Image forming apparatus
A technology for image and concave parts, which is applied in the field of image forming devices, and can solve the problems of the difference between the height of the toner layer and the density of the toner, the reduction of the image density, and the low density of the toner
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Image
Examples
no. 1 example
[0057] figure 1 is a schematic diagram showing the image forming apparatus 100 using the electrophotographic system according to the first embodiment. The image forming apparatus 100 includes an apparatus body 100A. The image forming apparatus 100 forms a high-density thin-layer toner image on the developer carrying member 22 by the developing device 20 based on the latent image pattern formed by the latent image forming member 50 . The toner image is transferred to the transfer member 40 and fixed on the transfer material 60 by the transfer fixing member 70 and the fixing member 71 and the like. Transfer toner residues on the transfer member 40 are cleaned by the cleaning member 41 .
[0058] Figure 2A is a cross-sectional view of the developing device 20 . The developing device 20 includes a developing container 21 , an agitating member 28 , a developer carrying member 22 , a developer supplying member 23 , a regulating member 27 , a toner collecting member 24 and a cl...
no. 2 example
[0164] Figure 23 is a schematic configuration diagram showing an image forming apparatus according to a second embodiment of the present invention. In the first embodiment, the developer carrying member 22 carries a latent image, whereas in the present embodiment, the toner recovery member 24 carries an electrostatic image. Even when the toner recovery member 24 is set to carry an electrostatic image, a toner image corresponding thereto is formed on the developer carrying member 22 . By carrying the latent image with the toner recovery member 24 , the limitation of light transmittance in the uneven structure portion 222 of the developer carrying member 22 is reduced, and the selectivity of material or shape is increased. As an example of the toner recovery member 24, an electrode drum configuration is described, but a latent image may be formed on a photosensitive drum or a photosensitive belt by using a charging device and an exposing device.
[0165] Figure 24A is a sch...
no. 3 example
[0171] Figure 25A is a schematic configuration diagram showing an image forming apparatus according to a third embodiment. In the first and second embodiments, a one-component developer is used, but in this embodiment, a two-component developer in which a non-magnetic toner t is mixed with a magnetic carrier c is used as a developer. By using the two-component developer, the charging performance and transport performance of the toner are improved, and thus more stable image output can be performed. The latent image may be carried by the developer carrying member 22 or the toner recovery member 24 .
[0172] Toner application to the developer carrying member 22 will be described in detail. Instead of the developer supply member 23 that supplies toner to the developer carrying member 22, a two-component developer carrying member 231 serving as a “developer supply member” is arranged. The two-component developer carrying member 231 contains Figure 25A The roller 231a rotate...
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