| 摘要 |
A magnetic brush developing unit for an electrophotographic copy-machine of the type having a magnetic applicator which moves toner particles along a path passing adjacent the photoconductive element having the latent electrostatic image to be developed, in which a grid having a fine mesh is interposed in this path for separating clots of toner from the toner particles. The clots entrapped in the mesh are vibrated by the magnetic applicator till they are shattered and pass through the mesh.
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