Future lit by LED

Recently, the industry a well-known laser printer production company announced the successful development of LED light source print head, and at the same time released the use of LED print head of several new page printer. This may give the industry some hints that the era of LED is coming. "Laser" and "LED" are two kinds of optical scanning methods of the page printer. With the rapid development of the color printing market, the debate between "laser" and "LED" has become a hot topic.

Technical experts interpret LED

Because the laser is a has been developed for a long time, so the laser printer occupies a very large market share in the current market, it is the market share gap gives rise to some doubts and misconceptions about LED technology. Japan LED technical experts Mr. Yamamoto Matsuo's insights can guide us to correctly understand the LED technology.

(1) long life. Because the LED print head with semiconductor components, so the stability and reliability of the print head is very good, and the light emitting diode LED printer in low voltage and low power state, there is almost no aging, life can be very long. The laser is driven by a motor rotation, because the motor life is limited, and compared with the LED print head, the laser light source to higher output power, so the laser print head life is relatively short.

(2) high imaging quality. The imaging resolution represents the imaging quality. With the development of the printer technology, the imaging quality will be further improved with the increase of imaging resolution. The way to increase the resolution of imaging is to reduce the imaging point. From the optical point of view, the laser point has reached the limit, and the LED can be done smaller. Due to the thick laser imaging point, resulting in dark lines of the font edge will be very vague, can not see.

(3) low cost. In the industry, some people think that, "in order to improve the resolution of the LED printer to print, not only to integrate LED devices more in his head, but also for the LED device will reduce the diameter, also need to solve the problem of LED light interference, which greatly increases the difficulty and cost of production process". A new technology of semiconductor -- EFB technology is to solve this problem, reduce the cost of the core technology, EFB technology can make a very thin LED film adhered to the substrate, the corrosion, can make the LED film into a LED head point size is very small, greatly enhance the image resolution. The substrate can be used repeatedly, and the cost will be greatly reduced. With the continuous development of technology, LED has a lot of room for development.

(4) high scalability. Compared with the laser, LED print head design freedom is very high. For example, if the A4 format from the printer to the A3 format, just need to extend the LED print head can be. The laser needs to open a space in order to scan a wider range, which not only increases the volume, but also increases the cost.

Don't give up

From the development history of the printer can be seen, in 1880s, the printer all use laser light source, but then the laser volume is very large, so if the commercialization, reducing the volume is the key. At this time there are three kinds of Technology: semiconductor laser, liquid crystal, semiconductor LED way, through the formation of the competition between these three camps. Because the liquid crystal speed is very slow, therefore has been eliminated, but the laser light source needs a complete set of optical system, has the strength to complete this system is some camera manufacturers. OKI company to do alone technology as the starting point, began to focus on the application of LED technology in the field of printer manufacturing.

The road ahead is rugged, precision from 2% to 1%, how to achieve 1200dpi resolution, have become insurmountable barriers, Fujitsu, NEC and other manufacturers have to give up in front of OKI barriers to insist on their own, but in a choice, do not give up, do not abandon the spirit, insist to achieve a very. Good results, have their business throughout the world commercial and office applications, and in the forefront of the global market share.

LED camp's growth, so that OKI is no longer lonely, but the growth of the LED camp, so that OKI is facing more severe competition and challenges. OKI welcome this competition, this competition is brought about by changes in the industry chain, is to bring the continuous improvement of LED technology.

Future lit by LED

In addition to the LED printer camp and more recruits, the 2008 Olympic venues - Beijing water cube lighting, well-known brand car headlights, festive decorative lights, high-end LCD display led...... Are using LED technology. Data show that, in order to focus on environmental protection is famous in Europe, the rise of LED color printer is very fierce. In Canada and other countries emphasizing environmental protection and intelligent applications, LED color printer sales are more than the traditional laser printer.

The user is the final judge of the trend of the market, with the development of printing quality, cost, environmental protection and other aspects of the requirements, the market will have an accurate judgment of "laser" and "LED", we can foresee that LED is by virtue of their own strong technical characteristics "to illuminate the road of development".

Source: Branch printing network