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| Number | Title | Issue Date |
| 8185010 | Charging wire cleaning apparatus Cleaning performance of a cleaning pad for cleaning a charging wire is maintained so that the charging voltage of an image carrier by a charging wire is stabilized. A charging wire cleaning apparatus is provided with a cleaning pad for cleaning a charging wire which... | 05/22/2012 |
| 8170440 | Method and apparatus for corotron cleaning management in an image production device A method and apparatus for corotron cleaning management in an image production device is disclosed. The method may include receiving an input from the corotron cleaning counter, determining if the corotron cleaning counter exceeds a predetermined threshold, wherein ... | 05/01/2012 |
| 8160470 | Cleaning roller for cleaning charging roller and image forming apparatus A cleaning roller for cleaning a charging roller in an image forming apparatus is disposed in contact with an outer peripheral surface of a charging roller to remove foreign matters attached to the outer peripheral surface of the charging roller. The cleaning roller... | 04/17/2012 |
| 8145090 | Cleaning device of wire, charging device using the same and image forming apparatus A cleaning device of a wire includes: a first cleaning member that cleans a wire when the first cleaning member comes into contact with the wire; a second cleaning member that wipes off the wire when the second cleaning member comes into contact with the first clean... | 03/27/2012 |
| 8126354 | Charging device, process cartridge, and image forming apparatus A charging device includes a charging roller and a cleaning roller configured to make contact with the charging roller. The cleaning roller is rotated following the charging roller. A dynamic friction coefficient of a surface of the charging roller measured by a Eul... | 02/28/2012 |
| 8116655 | Charge roller cleaning member for use in media processing device A segmented cleaning member for removing particulate from a charge roller of a media processing device. The cleaning member in one embodiment includes a substrate and an open-cell foam cleaning pad disposed onto the substrate. The cleaning pad is segmented by a plur... | 02/14/2012 |
| 8095031 | Charging device with vibrating discharge electrode and image forming apparatus A charging device is provided. A needle-like electrode for charging the surface of a photoreceptor drum is formed with a vibrating portion for vibrating the needle-like electrode by the vibration. The vibrating portion is a piezoelectric bimorph element in which two... | 01/10/2012 |
| 8090289 | Charging device and an image forming apparatus provided with the charging device A charging device has a sheet electrode with triangular pins aligned in a first direction and a cleaner unit for cleaning the sheet electrode while moving in the first direction and in a second direction opposite to the first direction. The cleaner unit has a grindi... | 01/03/2012 |
| 8090288 | Method and apparatus for cleaning an image forming apparatus An image forming apparatus includes a photosensitive member configured to form a toner image thereon, a corona charger located opposite the photosensitive member and including a discharging wire and a grid electrode, a bias applying unit configured to apply a bias t... | 01/03/2012 |
| 8090287 | Charging member cleaning unit, method of producing charging member cleaning unit, charging device, process cartridge and image forming apparatus A charging member cleaning unit, that contacts a charging member that charges the surface of an image holding member provided in an image forming apparatus, and is used for cleaning the surface of that charging member, has an elastic layer, and has an amine content ... | 01/03/2012 |
| 8086132 | Photoconductor unit with charge roll wiper for an image forming device A charge roller wiper for photoconductor unit for forming a toner image in an image forming device. The photoconductor unit comprises a photoconductor drum, a charge roller and a first charge roller wiper. The photoconductor drum receives toner particles for forming... | 12/27/2011 |
| 8064791 | Charging device for electrically charging photosensitive member A charging device includes a rotatable charging member for electrically charging a photosensitive member; and a brush, rotating along a rotational direction of the charging member by contacting the charging member to receive a force, including fibers for cleaning th... | 11/22/2011 |
| 8050590 | Corona device grid cleaner This is a device for cleaning a corona grid used in electrostatic printing or copying machines. This device has a cleaner pad that cleans the outer surface of the grid, that is the surface closest to the photoreceptor surface. This pad is located between the outer s... | 11/01/2011 |
