| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 399054000 | Color selection | 16 |
| 20080298829 | IMAGE FORMING APPARATUS - An object of the present invention is to provide an image forming apparatus which can achieve reduction in printing time, suppression of developer consumption, and implementation of silence. An image forming apparatus capable of forming a color image on an image carrier with use of developers of a plurality of different developing colors, including a plurality of developing devices respectively housing the developers of different colors, and a control section for controlling operation of the developing devices based on inputted image data, wherein the control section includes a concentration ratio recognition section for recognizing a concentration ratio of the respective colors for image data of every sheet from the image data, and controls so as to spare at least one color developer among the developers in response to the concentration ratio of respective colors recognized by the concentration ratio recognition section. | 12-04-2008 |
| 20080310870 | Method for Developing Potential Images Which are Produced on an Intermediate Image Carrier of Images Which are to be Printed Having Selectable Customer-Specific Colors in an Electrographic Printing or Copying Device - In a method or system to develop a potential image with selectable customer-specific colors using a developer fluid in an electrographic printing or copying device, a customer-specific color for print job is generated as a developer fluid from primary color concentrates and a carrier fluid in a mixing container of a mixing device. The developer fluid is fed to a developer station to develop the potential images. Given a color change to a new color in a mixing device, color values of a color of a residual developer fluid that remains are measured and via comparison of these color values with color values of the new color it is determined whether the new color can be generated using the residual developer fluid. If this is the case, the residual developer fluid is used to generate the new color. If it is not the case, a fill level in the mixing container is first reduced to a residual quantity at a lower limit of the tolerance range for sufficient inking for a following print job by adding fluid, and this residual quantity is used to generate the new color. | 12-18-2008 |
| 20090129803 | IMAGE FORMING APPARATUS AND METHOD FOR FORMING IMAGES FOR CARRYING OUT DEVELOPMENT USING A LIGHT TONER AND A DARK TONER HAVING SUBSTANTIALLY THE SAME HUE - An image forming apparatus configured to carry out development using a light toner and a dark toner having substantially the same hue, includes a pattern forming unit configured to form a pattern using a dark toner and a light toner, a pattern reading unit configured to read the density of the pattern formed on a sheet of recording paper after the pattern has been fixed, and a gradation correction unit configured to correct the gradation characteristics of image data for the light toner by changing the slope of the gradation characteristics with zero level as a base point. The changing of the slope is based on the density characteristics of the pattern read by the pattern reading unit and the ratio of the amounts of the light toner and the dark toner that have been used. | 05-21-2009 |
| 20090136248 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD THEREOF - A method of forming an image with a plurality of colors of developer, the method including generating color printing data corresponding to colors, sensing remainders of the plurality of colors of developer, converting the color printing data into mono printing data for a reference color corresponding to color density of each color printing data if at least one of colors of developer is insufficient, and printing the mono printing data. | 05-28-2009 |
| 20100046972 | METHOD BY WHICH AN INFINITE NUMBER OF COLORS MAY BE USED WITH A FINITE NUMBER OF CCUs - This is a system for changing a color in a xerographic marking system from an old color to a new color within the same color family. | 02-25-2010 |
| 20100196031 | SMART DEVELOPER CYCLE UP - This invention provides supplying a model that will together with software and a controller, separately selectively cycle up (activate) or cycle down (inactivate) color stations in accordance with their need for a particular imaging run. The cycled down stations are not activated for the imaging run thereby preserving the quality of the developer and toner in that inactivated color station or housing. The model will vary, depending on the machine or desired images. Each model can later be used for machines of the same family. | 08-05-2010 |
| 20100266303 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - According to one embodiment, an image forming apparatus configured to form an image and record the image on a recording material includes a driving unit configured to drive plural color developing devices and a black developing device independent from one another, a toner quantity meter configured to measure toner residual quantities in the developing devices after development processing applied to photoconductive members, a toner supplying unit configured to execute operation for supplying the toners to the respective developing devices according to the measured toner residual quantities, and a controller configured to start, with reference to timing when the toner supply operation is completed last in the plural color developing devices, operation for stopping the plural color developing devices and start, with reference to timing when the black toner supply operation is completed, operation for stopping the black developing device. | 10-21-2010 |
