When we started, we were the only sellers, and it was very difficult for customers to believe that this would be the direction of future technology.†In 1993 Presstek applied laser imaging technology to the GTO. . At Drupa'95, Heidelberg sold more than 600 DI presses. The slow-developing press industry started to catch people's attention. Other vendors followed suit. In 1996 Omni-Adast and Presstek introduced the 705CDI series of DI-type printing presses. Four years later Drupa 2000, more than a dozen printing manufacturers have launched their own DI solutions. The offset printing technology that still dominates When digital direct imaging technology may become the direction of future development, today's offset printing technology still dominates the world. Since 1798, Alois Senefelder invented offset printing technology, it still can meet the most extensive printing needs. In spite of letterpress printing, gravure printing, electrostatic printing, and current direct imaging technology, offset printing is still the world's most widely selected printing method that can meet the needs of printed matter better than other methods. Perhaps its sturdiness and durability are in its own simple principle. Whatever the reason, it can be said that offset printing technology will remain its unbeaten position in the next 50 years.
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