The performance of cell phone jammer has been validated

The performance of cell phone jammer has been validated by the expert
Current research and development work focused on a single frequency, mode stability, and increase the output power and so on. Near-infrared light-emitting diodes are ultra-light-emitting diodes and resonant cavity light emitting diodes. Ultra-light-emitting diode is the best choice FOG light, compared with the general light-emitting diodes can provide higher output power and a relatively narrow emission spectra. At present, 50mA operating current, single-tube study of ultra-radiation output power level of up to 50MW, the narrowest spectral width of 15nm. Resonant cavity light emitting diode is a promising light-emitting diode, the experimental and theoretical high-efficiency than conventional light-emitting diodes 5 to 10 times. Besides, mobile phone jammer is also fit for the lecturing and teaching field.Because of this transfer means insulation with the paper's degree, when the paper damp weather and when the surface of the toner to the paper due to leakage can not be completely and tightly adsorbed on the top, which led to poor print quality. Transfer in two ways, one for the "transfer corona discharge" (wire), the other is "discharge roller" transfer. Both works are the same. Different models, the transfer means different. Early production of laser printers use more transfer corona discharge method. When an image containing toner and drum rotation to the transfer or the transfer roller electrode tangent position, also sent a paper between the two, then added to the pressure on the electrode began to transfer discharge, the print paper into the drum at the same time, due to the underside of the transfer paper the role of high-voltage electric field, the toner on the drum will be attracted to print images on paper, complete the second toner image transfer. The power of torch-like cell phone jammer ranges from tens to hundreds of milliwatts.
Thermal switch inside a closed head and a titanium metal contact and hit stalk. Titanium is a memory metal, manufacture memory temperature of 210 ℃. If the temperature control circuit is out of control, when the heating roller surface temperature exceeds the set temperature of 210 ℃, by shrinking deformation titanium, oppression hit the bar off the normally closed contact, cut off the heater circuit protective role. When the temperature is below 180 ℃, the titanium metal recovery of the original memory state, normally closed contact is closed, the circuit connected. Some printers use fuse protection devices, the principle is similar to fuses. Laser printer cleaning system's main function is to transfer the drum surface is not completely a "residual toner" clean, so that the next print cycle has a clean drum.