MR----Our factory specialised in producing various Mag rollers ,such as for all HP compatible styles: 3906, 7115 ,5949, 2612, 4092, 4096, 6511, 1338, 7516, E-16,and so on. Our monthly productivity capacity of Mag Roller is about 800,000 units. Our MR successfully avoid following problems: period whiteness, white-spot and background, etc. We guarantee two periods of print lifetime. And we can adjust our formulation(to be darker or light) according to the customers different demands.