Abstract: An element, or elements, of a collection chamber which may remove excess deposition of particulate matter without interrupting or otherwise disturbing the normal operation of the device are provided. These elements may oscillate within a collection chamber and substantially remove any particulate matter which may be deposited, and accumulate, within the collection chamber over time. Such an oscillation and removal of undesirably deposited particulate matter may be performed without substantially interfering with the ability of particulate matter to travel through the chamber or space. The element or elements may comprises but are not limited to, one or more plastic wiping elements, or one or more spring-like wire form structures. Additionally, one or more post processing systems and methods, for final disposal, transformation, or processing of the particulate matter which travels through the collection chamber may be provided.

Abstract: An element, or elements, of a collection chamber which may remove excess deposition of particulate matter without interrupting or otherwise disturbing the normal operation of the device are provided. These elements may oscillate within a collection chamber and substantially remove any particulate matter which may be deposited, and accumulate, within the collection chamber over time. Such an oscillation and removal of undesirably deposited particulate matter may be performed without substantially interfering with the ability of particulate matter to travel through the chamber or space. The element or elements may comprises but are not limited to, one or more plastic wiping elements, or one or more spring-like wire form structures. Additionally, one or more post processing systems and methods, for final disposal, transformation, or processing of the particulate matter which travels through the collection chamber may be provided.

Abstract: Embodiments herein include a transfer assist blade that is adapted to bias media toward a marking device. The transfer assist blade has a plurality of movable blade segments that overlap one another. In one embodiment, a first movable blade segment (comprising a first wear layer and a first underlying layer beneath the first wear layer) overlies a second movable blade segment (comprising a second wear layer and a second underlying layer beneath the first wear layer). More specifically, in this embodiment, a portion of the first wear layer overlaps a portion of the second wear layer.

Abstract: Embodiments herein comprise a printing apparatus having a media path and a printing engine along the media path. The printing engine comprises a back up roll having an outer surface and an inner surface, a bias roll adjacent the outer surface of the back up roll, a photoreceptor belt, and a transfer belt. The bias roll is positioned with respect to the back up roll to form a nip between the bias roll and the back up roll. A portion of the photoreceptor belt is in the nip between the bias roll and the back up roll, and a portion of the transfer belt is in the nip between the bias roll and the photoreceptor belt. A transducer (e.g., an ultrasonic piezoelectric device) is contacting the inner surface of the back up roll. The transducer is physically connected to the back up roll in a manner such that the transducer transfers vibrations to the back up roll and to the photoreceptor belt. For example, in one embodiment, the transducer contacts and is physically biased against the inner surface of the back up roll.

Abstract: A photoconductor belt cleaning system is described. This system can utilize in one embodiment one cleaning brush and a cleaning blade, and in a second embodiment, two cleaning brushes, brush 1 and brush 2, with a cleaning blade. In the second embodiment, the cleaning blade is located in the system before brush 2, and adjacent to brush 1. The brushes are charged in an opposite polarity to the charge of the toner to be removed from the photoconductor belt.

Abstract: A system and apparatus that removes and collects non-functional wire assemblies from dicorotron units is described. It has a removal tool mounted on the top of a storage box. The removal tool has an open top and bottom, the open bottom is aligned with an opening in the top of the box to permit a dislodged wire assembly to fall therethrough.

Abstract: Electrostatic printing processes utilize corona-charging units. When those units wear out or become faulty, they need to be replaced. This embodiment provides a tool that can be used to remove a faulty electrode wire assembly from the unit. This same tool when loaded with a new wire assembly can insert a new wire assembly into the emptied corona charging unit, sometimes referred to as a dicorotron unit. The tool, therefore, is used both to remove or insert a wire assembly from or into a dicorotron unit.

Abstract: System and methods may calibrate an AC rms voltage applied to a coronode of a charging device to achieve a predefined operating current at a target value of DC shield voltage. The target value of DC shield voltage may be set to be substantially below an over-voltage condition. System and methods may use a calibration routine that may determine a minimum AC voltage required to achieve the target value of DC shield voltage. Systems and methods may alternatively, or additionally, sense current and adjust the applied voltage to obtain a target current.

Abstract: A defect analysis system for a xerographic print engine includes a residual mass sensor that senses the two-dimensional signature structure of residual mass remaining on a photoconductive or other substrate surface after image transfer. Preferably, the sensor is a full width array that spans substantially an entire width of the photoconductive surface. This information is then processed and analyzed to determine a specific type of transfer defect present. This may include the quantified level of defect for each detected type. The defect analysis system may also include a closed-loop control system that can adjust various xerographic process parameters using feedback based on the identification and optionally magnitude of each specific defect type. The identified print quality defect, such as mottle, streaks, point deletions, graininess, etc.

Abstract: Methods, computer-readable media, and systems for externally cued aircraft warning and defense are disclosed. A surveillance system may include a sensor field or array and may include a processor system that processes signals including acoustic signals received by the sensor array. Signals including acoustic signals are processed to determine the presence of indicia, including acoustic signatures, of known surface-to-air missiles including man-portable air defense systems. When the presence of such surface-to-air missiles is indicated, a cue signal is sent to one or more countermeasure systems that include one or more countermeasures such as chaff, expendable decoys and flares. The countermeasure systems may be ground-based or aircraft-based. The countermeasures are deployed in response to the cue signal. The surface-to-air missile may consequently be defeated.

Abstract: A disk stacker is provided having a tamping mechanism located over a sheet receiving platform for tamping side edges of the sheets as they fall to a top of the stack. First and second vertical side registration walls are provided and positioned above a different one of two side edges of the sheet receiving platform and are spaced apart so that a sheet can be received therebetween. A first tamper is located adjacent the first side registration wall and is movable through an aperture therein between an active position wherein the first tamper extends through the aperture and is located between the first and second side registration walls to tamp incoming sheets against the second side registation wall, and an inactive position wherein the first tamper is retracted behind the first side registration wall out of an area between the first and second side registration walls.