Abstract: An output apparatus capable of receiving multi-level dot information of a first recording dot density, generating multi-level dot information of a second recording dot density, and transmitting the thus-generated second dot information in a visible way. The output apparatus comprises: a receiving device capable of receiving multi-level dot information of a first recording dot density; a generating device capable of generating multi-level interpolation dot information by applying a predetermined calculation to the thus-received multi-level dot information; and a dot density conversion device capable of generating multi-level dot information of second higher recording dot density from said interpolation dot information and the received multi-level dot information, whereby high density image data can be generated from low density image data.

Abstract: A color image forming apparatus for forming an image through an electrophotographic process, the apparatus having an electrophotographic photosensitive member; charging device for charging the photosensitive member; exposure device for exposing the photosensitive member to light information to form an electrostatic latent image; a color developing device for developing the electrostatic latent image with color toner; a black developing device for developing the electrostatic latent image with black toner; control device for controlling an image forming operation condition to change an image quality; first integrating device for integrating an amount of color image output; second integrating device for integrating an amount of black image output; wherein the control device is responsive to a predetermined output of the first integrating device and to a predetermined output of the second integrating device which is different from the predetermined output of the first integrating device, and wherein the control

Abstract: It is an object of this invention to provide an image processing apparatus which, when nonmagnetic mono-component development is performed, prevents the formation of white gaps in pattern boundaries between different colors and thereby prevents degradation in the image quality of the formed image. To achieve this object, in one embodiment of the invention, the density value VD(n) of the nth pixel on a certain line is applied to the A input terminal of a selector 207, and the density value VD(n-1) of the (n-1)th pixel is applied to the B input terminal of the selector 207. A subtracter 203 calculates the increase of VD(n) from VD(n-1). If a comparator 204 determines that the increase is a predetermined value C1 or less, a selection signal in the selector 207 is so set that the terminal B (the value of the immediately preceding pixel) is selected.

Abstract: An image recording apparatus for recording image data from an external apparatus is provided, which receives the image data as an image signal from the external apparatus, records the received image signal, and outputs a characteristic signal regarding a recording characteristic of the recording apparatus to the external apparatus.

Abstract: An image forming apparatus includes an image bearing member electrostatic latent image forming device for forming an electrostatic latent image on the image bearing member, the image forming device forming, on the image bearing member, an electrostatic latent image usable for controlling image formation. A developing device is provided for developing an electrostatic latent image on the image bearing member, a density difference detecting device is provided for detecting a density difference in an image for the control developed by the developing device, and a control device is provided for controlling a developing condition of the developing device on the basis of an output of the density difference detecting device.

Abstract: There are disclosed a foamed rotary member having a surface of a foam, and a large number of cells provided in the foam and each having a prolate spheroid shape, wherein the major axis direction of the cell is along the rotation axis direction, and also a developing device using the foamed rotary member as a toner supplying rotary member.

Abstract: A color image forming apparatus having a plurality of developers is disclosed. The apparatus includes a photosensitive drum, a density sensor for detecting a developed control toner image, CPU and RAM. The apparatus performs a first control for image formation based on a density of a control toner image developed by a first developer, a second control for image formation based on a density of a control toner image developed by a second developer, and determining whether the second control is to be performed based on the density of the control toner image developed by the first developer.

Abstract: An image recording apparatus for recording image data from an external apparatus receives the image data as an image signal from the external apparatus, records the received image signal, and outputs a characteristic signal regarding a recording characteristic of the recording apparatus to the external apparatus.

Abstract: This specification discloses a developer regulating member and a developing device provided with this developer regulating member. The developer regulating member is provided with a blade having a rubber base member and thermoplastic resin layers provided on the both surfaces of the rubber base member, and a support member adhesively secured to one surface of the blade.

Abstract: A data processing apparatus includes an image data generating section for generating image data, and an interpolation image data forming section for forming and outputting interpolation image data based on the image data generated by the image data generating section. The interpolation image data forming section includes a memory for storing the image data generated by the image data generating section.

