Abstract: A stair lift includes a track, a carriage, a drive mechanism and a folding mechanism. The track has a main track section and a lower track section. The lower track section is pivotally mounted to the main track section and is moveable between a lowered position and a raised position. The folding mechanism shifts the lower track section to its lowered position whenever the carriage and seat approach the lowermost stairs and lifts the lower track section to its raised position as the carriage and seat move up the stairway. The folding mechanism is actuated and powered by movement of the carriage and does not require its own motor, cylinder, or other actuator.

Abstract: A printing system capable of binding a modified image data to an individual print engine in a multiple print engine system. The system includes an image processor such as a digital front end, a set of transformations, and a configuration of printers. The system can also include a scanner that scans a test image so that this image binding process can be repeated. Furthermore, the transformation binding can also take place in real time.

Abstract: A hybrid printing system includes (a) a media path assembly having an image transfer/transport unit for receiving and moving media to a fusing apparatus; (b) a process color image output terminal (IOT) assembly including first imaging components for forming and transferring color images onto the intermediate image receiving member, the color IOT assembly being mounted for forming a first image transfer nip with one of a first side and a second and opposite of the image transfer/transport unit; and (c) a monochrome image output terminal (IOT) assembly mounted opposite the process color image output terminal (IOT) assembly for forming a second image transfer nip with the other of the first side and the second and opposite of the image transfer/transport unit, the monochrome image output terminal (IOT) assembly including a moveable image bearing member and second imaging components for forming monochrome images on the image bearing member.

Abstract: A hybrid printing system includes (a) a media path assembly having an image transfer/transport unit for receiving and moving media to a fusing apparatus; (b) a process color image output terminal (IOT) assembly including first imaging components for forming and transferring color images onto the intermediate image receiving member, the color IOT assembly being mounted for forming a first image transfer nip with one of a first side and a second and opposite of the image transfer/transport unit; and (c) a monochrome image output terminal (IOT) assembly mounted opposite the process color image output terminal (IOT) assembly for forming a second image transfer nip with the other of the first side and the second and opposite of the image transfer/transport unit, the monochrome image output terminal (IOT) assembly including a moveable image bearing member and second imaging components for forming monochrome images on the image bearing member.

Abstract: Carrier includes a mixture of carrier particles. The mixture may contain first carrier particles containing carrier cores that are coated with a polymer coating, the coating containing polymer and conductive particles, and second carrier particles containing carrier cores that are not coated with a polymer coating. The mixture may contain carrier particles having a conductivity of at least about 5×10?8 (ohm-cm)?1 and carrier particles having a conductivity of less than about 1×10?8 (ohm-cm)?1.

Abstract: In a system including a plurality of elements, or plurality of subsystems of elements, each performing a process using process control to maintain operation within a latitude of a setpoint and having an output characteristic that contributes to an overall output quality specification of the system, a control method includes setting a desired overall output quality specification, and determining optimum setpoints and latitudes of the plurality of elements, within a range of possible setpoints and latitudes for each element, to achieve the desired overall output quality specification. The control method further includes dynamically re-setting the setpoints and/or re-allocating the latitudes of at least two of the plurality of elements (or subsystems of elements) to compensate for degradation of the attribute caused by variation in the output characteristic of one element within the desired overall output quality specification.

Abstract: A printing system capable of binding a modified image data to an individual print engine in a multiple print engine system. The system includes an image processor such as a digital front end, a set of transformations, and a configuration of printers. The system can also include a scanner that scans a test image so that this image binding process can be repeated. Furthermore, the transformation binding can also take place in real time.

Abstract: A method of controlling an actuator includes determining a function of an actuator value based on a cost function index that represents a relationship between a tone reproduction curve error and the actuator value necessary to achieve a tone reproduction curve target, determining an actual tone reproduction curve error from an obtained sample of a tone reproduction curve and controlling the actuator based on the function and actual tone reproduction curve error to move to a point that represents the tone reproduction curve target. A Xerographic system includes an actuator, an input device that inputs the cost function index and a controller that controls the Xerographic system to obtain the sample, determine an actual tone reproduction curve error from the sample, and control the actuator based on the cost function index and the actual tone reproduction curve error to move to a point that represents the tone reproduction curve target.

Abstract: A Recharge-Expose-and-Develop Image on Image color electrophotographic printing system in which the photoreceptor is recharged between development of one color of toner image and the subsequent exposure for a second color latent image by first being sprayed with opposite sign ions to reduce the photoreceptor potential and then being charged with correct sign ions to recharge the photoreceptor to a desired potential.

Abstract: In a multi-color imaging apparatus utilizing a recharge step between two image creation steps for recharging a charge retentive surface to a predetermined potential pursuant to forming the second of the two images, a first corona generating device recharges the charge retentive surface with a direct current to a higher absolute potential than a predetermined potential, a second corona generating device recharges the charge retentive surface with a direct current to a lower absolute potential than the predetermined potential, and then a third corona generating device recharges the surface, also with a direct current, to the predetermined potential. An electrical charge associated with the first image is prevented from reversing its original polarity after being recharged by the third corona generating device, thereby preventing the occurrence of under color splatter of the toner image.

Abstract: A three roll fuser system for a xerographic machine includes a reversibly drivable central pressure roll, a first fuser roll located adjacent the central pressure roll forming a first fuser nip with the central roll, and a second fuser roll located adjacent the central pressure roll on a substantially opposite side of the central pressure roll as the first fuser roll forming a second fuser nip with the central roll. Copy sheets having an unfused image on a side thereof are transported from an inlet through one of the first and second nips to fuse the image on the copy sheet and then transported to an outlet. The three roll fuser system is capable of selectively fusing either side of a copy sheet without requiring extra sheet inverting devices. In a preferred embodiment, the fuser rolls have differing physical properties and can be operated under different operating conditions such as fuser temperature and speed.

Abstract: A module adapted to be mounted removably in a printing machine. The module has a photoconductive belt entrained about a plurality of rollers mounted on a frame. One of the rollers is movable between a non-operative position, in which the space between the rollers is reduced, and an operative position, in which the space between the rollers is increased. A charging station and a cleaning station are mounted on the frame of the module adjacent the photoconductive belt. When one of the rollers is in the non-operative position, a cover covers at least the photoconductive belt. The cover has an insert about which a portion of the photoconductive is wrapped. The insert supports the photoconductive belt in a non-tensioned condition external to the printing machine.