| 8036565 | Image forming apparatus including a mechanism to move a discharge wire cleaning member and a shutter for a corona charger An image forming apparatus is constituted by an image bearing member; a corona charging member including a wire; a heat generating member for generating heat by energization; a shielding member, including the heat generating member, capable of shielding a portion of... | 10/11/2011 |
| 8032050 | Charge assembly and image formation apparatus including the same The charge assembly according to the present invention includes a charge member having a conductive support body on which a resistance adjusting layer and a surface layer covering the resistance adjusting layer are formed, to rotate a surface of the image support bo... | 10/04/2011 |
| 8027611 | Detachable holding portions in an image forming apparatus There is provided an image forming apparatus including: an image carrier carrying an image; a charging roll charging the image carrier; a cleaning member configured to be brought into contact with the charging roll for cleaning the charging roll; a first holding por... | 09/27/2011 |
| 8019249 | Charging device, image forming apparatus and method of charging image carrier of image forming apparatus A charging device includes a first charging member held in contact with an image carrier, a toner image formed thereon, a bias showing a polarity same as that of the charged potential of toner applied thereto, a second charging member arranged downstream relative to... | 09/13/2011 |
| 8000627 | Charging device, process cartridge, image forming apparatus, and toner The present invention provides a charging device which comprises a charging roller (14a) and a cleaning component (14b). The charging roller charges a surface of an image-recording medium (11) with a voltage which is applied from a... | 08/16/2011 |
| 7995947 | Image forming apparatus, and charging device and process cartridge used in the image forming apparatus The invention provides a charging device used in an image forming apparatus such as a copier, a fax machine, a printer or the like, the charging device including: a gold-plated discharge wire for charging an image carrier such as a photoconductive member or the like... | 08/09/2011 |
| 7983587 | Image forming apparatus An image forming apparatus which includes a first image forming portion including a first photosensitive member, a first charging member for electrically charging the first photosensitive member to form an image thereon, and a first cleaning brush for cleaning the f... | 07/19/2011 |
| 7983586 | Automated cleaner for charging There is provided a corona generating device for a printing machine, including a conductor; a frame for supporting the conductor; a cleaning assembly, within the frame, for cleaning the conductor, the cleaning assembly includes a cleaning carriage, a drive system fo... | 07/19/2011 |
| 7949281 | Process cartridge and image forming apparatus for effectively cleaning a charging roller at predetermined intervals An image forming apparatus includes a charging roller that continuously rotates and uniformly charges a photoconductor for forming an electrostatic latent image thereon, a cleaning roller that contacts a peripheral surface of the charging roller and cleans the charg... | 05/24/2011 |
| 7945188 | Image forming apparatus with a cleaning operation to improve image quality An image forming apparatus includes an image bearing member, a charging member, a toner image forming device for forming an image on the image bearing member, and an intermediary transfer member for carrying a toner image. A cleaning member removes toner remaining o... | 05/17/2011 |
| 7933533 | Charging device having charging roller with specific characteristic and image forming apparatus A charging device for charging an image supporting member includes a charging roller for charging the image supporting member; and a cleaning member for cleaning the surface of the charging roller. The charging roller has a surface, and the surface has irregularity ... | 04/26/2011 |
| 7917052 | Charging device and an image forming apparatus provided with the charging device A charging device has a stainless steel sheet electrode for charging an image bearing member, and a cleaner for cleaning the stainless steel sheet electrode. The stainless steel sheet electrode has a thickness within a range from 50 μm to 60 μm and comprises align... | 03/29/2011 |
| 7912399 | Apparatus for charging a photoconductor and cleaning a scorotron grid An apparatus (100) useful in printing for charging a photoconductor and for cleaning a scorotron grid is disclosed. The apparatus can include a scorotron frame (110) and a scorotron charge member (120) coupled to the scorotron frame, where the s... | 03/22/2011 |
