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| Number | Title | Issue Date |
| 7460798 | Image forming apparatus and method of detecting amount of residual developer An image forming apparatus has a developer container containing a developer and a developer carrying member for carrying the developer and adapted to switch an AC voltage to be applied to the developer carrying member. The apparatus includes a detecting member for d... | 12/02/2008 |
| 7450888 | Image forming apparatus and method of detecting home position error by sensing an indicating unit An image forming apparatus and a method of detecting a home position error are provided. The image forming apparatus includes a plurality of developing units, a cam shaft, and a plurality of cams that are formed on the cam shaft to correspond to the respective devel... | 11/11/2008 |
| 7450894 | Image forming apparatus An image forming apparatus includes first and second toner image forming sections and a transfer unit. The first and second toner image forming sections include first and second image carriers and first and second intermediate transfer members, respectively. The col... | 11/11/2008 |
| 7440711 | Image-forming apparatus having cleaning roller to remove toner from transfer roller that facilitates transferring toner image from image-bearing member to recording material An image-forming apparatus includes an image-bearing member supporting a toner image; a transfer roller that rotates in contact with the image-bearing member so as to transfer the toner image to a recording material; first and second cleaning rollers, each having a ... | 10/21/2008 |
| 7415221 | Modular media registration systems and methods for printing or image-forming apparatus Embodiments herein comprise registrations module(s) positioned between image output terminal(s), feeder module(s), and/or finisher module(s). Each registration module comprises a casing having first mounting points that correspond to second mounting points on an adj... | 08/19/2008 |
| 7412186 | Cleaning system for a charging device in a xerographic printer In a xerographic printing apparatus, a charge device is used to apply a charge to a photoreceptor. The shuttle includes a wiper that cleans a sidewall of the charge device. A tab is disposed adjacent the sidewall to retain toner or dirt accumulated by the scraper. T... | 08/12/2008 |
| 7406282 | Image forming apparatus Disclosed is an image forming apparatus, which comprises an intermediate transfer belt (15), and a plurality of image-forming units (11) to (14) disposed along the intermediate transfer belt (15) and adapted to form toner images of differ... | 07/29/2008 |
| 7395007 | Cartridge for use in an image forming apparatus having an electronic element A cartridge for use in an image forming apparatus comprises a charge roller to which a predetermined voltage is applied; a photosensitive drum charged by the charge roller by rotating in contact with the charge roller; an electronic element for wireless communicatio... | 07/01/2008 |
| 7395020 | Imaging methods, imaging devices, transfer assemblies, and transfer member lubrication assemblies Imaging methods, imaging devices, transfer assemblies, and transfer member lubrication assemblies are described according to some aspects. According to one aspect, an imaging method includes forming a latent image using a first imaging member, using a marking agent,... | 07/01/2008 |
| 7392003 | Belt unit and image forming apparatus that incorporates the belt unit A belt unit includes an endless belt and a cleaning member. The endless belt has a value of ten-point height of roughness Rz not larger than 0.2 μm, a value of shininess not less than 100, a creep not larger than 0.03%. The cleaning member is in contact with said e... | 06/24/2008 |
| 7391993 | Image forming device with interlocked mechanism A toner image formed on a photosensitive drum 12a in an image forming unit 12 is transferred to an intermediate transfer belt 11. The toner image of the intermediate transfer belt is transferred onto recording paper by a transfer roller | 06/24/2008 |
| 7389079 | Image heating apparatus and flexible sleeve used for the same The image heating apparatus includes a flexible sleeve including a stainless base layer; a heater being in contact with an inner circumferential surface of the flexible sleeve; and an elastic roller being in contact with an outer circumferential surface of the flexi... | 06/17/2008 |
| 7383000 | Process cartridge and image forming apparatus When the user inserts an insertion end portion of an image forming unit covered with a protective cover into an attachment opening on an apparatus main unit along with a buffer sheet and a blackout sheet, the insertion end portion of an exterior cover sheet touches ... | 06/03/2008 |
| 7383004 | Image forming apparatus A pulse-like DC voltage is applied from two power sources to transfer residual toner uniformizing means and toner charge amount control means, respectively, to expel transfer residual toner deposited on these means from these means onto a photosensitive drum. In a l... | 06/03/2008 |
| 7346306 | Fixing device built in electrophotographic image forming apparatus, temperature control method for fixing device, and recording medium having embodied thereon computer program for the same A fixing device built in an electrophotographic image forming apparatus and a temperature control method for the fixing device are provided. The fixing device comprises a power supplying unit for supplying power to the fixing device; a control variable determination... | 03/18/2008 |
| 7346296 | Rotating member for generating air current in a developing device and image forming apparatus having the same A developing device of an image forming apparatus has an image carrier rotating in confrontation with a developer conveyer and developing the surface of the image carrier with a developer moved by the developer conveyer. A rotating member is rotatably formed adjacen... | 03/18/2008 |
| 7343128 | Image transfer member, image transfer device and image forming system An image transfer member, an image transfer device and an image forming system employing the image transfer member and device are disclosed. The image transfer member comprises a base layer, and a surface layer formed from a semi-conductive material above the base l... | 03/11/2008 |
| 7336910 | Image forming apparatus with gamma conversion means The invention provides an image forming apparatus and an image forming method, capable of providing an image with little deterioration, even in case the image contrast has to be adjusted not for the purpose of image adjustment, such as for reducing the toner consump... | 02/26/2008 |
| 7336912 | Image forming apparatus equipped with an operation section to input an image forming condition An image forming apparatus includes an image forming section that forms a composite image on a sheet, based on image data and a cut guide; an operation section to input an image forming condition; and a control unit that controls operation of each section of the app... | 02/26/2008 |
