摘要:
A color image forming apparatus having an image retainer, a cleaning device for removing residual toner particles on the image retainer, and a device for releasing the cleaning device from the image retainer, which are integrally constructed as a process unit and can be taken out from an apparatus body. The cleaning device is in pressure contact with the image retainer when the process unit has been taken away. The device for releasing the cleaning device is mounted on the apparatus body.
摘要:
An image-forming apparatus of the electrophotographic type. Color images are made while also enabling formation of a sharp black image formed by utilizing a set of color toner development units, at least one of which is replaceable by a black toner development unit when black toner is required. This results in a simpler, more compact, and effective image-forming apparatus.
摘要:
An apparatus having a plurality of developing devices for forming a multiple toner picture image composed of a plurality of layer toner picture images prepared from developed latent picture images formed on an image retainer by turning the image retainer a plurality of times. In the apparatus, latent reference images of different colors are formed on regions of the image retainer based on reference signals and the plurality of developing devices are used to develop the latent reference images to form a plurality of reference toner images. The data derived from the reference toner images is used to set up the image-forming conditions for forming a latent picture image on a common region of the image retainer, based on picture image signals received by the apparatus, when the toner picture image is formed on the image retainer.This application is a continuation of U.S. Ser. No. 849,709, filed Apr. 9, 1986, now abandoned, which in turn is a division of U.S. Ser. No. 757,519, filed July 19, 1984, now abandoned.
摘要:
A color image processing apparatus including an image-reading device for reading a color image on an original to obtain first color image data, an image memory which stores the first color image data, and a factor memory which stores a predetermined correction factor. A color correction system corrects the first color image data with the correction factor. An image-producing apparatus produces a color copy image on the basis of the corrected first color image data, where the image-reading device reads the color copy image to obtain second color image data. The image-processing apparatus further includes a processing member which performs a comparison between the first color image data stored and changes the correction factor on the basis of the comparison.
摘要:
The object of the present invention is to provide an image forming apparatus capable of enabling high-speed continuous copy of an same single-color image, wherein the apparatus is incorporated with a shift register between an image reader and a laser beam generated for performing imagewise exposure onto a photoreceptor. The shift register has a circulation circuit connecting between an output and an input side thereof. After an image data corresponding to a sheet of original document is inputted into the shift register, the circulation circuit is actuated and circulates the image data, thereby repeatedly outputting the image data to the laser beam generator by the number of required times.
摘要:
Herein disclosed are method of and apparatus for forming a multicolor image by repeating such whole-surface exposure and development of a multicolor image forming photosensitive member (4), which has: a photoconductive layer (1) sandwiched vertically between an insulating layer (2) and a conductive layer (3), at least one of said insulating layer (2) and said conductive layer (3) being light transmissive and being composed of a plurality of kinds of filters, as will produce a potential pattern in a portion of a specific kind one of said filters, after said photosensitive member (4) has been charged and subjected to an image exposure, thus adjusting the light quantity and wavelength distribution of said whole-surface exposure, the developing conditions or the developing electric field.
摘要:
A developing method wherein an oscillating electric field is formed in a development area between an image retainer; and a developer feeding carrier of a composite developer containing a chargeable component, and the oscillating waveform of the oscillating electric field is varied to provide an adjustment of the development performance. Preferably, the oscillating electric field is an alternating electric field. The oscillating waveform is modified by varying the amplitude, bias, selection time for a time-selected waveform transformation, or frequency thereof.
摘要:
A method of reproducing multiplex images wherein an electrostatic image is formed on an image retainer by using a common electrostatic image forming device, the electrostatic image formed on the image retainer is developed, the steps of the above are repeated to superpose a plurality of toner images on the image retainer, and the toner images is transferred on a recording paper by one step. The developings other than the first time developing are carried out in such a manner that the surface of a developer layer on a developer feeding carrier does not contact with the surface of the toner image on the image retainer.
摘要:
A method of reproducing multiplex images wherein an electrostatic image is formed on an image retainer by using a common electrostatic image forming device, the electrostatic image formed on the image retainer is developed, the steps of the above are repeated to superpose a plurality of toner images on the image retainer, and the toner images is transferred on a recording paper by one step. The developings other than the first time developing are carried out in such a manner that the surface of a developer layer on a developer feeding carrier does not contact with the surface of the toner image on the image retainer.
摘要:
A method of reproducing multiplex images wherein an electrostatic image is formed on an image retainer by using a common electrostatic image forming device, the electrostatic image formed on the image retainer is developed, the steps of the above are repeated to superpose a plurality of toner images on the image retainer, and the toner images is transferred on a recording paper by one step. The developings other than the first time developing are carried out in such a manner that the surface of a developer layer on a developer feeding carrier does not contact with the surface of the toner image on the image retainer.