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| Number | Title | Issue Date |
| 4660503 | Method and apparatus for improving a multi-color electrophotographic image An improvement in the method and apparatus for producing a multi-color electrophotographic image wherein an electrophotographic medium is mounted on a carrier therefor and is translated over a predetermined path so that the medium is first charged, then e... | 04/28/1987 |
| 4601569 | Apparatus for cleaning a photoconductor A cleaning apparatus includes a magnetic cleaning brush for removing residual toner from a photoconductor. A hollow rotating detoning roller electrostatically removes toner from the cleaning brush. The detoning roller has apertures in the surface thereof ... | 07/22/1986 |
| 4586059 | Collected toner conveying device of electrostatic recording apparatus A collected toner conveying device of an electrostatic recording apparatus for receiving a toner remaining on a latent image carrier after a toner image is printed on a transfer-printing sheet and discharging the toner to outside. The collected toner conv... | 04/29/1986 |
| 4561755 | Cleaning device for cleaning copy paper separation device and transport device in electrophotographic copying machine An electrophotographic copying machine comprises a cleaning device for cleaning at least the tip of a separation claw used for separating a copy paper from a photoreceptor. The separation claw is pivotably moved between a first position of separating the ... | 12/31/1985 |
| 4530597 | Brush cleaning device A brush cleaning device for electrophotographic reproducing apparatus of the type wherein a fur brush is contacted against an image receptor for removing magnetic toner remaining thereon, comprises a nonmagnetic cylindrical sleeve disposed near the fur br... | 07/23/1985 |
| 4483611 | Magnetic cleaning device A magnetic cleaning device for cleaning a surface to be cleaned by removing magnetic particles therefrom includes a rotatable sleeve of a nonmagnetic material on the outer peripheral surface of which is planted a plurality of fibers to form a fur brush, a... | 11/20/1984 |
| 4451139 | Cleaning apparatus for photoconductive element A cleaning apparatus for a photoconductive element includes a cleaning member engaged with the surface of the photoconductive element to remove residual toner therefrom, a toner collecting member for collecting the toner removed by the cleaning member, an... | 05/29/1984 |
| 4361922 | Cleaning brush for electrostatic copiers, printers and the like A cleaning brush for dry electrostatic copiers and printers is provided with two or more types of bristles, one of which is made from a conductive material, the other types to be made from non-conductive materials; the conductive bristles are all of equal... | 12/07/1982 |
| 4355886 | Polyvinyl acetal coated carrier particles for magnetic brush cleaning An electrostatographic development and cleaning system employing electrically insulating carrier particles. The carrier particles comprise a core having magnetic or magnetically-attractable properties which is coated with a polyvinyl acetal. The coated ca... | 10/26/1982 |
| 4350750 | Electrophotographic process Either a single copy or a plurality of copies of an original document may be made. Making a single copy or the last copy of a plurality of copies comprises, during a first revolution of a photoconductive drum, electrostatically charging the drum, radiatin... | 09/21/1982 |
| 4348103 | Cleaning apparatus for photosensitive member of electrophotographic copying machine A cleaning apparatus for a photosensitive member of an electrophotographic copying machine is provided. The apparatus comprises a cleaning brush disposed for contact with a photosensitive drum while rotating in order to remove unnecessary developing toner... | 09/07/1982 |
| 4326315 | Film cleaner A used roll of photostatic film is guided through a series of bunny brushes and vacuum nozzles to reclaim the film. The brushes pick particles from the film. The vacuum nozzles, connected to a blower, remove the particles from the brush. The reclaimed fil... | 04/27/1982 |
| 4319831 | Cleaning device in a copying machine At least a part of the portion of a cleaning device to contact to the image retaining portion in a copying machine of a transferring system is composed of conductive composite fibers consisting of at least one conductive layer containing conductive fine p... | 03/16/1982 |
| 4297021 | Powder material transportation apparatus The powder material transportation apparatus for transporting powder materials such as developer powder, by a rotating member such as a coil is provided with an agitator for destroying a bridge of powder material which is apt to be formed in an upper port... | 10/27/1981 |
| 4279499 | Electrophotographic cleaning apparatus A magnetic brush cleaning apparatus which includes a magnetic brush roll having a plurality of magnets mounted therein, a reservoir for carrier particles closely spaced from the magnetic brush roll, a pickoff for removing a part of the carrier particles c... | 07/21/1981 |
