摘要:
An image forming apparatus according to the present invention includes a first toner-image forming unit that forms a first monochrome toner image, a first intermediate transfer drum onto which the first monochrome toner image is transferred, a first transfer unit that transfers the first monochrome toner image from the first intermediate transfer drum onto first recording paper, a second toner-image forming unit that forms a second monochrome toner image substantially simultaneously and in parallel with the formation of the first toner image, a second intermediate transfer drum onto which the second monochrome toner image is transferred, a second transfer unit that transfers the second monochrome toner image from the second intermediate transfer drum onto second recording paper, and a paper feeding unit that feeds the first recording paper and the second recording paper to the first transfer unit and the second transfer unit, respectively, substantially simultaneously and in parallel with each other.
摘要:
An image forming apparatus according to the present invention includes a first toner-image forming unit that forms a first monochrome toner image, a first intermediate transfer drum onto which the first monochrome toner image is transferred, a first transfer unit that transfers the first monochrome toner image from the first intermediate transfer drum onto first recording paper, a second toner-image forming unit that forms a second monochrome toner image substantially simultaneously and in parallel with the formation of the first toner image, a second intermediate transfer drum onto which the second monochrome toner image is transferred, a second transfer unit that transfers the second monochrome toner image from the second intermediate transfer drum onto second recording paper, and a paper feeding unit that feeds the first recording paper and the second recording paper to the first transfer unit and the second transfer unit, respectively, substantially simultaneously and in parallel with each other.
摘要:
In an image forming apparatus according to the present invention, a cleaning device which allows for the repeated use of the photosensitive drum is removed from a space between a transferring device for transferring a visible image to the transfer sheet and a charging device for charging the photosensitive drum. The cleaning device is omitted from the image forming apparatus and a developing device for developing an electrostatic latent image can also serve as the cleaning device. Alternatively, the cleaning device is disposed between the charging device and the developing device.
摘要:
An electrophotographic method according to the present invention forms a color image on a photosensitive drum by repeating a cycle of charging, exposure and development for a plurality of times. The electrophotographic method comprises a step of applying a corona discharge component superposed with an AC voltage shifted to the negative or positive polarity which corresponds to that of the photosensitive drum to the photosensitive drum prior to the second image exposure so as to recharge the photosensitive drum.
摘要:
An electrophotographic device is provided with a photosensitive drum having a plurality of photosensitive layers which are different from one another in spectral sensitivity. First and second uniform exposure devices are adjacent to each other about the photosensitive drum. Each of the first and second uniform exposure devices includes a plurality of single color light sources. The light sources of the first exposure device have a different color than the light sources of the second exposure device. The colors correspond to the spectral sensitivity of each of the photosensitive layers, and are used as the uniform exposure light source for the photosensitive drum.
摘要:
An electrophotographic device is provided with a photosensitive drum having a plurality of photosensitive layers which are different from one another in spectral sensitivity. First and second uniform exposure devices are arranged at different positions about the photosensitive drum. Each of the first and second uniform exposure devices includes a plurality of single color light sources. The light sources of the first exposure device have a different color than the light sources of the second exposure device. The colors correspond to the spectral sensitivity of each of the photosensitive layers, and are used as the uniform exposure light source for the photosensitive drum.