LED color technology allows printing the world multicolored

In the color printer market, consumers are basically able to separate three levels of product if they are classified according to product features and performance: The first category is professional-grade printer products, such as OKIC9000 series, EPSON8600, HPC9500 and Other mainstream products; Is a commercial-grade printer products, such as OKIC7000 series; the third category is SMEs and home office printer products, such as EPSON ALC900, OKIC5000, HP3500 and so on.

If divided according to the imaging printing technology, the more common way is to divide according to the optical scanning imaging technology. The color printer imaging mode is monopolized by two core technologies, which are LED (Light Emitting Diode) printing and laser printing (Laser) technology.

The two core technologies divide the mainstream vendors into two major groups. One group is an LED imaging printing technology advocated by OKI, and the other is an EPSON-led laser printing technology. The two core technologies are in the hands of these two Japanese manufacturers. In the Chinese market, media reports from previous years have focused more on laser printing technology, but have neglected another LED imaging technology that is setting off a huge wave in the world. The LED printing technology, which has been rarely known, became a hot spot in the market due to the promotion of OKI in 2003.

LED printing technology is mainly controlled by OKI. OKI's high-speed digital color printers adopt third-generation LED technology and are outstanding in product performance. According to IDC data, as of the first quarter of 2004, OKI color digital printers jumped to second place in the European market. In China, OKI launched C5000/C7000/C9000 color page printers in China in early August 2003. Currently, it has ranked among the top 5 in the market; among 10 or more color machines, it also jumped to the 2nd in the market, showing that Strong competitiveness. The Chinese users who were originally familiar with OKI dot matrix printers and fax machines gradually chose OKI's LED printers as their key target when purchasing color laser printers.

The following takes OKI's LED printing technology as an example and compares it with ordinary laser printing technology.

LED technology, also known as LED technology, is one of the earliest and most advanced imaging technologies in the world. The most basic composition of LEDs includes a semiconductor wafer containing a plurality of circuits and a light-emitting semiconductor substance. The semiconductor wafer is a core element of the structure, and is surrounded by a protective epoxidized substance and a LED as a light-emitting body. Monochromatic light can be emitted directly in a forwardly inclined direction.

The first commercial use of LED technology was traced back to the 1960s and achieved major developments in the 70s to 90s. The scientific community and professionals continue to replace new chemical substances with LEDs and improve internal systems. LED technology has been widely used by OKI, Toshiba and other manufacturers. Used in fax machines, printers, calculators, testers, optical fiber data transmission and other fields.

After the 1990s, the LED technology from infancy to growth has been unprecedentedly high in the world. Further research and development of LED technology is also being carried out at the same time. The application of LED technology has spread to various fields from traffic to scanning imaging, especially in the OKI. The main printer manufacturers have promoted the maturity of LED technology in print imaging applications, and together with the evolving laser printing technology, they have become the two cornerstones of digital print imaging.

Due to the maturation of LED imaging technology, many printer manufacturers have turned their eyes to this technology field. Some manufacturers who have used traditional laser printing technology have also developed a keen interest in this technology field. With the popularity of digital color printers, LED imaging technology has once again pushed to the forefront of the market. This driving force is mainly from OKI. In order to facilitate the consumers to understand the application effect of this technology, a brief analysis of the LED printing technology is made by taking the High-speed Color Page Printer (OKI) as an example.

First, the optical scanning imaging of the OKI color printer employs a dense LED array as the light emitter, and the electrical data signal is converted into an optical signal by the LED and irradiated to the photosensitive drum for imaging. The technical imaging process of the laser printer transmits all data signals to a light emitting device, and the emitted light is reflected and reflected on the photosensitive drum through a rotating polygonal mirror. The advantage of LED imaging is that the light source volume is reduced, the light transmission distance is short, the light transmission is not limited by the mechanical transmission, the printing speed is ensured quickly, and the resolution is continuously increased as the diameter of the LED is reduced.

Second, LED technology uses thousands of independent digital light-emitting diodes, which can process subtle changes in print data during printing. The resulting printed dots are very small. Not only are small strokes such as black small prints changed during text printing. The performance is clear. When printing an image, the subtle levels in the image can be more abundant. For example, the image printed by OKIC5100 is very clear at the color level; when the laser printer is used for imaging, the laser pulse modulation technology controls the wavelength and amplitude of the pulse of the laser preventer to achieve a more uniform color transition. The LED light source material is a relatively independent digital light source and is directly irradiated on the photosensitive drum, which can effectively avoid the image distortion caused by the optical difference and the speed control system.

Again, OKI color printer LED imaging system is simple and stable, so the light source has a long life, the failure rate is relatively low, stable and reliable. OKI's LED printers have lower overall operating costs. They can be used in one machine or two, and they can completely replace traditional monochrome laser printers.

Fourth, LED printing utilizes multi-point light sources, eliminating the need for cumbersome scanning processes and enabling high-speed printing at high resolutions. The laser head of the laser printer must scan and calibrate each row of data on the photoreceptor drum, which limits the rotation speed on the photoconductor drum while ensuring the integrity of the horizontal proofreading. The OKIC5000 series with core LED technology can print up to 20 pages per minute at black and white, and 12 pages per minute at color. For business users with high productivity, this speed will undoubtedly be the best assistant to handle office documents.

Finally, the LED color printer not only saves energy, but also does not produce odors such as ozone. This is especially important for users who often work around the printer. Due to the increasing maturity of LED technology and its unique advantages in color imaging technology, some laser printer manufacturers have begun to pay attention to and study this technology, I believe there will be more printer manufacturers continue to develop more clear, faster, more energy-efficient, More environmentally friendly color printer products.