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| Number | Title | Issue Date |
| 8180256 | Image forming apparatus featuring first and second brushes for charging residual toner An image forming apparatus includes: a photosensitive member; a charging member configured to charge the photosensitive member at a photosensitive member charging position to form an electrostatic image on the photosensitive member; a developing device configured an... | 05/15/2012 |
| 7970320 | Image forming apparatus having charging device using magnetic brush charger An image forming apparatus includes an image bearing member and a charging device configured to charge the image bearing member. The charging device includes a magnetic particle carrier and a magnetic particle regulating member configured to regulate magnetic partic... | 06/28/2011 |
| 7917063 | Charging apparatus and image forming apparatus A charging apparatus for charging a member to be charged by contacting magnetic particles to the member to be charged, includes a magnetic particle carrying member for magnetically carrying the magnetic particles, wherein the magnetic particle carrying member is pro... | 03/29/2011 |
| 7885579 | Charging device, image forming apparatus and charging method There is provided a charging technique in which the generation of ozone is suppressed and charging efficiency can be improved. A charging device includes a contact unit configured to include a magnetic brush coming in contact with a body to be charged, the contact u... | 02/08/2011 |
| 7734222 | Image forming apparatus with flexible tube for cooling air and guide channel for flexible tube An image forming apparatus is provided with a cooling fan for cooling toner boxes within the apparatus. The outlet of the cooling fan and the toner boxes are connected by flexible tubes, respectively. This makes it possible to connect the cooling fan with the toner ... | 06/08/2010 |
| 7734223 | Image forming apparatus and process cartridge employing the same having brush roller charger An image forming apparatus and process cartridge employed in same which, when contact charging processing is implemented employing a brush roller, suppresses the generation of localized excessive discharge and suppresses a state of localized excessive discharge on a... | 06/08/2010 |
| 7627270 | Image forming apparatus that effectively charges a latent image carrier A charging device for applying a voltage to a latent image carrier of an image forming apparatus includes a brush roller, a voltage applying mechanism, and a driving mechanism. The brush roller includes a shaft and a brush. The brush has an oblique brush amount, and... | 12/01/2009 |
| 7480474 | Charging apparatus, process cartridge, and image forming apparatus A charging apparatus for electrically charging a chargeable member while magnetic particles contact to the chargeable member, includes first and second magnetic particle carrying members, the second being downstream of the first with respect to a magnetic particle f... | 01/20/2009 |
| 7395011 | Image forming apparatus with cleaning device for removing remaining toner from outer surface of photosensitive member An image forming apparatus has a charge roller, a charge erasing device and a preliminary voltage-applying member disposed around a rotationally movable photosensitive member. The charge roller subjects a surface of the photosensitive member to a charge process whil... | 07/01/2008 |
| 7335843 | Computer keyboard backlighting Embodiments of a peripheral backlighting system for keyboards are shown and described, which include one or more light-emitting panels exterior to the keyswitches of the keyboard. The panels are preferably electroluminescent material or light-emitting chemical cells... | 02/26/2008 |
| 7305196 | Apparatus for and method of controlling high voltage in image forming apparatus An apparatus for and a method of controlling a high voltage in an image forming apparatus using the high voltage with a high alternating current voltage superimposed on a high direct current voltage. The apparatus includes: a high alternating current voltage output ... | 12/04/2007 |
| 7289753 | Image forming apparatus and charging unit therefor An image forming apparatus includes an image bearing member, and first and second chargers. Each of the chargers includes a magnetic member for generating magnetism, has a holding member for holding magnetic particles by a magnetic force, and charges the image beari... | 10/30/2007 |
| 7269382 | Developing apparatus A developing apparatus including a developer carrying member for carrying a developer for developing an electrostatic image, formed on an image bearing member, with the developer, a developer regulating member for regulating the developer carried on the developer ca... | 09/11/2007 |
