The advantage is that when many users share a printer

green laser pointer is the environmental product and will do no harm to the human body.
The emission power of green laser pointeris stable.When the printer controller receives data from the computer, the printer is generally taken to work in two ways: one is the data to print directly to the interpreter, known as "section work", the printer does not work this way a lot of cache and memory, common type of printer use more of this work. Another is to transfer the data stored in the printer's internal hard drive, ready to be printed out when used, also known as the "pool work," many high-end printers to use this work. The advantage is that when many users share a printer, which can issue print commands without having to wait, and save data communications transmission latency, but its price is more expensive. Laser printer in its print speed, print quality, high advantages in people's daily work more and more popular. But how it works, not many people. Based on the working characteristics of laser printers, light and laser printer works.
Re: shenjieokok - Assistant three 3-28 12:47
Based on principles of light amplification by stimulated emission of coherent radiation produced. green laser pointer is an instrument for pointing and it has been extending continuously. Laser has the following characteristics: ① orientation is good. Very small solid angle of divergence of laser generally 10-5 ~ 10-8 steradian range. Highly directional laser means that the laser energy is concentrated in a very narrow beam. ② high brightness. Common source of low brightness, the brightness of the sun is about 103 W / (cm 2 ? steradian), and high-power laser light up to 1010 ~ 1017 W / (cm 2 ? steradian). ③ good color. Monochromatic laser usually v / Δv to characterize, v is the laser line center frequency, Δv for the spectral bandwidth, the better laser v / Δv of up to 1010 ~ 1013. Good color that is a good temporal coherence. ④ good spatial coherence. Laser pointing is the rudimental function of green laser pointer. Common source of spatial coherence is poor, the wavelength of the optical path difference for the thousands of times when there has been no interference; the laser wave field almost the entire space is coherent.
Good use of laser targeted and high-brightness, in the distance, radar, optical communications, medical, mechanical processing (welding, cutting, drilling, etc.), missile guidance, and so widely used in nuclear fusion experiments.
green laser pointerof low price is very popular. Will be available for waste toner powder parts and components installed by open position when the recovery, plugged in on both sides of the metal card sales. Cartridge installed, it should open the drum shutter, turn the drum core side of the gear light up a few laps, residual toner drum is cleared, installed ready for use. When the paper appeared on a regular black spots, that the drum has been damaged should be replaced.