It is according to the market expectation of green laser pointer

When the toner magnetic roller rotating scraper position, the magnetic roller, the surface of the toner in addition to with charge, due to the force of the magnetic field so as to form the magnetic spike, that is, the toner fog "on the magnetic roll jacket imposed by the bias magnetic spike orderly lined up. The role of the magnetic roller sleeve control magnetic roller and effective in attracting the distance between the surface magnetic ear drum, is conducive to improve toner beating imaging. Toner: Laser printers use toner is a one-component toner, the principle of the projection method is similar to the NP copiers, the NP method. "Single-component toner is not a carrier, because it does not contain the bowl, the toner will not be able to carry. It is a "carrier" powder into fine particles and toner mixed ultrafine toner particles should be less than 10nm.
The market expectation of   china laser pointer  should be done early
Heating fuser system of the laser printer will print the adsorption of the toner image on paper, using pressurized hot melt immersed in the paper to melt the toner to form a fixed image of the process, known as "fixing". Adsorbed on toner on paper, is formed by the heat of the resin and toner mixing small particles when adsorption have the toner to the paper after the two higher gap without large metal drum caught, toner of the resin melt together with the toner firmly pressure attached to a piece of paper to form a permanent image, but also to complete the entire process of laser printing. Toner melting temperature of about 0 ° C, the temperature of the heat roller and paper by the speed, generally between 150 ~ 180 ℃.
It is the market expectation of   green laser pointer 
Thermistor performance is the higher the external temperature, the lower the resistance of the thermistor. When heated rollers, no electricity, the thermistor resistance of about 200K, the logic control circuit 0101 turns on, the SCR SSR101 conduction heater starts to heat up. Heating roller temperature is gradually increased, the thermal resistance is decreased, when the heater surface temperature reaches about 180 ° C, the thermistor resistance to a minimum of about 10K or so, the thermistor to the logic control circuit input voltage increases reach a certain value after the 0101 cut-off  blue laser pointer   , the heater stops heating. And so forth to control the heater surface temperature is maintained at the design temperature range. The laser printer has a power-saving features (sleep mode).