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| Number | Title | Issue Date |
| 7929896 | Image forming apparatus with main and auxiliary cleaning device for cleaning an image bearing surface An image forming apparatus includes an image bearing member with an image bearing surface adapted to move in a given direction and carry a toner image thereon. A main cleaning device is opposed to the image bearing surface and electrically removes residual toner rem... | 04/19/2011 |
| 7907883 | Method and apparatus for electrostatic brush cleaning in an image production device A method and apparatus for electrostatic brush cleaning of excess toner particles on a photoreceptor device in an image production device is disclosed. The method may include determining if an image transfer occurred in the image production device, wherein if it is ... | 03/15/2011 |
| 7904012 | Image carrier cleaning device, image carrier cleaning method, and image forming apparatus An image carrier cleaning device includes: a first charging member which charges an image carrier to the same polarity as that of a toner after a transfer operation of a toner image formed by the toner charged to a predetermined polarity and having an external addit... | 03/08/2011 |
| 7885594 | Image forming apparatus with toner removing blade An image forming apparatus has a spacer roller that contacts a photosensitive drum outside a running region of a transfer member. The spacer roller forms a gap between a developing roller and the photosensitive drum. A cleaning device is positioned at downstream sid... | 02/08/2011 |
| 7729653 | Image forming apparatus capable of cleaning a photoreceptor, method for cleaning a photoreceptor, and computer program for causing an image forming apparatus to clean a photoreceptor An image forming apparatus and a method for cleaning a photoreceptor are realized that allow cleaning a surface of the photoreceptor to eliminate foreign substances adhering thereto, without using a special abrasive sheet. A recording sheet is fed and brought into c... | 06/01/2010 |
| 7539451 | Image forming apparatus and toner An image forming apparatus having an image support body configured to support a latent image, a charging member configured to provide a substantially uniform charge to a surface of the image support body and a spacer coupled to the charging member and configured to ... | 05/26/2009 |
| 7418231 | Cleaning blade member A cleaning blade member for use in a cleaning section for removing toner on a toner-deposited body, the cleaning blade member comprising: an edge layer contacting the toner-deposited body; and a back layer provided on a back side of the edge layer, and wherein the e... | 08/26/2008 |
| 7418218 | Conductive backer brush for electrostatic brush cleaning of a belt without a ground layer A transfer cleaning station for an electrostatic marking system is provided. In this station, the upper surface of a movable transfer belt is cleaned by a rotating electrostatic cleaning brush (ESB). To improve cleaning performance and conserve space, a grounded con... | 08/26/2008 |
| 7403729 | Image forming apparatus featuring first and second cleaning members wherein a voltage applied to the second cleaning member is changeable An image forming apparatus including an image bearing member bearing thereon a toner image charged to a predetermined polarity, a transferring device for electrostatically transferring the toner image borne on the image bearing member to a recording material, first ... | 07/22/2008 |
| 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 |
| 7382996 | Method for operating a cleaning station A method for operating a cleaning device having a preclean charging device for improved cleaning latitude on an imageable surface, including: moving imageable surface in a process direction through a cleaning zone, selecting a portion of the imageable surface moving... | 06/03/2008 |
| 7373101 | Method and apparatus for image forming and effectively applying lubricant to an image bearing member A lubricant supplying device including a molded lubricant having a Martens hardness of approximately 40 N/mm2 to approximately 70 N/mm2 measured with a test force of 50 mN and a load-applying period of 30 seconds, a rotative member including a ... | 05/13/2008 |
| 7361876 | Line head and image forming apparatus A line head includes a light-emitting element line in which a plurality of light-emitting elements, each being interposed between one electrode and another electrode, are arranged; and driving circuits that drive the light-emitting elements on the light-emitting ele... | 04/22/2008 |
