Phototypesetting machines have emerged in the world with the development of printing technology. In 1048, China's Bi Sheng invented the movable type printing, which is a milestone in printing technology. Four hundred years later, in 1448, the German Gutenberg invented the typeface printing using metal melting casting. World printing began the era of "fire and boat". In the middle of this century, with the development and application of electronic technology, laser technology and polymer materials, it has brought tremendous changes to the world of printing. Some countries with more developed industries have realized the upgrading of printing technology. "Achieved long-term progress. The first, second, third and fourth generation photo typesetting machines have been invented abroad. This imagesetter is connected to a computer to form an editing and typesetting system, which can replace formal publications such as typefaces, typographical books, newspapers, etc., and significantly improve labor productivity. The first generation was a manual photo-aligning machine, which was first created in the United States in 1946. Unlike the letterpress type, the font is not made up of typefaces but on lithographs. Under the control of the keyboard, the selected word is aligned with a window and is sensitized on the negative film under strong light. China has mass-produced manual photo-aligning machines. The second generation is an optical camera. The first in the United States in 1951. The text is engraved on a disc or cylinder, and the disc moves at high speed during the photographing process. The third generation is a cathodic line phototypesetting machine. It was first created in West Germany in 1965 and gradually matured in the late 1960s. The font is stored in the computer in the shape of a digitized dot matrix. The output device is a cathode ray tube that scans the dot matrix of Chinese characters or Western letters on the screen and images the film. The fourth generation is a laser imagesetter. The first in Britain in 1976. It has all the advantages of the three generations of machines, and the requirements for the film are very low. In addition, it is more attractive to be able to transition to laser direct typesetting, which is the future development direction. Article source address: http:// This is travel factory PC luggage for men, which is more durable than ABS with a little PC. The surface material of the men's luggage is 100%PC, not easy to peel and break. The wheel of business suitcase is 360 degrees universal double wheels design for rolling smoothly. The Tie rod still uses the solid aluminum alloy tie Rod. This plastic is unique as it is lighter than most aluminum travel luggage, is scratch resistant, and is less likely to crack during travel. It is also big capacity for putting more things. Pc Luggage,Vintage Suitcase,Travel Luggage,Custom Luggage, luggage to travel, luggage and travel bags, luggage box, luggage with wheels,luggage to travel, luggage to travel Zhejiang Yinglin Luggage Co. Ltd , https://www.yllcluggages.com
Development trend and application prospects of imagesetter