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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7315719 | Transfer charge device cover in non-image receiving medium area An image forming apparatus may include: a photoreceptor and a corona charging device or bias transfer roller that provides a charge to an image receiving medium. A cover may be disposed over a portion of the corona charging device or the bias transfer roller to shie... | 01/01/2008 |
| 7315712 | Electrophotographic image recording apparatus and method therefore In an electrophotographic image recording apparatus apparatus including a photoconductive image bearing member, a charging apparatus for uniformly charging the image bearing member, an exposure apparatus for effecting an imagewise exposure on a surface of the image ... | 01/01/2008 |
| 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 |
| 7133635 | Fusing unit used with a color laser printer A fusing unit used with a color laser printer includes a pair of rollers which heat and press a sheet of paper, onto which an image is transferred, and fuse the transferred image on the sheet of paper, and plastic mold bearings which rotatably support the rollers to... | 11/07/2006 |
| 6919982 | Optical path deflecting element, optical path deflecting apparatus, image displaying apparatus, optical element and manufacturing method thereof An optical path deflecting element, an optical path deflecting apparatus, an image displaying apparatus, an optical writing apparatus, an optical interconnection apparatus, an optical element, and a fabrication method thereof. The optical path deflecting element inc... | 07/19/2005 |
| 6282392 | Image formation apparatus An image formation apparatus including an electrostatic latent image formation body, a latent image forming unit for forming an electrostatic latent image on the electrostatic latent image formation body, and a belt-shaped image carrier with an inner surf... | 08/28/2001 |
| 6245420 | Transfer belt for use in an electrostatographic duplicator A transfer belt for use on an electrostatographic duplicator. The belt has a body defining an image transfer surface. The body is made up of a rubber composition including a combination of epichlorohydrin-ethyleneoxide copolymer and hydrogenated nitrile r... | 06/12/2001 |
| 5953039 | Photothermographic drum processor using low heat conductivity and low heat capacitance rollers A processor for photothermographic media comprising: a rotatably mounted heated drum; and a plurality of rollers spaced around the periphery of the drum to hold down photothermographic media to the drum over a segment of the circumference thereof, the rol... | 09/14/1999 |
| 5937243 | Image-wise toner layer charging via air breakdown for image development A novel image development method and apparatus are disclosed, whereby image-wise charging of a toner layer is accomplished by induce air breakdown electrical discharge such that free mobile ions are introduced in the vicinity of an electrostatic latent im... | 08/10/1999 |
| 5923928 | Dustless toner image transfer apparatus and method An image forming apparatus including an image carrier, an image data storing device for storing image data, a latent image forming device for forming a first latent image on the image carrier in a state of negative image of said image data and for forming... | 07/13/1999 |
| 5903804 | Printer and/or scanner and/or copier using a field emission array A method, device and system for utilizing a pixelized ungated linear array of field emitters and an integrated electrode-media surface to either detect the presence of charge on the surface in a given two-dimensional pattern, or to deposit charge on the s... | 05/11/1999 |
| 5808648 | Image forming apparatus and image forming method using pyroelectric imaging layer An image forming apparatus forms an electrostatic latent image on a latent image forming body having a dielectric material layer on its surface when a write electrode comes into contact with the dielectric material layer. The image forming apparatus devel... | 09/15/1998 |
| 5790925 | Electrophotographic image forming apparatus with low ozone generation An image forming apparatus of the present invention comprises an image carrying member 2, a photosensitive member 9, a first voltage applying means 13, and an exposure means 5. The image carrying member 2 has an insulating layer 25 formed on a first condu... | 08/04/1998 |
| 5781217 | Device for direct electrostatic printing (DEP) comprising an intermediate image receiving member A device for direct electrostatic printing is provided wherein a flow of toner particles in a electrical field from a toner source to the surface of an intermediate image receiving member is image-wise modulated by a printhead structure with printing aper... | 07/14/1998 |
| 5733235 | Rubber covered roll, rubber composition, and image-forming apparatus A rubber covered roll of a structure that a rubber layer is formed on the surface of a roll-like base is provided. The rubber layer is a layer formed of a vulcanizate of a rubber composition comprising 25-95 wt. % of copolymer rubber (A) obtained by copol... | 03/31/1998 |
| 5646717 | Image forming apparatus having charging member An image forming apparatus includes image forming device for forming an image on a recording material, the image forming device including an image bearing member, a charging member for charging the image bearing member and a voltage source for supplying a... | 07/08/1997 |
| 5621451 | Image forming apparatus An image forming apparatus for performing a recording operation with respect to a recording medium, includes an image forming device for forming an image on a recording medium, a recording medium receiver for receiving the recording medium on which the im... | 04/15/1997 |
| 5594531 | Electrophotographic apparatus employing cylindrical member having space controlling member and press-fitted flange A cylindrical member such as a developing roller or photosensitive drum has a sleeve, a flange at the end portion of the sleeve, and a space-controlling member provided at the end portion of the sleeve. The flange is press-fitted into the end portion of t... | 01/14/1997 |
