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| Number | Title | Issue Date |
| 7283775 | Developing device using specific charging unit for charging toner and image forming device adopting the same A developing device prevents deterioration of toner, i.e., prevent the toner from being damaged, or fused onto the blade, to realize a more reliable developing operation. In the developing device, an electron emitting section is provided onto the toner regulation bl... | 10/16/2007 |
| 7162185 | Transmission for image formation apparatus, method of manufacturing the transmission, and image formation apparatus A transmission comprises a rotary shaft; a gear secured to the rotary shaft coaxially; and a regulative member secured to the rotary shaft. This regulative member press-contacts one end of the gear to maintain the gear exactly perpendicular to an axis of the rotary ... | 01/09/2007 |
| 7110701 | Xerographic charging device having two pin arrays In a xerographic printing apparatus, a scorotron places a uniform charge on a photoreceptor for forming electrostatic latent images. Two conductive pin arrays are disposed in a housing defined by sidewalls and a grid adjacent the photoreceptor. For each array, the d... | 09/19/2006 |
| 6462764 | Printhead with redundant electrodes A printhead having a set of redundant rows of electrodes. The set of redundant rows is formed by providing additional rows of a first set of electrodes that repeats the charge-deposition pattern of another electrode in the set. The redundant electrodes ar... | 10/08/2002 |
| 5828930 | Electrostatic recording apparatus and its recording method An electrostatic recording apparatus using an ion flow is constructed by: a recording paper inserting slot into which a recording paper as a recording medium is inserted; a humidistat for reducing a moisture content of the recording paper; a latent image ... | 10/27/1998 |
| 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 |
| 5655184 | Ionographic printing with improved ion source An ionographic printer bar directs a stream of ions from an integral ion source having a planar surface for emitting ions to a charge receptor to create an electrostatic latent image thereon. The ion stream passes through an aperture having associated the... | 08/05/1997 |
| 5602626 | Ionically conductive liquid charging apparatus An apparatus for applying an electrical charge to a charge retentive surface by transporting ions through an ionically conductive liquid and transferring the ions to the member to be charged across the liquid/charge retentive surface interface. The ionica... | 02/11/1997 |
| 5576809 | Charge screening member for a corona discharge device of an image forming apparatus An image forming apparatus comprises a rotatable image carrying member, a charger, a scanner unit for forming a latent image at an exposure position on the surface of the image carrying member charged by the charger, a developing device for converting the... | 11/19/1996 |
| 5561505 | Mechanically sealable liquid charging apparatus An apparatus for applying an electrical charge to a charge retentive surface by transporting ions through an ionically conductive liquid and transferring the ions to the member to be charged across the liquid/charge retentive surface interface. The ionica... | 10/01/1996 |
| 4794423 | Printing or copying apparatus A printing or copying apparatus including a rotatable member, a number of processing devices for forming an electrostatic latent image on the rotatable member, for developing the latent image and for transferring the developed image from the rotatable mem... | 12/27/1988 |
| 4608328 | Donor for touchdown development An electrostatographic method and apparatus for developing an electrostatic latent image on an imaging surface, comprises a charging doner member which is preferably a rotatably mounted roll closely spaced from the imaging surface at one portion and havin... | 08/26/1986 |
| 4593994 | Ion flow modulator An ion flow modulator with high reliability used in a photocopying machine to obtain a high quality image. The ion flow modulator includes an insulating substrate, a common electrode formed on one major surface of the insulating substrate, a plurality of ... | 06/10/1986 |
| 4556013 | Screened donor for touchdown development A touchdown development system includes a donor roll for positioning adjacent a photosensitive member in order to develop an image on the surface of the photosensitive member. A "C-shell" toner housing is positioned around the donor roll to extend from th... | 12/03/1985 |
| 4442190 | Method and apparatus for image formation utilizing a blocking member for blocking an ion flow through a photosensitive screen to provide a non-image area An image forming technique employing a screen photosensitive medium having therein a plurality of fine openings. Using such screen photosensitive medium an electrostatic latent image is formed on an electric charge retainable member to be modulated under ... | 04/10/1984 |
| 4435066 | Ion modulating electrode with improved transmission factor An electrostatic reproducing apparatus, in which the ion flow passing through an ion modulating electrode and reaching a reproducing member is increased by strengthening the electric field between the electrode of the ion modulating electrode and the repr... | 03/06/1984 |
| 4425035 | Image reproducing apparatus An image reproducing apparatus includes an ion modulating electrode and a device for imparting oscillation thereto. The ion modulating electrode is formed of a continuous layer of conductive material, a segmented layer of conductive material, an insulatin... | 01/10/1984 |
| 4394427 | Electrophotographic sensitizing screen with peripherally clogged apertures An electrophotographic sensitizing screen having a great number of apertures, wherein at least an insulating layer and a conductive layer are successively formed on a conductive mesh, is disclosed. These apertures are regularly arranged at such an angle a... | 07/19/1983 |
| 4386837 | Corona discharging device A corona discharging device in an electrophotographic apparatus used for discharging or uniformly charging the surface of a latent image bearing member. This discharging device has corona wires to which a voltage of a predetermined polarity is applied and... | 06/07/1983 |
| 4349268 | Electrostatic image-forming process and an apparatus therefor A method of forming an electrostatic image of an original having both black and color portions includes selective elimination of the black portion to produce individual color electrostatic images which can be separately developed with respect to another i... | 09/14/1982 |
