| Patent Number |
Title Of Patent |
Date Issued |
| 6101286 |
Image processing apparatus and method having improved color-boundary mixing |
August 8, 2000 |
| 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 for |
| 5930570 |
Oriented foamed rotary member, and developing device using same |
July 27, 1999 |
| 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 foam |
| 5873010 |
Image forming apparatus for performing correction control, based on density of toner image |
February 16, 1999 |
| 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 |
| 5689783 |
Elastic blade and developing device using the same |
November 18, 1997 |
| 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:whereE: elastic modulus of the surface resin layer (Kg/cm.sup.2);t: thickness of the surface resin layer (cm). |
| 5678130 |
Developing apparatus including a control function for applied periodic developing bias field |
October 14, 1997 |
| 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 |
| 5666597 |
Image forming apparatus with delayed discharge by discharge means |
September 9, 1997 |
| 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, |
| 5666588 |
Image forming apparatus for performing image density control |
September 9, 1997 |
| 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 |
| 5559591 |
Image forming apparatus with function of requesting exchange of fixing unit |
September 24, 1996 |
| An image forming apparatus including image forming unit for forming an unfixed image on a recording medium, a pair of fixing rotary members for fixing the unfixed image on the recording medium, a cleaning member for cleaning surfaces of the fixing rotary members, the fixing rotary member |
| 5548381 |
Developing apparatus forming alternating electric field between image bearing member and toner c |
August 20, 1996 |
| A developing apparatus includes a toner carrying member, disposed opposite an image bearing member for bearing an electrostatic image, for carrying toner to the image bearing member; an electric field forming device for forming an alternating electric field between the image bearing memb |
| 5543900 |
Image forming apparatus which reduces toner fusion on an image bearing member |
August 6, 1996 |
| An image forming apparatus includes an image bearing member for bearing an image of toner and a charging member contactable to the image bearing member to charge the image bearing member. The charging member is adapted to receive a voltage and the toner has a melt index of not less than |
| 5523829 |
Image forming apparatus having recording material carrying member |
June 4, 1996 |
| An image recording apparatus includes an image bearing member; a recording material carrying member for carrying a recording material to a transfer position for transfer of an image; a moving device for imparting relative movement between the image bearing member and the recording materi |
| 5508796 |
Image forming apparatus with select relation among distances in recording material conveyance pa |
April 16, 1996 |
| The present invention provides an image forming apparatus with an image bearing member capable of rotating while bearing a toner image thereon, a transfer device for transferring the toner image from the image bearing member to a recording material at a transfer position, recording mater |
| 5369478 |
Developing apparatus |
November 29, 1994 |
| A developing apparatus includes a rotatable developer carrying member for carrying one component developer to a developing zone for developing an electrostatic latent image for an image bearing member; a regulating member for regulating a thickness of a layer of the developer to be c |
| 5307127 |
Developing apparatus using one component toner with improved flowability |
April 26, 1994 |
| A developing apparatus includes a developer carrying member for supplying a developer to an image bearing member, wherein the developer is a one component developer, and has a flowability index of 5-30%. A developing bias voltage application device applies a developing bias to the develo |