| 7899354 | Cleaning device, process cartridge and image formation apparatus The present invention provides a cleaning device including a cleaning member that cleans a surface of a rotating cylindrical element to be cleaned, and whose length in a longitudinal direction is longer than a length of the maximum operating region of the element to... | 03/01/2011 |
| 7894741 | Cleaning device which cleans a contact charging member that is disposed in contact with an image bearing member A cleaning device 70 includes: contact and release system 63 which switches a position of a cleaning roller 62 between a position where the cleaning roller 62 is in contact with a charging roller 61 and a position where the cleanin... | 02/22/2011 |
| 7890016 | Charging apparatus, image forming unit that employs the charging apparatus, and image forming apparatus that employs the image forming unit A charging apparatus includes a charging roller and a cleaning member. The charging roller charges a surface of an image bearing body. The cleaning member extends in a longitudinal direction parallel to the charging roller and that cleans the charging roller. The ch... | 02/15/2011 |
| 7860428 | Detachable holding portions in an image forming apparatus There is provided an image forming apparatus including: an image carrier carrying an image; a charging roll charging the image carrier; a cleaning member configured to be brought into contact with the charging roll for cleaning the charging roll; a first holding por... | 12/28/2010 |
| 7853172 | Image forming device with aggregation-forming unit that removes adherents An image forming device including: an image holding member; a charging member; a latent image-forming unit; a developing unit that develops the electrostatic latent image formed on the image holding member with a developer including a toner and a carrier, the toner ... | 12/14/2010 |
| 7844195 | Cleaning member The present invention provides a cleaning member which can be produced at low cost and which maintains excellent cleaning performance for a long period of time. The cleaning member has a lower layer formed through winding a double-faced tape formed of a sponge membe... | 11/30/2010 |
| 7835662 | Web fed charging roll cleaner An apparatus for applying an electrical charge to a charge retentive surface, wherein a bias charge roll member is situated proximately to a surface to be charged such as, a photoreceptor having a cleaning system which includes a web material in contact with the bia... | 11/16/2010 |
| 7822355 | Method and device to prevent dust agglomeration on corona electrodes The present invention is related to preventing dust agglomeration on a sharp electrode which is used for generating corona. According to certain aspects, the invention includes a dust shroud which decreases or prevents dust accumulation on the sharp electrodes. The ... | 10/26/2010 |
| 7813667 | Web fed charging roll cleaner An apparatus for applying an electrical charge to a charge retentive surface, wherein a bias charge roll member is situated proximately to a surface to be charged such as, a photoreceptor having a cleaning system which includes a web material in contact with the bia... | 10/12/2010 |
| 7809306 | Process cartridge A process cartridge includes a photosensitive member, a charger, a frame and a block member. The charger charges the photosensitive member and includes a charging wire and a grid electrode, which is provided between the charging wire and the photosensitive member, a... | 10/05/2010 |
| 7801461 | Charging member cleaning roller, charging member cleaning roller for charging device, process cartridge and image forming apparatus There is provided a charging member cleaning roller including: a core body; and an elastic layer that is provided on a peripheral surface of the core body and includes a polyurethane foam obtained from at least a polyester polyol, a foam stabilizer, and a catalyst. ... | 09/21/2010 |
| 7796912 | Image forming method and apparatus which uses alternating voltage to form an electric field for moving toner An image forming apparatus includes: an image carrying member having a movable surface; a charging device including a rotatable charging member which is supplied with a voltage including a direct voltage superimposed with an alternating voltage, and which contacts a... | 09/14/2010 |
| 7787799 | Cleaning device and image forming device The present invention provides an image forming device. The image forming device includes a photosensitive body, a charging roller, a cleaning member, and a controller. The charging roller, while rotating in a first direction, charges the photosensitive body for ima... | 08/31/2010 |
| 7773906 | Cleaning roller for a charging roller in an image forming device An image forming device is disclosed which has: an image holding member which rotates; a charging roller press-contacting and being rotated by the image holding member, and charging the image holding member; and a cleaning roller press-contacting and being rotated b... | 08/10/2010 |
