| 摘要 |
Disclosed is a dry magnetic developer consisting essentially of a particulate shaped article of a composition comprising a binder resin medium and a powdery magnetic material dispersed in the binder resin medium, wherein said composition is composed of a non-pulverizing agglomerate of cubic particles, and particles having a number average particle size of 1 to 10 microns, as measured by an electron microscope, are incorporated as the powdery magnetic material. This magnetic developer is excellent in the image sharpness, the resolving power and the half tone-reproducing property, and is especially effective for developing a positively charged latent image which is formed on a p-type photosensitive plate such as a selenium photosensitive plate or a photosensitive plate comprising an organic photoconductor layer. |
