| 摘要 |
Development of a latent electrostatic image is effected by vibrating a mass of two-component developer on a support surface to maintain the developer mass in a fluidized state in close proximity to a latent electrostatic image bearing surface whereby toner is attracted to image areas to effect development thereof. The toner is replenished by passing toner from a suitable toner supply, such as a toner powder cloud, through apertures in the supporting surface which are larger than the toner particles and smaller than the carrier particles, whereby an adequate toner supply is maintained in the development zone without recirculating the carrier.
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