| 4340296 | Electrophotographic apparatus An electrophotographic process of this invention is achieved by subjecting a photosensitive screen to a matched performance of voltage applications and image irradiation to form a primary electrostatic latent image for modulating the flow of corona ions t... | 07/20/1982 |
| 4325625 | Electrophotographing method An electrophotographing method for use in a copying apparatus employing a sensitizing screen having a great number of fine apertures, made in a drum shape, and a transferring means having a conductive base plate and a charge storage layer formed on the ba... | 04/20/1982 |
| 4318002 | Method of charging a multilayered apertured element in an electrostatic imaging process The invention basically comprises systems and methods relating to the field of electrostatics and is concerned with multicolor electrostatic reproduction, printing or constituting on coated and uncoated print receiving media with multilayer apertured elem... | 03/02/1982 |
| 4308331 | Screen photosensitive member and electrophotographic method The invention concerns a screen photosensitive member, and an electrophotographic method using such screen photosensitive member, and relates to improvement in the screen constructed with an electrically conductive member, a photoconductive layer provided... | 12/29/1981 |
| 4293213 | Bias voltage adjusting means for electrophotographic apparatus An electrographic apparatus comprising a photosensitive screen composed of an insulating layer, two electrically conductive layers coated on opposite sides of the insulating layer and a photosensitive layer coated on one of said electrically conductive la... | 10/06/1981 |
| 4289837 | Development method and apparatus In the development of nonuniform latent images on an imaging member, wherein xerographic polar or polarizable toner particles are employed, it is desirable to utilize a development system that will bring the polar or polarizable toner into contact with th... | 09/15/1981 |
| 4287278 | Two superimposed ion current formed images using photoconductive screen gives wider potential range for gradation control in electrophotography A method for forming an electrostatic latent image on an image recording medium includes forming a primary electrostatic latent image on a screen-type photosensitive plate, forming a secondary electrostatic latent image on the image recording material by ... | 09/01/1981 |
| 4284697 | Image formation method In an image formation method of forming an image by modulating an ion flow or charged particles with the aid of a screen having a number of fine passage openings, at least one of the screen and an image reception member is of arcuate cross-section at the ... | 08/18/1981 |
| 4279980 | Electrophotographic sensitizing screen An electrophotographic sensitizing screen having a great number of apertures, wherein at least an insulating layer and a conductive layer are successively formed on a conductive mesh, is disclosed. These apertures are regularly arranged at such an angle a... | 07/21/1981 |
| 4277550 | Photosensitive screen for electrographic apparatus A photosensitive screen for an electrographic apparatus adapted to modulate a flow of corona ions by an electrostatic latent image produced thereon is disclosed. The photosensitive screen is composed of an electrically conductive mesh which is coated on o... | 07/07/1981 |
| 4272597 | Electrophotographic sensitizing screen An electrophotographic sensitizing screen having a great number of apertures, wherein at least an insulating layer and a conductive layer are successively formed on a conductive mesh, is disclosed. These apertures are regularly arranged at such an angle a... | 06/09/1981 |
| 4265531 | Electrophotography Disclosed is a method for protecting a primary electrostatic latent image formed on a screen type photosensitive member. In the step for modulating ion streams or toner particle streams by the primary electrostatic latent image, due to a bias voltage impr... | 05/05/1981 |
| 4265996 | Method of improving the electrical contact between the insulating image carrier and conductive support in electrographic recording processes For improving the electrical contact between an insulating image carrier and a conductive support during development of an electrostatic charge image in electrographic recording processes a gas permeable support is used through which gas ions are brought ... | 05/05/1981 |
| 4264184 | Ozone removing device for electrographic apparatus An ozone removing device for electrographic apparatus comprising a photosensitive screen and a corona discharge device for producing a harmful ozone is disclosed. The device comprises a casing substantially hermetically surrounding said photosensitive scr... | 04/28/1981 |
| 4255043 | Electrostatic recording method and apparatus by doubly controlling ion flow After uniformly charging one insulator side of an insulator mesh the other side of which is subjected to electroconductive treatment, the ion flow controlled by recording signals is irradiated for a short period of time on the insulator mesh to obtain a c... | 03/10/1981 |
| 4248951 | Method of image formation with a screen element and charging means In a method of image formation, a primary electrostatic latent image is formed on a screen having a number of fine openings, the primary electrostatic latent image is used to modulate a flow of ions to thereby form a secondary electrostatic latent image o... | 02/03/1981 |
| 4230786 | Electrographic process of imaging by modulation of ions An electrographic process of producing, on a dielectric coated record medium, an electrostatic copy latent image by modulating a flow of corona ions with the aid of an electrostatic latent image which has been produced on a photoconductive photosensitive ... | 10/28/1980 |
| 4218124 | Photo-sensitive screen for producing electrostatic latent image A photo-sensitive screen for producing an electrostatic latent image of an original to be copied is of multi-layer structure having an apertured region in which fine apertures are formed in uniform distribution and including a photo-conductive insulative ... | 08/19/1980 |
| 4181423 | Electrostatic color printing systems and methods using modulated ion streams The invention basically comprises systems and methods relating to the field of electrostatics and is concerned with multicolor electrostatic reproduction, printing or constituting on coated and uncoated print receiving media with multilayer apertured elem... | 01/01/1980 |
| 4174215 | Electrophotographic screen This invention provides an electrophotographic process for forming an image using a photosensitive screen having a plurality of fine openings. The screen has a conductive material on which a photoconductive material is provided, wherein at least a part of... | 11/13/1979 |
