Magnetic roller, MR. It is friction with the powder knife to charge the carbon powder, the machine charges the magnetic roller, friction charged carbon powder is adsorbed on the surface of the magnetic roller.
Magnetic roller is composed of magnetic core, support, conductive wire and magnetic sleeve; The magnetic sleeve is composed of aluminum layer and coating; The coating must have certain electrical conductivity, wear resistance and roughness.
The magnetic roller is one of the components that have the greatest influence on the blackness of the printing quality. The thickness and roughness of the black coating will change with continuous use. After blowing off the carbon powder adsorbed on the magnetic roller, if the black coating on the magnetic roller looks very thin, or even see the color of the aluminum base or the surface looks very bright, then the printing quality of such magnetic roller will be very shallow, and it should be replaced with a new magnetic roller or magnetic roller cover.
TITC here are three material :Original Material Japan’s Material and Chinese Material