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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 8036573 | Process cartridge and image forming apparatus including a toner charge control device with an endless belt An image forming apparatus includes an image carrying member, an image writing unit, a development unit, a transfer device, a charging device, and a toner charge control device. The image writing unit forms a latent image on the image carrying member, which is devel... | 10/11/2011 |
| 8027617 | Image forming apparatus In the case where image formation is performed by using a part of a plurality of image forming units, an associated image bearing member of a remaining part of the plurality of image forming units is rotated together with an intermediary transfer member or a recordi... | 09/27/2011 |
| 7945190 | Cleanerless image forming apparatus A cleanerless image forming apparatus removes and collects transfer residual toner for reuse by performing cleaning simultaneously with developing. The image forming apparatus includes first and second toner charging members configured to apply an electrical charge ... | 05/17/2011 |
| 7945191 | Image forming apparatus having external-additive removal unit that includes a conductive blade An image forming apparatus includes: an image holder; a charging unit that charges the image holder; a latent image forming unit; a developing unit that forms a toner image; a transfer unit that transfers the toner image formed on the surface of the image holder ont... | 05/17/2011 |
| 7903998 | Image forming apparatus An image forming apparatus having at least a latent electrostatic image bearing member, and a recharging unit configured to recharge a residual toner remaining on the latent electrostatic image bearing member, wherein after transfer, the residual toner is passed thr... | 03/08/2011 |
| 7796919 | Image forming apparatus capable of preventing worsening of image quality caused by excessively charged developer For an electrostatic latent image formed on an image carrier (31b), besides an operation forming an “image forming electrostatic latent image” used to form the primary image, an operation is executed that forms an “electrostatic latent image for ... | 09/14/2010 |
| 7792462 | Image formation apparatus with toner retention member An image formation apparatus which includes a rotating image-bearing body, a charging section, an exposure section, a developing section, a transfer section, and a residue toner-charging section. The charging section charges the image-bearing body. The exposure sect... | 09/07/2010 |
| 7778573 | Image forming apparatus and process cartridge An image forming apparatus includes an image carrier, a toner image forming unit configured to form a toner image having a predetermined polarity on the image carrier, an intermediate transfer body facing the image carrier, a primary transfer member configured to tr... | 08/17/2010 |
| 7761034 | Image forming apparatus with cleaning means and image forming method using the same An image forming apparatus capable of reducing white streaks in gray images and an image forming method using the same are provided. The image forming apparatus including a charging means, a developing means, a transferring means, and a discharging means which are a... | 07/20/2010 |
| 7756446 | 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... | 07/13/2010 |
| 7684732 | Process unit and image forming apparatus including the same An image forming apparatus includes at least a latent image carrier, a latent image forming mechanism, a developing mechanism and a charger. The latent image carrier bears a latent image. The latent image forming mechanism forms the latent image on the latent image ... | 03/23/2010 |
| 7627269 | Image forming apparatus with charging member cleaning capabilities An image forming apparatus includes an image bearing member; a charging member for contacting a peripheral surface of the image bearing member to electrically charge the peripheral surface; a first developing device for forming a first developed image on the periphe... | 12/01/2009 |
| 7469116 | Image forming apparatus An image forming apparatus includes a rotatable image bearing member; a charging member for electrically charging the image bearing member; developing device means for developing an electrostatic latent image formed on said image bearing member into a toner image an... | 12/23/2008 |
| 7324776 | Image forming apparatus, charge controlling apparatus, and image forming method A color printer including, a conductive brush roller to contact a photosensitive drum at a position downstream of a transferring apparatus and upstream of a charging apparatus, wherein at least part of residual toner is collected after temporarily transferring on th... | 01/29/2008 |
| 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 |
| 7313337 | Method and apparatus for sensing and controlling residual mass on customer images Disclosed is a method and apparatus for sensing residual toner mass after transfer of a xerographic image, to facilitate the identification and characterization of different types of transfer defects. The technique employed utilizes a nominal residual mass signature... | 12/25/2007 |
| 7286788 | Image forming apparatus An image forming apparatus includes a photosensitive drum, a charge roller for charging the photosensitive drum, a developing device for developing an electrostatic latent image formed on the charged photosensitive drum with a developer, a first auxiliary charging b... | 10/23/2007 |
| 7280785 | Image forming apparatus An image forming apparatus provided with a photosensitive member, a charging device for charging the photosensitive member, a developing device for developing an electrostatic image formed on the photosensitive member by a developer, a cleaning blade for removing th... | 10/09/2007 |
| 7236711 | Full-width array sensing of two-dimensional residual mass structure to enable mitigation of specific defects A defect analysis system for a xerographic print engine includes a residual mass sensor that senses the two-dimensional signature structure of residual mass remaining on a photoconductive or other substrate surface after image transfer. Preferably, the sensor is a f... | 06/26/2007 |
| 7218879 | Image forming apparatus controlling polarity of residual toner and process cartridge for use in the same An image forming apparatus includes an image carrier, a charging device configured to uniformly charge a surface of the image carrier with a charging member applied with a bias of a first polarity (e.g. a negative polarity) for charging. A latent image forming devic... | 05/15/2007 |
