Low cost and high efficiency LED technology to light up the future of print

Semiconductor lighting (LED) because of long life, energy saving, green environmental protection of significant advantages, showing a good development prospects. Since 2006, "" in our country, LED has been regarded as a major project. At present, the main market for LED applications include backlight, display, automotive, electronic equipment, traffic signals and lighting, etc..

At the Information Corporation (OKI), LED imaging technique is applied to the first printer products, and in a very long period of time, a variety of OKI color printers are using LED imaging technology, LED imaging technology has become the standard setters and LED printer camp only rye.

As an international LED technology leading experts, executive director, Image Media Research Institute president Yamamoto Matsuo before the sermon on OKI seats in china.

LED technology breakthrough print limit

At present, LED has been widely concerned, the main reason is that the global environmental protection, energy conservation issues unprecedented concern, China is no exception. Therefore, Yamamoto Matsuo believes that LED is a promising technology, which is beyond doubt. But at the same time, he believes that in the printing field, there is a certain bias on LED printing.

1960s is the typewriter printer, into the beginning of 70s changed, the dot matrix, the pixel imaging method has gradually become the mainstream, by 80s, various printers swarmed out. But the general trend is that the dots are more subtle, more precise, and more accurate. And now this stage is the world of laser printing, but Yamamoto Matsuo believes that in the near future, the printer market will become the world's LED.

First look at print quality: the current LED mode and laser printing quality in the same way, but there has been a tendency to exceed the laser LED. In the near future, LED has the ability to achieve the same effect as the printing press. Followed by the print speed; in 8ppm, the two are similar; but to the 30ppm, LED will show the advantage; and then to 60ppm, 120ppm, the laser can do nothing. Third resolution: 300dpi, 600dpi, when the laser and LED almost, into the 1200dpi when the laser completely lost competitiveness. OKI lab is studying the 2400dpi print head, in theory, 4800dpi is not impossible.

However, the LED technology from the laboratory to get the market needs commercialization, the need to address the cost price. Therefore, OKI invented the EPI technology, this technology can achieve a significant reduction in the cost of LED head. The introduction of the LED print head causes the printer to shrink exponentially, and the weight is greatly reduced. These will reduce costs.

In addition to print LED can break through the limit of the laser can not reach, in terms of life, the overall cost, LED also has the advantage.

Yamamoto Matsuo said: LED hair head and the distance between the photosensitive drum is very small, resulting in a very small printer size. In terms of volume reduction, the LED printer is larger than the laser printer. Because all LED semiconductor components, so stability, reliability is very good. "

From the imaging quality, LED and laser is the difference between the imaging point diameter. The trend of the development of the printer is that the imaging resolution is more and more fine. The limit of the laser point diameter is 65 m, from the optical point of view, it can not be small, and LED has been achieved at 25 m, but also may be smaller.

Energy saving and environmental protection is the development direction of printing technology

LED has always been known for its energy saving and environmental protection. According to Yamamoto Matsuo introduction, OKI in the latest printer using a EPB technology, which is an environmentally friendly technology. Simply put is to remove the harmful material attached to the basement membrane, the formation of LED hair bald. This technique produces only a few dozen of the other manufacturers. The size of the hair head will inevitably reduce the size of the internal structure of the printer. Whether this is in the production process, or transportation, recycling process will have some benefits to the environment.

In addition, laser printing will inevitably produce ozone. The LED luminous energy is small, will not ionize the air, naturally will not produce ozone. It is very important for environmental protection and health of the office.

As for the environmental problems of an electronic product, on the one hand, the product itself is energy saving and environmental protection; the other aspect is its production, packaging, transportation, marketing and so on the energy saving of the supply chain. Yamamoto Matsuo said, from the design stage, compared with the laser head LED head design is very high degree of freedom. LED head can do a long time, for example, is now A4 models, to develop into the A3 model as long as the LED head extension can be.

Yamamoto Matsuo introduction, environmental protection has been a cause of great importance to OKI. In August this year, OKI and the Dalian Industrial University official cooperation, the main project is the production of printing paper. At present, the high-grade printing paper is really suitable for the printer. OKI hopes to use some shrubs, straw, vegetation to produce high-grade printing paper. If the study is successful, it should be said that the cause of environmental protection is also a contribution. In transportation, because it does not need to rely on imports, can greatly saving energy, in the transport chain. In addition, a large area can be planted in the desert of raw materials, to prevent desertification, which are of great help to China environmental protection.

LED can subvert the print market?

At present, both the Chinese market or the international market, the dominant position or