| 7348701 | Driving unit and image forming apparatus A driving unit including a motor, a support bracket supporting the motor, at least one stud supporting a gear which is rotated with a driving force of the motor, and a heatproof member disposed between a frame fastening the support bracket and the stud, and an image... | 03/25/2008 |
| 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 |
| 7333744 | Image forming apparatus that charges a photosensitive member by superimposing an alternate current bias voltage on a direct current bias voltage as the charge bias voltage A charge apparatus charges by uniformly superimposing an alternate current bias voltage with a fixed frequency over a direct current bias voltage as the charge bias voltage on a photosensitive member. An exposure apparatus exposes the surface of the charged photosen... | 02/19/2008 |
| 7327974 | Electrophotographic toner and image-forming system An electrophotographic toner for visualizing an electrostatic latent image formed by an electrophotographic process, an electrostatic printing process, an electrostatic recording process, etc., which is produced in consideration of the environment and safety. The el... | 02/05/2008 |
| 7319835 | Image forming device having first and second light providing units An image forming device, including a charging unit to electrically charge a surface of an organic photoconductive medium; a light exposure unit to form an electrostatic latent image on the surface of the organic photoconductive medium; a developing unit to develop t... | 01/15/2008 |
| 7315721 | Image forming and fixing apparatus with cooling fan An image forming apparatus comprises an image forming unit for forming a toner image on a sheet, a fixing unit for fixing the toner image transferred on the sheet by heat, a cooling fan for cooling the sheet by supplying air to the sheet fixed by the fixing unit and... | 01/01/2008 |
| 7313347 | Cleaning device, process cartridge, image forming apparatus and toner A cleaning device, a process cartridge, an image forming apparatus, and toner to maintain improved cleaning performance for a long time. The cleaning device includes a cleaning blade, a lubricant applying part, and a toner removing part. The cleaning blade is dispos... | 12/25/2007 |
| 7305207 | Cleaning system A cleaning system includes a rotating member and a cleaning blade which is forced against a curved outer surface of the rotating member to scrape off matter to be removed (toner) which is present along the outer surface of the rotating member. The cleaning blade has... | 12/04/2007 |
| 7295796 | Image forming apparatus having a temporary toner holding device and a toner collecting device A cleaningless image forming apparatus of the present invention uses spherical toner grains on surfaces of which a charge control agent and/or organic fine grains are present, thereby enhancing efficient image transfer. A brush roller collects, among toner grains le... | 11/13/2007 |
| 7277656 | Image forming apparatus having charging device with grid cleaner A grid cleaner 35 is fixed to a fixing holder 41 of an apparatus main body in such a way that a wet sponge 38 faces a grid 33. When a charging device 3 is made to slide in the direction indicated by arrow A, the wet sponge 38 | 10/02/2007 |
| 7277653 | Image forming apparatus with cleaning blade lubrication An image forming apparatus includes a development unit, a transfer member, and a blade member. The development unit develops a latent image on an image bearing member and forms a toner image. The transfer member transfers the toner image on the image bearing member ... | 10/02/2007 |
| 7266323 | Manifold for toner collection and contamination control in xerographic process developer housing An airborne toner collection manifold for an electrostatographic printer for coupling in fluid flow communication with a vacuum source includes an inlet, a collection duct, a first exhaust duct and a second exhaust duct. The inlet defines a gap slot extending longit... | 09/04/2007 |
| 7263308 | Cleaning member, cleaning device, charging device, transfer device, process cartridge, and image forming apparatus A cleaning member includes a contact portion that is in contact with a cleaning target, at least the contact portion is made of melamine resin foam that is obtained by heating and compressing an original form. Because the heated and compressed melamine resin foam is... | 08/28/2007 |
| 7254356 | Image forming apparatus An image forming apparatus includes: a belt member for bearing and moving a toner image; a tension roller for supporting the belt member and imparting tension to the belt member; a transferring device for transferring the toner image borne by the belt member to a re... | 08/07/2007 |
