Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8095042 | Image forming apparatus and method of controlling same An image forming apparatus includes a plurality of first image carriers on which different color toner images C are respectively formed, a transfer fixing member onto which a multicolor toner image A consisting of the toner images C is transferred, a heater located ... | 01/10/2012 |
| 7751752 | Image forming apparatus An image forming apparatus includes a rotatable brush in contact with an image bearing member at a position downstream of transfer means and upstream of charging means in a rotational direction of the image bearing member. The rotational brush is configured to suppl... | 07/06/2010 |
| 7636532 | Charging device capable of switching and executing charging processing for photosensitive surface of photosensitive member and collection processing for developing agent remaining on the photosensitive surface A charging device that switches and executes a first mode which brings a magnetic brush into contact with a photosensitive member to charge a surface of the photosensitive member and a second mode which collects a two-component developing agent including a toner and... | 12/22/2009 |
| 7349652 | Apparatus and method for cleaning residual toner from drums in image forming apparatus An apparatus and method for cleaning a plurality of drums in an image forming apparatus includes applying a first bias to each of a plurality of disturbing members, each disturbing member associated with a corresponding drum of a plurality of drums. While performing... | 03/25/2008 |
| 7317883 | Color image forming apparatus with at least two stages of image forming units A color image forming apparatus in which a developing portion is provided with a mechanism capable of forming a developing agent image and recovering residual developing agent left remained on an image carrier, and an electrification portion of an image-forming unit... | 01/08/2008 |
| 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 |
| 7231170 | Dual-purpose surface-treating blade assembly A surface-treating apparatus has a dual-purpose surface-treating blade assembly that includes a blade holder for holding and loading a blade member, and a one-piece blade member having a first edge mounted to the blade holder and a second edge for contacting and tre... | 06/12/2007 |
| 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 |
| 7177581 | 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... | 02/13/2007 |
| 7174125 | Image forming apparatus An image forming apparatus of the invention at least includes: a transport control component for controlling a transporting component so that transporting of the continuous paper is stopped when a print job is finished, the continuous paper is back-transported to an... | 02/06/2007 |
| 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 |
| 7130178 | Corona charging device and methods The invention is directed to a corona charging device having a powder feed with an outlet. The device has an internal charging cavity having an inlet and a charged powder outlet. The powder feed outlet is positioned at the internal charging cavity inlet. The device ... | 10/31/2006 |
| 7099600 | Image forming device that performs density detection During a first rotation of a photoconductor, latent electrostatic images for color correction processing patterns are formed on the photoconductor, and the latent electrostatic images are developed into the color correction processing patterns in each of four colors... | 08/29/2006 |
| 7062212 | Cleaning apparatus, image forming apparatus, and process cartridge A cleaning apparatus is disclosed that includes a blade chip having a rubber plate member and a reinforcing plate member that are joined together, a supporting plate supporting the blade chip, and a holder pressing the blade chip against the supporting plate. ... | 06/13/2006 |
| 7054579 | Charging member, process cartridge, and electrophotographic apparatus In a charging member having a support and one or more cover layer(s), the ten-point average surface roughness of the surface of the charging member, the height of a hill of the surface of the charging member, the area at the part of the hill, and the area of a regio... | 05/30/2006 |
| 7015938 | Charging system Light emitted from an entire surface of a light source is passed selectively through a liquid crystal shutter. The shutter can be controlled to open/close on a pixel basis in response to image data and then selectively passed light is converted into light having a s... | 03/21/2006 |
| 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 |
| 6963700 | Image forming apparatus with variable speed charging member An image forming apparatus includes an image bearing member; a charging member, contactable to the image bearing member, for electrically charging the image bearing member at a charging position; developing means for developing an electrostatic image formed on the i... | 11/08/2005 |
| 6957028 | Image forming apparatus having a blade member with a semi-conductive member installed there on The present invention provides an image forming apparatus which is small-sized and is able to keep a longtime and stable cleaning function. The image forming apparatus includes an image carrier; a blade member contacting elastically with the image carrier; a semi-co... | 10/18/2005 |
| 6939651 | Electrophotographic photoconductor, and process cartridge and electrophotographic apparatus using the same An electrophotographic photoconductor comprising at least an electroconductive support and a photoconductive layer which is formed on said electroconductive support, the outermost layer of the photoconductor contains particles comprising a polyorganosiloxane-contain... | 09/06/2005 |
| 6924905 | Composite system capable of selectively realizing print function and read function A composite system including a printer having a carriage capable of interchangeably holding a print cartridge and a reader cartridge, and a host computer to which print software and read software are installed, capable of selectively realizing a print function or a ... | 08/02/2005 |
| 6686114 | Electrophotographic image forming method and apparatus An image forming apparatus including a photoreceptor configured to bear an electrostatic latent image while rotating in a direction, wherein the photoreceptor includes an electroconductive substrate, a photosensitive layer located overlying the substrate,... | 02/03/2004 |
