| 摘要 |
PURPOSE:To obtain plural sheets of copy images of good quality with simple equipment by using a photoconductive photoreceptor comprising fixing toner in image- form on the photosensitive surface as a master plate and repeating the process of evenly charging and evenly exposing this, developing the toner then transferring the toner image. CONSTITUTION:The latent images having been obtained through exposure of a photoconductive photoreceptor 1 with a desired original are toner-developed and are fixed to form toner images 2 and this is used as a mater plate (Fig. a). Next, the master plate is evenly charged (Fig. b), following to which it is evenly exposed to let the charges of the portions other than the toner 2 disappaer and allow the charges to remain only on the toner 2 portions being non-conductive, thereby forming latent images (Fig. C). After these are developed with copying toner 3, the toner images 3 thus obtained are transferred to image receiving paper (Fig. d). By repeating the processes of the above (b) thru (d), copying of plural sheets is performed. There is a need for performing fixing of the abovementioned toner images 2 so as not to impair the non-image portions of the photoreceptor, for which flush fixing, fixing by toner solvent gas, etc. are desirable.
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