Muddy! LED printing VS laser printing analysis and comparison

Electronic imaging printer currently exist in the market can be divided into two categories, one is our laser printers the other is for having heard it many times, not common LED printer (inkjet printer does not belong to the category of electronic imaging). And I just started, perhaps many of my friends do not know what is the LED printer, the author will introduce to you in detail the differences between LED printers and laser printers, and their current market environment in which.

Comparison of advantages of LED and laser technology:

In fact, LED printing (Light Emitting Diode) is not a new technology. In the beginning, it was mainly used in black and white printers. LED printer using a group of light emitting diode (LEDS) to scan the photosensitive imaging, and laser printers using laser technology, which is the LED printer and laser printer biggest difference, in addition, the working principle is very similar to the other. It is necessary to introduce the LED scan imaging technology: LED photosensitive imaging using a dense array of LED as a light transmitter, the data signal into the electrical signal and then transmitted to the optical drum imaging. Laser imaging technology is the data signal is transmitted to all a transmitting device emits light through the rotation of the prism reflection image on the photosensitive drum. In this way, the imaging process of LED technology is obviously simpler than that of the laser imaging process, and because of this, the LED printing technology is usually superior to the laser printer.

In fact, the impact of printing speed is not only for the above reasons, in addition, the laser printer laser head needs to achieve the photosensitive drum on each line of optical data scanning and calibration. The LED printing using multi point light source, without the need for tedious scanning process, can also be maintained at high resolution printing.

In addition, because LED technology using array transmission accounted for spot, therefore the print produced can be very small, so that not only the text printing can be very subtle strokes clear performance, but also conducive to the transition of gray or color. However, LED printing, image plane every point corresponding to a light emitting diode, such as the 8 inch long document surface with 300dpi imaging, there should be a 300*8=2400 light-emitting diode, so the higher the resolution, the imaging surface is larger, the number will be more diode. This is one of the shortcomings of the LED printer: with the increase in print resolution, dot matrix must be followed by doing a little more, so, R & D and production costs will be greatly improved. So now it seems that the common LED printer maximum resolution is only around 600dpi. The laser printer has to go to 2400dpi, and with the resolution increased, Jida technology costs did not change much, but the LED printing system to the high cost of investment. This is also one of the most important factors hinder the development of LED printers.

On the other hand, due to the high heat output, it is difficult to improve the life of the laser printer imaging system to another level. LED imaging system because of the use of light-emitting diodes, so the light source life than the high laser printing. However, it is precisely because of the use of light-emitting diodes, the quality of its print or fine analysis to the depth of the color is not bright laser printing.

It is also worth mentioning that the environmental performance of LED printers is better than laser printers. LED can produce bright light source under the condition of low voltage directly, so it is one of the outstanding advantages of energy saving, electricity saving and no ozone generation. When the traditional laser printer works, it will produce a large amount of ozone and other harmful substances.

LED printer brand:

The manufacturers, in addition to the OKI LED printer has been a loyal supporter of the outside, as well as Fujitsu, Jolimark, Casio and Lexmark have Kongyue relates to the technical field of this, but they are the products of historical market share is quite low. In addition, in the high-end applications, as well as Eastman Kodak (mainly 92ppm model), Siemens Nixdorf (mainly from 50 to 744ppm printer), and Xicon (more than 25ppm), etc.. From a long-term perspective, I am not optimistic about the prospects for LED printers. But because of various advantages of LED printer, at present there are still many such products listed, such as OKI recently launched a new LED printer C3200, in addition to continue to maintain a high speed printing color 12PPM, except black and white 20PPM, print resolution is also improved to a rare 1200*600dpi. OKI supports LED printer, printing market to meet as equals and laser printing technology with HP and EPSON as the representative, has a really amazing strength.

LED printer products:

Although LED printers in the current market is rare, but because of its outstanding advantages and characteristics, in some areas such as surveying and mapping, printing, photocopying and other specific areas of the user still has a certain market.

OKI C5200 compared to the previous generation of products C5100, which speeds up by 30%, to achieve color 16ppm, black and white 24ppm, can be regarded as the current million yuan low-end color printer among the fastest printer. Compared with the ordinary printing technology Jida, a OKI C5200 imaging using LED saves lens rotating equipment, reduces the manufacturing cost; in addition, it uses a non oily toner, for writing, stamp and ballpoint pen paste and other office operations allowed in print proofs; in addition, the OKI C5200 color printer through the manual tray the paper can realize the straight way, the maximum can achieve 1.2 meters long playing format