| 7248821 | Charging device A charging device includes magnetic particles, a magnetic particle carrying member that magnetically carries the magnetic particles into contact with a member to be charged, and a magnetic particle adjusting unit for adjusting an amount per unit area of magnetic par... | 07/24/2007 |
| 7244485 | Imageable seamed belts having polyamide adhesive between interlocking seaming members A seamed flexible belt having a substrate and a seam having interlocking seam members, wherein the interlocking seam members are held together by an adhesive having polyamide and an optional electrically conductive filler, for use in electrostatographic, contact ele... | 07/17/2007 |
| 7245847 | Cleaning apparatus for a rotatable brush A cleaning apparatus for a rotatable brush that contacts upon or slides along a carrier of electrostatic latent images in order to apply an electric potential to the carrier of the electrostatic latent images, includes, an elastic foam body pressed by the bristles o... | 07/17/2007 |
| 7239831 | Image forming apparatus when a maximum developing bias voltage |V| max and surface potential Vd of a charged image bearing member satisfy: |V| max≦|Vd| An image forming apparatus includes an image bearing member; a charging device for electrically charging the image bearing member; a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on the image bearing member wit... | 07/03/2007 |
| 7233755 | Image forming apparatus An image forming apparatus which reduces abrasion of a photosensitive drum caused by a rotary brush such as an charging brush for electrically charging the surface of a photosensitive drum or a cleaning brush for cleaning the surface of a photosensitive drum. The ro... | 06/19/2007 |
| 7232635 | Image forming method, image forming apparatus, and processing cartridge A method of forming a toner image employing a photoreceptor is described. The photoreceptor comprises a photosensitive layer on a cylindrical conductive substrate, Formula (1) and Formula (2) are held, 0 | 06/19/2007 |
| 7220796 | Conductive elastomer composition, conductive member using conductive elastomer composition, image-forming apparatus having conductive member A conductive elastomer composition includes an ionic-conductive elastomer component, which contains an anion-containing salt having a fluoro group (F—) and a sulfonyl group (—SO2—). The conductive elastomer composition has a volume charge not more t... | 05/22/2007 |
| 7218877 | Charging device, and process cartridge and image forming apparatus including the charging device using the same A charging device including a charging roller having a metal cylinder and an elastic layer located thereon, and a cleaner for cleaning the surface of the charging roller. The cleaner includes a driving shaft and a cleaning roller which is rotatably mounted on the dr... | 05/15/2007 |
| 7193836 | Grounding brush for mitigating electrical current on motor shafts A grounding brush for mitigating static electric charge on a motor shaft includes a plurality of filaments secured to an annular frame around the shaft, with tips of the filaments disposed in a channel defined by the frame. Conductive powder can be provided in the c... | 03/20/2007 |
| 7172846 | Carrier, developer, image forming apparatus and process cartridge A carrier including a manganese ferrite core material having a layer on its surface such that 0.1≦K≦30, where K=(S/M)×100, S and M represent the standard deviation and average of M2/(M1+M2), respectively, M ranging from 0.05 to 0.45, and M | 02/06/2007 |
| 7167665 | Foreign material removing system, method of removing foreign material, printing apparatus and printing method The present removing system has a feature to remove a left-over toner that is accumulated on a brush that touches a left-over toner on a photoreceptor. More specifically, the present removing system is so arranged that an alternating voltage (superimposing voltage) ... | 01/23/2007 |
| 7142796 | Spacer for print cartridge In one embodiment, an article includes a spacer configured to increase a dimension of only a portion of a guide part on a print cartridge when the spacer is fastened to the guide part and a fastener allowing the spacer to be removably fastened to the guide part.... | 11/28/2006 |
| 7130565 | Charging apparatus and image forming apparatus A charging apparatus includes first and second magnetic particle carrying members. The second member is upstream of the first member in a particle feeding direction at a nip between the first member and a member to be charged. The particles are commonly used by the ... | 10/31/2006 |