| 5565974 | Penta-level xerographic unit A penta-level xerographic unit produces five exposure levels on a photoreceptor. The five exposure levels select between a subtractive and an adjacent additive primary color in both the CAD and DAD operational regimes of a xerographic process. Exposure le... | 10/15/1996 |
| 5500727 | Multi-color image formation apparatus and method for preventing the contamination of a recharger and preventing color mixing in an image A multi-color image formation apparatus and method of its use prevent deterioration of stability due to a recharging process in one cycle of multi-color image formation and also effectively avoid color mixing in the toner image previously formed. The mult... | 03/19/1996 |
| 5461463 | Electrophotographic printing machine An electrophotographic printing machine includes a transporting part for transporting a recording medium, and a carriage movable in a first direction transverse to a second direction in which the recording medium is transported. The carriage includes a pr... | 10/24/1995 |
| 5432590 | Image forming apparatus with rotatable member press-contacted to image bearing member An image forming apparatus includes an image bearing member movable along an endless path; a helical gear, adjacent an end of the image bearing member, for transmitting a driving force to the image bearing member; a rotatable member contributable to image... | 07/11/1995 |
| 5247334 | Image formation method and apparatus with preheating and pressure image transfer with liquid toner development An image formation method for forming an image includes the steps of electrostatically transferring a latent electrostatic image formed on a latent-electrostatic-image bearing member to an intermediate transfer medium composed of at least a support, and a... | 09/21/1993 |
| 5216466 | Electrophotographic recording apparatus and system including a dielectric belt and transfer and fixing means In the improved electrophotographic recording apparatus, exposure is performed on a photoreceptor drum 7 in response to a signal from an optical head 13 provided in the vicinity of the drum 7, a thin endless metal belt 4 having a dielectric layer on the o... | 06/01/1993 |
| 4994855 | Electrophotographic image formation apparatus with two bias voltage sources A photoreceptor for an image formation apparatus has a photosensitive layer of a multi-layer structure each having the characteristic of increasing its electrical resistance at a different rate upon expose to light. An image-carrying beam of reflected lig... | 02/19/1991 |
| 4588284 | Control system A control system is provided to automatically alter the control of a machine to respond to a different number of pitches or images that the machine can manage at one time. A flag in memory is monitored and in response to the flag, the machine control is a... | 05/13/1986 |
| 4471694 | Printing process for transferring fixed image from master A printing process comprise formation of fixed toner images on a photoconductive substrate by using an electrophotographic method, selective application of color materials onto the image portions of the fixed toner images, and printing of said color mater... | 09/18/1984 |
| 4413899 | Copying method and apparatus A copying method for producing duplicates of an original of at least two colors by using a composite photosensitive member including more than two photosensitive layers, wherein the photosensitive member is subjected to charging more than twice and expose... | 11/08/1983 |
| 4408864 | Apparatus for inducing an electrostatic image in a conductive member An electrostatic latent image residing on an electrically insulating surface used to induce a similar image on a sectionally conductive member by bringing one surface of the sectionally conductive member into proximity with the latent image while the oppo... | 10/11/1983 |
| 4195927 | Double transfer electrophotography An electrophotographic system employing double image transfer. A photoconductive member is charged and exposed to form a latent electrostatic image, which is then transferred to a drum with a durable dielectric coating. The latent electrostatic image is s... | 04/01/1980 |
| 4105322 | Electrophotographic color process In an electrophotographic process in which an electrostatic latent image formed on the surface of a photosensitive member according to conventional electrophotography is transferred onto a latent image receptor sheet and the transferred latent image conve... | 08/08/1978 |
| 4066352 | Electroconductive elastic spone member and electrostatic image transfer mechanism An electrophotographic copying machine of the image transfer type includes a roller for pressing the copy image receiving substrate into virtual contact with the electrostatic image carrying drum. The roller includes a metal shaft and an outer layer forme... | 01/03/1978 |
| 4057339 | Electrostatic latent image transfer type copying apparatus Apparatus for improving the quality of images obtained in an electrostatic latent image transfer type copier according to which there are provided electrical circuits permitting escape or neutralization of charges which may be produced in copy paper durin... | 11/08/1977 |
| 4018522 | Color electrophotographic copying machine A copy sheet is held between a reciprocally rotatable drum and a holding roller which bears against the drum, and for each reciprocal rotation of the drum, an electrostatic latent image corresponding to one of a plurality of selected color separation imag... | 04/19/1977 |
| 3997262 | Electrophotographic copying apparatus A transfer type electrophotographic copying apparatus with a reciprocating platform to place an original to be copied thereon, which comprises a rotatable photoreceptor drum of a small diameter, and processing devices of small size disposed around the pho... | 12/14/1976 |
| 3936170 | Elastic electroconductive product A product comprising a soft elastic base material and an electroconductive film formed on the base material by applying a coating composition to the base material and fixing the composition by an insolubilizing treatment such as irradiation with light, he... | 02/03/1976 |
