摘要:
An apparatus identifies the type of a document from color image signals either a color document, a black and white document or a marked document, the marked document having a image processing region designated with a color marker differing in color from possible colors of the document to be read, thereafter applies one of a plurality of processing modes to the color image signals in accordance with the type of the document.
摘要:
The invention provides a method of forming a color image on a recording material by transferring a toner image formed on an image carrying means to the recording material and by fixing the toner image on the recording material. The method further includes adhering a transparent toner layer onto the recording material, and fixing the transparent toner layer together with the toner image on the recording material.
摘要:
In an image-forming system where a photosensitive belt is exposed to and scanned with a laser beam to form an image on the surface of the photosensitive belt, a standard pattern having laser beam-transmitting portions and non-transmitting portions arranged alternately in the direction of main scanning of the laser beam is formed on the photosensitive belt, and light-detecting means is disposed to detect the intensity of the laser beam transmitted through the transmitting portions. Dislocation of the focal point of the laser beam is detected based on the difference of the detected beam intensity between the transmitting portions and the non-transmitting portions, and based on the result of this detection, a collimator lens is moved in the direction of the optical axis to correct the dislocation of the focal point.
摘要:
An image forming apparatus which includes a recording sheet storage unit disposed within a main body and a feeder for feeding recording sheets from the recording sheet storage unit. Further included is a detector which emits a signal beginning an automatic loading of the recording sheet storage unit into the main body after manual placement of the storage unit at a predetermined position, and the unloading of the recording sheet storage device when such is desired. Further included is a second detector which detects the fully loaded position of the recording sheet storage device, as well as a conveyor for conveying the storage device to the fully loaded position when loaded, and removing the storage device therefrom during unloading.
摘要:
A color image forming apparatus in which at least one registration mark is formed on a movable image retainer, and exposed by an exposing device. A position of the registration mark is detected by a detecting device and a signal is generated based on the detected position of the registration mark. An exposing position of the exposing device is corrected by a correcting device in accordance with the signal to form a latent image on the image retainer.
摘要:
The invention provides a sheet feed cassette for holding various sizes of sheets to be fed to an image recording apparatus in a feed direction. The cassette comprises a first casing having a sheet placement area, and a second casing slidably connected to the first casing for expanding the area. The first casing is detachably mounted on the image recording apparatus.
摘要:
The invention provides a color image forming apparatus capable of forming a mono-color image and a multi-color image on a rotatable photoreceptor having a given circumferential length. In the apparatus, there are provided a selection switch for selecting either a mono-color mode for forming a mono-color image or a multi-color mode for forming a multi-color image, and a control circuit responsible to a selection signal of the selection switch so that, when the multi-color made is selected, an image size of a multi-color image is restricted within a maximum size corresponding to the circumferential length of the photoreceptor.
摘要:
A color image recording apparatus capable of detachably accommodating an interchangeable process cartridge incorporating plural kinds of developing devices. A plurality of kinds of interchangeable process cartridges are provided differing in the kind of developing devices incorporated therein, and each of such process cartridges has a predetermined operation mode corresponding to the kind of developing devices incorporated therein. Each of the plural kinds of process cartridges is adapted to be associated with a card-shaped memory storing data representing the predetermined operation mode. In the apparatus is provided an electric connection for forming an electrical circuit between the card-shaped memory associated with the accommodated process cartridge and the control device. The control device receives data from the card-shaped memory through the electric connection, and based thereon performs the predetermined operation mode of the accommodated process cartridge.
摘要:
An image forming method wherein a latent image is formed by subjecting an image retainer having a photoconductive layer to a image exposure, a toner image is formed by developing the latent image with a toner, each the step of forming the latent image and the step of forming the toner image are repeated at least one time, and a plurality of toner images formed on the image retainer to a transfer material. At least one of the toner images is formed with a toner which has a spectral transmissivity as to substantially absorb a visible light but transmit a light having a wavelength of 750 nm or more. The latent image is formed by subjecting the image retainer bearing the toner image to an image exposure with a light containing a wavelength component of 750 nm or more.
摘要:
A color image forming apparatus wherein a latent image is formed on an image retainer based on an image data obtained by processing a color-separated image of a document, and developed by a plurality of developing devices having therein toners each different in color, one of the plural developing devices being selected corresponding to a specific color of the document, and the developing step being repeated plural times, so that a multi-color toner image is formed on the image retainer.