Abstract: A developing apparatus is provided which includes a developing chamber for containing a developer, a developer-carrying member for carrying and conveying the developer to a developing region, and a developer-supplying member abutted rotatably to the developer-carrying member. The developer-supplying member has surface-modifying powder at least at its surface. The powder has substantially no chargeability or a chargeability of a polarity equal to that of the developer and a magnitude in terms of absolute value equal to or smaller than that of the developer. By application of the surface-modifying powder, the developing apparatus can obviate a partial tearing of a surface portion of the developer-supplying member which leads to image defects and an increase in drive torque at the initial drive thereof.

Abstract: An elastic blade is provided with a rubber layer and a surface resin layer provided on the rubber layer, the surface resin layer satisfying the following condition:3.ltoreq.E.times.t.ltoreq.30,whereE: elastic modulus of the surface resin layer (Kg/cm.sup.2);t: thickness of the surface resin layer (cm).

Abstract: A developing apparatus includes a developer carrying member, disposed opposed to an image bearing member, for carrying a developer; a developing bias voltage applying source for applying a developing bias voltage having an oscillating component to the developer carrying member to develop an electrostatic latent image formed on the image bearing member; wherein10.0.ltoreq.T11/(T11+T12).times.100.ltoreq.90.0,where T11 is a time period of a first step in which an electric field is formed in a direction for directing the developer from the developer carrying member toward the image bearing member in one cycle of the oscillating component of the developing bias voltage applied by the developing bias application source, and T12 is a time period of a third step between the first step and a second step in which an electric field is formed in a direction for directing the developer from the image bearing member to the developer carrying member, and T11/(T11+T12) is an inclination of the developing bias voltage.

Abstract: By altering a developing bias, a plurality of patch images are formed on a photoconductor, and a density of each patch image is measured, thereby judging whether or not a target density value is within a range of the plurality of measured density values. If the target density value is outside the range, a developing bias which realizes the target density is obtained by an interpolation, in accordance with two measured density values that are closest to the target density value among a plurality of measured densities, and with a developing bias of two patch images that are related to these two measured density values.

Abstract: An image forming apparatus includes an image bearing member for bearing an image, the image bearing member being rotatable at a first speed and a second speed which is different from the first speed, wherein during image formation on the image bearing member, the first speed is selected, and after completion of image formation on the image bearing member, a speed of rotation of the image bearing member is switchable from the first speed to the second speed; a discharger for electrically discharging the image bearing member at a discharging position, the discharger discharging the image bearing member at least one turn after the trailing edge of the image on the image bearing member passes through the discharging position and before the speed of the image bearing member is switched from the first speed to the second speed.

Abstract: A charging device includes a member to be charged; a charging member for charging the member to be charged, the charging member being contactable to the member to be charged and being supplied with a voltage; and wherein upon switching of the voltage from a DC component mode to a superimposing component mode of a DC component and an oscillation component, the DC component is decreased, and a peak-to-peak voltage of the oscillation component is increased in a period, and wherein the peak-to-peak voltage is changed from a first voltage which is smaller than twice a charge starting voltage of the member to be charged to a second voltage which is twice the charge starting voltage, while the peak-to-peak voltage is increasing.

Abstract: An image forming apparatus includes image bearing member or members for bearing an image; charging member for sequentially charging a surface of the image bearing member or members to form an image thereon; a voltage source for applying an oscillating voltage to the charging member, the oscillating voltage including a first frequency and a second frequency which is different from the first frequency during charging by the charging member.

Abstract: An image forming system for forming an image on a recording sheet, including a rotatable image bearing member, a cleaning member contacting the image bearing member to remove toner remaining on the image bearing member, and charger means contacting the image bearing member and disposed at a downstream side of the cleaning member in a direction of movement of the image bearing member. Lubricant having a low resistance is painted on a contacting portion of the cleaning member between the image bearing member and the cleaning member.

Abstract: An electrophotographic photosensitive member is comprised of a support and a photosensitive layer. The photosensitive layer is of such a nature that it becomes gradually more scrapable from its surface toward its interior.

Abstract: An image forming device suitable for use in a laser beam printer includes an image forming unit for forming an image on a photoconductor, and a reproduction unit for reproducing a high density image and a halftone image on the photoconductor. A detector then detects the density of the high density image and the halftone image formed on the photoconductor. A controller controls an image forming condition of the image forming unit based on a detection result by the detector.