| 6529698 | Image forming apparatus featuring a variable toner return bias applying time An image forming apparatus includes an image bearing member and a charging device for charging the image bearing member. An electrostatic image forming device selectively removes charges on the image bearing member charged by the charging device to form a... | 03/04/2003 |
| 6272301 | Image forming apparatus featuring a rotatable electroconductive foam member An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developing device for developing the electrostatic image on the image bearing member with toner into a toner image; a transfer device for transferring the to... | 08/07/2001 |
| 6215967 | Image forming apparatus with a controlled cleaning operation feature An image forming apparatus includes an image bearing member for bearing a toner image and a transfer device for transferring the toner image from the image bearing member onto a transfer material. A charging member contacts a surface of the image bearing ... | 04/10/2001 |
| 6134405 | Combined charging and cleaning blade A member for use in an electrostatographic printing machine is adapted to transfer a charge from a charging source to a surface adapted to receive a latent image. The member is also adapted to clean at least one of marking particles and contamination from... | 10/17/2000 |
| 6006055 | Image forming apparatus An image forming apparatus includes a movable image bearing member, a charging member, a developer, and an auxiliary member. The charging member contacts the image bearing member to electrically charge the image bearing member. The developer develops, wit... | 12/21/1999 |
| 6002899 | Image conditioning/recharge apparatus for electrostatic printing systems using liquid development A blotter/charging device is provided for simultaneously removing excess liquid carrier from a developed toner image and recharging a photoreceptor in preparation for generating and developing another electrostatic latent image on the photoreceptor. The b... | 12/14/1999 |
| 6002907 | Liquid immersion development machine having a reliable non-sliding transfusing assembly A reliable non-sliding transfusing assembly is provided for receiving liquid toner images from an image bearing member. The transfusing assembly includes a continuous intermediate transfer belt forming a belt loop and having an inner surface and a toner i... | 12/14/1999 |
| 5999773 | Image forming apparatus and cleaning method for contact-charging member An image forming apparatus includes a rotatable image bearing member and a contact-charging member which contacts a surface of the image bearing member. The contact-charging member can charge the image bearing member by applying a predetermined voltage to... | 12/07/1999 |
| 5876890 | Electrophotographic photosensitive member and apparatus and process cartridge provided with the same A surface layer of a photosensitive layer contains a resin comprising a structural unit represented by the following general formula (1), and at least one compound of a triarylamine compound represented by the following general formula (2) and a styryl co... | 03/02/1999 |
| 5805960 | Image forming apparatus which applies oscillating voltage to developer carrying member An image forming apparatus includes an electrostatic image bearing member for bearing an electrostatic image; a developer carrying member for carrying developer containing toner; a voltage source for applying to said developer carrying member, an oscillat... | 09/08/1998 |
| 5752129 | Image forming apparatus having a supplemental heating source An image forming apparatus includes an image illuminating section having an illuminating lamp for projecting an image and a heater-type fixing device. In the image forming apparatus, the image illuminating section and the heater-type fixing device are adj... | 05/12/1998 |
| 5749030 | Cleaning device for electrophotographic processor A cleaning device of an electrophotographic processor having a conductive cleaning blade for performing both charging and cleaning operations. The cleaning device of an electrophotographic processor includes a conductive cleaning blade installed at the cl... | 05/05/1998 |
| 5521687 | Method of removing impurities from a transport member during an electrostatic imaging process An imaging apparatus including a device for transferring a toner image from an image-forming medium to a receiving material including an endless movable intermediate provided with a top layer which, in a first transfer zone, is in contact with the image-f... | 05/28/1996 |
| 5452065 | Combination photoreceptor and fuser roll cleaner with additional oil supply function The invention is directed towards a web cleaning system which is used in a xerographic reproduction machine to simultaneously clean the surface of a photoreceptor and of a fuser roll. The fuser roll is of the type having an elastomer coating requiring app... | 09/19/1995 |
| 5357318 | Color image forming apparatus with interchangeable charging and transferring devices In a color image forming machine including a belt-shaped photoreceptor stretched around a plurality of rollers, and a horizontal portion of the photoreceptor being disposed above and in parallel to face a plurality of developing devices, a charging device... | 10/18/1994 |
| 5155526 | Electrophotographic copying apparatus having axially aligned developing elements A fixing unit and a developing unit are oppositely positioned in alignment in the longitudinal direction of a photoconductor which is flatly stretched on an endless belt. The photoconductor is more flatly stretched between the fixing unit and the developi... | 10/13/1992 |
| 5124757 | Image forming method and apparatus including treatment and collection of residual developer In an apparatus and a method for image forming, in which an electrostatic latent image is formed on a surface of a photoreceptor and the latent image is developed and transferred to a transfer member, developer which remains on the surface of the photorec... | 06/23/1992 |
| 4959688 | Image forming apparatus having charging and discharging means Prior to formation of a latent image on a movable image bearing member, the latent image bearing member is charged to a predetermined potential. Then, the image bearing member is contacted to discharging means, by which the image bearing member id dischar... | 09/25/1990 |
