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.
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| Number | Title | Issue Date |
| 8032060 | Power transmitting unit, and developing device and image forming apparatus having the same An image forming apparatus includes a main body in which a photosensitive medium is disposed, and a developing device detachably disposed at the main body to develop electrostatic latent images on the photosensitive medium. The developing device includes a developin... | 10/04/2011 |
| 7945193 | Image forming apparatus and developing apparatus An image forming apparatus includes an image bearing member; a developing device including a developer carrying member for supplying the developer to the image bearing member, a developer feeding member, provided rotatably in a developing container, first and second... | 05/17/2011 |
| 7890026 | Development apparatus and image forming apparatus When dynamic torques are Ts, Ti, and T2, respectively, and rotation angle speeds are Rs, R1, and R2, respectively, at the time of rotations of the developing sleeve 40 and the screws 41 and 42, the mass of the developer hous... | 02/15/2011 |
| 7809310 | Image forming apparatus An image forming apparatus (100) includes a photoreceptor drum (1), a development unit (2), a pressing member (7), and a vibration absorption member (8). The development unit (2) is disposed adjacent to the photoreceptor dru... | 10/05/2010 |
| 7725056 | Triboelectric charging device and field assisted toner transporter A developing device configured to form toner cloud without making toner particles adhere to the electrostatic transport substrate having electrodes. By applying periodical voltages to electrodes, electrically charged toner particles float on the electrostatic transp... | 05/25/2010 |
| 7684737 | Method for forming image and image forming apparatus having a developing agent with a distribution of adhesive force to a surface of an image carrier The developing agent is selected to have a distribution of adhesive force to the surface of an image carrier, which is configured such that the ratio of the developing agent having an adhesive force which is not less than 2.5 times as high as an average value of a d... | 03/23/2010 |
| 7647007 | Imaging cartridge drive with an internal ramp Provided is an improved drive mechanism for an imaging machine. At least one internal ramp radiates from the center of the drive dog whereby a tooth of the imaging machine drive mechanism is centered and directed into the drive dog seat. The leading edge of the driv... | 01/12/2010 |
| 7630669 | Multi-development system print engine A multi-purpose print platform includes a color print engine with color and black toners and a low-cost-per-page print engine having at least two image development systems in which each of the development systems is associated with a different type of black toner an... | 12/08/2009 |
| 7627271 | Image forming apparatus including drive transmission member including gears and shafts An image forming apparatus includes: a photosensitive member; a plurality of development devices attachable to and detachable from a main body of the image forming apparatus, a motor; and a drive transmission member. Each development device includes a development ro... | 12/01/2009 |
| 7610000 | Developing device driver and an image forming apparatus using the same A developing device driver according to the present invention includes a developing roller gear connected to each developing roller to develop an electrostatic latent image formed on a photoconductive medium with developer having predetermined color, a driving sourc... | 10/27/2009 |
| 7460816 | Developing device and image forming apparatus having gears whose relative positions can be determined with precision An image forming apparatus includes a developing cartridge having a developing roller driven by developing roller drive gear, a supply roller driven by a supply roller drive gear, an input gear, a gear holder formed with a developing roller support member, supply ro... | 12/02/2008 |
| 7428396 | Power transmitting device for developing device and image forming apparatus with the same A power restricting device for a developing device of an image forming apparatus and an image forming apparatus with the same are disclosed. The power restricting device for a developing device of an image forming apparatus includes a driving section with at least o... | 09/23/2008 |
| 7426358 | Image forming apparatus and method having a cleanerless image forming unit There is provided an image forming apparatus comprising a developing device containing a toner having an average particle diameter of 2 to 5 μm and a spherical degree of 1 to 1.2, and a transfer member which is pressed against the image carrier by a pressing force ... | 09/16/2008 |
| 7403734 | Developing device, image forming apparatus, image forming system, and method of assembling developer supplying roller A developing device includes a housing, a developer bearing roller, a first seal member, a second seal member, a second seal supporting member, and an urging member. The housing has an opening and is adapted to contain a developer. The developer bearing roller is ar... | 07/22/2008 |
| 7398040 | Developing apparatus, cartridge and image forming apparatus A developing apparatus includes a developer carrying member for carrying a developer thereon and developing an electrostatic image formed on an image bearing member with a developer, a developer layer thickness regulating member provided in contact with the develope... | 07/08/2008 |
| 7395014 | Image forming apparatus An improved image forming apparatus comprises a first developing unit comprising a photosensitive body. Also provided is a second developing unit including a developing roller which is moveably installed so that the developing roller selectively contacts the photose... | 07/01/2008 |
| 7391996 | Image forming apparatus configured so that an angel is formed by straight line connecting a rotation center of a rotary and a drive transmitting position, and a tangent line at a transfer position of an image bearing member The present invention relates to an image forming apparatus comprising: an exposing means and a developing means. The developing means comprises a plurality of developing devices, a rotating member rotatable while supporting the plurality of the developing devices, ... | 06/24/2008 |
| 7386258 | Coupling means for development roller of developing unit and electrophotographic image forming apparatus having the same A developer includes a developer frame in which a developing agent is contained, a development roller that is rotatably disposed inside the developer frame. Coupling means couples the development roller to the developer frame. The coupling means includes a gear memb... | 06/10/2008 |
| 7366449 | Developing unit, process cartridge, and image forming apparatus A developing unit includes a developer container that includes an opening and holds a developer; a first screw that stirs and conveys the developer, and that supplies the developer to a developing roller; a second screw that stirs the first developer, and that conve... | 04/29/2008 |