| 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 |
| 7330683 | Circumferential speed and developer characteristics A developing device includes a developer bearing body disposed in opposition to a latent image bearing body for bearing a latent image thereon. The developer bearing body develops the latent image using a developer. The developer has a degree of circularity greater ... | 02/12/2008 |
| 7327970 | Process cartridge and image forming device having the same A process cartridge of an image forming device has a photosensitive body unit including a photosensitive body and a photosensitive body driving part. The photosensitive body driving unit has a photosensitive body gear formed on a photosensitive body shaft. An electr... | 02/05/2008 |
| 7321745 | Developer supply roller and developing unit A developer supply device provided is in contact with a developer carrying device. It comprises a surface member having at least one opening elongated in an axial direction of the developer supply device. The number of cellular walls counted in the circumferential d... | 01/22/2008 |
| 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 |
| 7305198 | Printing system A printing system includes a plurality of marking engines for applying images to print media. An output destination is configured for receiving imaged print media from the plurality of marking engines. A print media transport system conveys print media between the m... | 12/04/2007 |
| 7305192 | Cartridge for use in an image forming apparatus having an electronic element A cartridge for use in an image forming apparatus comprises a charge roller to which a predetermined voltage is applied; a photosensitive drum charged by the charge roller by rotating in contact with the charge roller; an electronic element for wireless communicatio... | 12/04/2007 |
| 7292802 | Developing apparatus and assembly method of developing apparatus The blade back seal, which integrally comprises the side portions extending in the vertical direction at the longitudinal end portions of the leaf spring member and the connecting portion for connecting the side portions at the longitudinal center portion of the lea... | 11/06/2007 |
| 7283767 | Image forming apparatus and polishing method for image carrier An image forming apparatus comprises: an image carrier driven into rotation; a charger for electrically charging a surface of the image carrier; a latent image forming unit for forming an electrostatic latent image on the charged image carrier surface; a developing ... | 10/16/2007 |
| 7283777 | System and method for characterizing fuser stripping performance Disclosed herein are several embodiments to facilitate the characterization of fuser stripping performance. Recognizing that the characteristics of a substrate exiting a fusing nip are indicative of the operation of the nip and the stripping operation itself, severa... | 10/16/2007 |
| 7266329 | Toner image carrying member and manufacturing method thereof, and electrophotographic apparatus A toner image carrying member can be rotationally driven, and a plurality of grooves are formed on an outer peripheral surfaces of the toner image carrying member, the plurality of grooves extending along a rotation direction of the toner image carrying member and a... | 09/04/2007 |
| 7263321 | Image forming apparatus with speed detector for detecting rotational speed of a tension roller Disclosed is an image forming apparatus, which comprises an intermediate transfer belt (15), and a plurality of image-forming units (11) to (14) disposed along the intermediate transfer belt (15) and adapted to form toner images of differ... | 08/28/2007 |
| 7260341 | Cleaning patch for an image forming apparatus The present invention discloses a cleaning patch and method thereof for cleaning a residual toner in a developing unit. The cleaning patch is composed of a plurality of cleaning regions. Each cleaning region includes a plurality of cleaning toner point alternately a... | 08/21/2007 |
| 7245857 | Belt driving apparatus A belt driving apparatus for driving a belt has the belt hung around and between rollers, and has a meandering prevention member provided in each end part of each roller to restrict the meandering of the belt in the roller axial direction. A cut is formed to be open... | 07/17/2007 |
| 7239833 | Image forming device and color misregistration correction method for image forming device An image forming device and a color misregistration correction method allow for stable formation of excellent images with little color misregistration. A reference patch image is formed on a reference photosensitive drum 3, and transferred to a transfer belt ... | 07/03/2007 |
| 7236726 | Reusable developer cartridge and image forming apparatus for facilitating the removal of toner during refilling A developer cartridge includes a casing, an agitator, and a developing roller. The casing has a first inner space serving as a developer accommodating chamber that accommodates developer and a second inner space serving as a developing chamber in communication with ... | 06/26/2007 |
| 7233749 | Image forming device for performing calibration by patch pattern An image forming device, has an image carrier on which a latent image is formed, and a development device to which a plurality of development units for containing developer with the same color are detachably installed, and development is performed by attaching the d... | 06/19/2007 |
| 7233752 | Process cartridge and electrophotographic image forming apparatus A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes first and second end covers, first and second bottom-surface portions to be guided by first and second main assembly guide portions, first, second,... | 06/19/2007 |
| 7228082 | Belt fuser having a multi-tap heating element A printing machine adapted to print an image on a plurality of different predefined sized sheets, including: means for selecting a sheet of a predefined size to be imaged; means for recording image; means for developing the image; means for transferring the image on... | 06/05/2007 |
| 7224915 | Image forming apparatus and image forming unit An image forming apparatus comprising: an image forming section and a residual toner amount detection unit. The image forming section includes a photosensitive member, a charging unit, an exposure unit, a developing unit, and a toner storage unit. The residual toner... | 05/29/2007 |
| 7224919 | Scheduling system for placing test patches of various types in a printing apparatus A digital printing apparatus comprises a rotatable image receptor defining a plurality of test zones along a circumference thereof. Test patches on the image receptor are requested for each of a plurality of types of test routines. A table is used for scheduling tes... | 05/29/2007 |