| 7127184 | Method and device for clearing media jams from an image forming device A method and device for removing media sheet jams within an image forming device. The position of the media sheets is monitored as the media sheets move through the image forming process. The occurrence of a media jam is detected, and the position of each media shee... | 10/24/2006 |
| 7116922 | Charging apparatus A charging apparatus includes a charging section supplied with an AC voltage and for electrically charging a member to be charged; a current measuring section for measuring a current flowing between the charging section and the member to be charged when the AC volta... | 10/03/2006 |
| 7113726 | Charging device, image forming process cartridge, and image forming apparatus including the charging device A charging device includes a charging member which is applied with a voltage including an alternating current voltage superimposed on a direct current voltage to charge an image carrier. An equation of “7≦f/v≦17” is satisfied, where “f” is a frequency (H... | 09/26/2006 |
| 7103303 | Charging apparatus and image forming apparatus A charging apparatus includes a first magnetic particle carrying member for carrying magnetic particles; a second magnetic particle carrying member for carrying the magnetic particles, the second magnetic particle carrying member being disposed downstream of the fir... | 09/05/2006 |
| 7098264 | Conductive elastomer composition, conductive member using conductive elastomer composition, image-forming apparatus having conductive member A conductive elastomer composition includes an ionic-conductive elastomer component, which contains an anion-containing salt having a fluoro group (F—) and a sulfonyl group (—SO2—). The conductive elastomer composition has a volume charge not more t... | 08/29/2006 |
| 7092649 | Charging device and image forming apparatus provided therewith An image forming apparatus has a charging member opposed to an outer circumferential surface of a rotating object to be charged. The image forming apparatus has a voltage applying section for applying a pulsating voltage Vsp between the charging member and the objec... | 08/15/2006 |
| 7092659 | Discharge methods and systems in electrophotography Latent charge images are provided on a photoconductor element having a photoconductive layer with a conductive stripe. This process is performed by charging the photoconductive layer with a charge having a particular vector to form a uniform charge on the photocondu... | 08/15/2006 |
| 7092647 | Image forming apparatus This invention realizes and provides an image forming apparatus in which the presence or absence of a toner remaining in a toner storing portion is judged by a patch detecting method, characterized in that the wrong detection of the judgment of the presence or absen... | 08/15/2006 |
| 7084826 | Low cost inductor devices manufactured from conductive loaded resin-based materials Inductors and inductive devices are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin... | 08/01/2006 |
| 7082277 | Contact charger and image forming apparatus A contact charger for charging a charging target (e.g., a photosensitive member) includes a charging brush to be in contact with the charging target, and auxiliary charging particles to be interposed between the brush and the charging target. The auxiliary charging ... | 07/25/2006 |
| 7062194 | Charging device, and process cartridge and image forming apparatus including the charging device A charging device including a charging roller having a metallic cylinder with an elastic layer disposed thereon, and a cleaner for cleaning the surface of the charging roller. The cleaner includes a driving shaft and a cleaning roller rotatably mounted on the drivin... | 06/13/2006 |
| 7043175 | Image forming method and apparatus In an image forming system, an image-bearing member having a photoconductor layer comprising an Si-based non-single crystal material is charged at a relatively low potential of 250 to 600 volts by a contact charging member in the presence of electroconductive fine p... | 05/09/2006 |
| 7035573 | Developing apparatus having developer carrying screw with a plurality of inclination angles An object of the present invention is to provide a developing apparatus capable of reducing unevenness of density of an image in a longitudinal direction of a photosensitive member. For this purpose, in the present invention, a developing apparatus includes a develo... | 04/25/2006 |
| 7002112 | Heating apparatus for increasing temperature in short period of time with minimum overshoot A heating apparatus includes a heating roller that is heated by heating units, a main power supply that supplies power from an external power supply to the main heating unitl, and an auxiliary power supply that supplies power to the auxiliary heating unit. The auxil... | 02/21/2006 |