| 7190919 | Intermediate transfer device and image forming device An intermediate transfer device has: an intermediate transfer belt supported by a plurality of belt supporting mechanisms so as to be able to circulate, and having elasticity at least in a direction of circulating; a first bias applying mechanism applying a first bi... | 03/13/2007 |
| 7174119 | Developing device featuring high viscosity developing agent and superimposed AC and DC bias voltage components A developing device for developing an electrostatic image formed on an image carrier, includes a liquid developing agent, wherein toner particles are dispersed in a liquid solvent, and wherein a viscosity of the liquid developing agent is in a range 100 mPa·s to 10... | 02/06/2007 |
| 7149440 | Image formation apparatus and method for decreasing density unevenness An image formation apparatus includes a development unit using a developer support having a conductive surface layer, and a control unit for causing an idle operation of the developer support to be performed at a predetermined timing in a non-print state. ... | 12/12/2006 |
| 7146123 | Image forming apparatus An image forming apparatus includes an image bearing member, charging device which is in contact with the image bearing member and charges the image bearing member, development device which forms a toner image on the image bearing member and recovers a residual tone... | 12/05/2006 |
| 7139503 | Cleaning apparatus with conductive member A cleaning apparatus includes a brush member to be brought into contact with a member to be cleaned to remove toner particles attached to the member. The brush member includes a conductive material. ... | 11/21/2006 |
| 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 |
| 7110699 | Image forming apparatus and process cartridge for use in the same An image forming apparatus of the present invention includes a sheet affixed at one edge portion and including a flat surface in the other edge portion. The flat surface is formed with a plurality of grooves each extending over the image forming range of a photocond... | 09/19/2006 |
| 7097303 | Polarizing devices and methods of making the same Certain, non-limiting embodiments of the disclosure provide ophthalmic elements and devices comprising an at least partial coating adapted to polarize at least transmitted radiation on at least a portion of at least one exterior surface of an ophthalmic element or s... | 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 |
| 7058338 | Image forming apparatus with reciprocating dispersing feature An image forming apparatus includes a photosensitive drum, a charging roller, a transfer roller, and a toner charging brush, wherein the toner charging brush reciprocates in a longitudinal direction of the photosensitive drum. In the image forming apparatus, when a ... | 06/06/2006 |
| 7050733 | Image forming apparatus including two developer carrying members wherein potential differences between the developer carrying members and a common voltage source differ An image forming apparatus includes a plurality of developing devices each including a developer carrying member for carrying a developer to develop an electrostatic latent image formed on an image bearing member, and a developer regulating member for regulating the... | 05/23/2006 |
| 7031641 | Image-forming apparatus having pre-charge exposure device for image carrier An image-forming apparatus includes a pre-charge exposure device which removes electric charge from a photoconductor drum to increase a potential contrast between the surface of the photoconductor drum and the surface of a charge roller in an upstream region of a ni... | 04/18/2006 |
| 7021541 | Original illuminating apparatus and image reader having the same The invention aims at obtaining an original illuminating apparatus and an image reader having the same with which “the reflection” phenomenon is reduced, and much quantity of light for illumination is obtained in an area to be read of an original to thereby be a... | 04/04/2006 |
| 7006774 | Image forming apparatus, wherein voltages applied to developer regulating members are based on respective voltages applied to developer carrying members An image forming apparatus includes a plurality of developing devices, each of which includes a developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with a developer, and a developer regulating member... | 02/28/2006 |
| 6999690 | Image forming apparatus Provided is an image forming apparatus including a unit for controlling each voltage value of peak-to-peak voltages of DC and AC voltages applied to a charging unit for charging an image bearing member, in which a residual charge eliminating unit conducts charge eli... | 02/14/2006 |
| 6996356 | Image forming apparatus using system for cleaning image bearing member An image forming apparatus includes an image bearing member capable of being rotated, a first charging unit, an electrostatic image forming unit, a developing unit, and a second charging unit. The first charging unit is capable of being rotated in the same direction... | 02/07/2006 |
| 6996355 | Image formation apparatus having charging means and developing agent charging means An image formation apparatus has developing agent charging device situated downstream in the direction of motion of a photosensitive drum from a transfer roller and upstream from a charging roller, for charging residual developing agent remaining on the photosensiti... | 02/07/2006 |
| 6987939 | Image forming apparatus with two cleaning electric fields for transferring developer from a developer charging device onto an image bearing member An image forming apparatus includes an image bearing member; a charging device for electrically charging the image bearing member at a contact position; a transferring device for transferring a developed image on the image bearing member onto a transfer material; an... | 01/17/2006 |
| 6975823 | Image forming apparatus including a precharging device An image forming apparatus includes an image carrier rotatable in a predetermined rotative direction, a charging unit for charging a surface of the image carrier, a precharging device disposed upstream from the charging unit with respect to the predetermined rotativ... | 12/13/2005 |
| 6963707 | Image forming apparatus including first and second auxiliary residual developer charging features An image forming apparatus includes a photosensitive drum, a charge roller for charging the photosensitive drum, a developing device for developing an electrostatic latent image formed on the charged photosensitive drum with a developer, a first auxiliary charging b... | 11/08/2005 |