| 4278342 | Xerographic charging A xerographic device having a reusable photoconductor which is subjected in repeating cycles to (1) a charge corona whereat the photoconductor is uniformly charged to a negative voltage, (2) an imaging station whereat a working portion of the photoconduct... | 07/14/1981 |
| 4264190 | Toner cleaning device for an electrophotographic apparatus A cleaning device for an electrophotographic apparatus including a cleaning brush for cleaning unnecessary residual toner particles adhered to an electrostatic latent image retentive member, a cleaning fan for obtaining an air flow to suck the toner parti... | 04/28/1981 |
| 4230406 | Cleaning system for an electrostatic copier An apparatus which cleans particles from a photoconductive member arranged to advance along a predetermined path. When the photoconductive member is stationary, the particle cleaner and photoconductive member are spaced from one another. The photoconducti... | 10/28/1980 |
| 4134673 | Dual brush cleaning apparatus The cleaning apparatus comprises a first cleaning brush arranged for brushing engagement with the imaging surface and a second cleaning brush arranged for brushing engagement with the imaging surface following the first cleaning brush. The first cleaning ... | 01/16/1979 |
| 4097140 | Method and apparatus for cleaning toner in electrophotographic copying machines A method and apparatus for cleaning toner attaching to the surface of a photosensitive member of an electrophotographic copying machine of the dry, transfer type which employs a magnetic toner as developer. Subsequent to the transfer step, the magnetic to... | 06/27/1978 |
| 4095980 | Drum cleaning method and apparatus for electrostatography The entire surface of a photoconductive drum is developed with a toner substance after imaging, and a copy sheet is fed into contact with the drum for transfer of the toner image thereto. If the copy sheet is smaller than the maximum image area of the dru... | 06/20/1978 |
| 4087170 | Electrostatic copying apparatus with combined charging transfer unit An electrostatic copying apparatus comprising a rotatable drum having a photosensitive layer formed on the circumferential surface, the drum making two rotations for performing a series of copying functions including charging, exposure, development, trans... | 05/02/1978 |
| 4071296 | Electrostatic-copier cleaning device A cleaning device for an electrostatic copier of the type having an endless travelling charge carrier provided with a photosensitive surface which is electrostatically chargeable to form a latent image to which toner particles are attracted for subsequent... | 01/31/1978 |
| 4032228 | Foreign object detector/brush cleaner A reproduction machine having a cleaning brush mechanism for cleaning the photoreceptor surface of the machine has a detector mounted within the mechanism for sensing the presence of any transfer sheet which might accidently enter the mechanism. The clean... | 06/28/1977 |
| 4025188 | Photoactive device for xerography This application relates to a new way of carrying out xerographic functions while minimizing development and cleaning problems commonly associated with the photoreceptor surface and while maintaining excellent photoconductor efficiency and flex; and a dev... | 05/24/1977 |
| 3989372 | Photoconductor cleaning stations A photoconductor member is cleaned by a rotating fiber brush. The cleaned particles are knocked from the brush by a knock-off bar causing substantial wear on the brush. To compensate for the wear, both the knock-off bar and the fiber brush are adjusted fo... | 11/02/1976 |
| 3969785 | Residual toner removing apparatus A residual toner removing apparatus which generally comprises four sections communicating with one another, i.e., a cleaner section including a cleaner brush rotatably provided in a housing which has an opening adjacent to a photoreceptor surface, and a d... | 07/20/1976 |
| 3965524 | Residual toner removing apparatus A residual toner removing apparatus comprises a rotatable cleaning brush enclosed by a casing plate and a restriction board except for two gaps housed in a housing with an opening adjacent to a known photoreceptor surface. During rotation, brush hairs con... | 06/29/1976 |
| 3941472 | Photosensitive drum for electrophotographic copying machines An electrically insulated minor portion is provided on the periphery of a photosensitive drum comprising a cylindrical supporter, a photoconductive strip wound in roll form on a supply reel disposed in the interior of the cylindrical supporter and paid ou... | 03/02/1976 |
| 3936178 | Apparatus for large scale screen display of images An electrophotographic film member is exposed to an image source, such as a cathode ray tube display unit, and the latent image toned to form a temporary visible image on said film member at a first station. The film member carrying the temporary visible ... | 02/03/1976 |