| 7361400 | Developer carrier, developing device using the developer carrier, and process cartridge using the developer carrier A developer carrier is capable of stably charging a toner over a long term without change in physical surface shape and composition. The developer carrier has at least a substrate and resin coating layer formed on a surface of the substrate. The resin coating layer ... | 04/22/2008 |
| 7359651 | Image forming apparatus The image forming apparatus includes first and second developing apparatuses for developing electrostatic images on first and second image bearing members, a first developer container containing a developer, first supplying device for supplying the developer in the ... | 04/15/2008 |
| 7333753 | Developer housing design with improved sump mass variation latitude A developer system for developing an image in an electrophotographic printing machine, including: a developer housing having a toner sump containing developer material; a magnetic development member rotatably mounted in the housing for transferring toner particles t... | 02/19/2008 |
| 7332256 | Image forming method and image forming apparatus An image forming method includes: forming an electrostatic latent image after charging an organic photoconductor; and developing the electrostatic latent image into a toner image by bringing a developer containing toner and a carrier having a weight average particle... | 02/19/2008 |
| 7330681 | Developing device, image forming apparatus, and image forming system A developing device, an image forming apparatus, and an image forming system with which it is possible to appropriately perform developing operations are achieved. A developing device attachable to and detachable from a body of an image forming apparatus, is provide... | 02/12/2008 |
| 7330683 | Circumferential speed and developer characteristics A developing device includes a developer bearing body disposed in opposition to a latent image bearing body for bearing a latent image thereon. The developer bearing body develops the latent image using a developer. The developer has a degree of circularity greater ... | 02/12/2008 |
| 7310484 | Apparatus for forming visible black and white or color images and invisible images The image forming apparatus of the present invention includes a cyan color image formation unit which uses a cyan color toner to form a cyan color image; a magenta color image formation unit which uses a magenta color toner to form a magenta color image; a yellow co... | 12/18/2007 |
| 7301675 | Glossmark images with clear toner The present invention relates to creating differential gloss images in clear toner by the manipulation of halftones employed prior to the depositing of the clear toner layer upon a substrate. By selectively applying halftones with anisotropic structure characteristi... | 11/27/2007 |
| 7292724 | Image processing apparatus and image processing method The present invention provides an image processing apparatus on which an image forming engine for forming a full-color image by using color materials corresponding to data of color tones on the basis of C (cyan), M (magenta), Y (yellow), and K (black) data is mounte... | 11/06/2007 |
| 7292806 | Image forming apparatus and an image forming method using a plurality of monochromatic developer cartridges Prior to the execution of a printing operation, a print preparatory operation is conducted only on a priority developer cartridge out of the plurality of monochromatic developer cartridges mounted to the developing unit thereby bringing the cartridge into a printabl... | 11/06/2007 |
| 7289750 | Image forming apparatus and an image forming method using a plurality of monochromatic developer cartridges The apparatus is brought into a printable state by selecting one print preparatory process from first and second print preparatory processes and conducting the selected print preparatory process prior to the execution of the printing operation. That is, the printing... | 10/30/2007 |
| 7289751 | High resolution image forming apparatus An image forming apparatus includes a photosensitive body (11) having a charge transport layer (11d) as a surface layer. The charge transport layer (11d) as the surface layer is charged and exposed so that a latent image is formed ... | 10/30/2007 |
| 7272339 | Process cartridge including first and second frames and separating member moving the second frame to a separated position and image forming apparatus detachably mounting the cartridge A process cartridge and an image forming apparatus which can stably keep a developing separated state for a long period by a compact construction, and in which when a separating member has been mounted on the process cartridge, the separating member is supported in ... | 09/18/2007 |
| 7260341 | Cleaning patch for an image forming apparatus The present invention discloses a cleaning patch and method thereof for cleaning a residual toner in a developing unit. The cleaning patch is composed of a plurality of cleaning regions. Each cleaning region includes a plurality of cleaning toner point alternately a... | 08/21/2007 |
| 7248815 | Fitting protecting apparatus of developer cartridge and image forming apparatus having the same A fitting protecting apparatus of a developer cartridge includes a housing storing liquid developer. The housing has at least one connection fitting connected to an outside corresponding connection fitting. A cover part is movably disposed between a first position o... | 07/24/2007 |
| 7248806 | Paddle positioning system The present invention is directed to an article, system and method for determining and/or selecting the location of a toner engaging member in a developing agent device such as a toner cartridge. The article, system and method may be applied to a printing device suc... | 07/24/2007 |
| 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 |
| 7236724 | Method for forming image and image forming apparatus The developing agent is selected to have a distribution of adhesive force to the surface of an image carrier, which is configured such that the ratio of the developing agent having an adhesive force which is not less than 2.5 times as high as an average value of a d... | 06/26/2007 |
| 7233760 | Method and device for doctor blade retention A toner cartridge for an image forming apparatus, the cartridge having: a housing defining a toner reservoir; a developer roller supported by the housing; a doctor blade supported by the housing and positioned adjacent the developer roller; and a retainer connected ... | 06/19/2007 |
| 7224924 | Developing device, image forming apparatus, image forming system, and method of manufacturing developing device A developing device is provided with: a developer containing section that is for containing a developer and that has a predetermined coefficient of thermal expansion; a developing roller for bearing the developer contained in the developer containing section; a roll... | 05/29/2007 |
| 7215903 | Cartridge and method for filling a consumable into the cartridge A cartridge includes a case that accommodates a consumable therein, a land area that protrudes from a surface of the case, and a recess that is formed on a reverse side of the surface at a position corresponding to the land area, a reverse side of a deepest portion ... | 05/08/2007 |
