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| Number | Title | Issue Date |
| 5175584 | Cleaning control device for image forming equipment A cleaning control device incorporated in electrophotographic image forming equipment for controlling the removal of toner remaining on a photoconductive element or image carrier after image transfer. Before the removal of the remaining toner, the surface... | 12/29/1992 |
| 5151744 | Cleaner brush retone film control A process for controlling the amount of film buildup on a photoreceptor surface caused by certain print mode and/or material through conditions in a single pass highlight color printer which enables or promote photoreceptor filming by the DAD toner additi... | 09/29/1992 |
| 4989048 | Control for releasing a cleaning blade based on the photoconductive element temperature A cleaning device for use in an electrophotographic copier, facsimile apparatus or similar image recorder for cleaning a photoconductive element to remove a toner which remains on the photoconductive element after image transfer. If the temperature of the... | 01/29/1991 |
| 4974020 | Removable developing units for a copying machine and display for indicating the useful life of the machine An image-forming machine, such as an electrostatic copying machine, having a number of optional features. A display device is provided for displaying the number or type of toner cartridge loaded in the main body of a developing device. An image-forming co... | 11/27/1990 |
| 4970536 | Apparatus for multicolor image forming wherein image forming conditions are adjusted based on reference images An apparatus having a plurality of developing devices for forming a multiple toner picture image composed of a plurality of layer toner picture images prepared from developed latent picture images formed on an image retainer by turning the image retainer ... | 11/13/1990 |
| 4945389 | Method of cleaning a photoconductive element of an image recorder A cleaning method applicable to a photoconductive element installed in an electrophotographic copier or similar image recorder of the type performing repetitive steps of charging, exposing, developing, transferring, discharging, cleaning and so forth. The... | 07/31/1990 |
| 4800147 | Xerographic process without conventional cleaner The invention is an electrophotographic imaging process comprising forming a first electrostatic latent image on an imaging surface of an electrophotographic imaging member comprising an electrophotographic insulating layer and an electrically conductive ... | 01/24/1989 |
| 4655581 | Copying apparatus A copying apparatus including a measuring device for measuring density of an image of an original document, a decision device for making a decision as to whether or not a measurement obtained by the measuring device is larger than a reference value, and a... | 04/07/1987 |
| 4611900 | Apparatus for sensing the presence of toner particles An apparatus in which the presence of toner particles is detected. The apparatus includes a member adapted to be charged by the toner particles in contact therewith. A signal is transmitted in response to the member being charged to indicate the presence ... | 09/16/1986 |
| 4557588 | Image forming apparatus having a cleaning member This invention provides an image forming apparatus such as electrophotographic copier, microfilm equipment, recording equipment, facsimile or printer. According to this invention, a movable cleaning member is maintained in contact with a member to clean i... | 12/10/1985 |
| 4533236 | Charge particle removal device Magnetic brush cleaner for removing residual charged particles such as toner from a charge-retentive surface such as a photoreceptor. The brush cleaner has a bias voltage applied thereto for establishing an electrostatic field for aiding in toner removal.... | 08/06/1985 |
| 4165171 | Electrographic apparatus and process Powder particles blemishing the background of a powder image formed by attraction of toner particles to an electrostatic charge pattern on a photoconductive support surface are removed selectively without loss of the image by subjecting the image bearing ... | 08/21/1979 |
| 4133610 | Optimum preclean corona current for eliminating the accumulation of contaminants from developers An electrophotographic machine of the transfer type in which tetrafluoroethylene-coated carrier beads transport toner particles to a development zone by virute of the triboelectric attraction between positive toner and negative tetrafluoroethylene. At the... | 01/09/1979 |
