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| Number | Title | Issue Date |
| 8103200 | Image forming apparatus An image forming apparatus includes a plurality of image carrier rollers placed on an inner circumferential side of an annular conveying path so as to face the annular conveying path and so as to be juxtaposed in a sheet conveying direction along the annular conveyi... | 01/24/2012 |
| 8081912 | Image forming apparatus with marginless printing mode An image forming apparatus operates in a marginless print mode in which the toner image is formed on a first region on a first image bearing member corresponding to a sheet size and a second region on the first image bearing member outside the first region. Reverse-... | 12/20/2011 |
| 7706731 | Hybrid printing system A hybrid printing system including (a) a machine frame; (b) a multi-color image producing module mounted within the machine frame and including color image output terminals and an endless intermediate transfer member for receiving color images from the color image o... | 04/27/2010 |
| 7613418 | Image forming apparatus An image forming apparatus (10) includes image bearing members (20) having respective peripheral surfaces and arranged sequentially so that toner images of toners having different colors are formed on the peripheral surfaces, respectively, an endless b... | 11/03/2009 |
| 7561839 | Image forming apparatus and image forming method An image forming apparatus according to the present invention includes a first toner-image forming unit that forms a first monochrome toner image, a first intermediate transfer drum onto which the first monochrome toner image is transferred, a first transfer unit th... | 07/14/2009 |
| 7548716 | Color gamut and enhanced transfer using hybrid architecture design A color printing machine with a hybrid development architecture is provided including a photoreceptor, a first and second set of development housings, a biased transfer belt, and a fuser. The first set of development housings are arranged in an image-on-image config... | 06/16/2009 |
| 7463855 | Color image forming apparatus and image forming method A color image forming apparatus includes an image forming section that is configured to adopt an intermediate transfer system for three colors of cyan, magenta and yellow, and a direct transfer system for black. A transfer medium is conveyed to a transfer medium con... | 12/09/2008 |
| 7436417 | Color image forming apparatus, and toner replenishing apparatus The color image forming apparatus comprises a transfer belt device which feeds a transfer member such as a paper and a plurality of image forming units. The image forming units are disposed facing towards the transfer belt device. The transfer belt device, at least ... | 10/14/2008 |
| 7430389 | Image forming apparatus with transparent toner developer An image forming apparatus includes a first image bearing member; a first developing means forming a toner image of transparent toner on an electrostatic latent image formed on the first image bearing member; a second image bearing member having an electrostatic cap... | 09/30/2008 |
| 7423783 | Color image scanning and printing device with efficient conversion of scanned image data into print image data A color image scanning and printing device includes a scanning unit which scans an image of a plural number of pages, a conversion unit performing a conversion process by converting a scanned result scanned by the scanning unit into image data of each of a plurality... | 09/09/2008 |
| RE40435 | Modular copying system using light wave, electric wave, or sonic wave interconnections A modular copying system including combinations of printer, scanner, and system controller modules formed as independent frames. The scanner module includes devices for image reading, first data I/O and first synchronizing signal generation; the printer module inclu... | 07/15/2008 |
| 7386262 | Belt driving control apparatus and image forming apparatus which uses a moving average process and a revolution average process A belt driving control apparatus, the belt driving control apparatus having an endless belt, a driving roller driving the endless belt, a driving motor driving the driving roller, at least one idler roller being dependent on the endless belt, and an encoder attached... | 06/10/2008 |
| 7375853 | Image processing apparatus and method A separating unit determines, for an image data, whether there exists black data, and generates density data from the black data when the black data exists, and generates color data from data other than the black data. A multinarizing unit converts the color data in... | 05/20/2008 |
| 7343125 | Image forming apparatus An image forming apparatus is operable in a first mode where a toner images on one of a plurality of image bearing members are transferred to an intermediate transfer belt; and in a second mode where toner images on the image bearing members are superimposedly trans... | 03/11/2008 |
| 7333758 | Image forming apparatus An image forming apparatus capable of changing over between black printing and color printing with an intermediate transfer belt being brought into contact with and separated from photoconductors by means of a black transfer member and a three-color-integrated color... | 02/19/2008 |
| 7313343 | Image forming apparatus An electrostatic latent image is formed on a rotary image carrier. A developer is provided with at least one developing roller which is separatably abutted on the image carrier at a developing position to supply toner onto the image carrier to make the latent image ... | 12/25/2007 |
| 7302218 | Image forming apparatus with constant conveying velocity An image forming apparatus includes plurality image carriers sequentially arranged, a conveying belt, which conveys a print medium onto which color-separated images formed on the plurality of image carriers are overlapped, and a plurality of image transfer rollers i... | 11/27/2007 |
| 7292812 | Image forming apparatus An image forming apparatus includes at least two image bearing members, a transferring unit that makes a physical contact with both the image bearing members, and a lubricant applying unit that applies lubricant on the surface of the image bearing members. Images ca... | 11/06/2007 |
| 7289757 | Shared high voltage power supply for image transfer in an image forming device An image transfer assembly in a color printer or the like includes four image forming units. Each of the image forming units includes a photoconductive unit and a transfer device. A voltage is applied to the transfer device thereby creating a voltage potential betwe... | 10/30/2007 |
| 7278696 | Inkjet recording apparatus An inkjet recording apparatus ejects ink from recording heads to a recording paper, thereby attaching the ink to the medium for recording. The apparatus includes a carriage driving motor, a transfer motor, a scanner which reciprocates a carriage having the recording... | 10/09/2007 |