| 7251448 | Cleaning blade control apparatus and method An apparatus includes a xerographic cleaning blade, an actuator member operatively connected to the cleaning blade and movable over a first stroke from a first actuator position to a second actuator position, and a damper operatively connected to the actuator member... | 07/31/2007 |
| 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 |
| 7231163 | Apparatus and method of reducing charge roller contamination The present invention relates generally to image forming equipment, e.g. a laser printer of the type which includes a photoconductive (PC) drum and an associated charge roller. The invention is disclosed in exemplary embodiment as a laser printer incorporating a cle... | 06/12/2007 |
| 7218888 | Image formation apparatus An image formation apparatus includes a cleaning device capable of coming into and out of contact with the front surface of a toner image carrier which rotates with toner images adhering on its front surface, and for removing toners adherent on the front surface of ... | 05/15/2007 |
| 7218886 | Method and kit for removing a residue from an imaging member A method for removing a residue, such as lateral charge migration (LCM) film, from an imaging member includes contacting at least a portion of the imaging member with a wash liquid capable of removing the residue. The wash liquid containing the residue is then remov... | 05/15/2007 |
| 7209698 | Method and apparatus for image forming capable of using minuscule spherical particles of toner, a process cartridge in use for the apparatus and a toner used in the image forming for obtaining an image with a high thin line reproducibility An image forming apparatus includes an image bearing member configured to bear a toner image on a surface thereof. A charging mechanism is configured to uniformly charge the surface of the image bearing member. An intermediate transfer mechanism is configured to tra... | 04/24/2007 |
| 7209699 | Lubricant applying unit, process cartridge, image forming apparatus, and image forming method A lubricant applying unit includes a lubricant composed of metal salt of fatty acid; an applying member that applies the lubricant on a subject under lubricant application; and a spreading member that forms a thin layer of the lubricant applied on the subject. The s... | 04/24/2007 |
| 7190913 | Toner monitoring systems and methods Embodiments herein generally relate to printing systems and methods that use toner and more particularly to a system and method that observes the distribution, for different levels of transfer field, of mass per area of toner remaining on the drum/belt as the drum/b... | 03/13/2007 |
| 7177570 | Measurement of frictional resistance of photoconductor against belt in image forming apparatus, process cartridge, and image forming method An image forming apparatus includes a photoconductor having a surface with a frictional resistance ranging from 45 gram-force to 200 gram-force, a 10-point average roughness RzJIS ranging from 0.1 mm to 1.5 mm or a maximum height Rz of 2.5 mm. Image formation is per... | 02/13/2007 |
| 7142798 | Carrier bead pickoff device A carrier bead pickoff device is provided for removing ferromagnetic carrier beads from a developed image-carrying surface of a moving photoreceptor in an electrostatographic image reproduction machine. The carrier bead pickoff device includes (a) an elongate statio... | 11/28/2006 |
| 7142804 | Toner, toner cartridge that holds the toner therein, and image forming apparatus into which the toner cartridge is attached A toner is used in an image-forming apparatus that incorporates a toner-collecting member. The toner-collecting member collects residual toner on a surface of an image-bearing body. The toner includes a spherical toner having at least a binder resin, and an irregula... | 11/28/2006 |
| 7130564 | Method and apparatus for image forming capable of removing residual toner without using a toner cleaning system, process cartridge for use in the apparatus and toner used for the image forming An image forming apparatus includes an image bearing member configured to form an electrostatic latent image on a surface thereof, and a separating mechanism configured to separate an irregular charge toner from a residual toner remaining on the surface of the image... | 10/31/2006 |
| 7127191 | Cleaning device for collecting toner on a surface of an image forming apparatus A cleaning device is provided with a conductive fur brush kept in contact with a transfer belt, a conductive brush kept in contact with the transfer belt upstream of the fur brush in the feed direction, and a single of constant-current d.c. power supply. The fur bru... | 10/24/2006 |