| 20110243591 | IMAGE FORMING APPARATUS - Provided is an image forming apparatus in which one of developing units that respectively contain visible toners of black, yellow, magenta, and cyan other than the developing unit that contains the visible toner of black is replaced by a developing unit that contains a transparent fluorescent toner. Consequently, a document image can be expressed by the visible toner of black and a designated color which falls within a color reproduction range determined by two of the visible toners of yellow, magenta, and cyan, and an additional pattern which is an additional information image for preventing falsification and forgery can be printed on the document image with the use of the transparent fluorescent toner. | 10-06-2011 |
| 20120134696 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus which transfers clear toner and at least one of cyan, magenta, yellow, and black color toner onto a recording medium to form an image based on image information and image classification information, the apparatus including a clear priority determiner configured to determine a clear priority based on the image classification information; a toner adherence amount determiner determining amounts of the color toners and the clear toner to be adhered to the recording medium based on the image information and the clear priority; and a toner transferer transferring the color toners and the clear toner onto the recording medium in amounts determined by the toner adherence amount determiner. | 05-31-2012 |
| 20120237235 | XEROGRAPHIC COLOR IMAGE FORMING MACHINE HAVING MARKING ENGINES WITH BOTH LOW GLOSS AND HIGH GLOSS DEVELOPERS - A color image forming machine is provided having a plurality of xerographic marking engines, each forming associated color separations that are combined to produce a color print image. Each marking engine includes two independently controlled developers using toners of the same color and strength of color but with different fused gloss characteristics, in that one of the toners will produce a print with a comparatively lower gloss and the other will produce a print with a comparatively higher gloss, thereby providing a greater control over the range of the gloss of the output print. | 09-20-2012 |
| 20120288293 | COLOR IMAGE FORMING APPARATUS - A color image forming apparatus includes a supporting member, supporting developing devices, for moving the supporting member sequentially to a developing position; a detector for detecting at a position different from the developing position information relating to a developer remainder in the developing device; deducing means for deducing a developer consumption from image information. As to the developing device for which the detection is effected after the developing operation therefor, determining device determines the remainder from the information detected by the detector. As to the developing device for which the detection is effected before the developing operation therefor, the determining means determines the remainder from the information detected by the detector and the consumption amount deduced by the deducing means. | 11-15-2012 |
| 20140003829 | IMAGE FORMING APPARATUS | 01-02-2014 |
| 20140072319 | IMAGE FORMATION APPARATUS - An image formation apparatus includes: a developer image formation section configured to form plural developer images whose colors are different from each other; a transfer device configured to transfer the plural developer images onto a medium while superimposing the developer images on each other, thereby to form a multi-color developer image on the medium; and a memory configured to store information on priority color settings including plural priority colors and transfer orders of the plural developer images which are predetermined for the respective priority colors. When one of the priority colors is selected, the image formation apparatus transfers the plural developer images sequentially in the transfer order for the priority color setting of the selected priority color. | 03-13-2014 |
| 20140099133 | TONER IMAGE FORMING DEVICE, AND IMAGE FORMING APPARATUS - A toner image forming device includes a first toner image forming section including a charged first image holding member, a first exposing unit that emits light onto the first image holding member to form a latent image thereon, and a first developing unit that develops the latent image by a black toner to form a toner image, a second toner image forming section including a charged second image holding member, a second exposing unit that emits light onto the second image holding member to form a latent image thereon, and a second developing unit that develops the latent image by a toner of color other than black to form a toner image, and a controller that performs control so that the number of toners that the second toner image forming section uses is larger than the number of toners that the first toner image forming section uses. | 04-10-2014 |
| 20150078774 | SYSTEM FOR OPTIMIZING INK USAGE ON A 5 COLORANT CAPABLE PRINTER - A system and method for optimizing toner usage on an output device capable of rendering in five or more colorants includes receiving a print job for rendering a print job. The method includes generating at least one candidate colorant combination using multiple colorants. The method includes determining at least one factor including (i) a toner usage, (ii) a toner cost, and (iii) an accuracy of the at least one candidate colorant combination for rendering a select object of the print job. The method further includes selecting an ideal candidate colorant combination based on a comparison of the at least one factor with one of a second candidate colorant combination and an original CMYK colorant combination. | 03-19-2015 |
| 20160131987 | TONER SET FOR PRINTING SYSTEM AND PRINTING SYSTEM - A toner set is used in a printing system that is capable of recycling a print medium and includes a first image forming portion which forms a toner image on the medium with a decolorable toner which is decolored by being heated at a temperature T | 05-12-2016 |