| 7280788 | Image forming apparatus and transferring method An image forming apparatus according to the present invention is provided with a plurality of image bearing members, an intermediate transfer member, a plurality of first transfer devices, a second transfer device, and a charge amount adjustment section. The image b... | 10/09/2007 |
| 7277651 | Image forming apparatus and control method with power controlled in accordance with remaining amount of rechargeable battery power There are provided an image forming apparatus which can implement on-demand fusing with quick rise in temperature by using the upper current (power) limit of a commercial power supply more effectively and a control method for the apparatus. This image forming appara... | 10/02/2007 |
| 7274900 | Color image forming apparatus and image forming method A color image forming apparatus includes an image forming section that is configured to adopt an intermediate transfer system for three colors of cyan, magenta and yellow, and a direct transfer system for black. A transfer medium is conveyed to a transfer medium con... | 09/25/2007 |
| 7270923 | Image forming method An image forming method for forming a full color toner image by overlaying four color electrostatic image developing toners of black, yellow, magenta and cyan, wherein at least one of the four color electrostatic image developing toners is a toner containing a large... | 09/18/2007 |
| 7260337 | Image forming apparatus with control of commercial and battery power supplies to fusing device There are provided an image forming apparatus which can implement on-demand fusing with quick rise in temperature by using the upper current (power) limit of a commercial power supply more effectively and a control method for the apparatus. The image forming apparat... | 08/21/2007 |
| 7257341 | Image forming apparatus with power supply control for fusing control circuit There is provided an image forming apparatus which can implement on-demand fusing with quick rise in temperature by using the upper current (power) limit of a commercial power supply more effectively. This image forming apparatus includes a rechargeable battery devi... | 08/14/2007 |
| 7257349 | Image forming apparatus whose image bearing member and developing device are provided in a cartridge dismountably mounted to the apparatus The image forming apparatus includes an image bearing member for forming an electrostatic image, a developing apparatus for developing the electrostatic image on the image bearing member with a developer, a developer container for containing a replenishing developer... | 08/14/2007 |
| 7254353 | Image forming apparatus and method of controlling commercial power supply to fusing means There are provided an image forming apparatus which can implement on-demand fusing with quick rise in temperature by using the upper current (power) limit of a commercial power supply more effectively and a control method for the apparatus. This image forming appara... | 08/07/2007 |
| 7251445 | Image formation device and image forming method using same An image forming apparatus is provided with a latent image carrier for holding an electrostatic latent image, and an intermediate transfer member for temporally holding an image formed by visualizing the electrostatic latent image formed on the latent image carrier.... | 07/31/2007 |
| 7248820 | Color image forming apparatus and a method for operating In order to provide a color image forming apparatus and its control method capable of obtaining high-quality output images without image variations or the like even when the kind of image is changed, there is provided a color image forming apparatus including a plur... | 07/24/2007 |
| 7242895 | Image heating apparatus having a flexible sleeve An object of the present invention is to provide an image heating apparatus having a flexible sleeve of an excellent durability. To this end, an image heating apparatus according to the present invention includes: a flexible sleeve; a driving roller contacting an ex... | 07/10/2007 |
| 7228088 | Color image forming apparatus and color image forming method In an image forming apparatus of the present invention capable of forming a full-color image by superposing a black toner image formed by a black image forming unit using a developing and simultaneous cleaning type developing unit over color toner images obtained by... | 06/05/2007 |
| 7227676 | Optical scanning apparatus To provide an image forming apparatus including a plurality of laser scanning units having deflecting and scanning means which deflect and scan light fluxes emitted from a plurality of light sources, respectively; a plurality of image bearing members on which electr... | 06/05/2007 |
| 7209681 | Electrophotographic apparatus for forming a color image utilizing LED array exposure devices An electrophotographic apparatus includes a plurality of image forming devices, wherein each image forming device includes a developing device having a tip end part and a toner storage part coupled to the tip end part. A thickness of the tip end part is smaller than... | 04/24/2007 |
| 7203452 | Tandem image forming device having a side-by-side arrangement of image forming sections A tandem image forming device for an image forming apparatus of the present invention includes a plurality of image forming means arranged side by side along an intermediate image transfer belt. The image forming means each include a developing device and a cleaning... | 04/10/2007 |
| 7177571 | Image forming apparatus using a belt-like intermediate transfer member An image forming apparatus includes a photoreceptor, a driving unit which rotation-drives the photoreceptor, an exposure unit which forms a latent image by performing image exposure to the photoreceptor, a plurality of development units which develop a plurality of ... | 02/13/2007 |
| 7174124 | Tandem color image forming apparatus with an image transfer belt and backup roller An image forming apparatus of the present invention disclosed is of the type sequentially transferring toner images from a plurality of photoconductive drums to a sheet being conveyed by an image transfer belt or an intermediate image transfer belt one above the oth... | 02/06/2007 |
| 7164873 | Image forming apparatus The present invention provides an image forming apparatus which, when switching operation from color image forming operation to monochromatic image forming operation, forms a monochromatic image on each of a prescribed number of sheets by stopping a part of the func... | 01/16/2007 |
| 7151902 | Toner transfer technique A module, included in an electrophotographic printer, for making toner images by a method in which transfer current for electrostatic transfer of toner images to receiver members is adjusted to compensate for ambient variations of toner charge-to-mass ratio (q/m). A... | 12/19/2006 |
| 7142801 | Image forming apparatus and image forming method An image forming apparatus including: a plurality of image forming units each having at least an electrophotographic photoreceptor, a latent image forming device to form an electrostatic latent image on the electrophotographic photoreceptor, a developing device to d... | 11/28/2006 |
