摘要:
Disclosed is an apparatus for forming a color image on a photoreceptor, in which along the rotation direction of the photoreceptor there are provided an imagewise exposure process to form a latent image, a development process including a plurality of developing devices to form a color toner image, each of the plural developing devices having a toner hopper, and a transfer process to transfer the formed color toner image onto a copy paper. The apparatus comprises a housing for including at least the photoreceptor, the plural developing devices and the plural toner hopper as one unit, and a support guide for supporting the housing to be movable in the axial direction of the photoreceptor so that the unit is attached to and detached from the apparatus.
摘要:
A multicolor image forming apparatus wherein a plurality of developing devices for forming a multicolor image are integrally supported by a support member which can be inserted into and withdrawn from an apparatus body, and a plurality of resupply devices for replenishing toner particles are mounted on each of the developing devices. Each of the developing devices and each of the resupply devices corresponding to each of the developing devices are automatically connected to and disconnected from each other, when the support member is inserted into and withdrawn from the apparatus body. The support member further supports an image retainer and if necessary a cleaning member integrally.
摘要:
The invention provides an apparatus for forming a color toner image on a photoreceptor belt. The photoreceptor belt is stretched to form a loop around a plurality of rollers and installed in a cartridge which is made to be detachable from the apparatus. The cartridge is made to additionally house a container for collecting residual toner removed from the photoreceptor belt or a toner supply unit for supplying toner to a plurality of developing devices.
摘要:
A multicolor image forming apparatus having an apparatus body and plural kinds of processing devices such as a photoreceptor, an electric charger for providing electric charge on the photoreceptor, an image exposure device for performing image exposure corresponding to multicolor image information on the charged photoreceptor, a developing device including a plurality of developing sub-devices for developing a latent image formed on the exposed photoreceptor into a toner image, a cleaner for cleaning a toner remaining on the photoreceptor after the toner image has been transferred to a copy paper, a plurality of supply devices for supplying toner to each of the plurality of developing sub-devices, and a color process cartridge for accomodating at least the photoreceptor and the plurality of developing sub-devices among the plural kinds of processing devices.
摘要:
The invention provides a photoreceptor belt for forming a latent image on its imaging surface. The photoreceptor belt is stretched in the form of a loop around a plurality of rollers so as to be rotated for carrying a formed image. Both ends of the photoreceptor belt are bonded in the manner that the leading end in relation to the rotation direction is positioned inside than the trailing end in relation to the form of loop and the inner surface of the trailing end is superimposed on the outer surface of the leading end. Cleaning device for cleaning the imaging surface of the photoreceptor belt is disposed to have a cleaning direction opposite to the rotation direction of the photoreceptor belt. The photoreceptor belt is positioned to stop where the bonded ends of the belt are proximate to the corona charging device. The photoreceptor belt is then positioned to stop where the bonded ends of the belt are proximate to the fixing device when the next image formation is not conducted within a period of time after the previous image formation.
摘要:
A color image forming apparatus having an image retainer, a transfer member and selection device for selecting one of a monochromatic mode for forming a monochromatic toner image on the transfer member and a multicolor mode for forming a multicolor toner image composed of a plurality of monochromatic toner images on the transfer member. The maximum length of the multicolor toner image is limited within a size corresponding to an effective peripheral length of the transfer member when the multicolor mode is selected.
摘要:
The invention provides a color image forming apparatus provided with an image carrying unit including a rotatable photoreceptor, a developing unit including a plurality of developing devices, and a cleaning unit. The apparatus is formed with a lower casing and an upper casing. In the upper casing, the image carrying unit, the developing unit and the cleaning unit are accommodated, in which at least two kinds of the units are incorporated in a cartridge capable of being detachably installed in the upper casing. The upper casing is adapted pivotal between an open position and an operation position around an axis which is disposed parallel to the rotation axis of the photoreceptor. When the upper casing is pivotted to the open position, the developing unit is so disposed that a side of the developing unit facing the photoreceptor becomes higher than other side of the developing unit.
摘要:
A camshell type photoelectric color image printer includes a photoreceptor for holding a latent image on its surface, a charger for charging the surface of the photoreceptor, a laser writer for forming a latent image on the charged surface of the photoreceptor, plural developers for developing the latent image with color toners, a transfer drum for holding a recording sheet on which the developed latent image is transferred, a cleaner for cleaning residual toner on the photoreceptor, and a cartridge which holds the photoreceptor, the developers, the cleaner and the transfer unit. The developers are located under the photoreceptor, and the cartridge is removable from the color image printer. An upper part of the color image printer is movable relative to the main body of the printer. The transfer drum is located at an upper position of the photoreceptor in the printer, so that a recording sheet can be easily removed from the printer when the recording sheet is jammed in a circumferential portion of the transfer drum.
摘要:
A color image forming apparatus for forming a plurality of toner images on a rotating image retainer, wherein the image retainer, a group of developing devices disposed below the image retainer and a cleaning device disposed above the image retainer are integrated to constitute a process unit, toner recovered by the cleaning device is stored in the process unit, and the image retainer can be removed from the process unit.
摘要:
A color image forming apparatus for forming a color image comprising; an image retainer for carrying the color image, a charger for charging a surface of the image retainer, a latent image former for forming a latent image on the charged surface of the image retainer, a multicolor developer for developing the latent image, a black developer for developing the latent image, a transfer sheet conveyer for conveying a transfer sheet and transferring the developed latent image onto the transfer sheet, and a cleaner for cleaning a residual developer on the surface of the image retainer, in which the image retainer, either one of the black developer or the multicolor developer, and the cleaning means are formed as a detachable processing cartridge, and the rest of the black developer or the multicolor developer is detachable to the body of the color image forming apparatus.