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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 6606478 | Composite transfer assist blade A transfer assist blade for an electrophotograhic printing machine that provides the necessary stiffness to allow complete transfer of a toner image while avoiding excessive bending stress in the blade. The blade is made up of a semiconductive polyester l... | 08/12/2003 |
| 6574450 | Sheet pre-transfer device A sheet feeding device for an electrophotographic printing machine that minimizes trail edge flip when delivering a sheet to a photoreceptor at a desired tangential position. The sheet feeding device includes a baffle member which has two control points, ... | 06/03/2003 |
| 6269234 | Locking member for refillable print cartridge/toner bottle strategy A developer unit for developing a latent image recorded on an image receiving member with a supply of particles, the developer unit including a sump for storing a refill supply of particles received from a container for use in the developer unit, the deve... | 07/31/2001 |
| 6266506 | Mechanical keying concept for refillable print cartridge/toner bottle strategy A container for delivering a supply of particles for use in a developer unit of an electrophotographic printing machine, the container being fittable to an adapter associated with the developer unit, the container includes a body defining a chamber for st... | 07/24/2001 |
| 6259219 | Multiple sensor speed controller for a driven member An apparatus and method for precisely controlling a driven component in an electromechanical system, particularly for controlling the speed of a photoreceptor or intermediate transfer belt in an electrophotographic printing machine. A sensor monitors the ... | 07/10/2001 |
| 6249654 | Refillable all-in-one print cartridge/toner bottle strategy A developer unit for developing a latent image recorded on an image receiving member with a supply of particles, the developer unit including a sump for storing a supply of particles received from a container for use in the developer unit, the sump furthe... | 06/19/2001 |
| 6236826 | Toner bottle cartridge valve for refillable print cartridge/toner bottle strategy A developer unit for developing a latent image recorded on an image receiving member with a supply of particles, the developer unit including a valve connected to a sump for storing a supply of particles received from a container for use in the developer ... | 05/22/2001 |
| 6111593 | Using multiple digitally-produced exposure levels to compensate for laser absorption in read image-on-image xerography A method for achieving multiple exposure levels for IOI (IMAGE-ON-IMAGE) xerography when imaging a second color through a first toner layer previously developed on the photoreceptive member. In the example illustrated the data from the previous image path... | 08/29/2000 |
| 6070870 | Integral drive roll bearing assembly A replacement drive roll having an integral bearing for easy replacement and universal usage in a printing machine. The roll member has a bearing having a nonround outer race for retention in a frame member and a nonround inner race for engagement with a ... | 06/06/2000 |
| 6059284 | Process, lateral and skew sheet positioning apparatus and method An apparatus and method for registering and deskewing a sheet along a sheet path. A pair of drive spheres are located in the sheet path. When a sheet enters the nips formed by the spheres the sheet is driven until it is sensed by a sensor. The drive spher... | 05/09/2000 |
| 6055409 | Sheet pre-transfer device A pretransfer sheet feeding device for an electrophotographic printing machine that minimizes impact with and delivers a sheet to a photoreceptor at a desired tangential position. The sheet feeding device includes a selectively engageable drive nip and a ... | 04/25/2000 |
| 6035490 | Cover hinge with integral detent A simple hinge having an integral detent and stop member for a cover on an electrophotographic printing machine. The hinge is formed from a relatively lightweight material and has an aperture to secore a pin for attaching a cover. A detent is formed into ... | 03/14/2000 |
| 6035175 | Single revolution clutch with auto-homing feature A single revolution clutch with an auto-home feature. This feature, added to the single revolution clutch, provides a mechanical home position stop. It utilizes the motion of the case to accomplish this. Whenever the clutch is energized, the case is pulle... | 03/07/2000 |
| 6035161 | Developer backer bar that allows a large amount of photoreceptor wrap with minimal surface contact area for greater axial misalignment A developer backer bar having a surface having a plurality of radii for interfacing with a noncontact developer member. The backer bar is arranged so that it can be retracted for clearance purposes when removing or inserting a xerographic CRU. Upon instal... | 03/07/2000 |
| 6032004 | Integral safety interlock latch mechanism An interlock/latch system for a machine cover, particularly for an electrophotographic printing machine. A cover latch is provided with a latching mechanism and a set of electrical contacts which are mechanically closed when the cover is closed and the la... | 02/29/2000 |
| 6021304 | Low friction, conductive spots blade A cleaning apparatus having a spots cleaning blade to remove residual agglomerations of particles from the imaging surface. The spots cleaning blade is made from a material that has a low coefficient of friction, low resilience and higher hardness than a ... | 02/01/2000 |
| 6003864 | Jam clearance features for modular-type decurler having continuous bending nip A self adjusting jam prevention guide and jam clearance baffle for a printing machine. A moveable guide is attached to a machine subsystem module and is moveable from a first position to a second position. In the first position the guide bridges a gap bet... | 12/21/1999 |
| 5983053 | Non-contacting hybrid jumping developer dirt emission baffle seal A noncontact seal for a donor roll in an electrophotographic printing machine. The seal is fixed in the developer housing and envelopes each end of the donor roll but does not contact the donor roll. The small space does not allow a positive airflow suffi... | 11/09/1999 |
| 5963761 | Area coverage sensor calibration and algorithm for seam detection noise eliminator on a seamed photoreceptor An apparatus and method for eliminating random noise and calibrating a seam detection sensor in an electrophotographic printing machine. When the detected centerline remains within the tolerance window the algorithm proceeds as normal. In most cases, howe... | 10/05/1999 |
| 5953555 | Automatic adjustment of area coverage detector position A method to automatically adjust the timing of a process control toner patch reading in an electrophotographic printing machine. A solid area patch of width "X" is generated by the ROS at the time "T" from pitch reset. Theoretically, the centerline of thi... | 09/14/1999 |
| 5953565 | Developer backer bar that allows axial misalignment between the backer bar and the developer donor roll A developer backer bar having a substantially flat surface for interfacing with a noncontact developer member. The backer bar is arranged so that it can be retracted for clearance purposes when removing or inserting a xerographic CRU. Upon installation of... | 09/14/1999 |
| 5941518 | Sheet feeder with variable length, variable speed sheetpath A floating feedhead having a variable sheetpath for an electrophotographic printing machine. A feeder for feeding sheets from the top of a stack to a processor for a printing machine is disclosed. The feedhead is of a standard retard feed type having eith... | 08/24/1999 |
| 5937258 | Paper conditioner with articulating back-up/transfer rollers A paper conditioner to control image dependent curl which uses one or more counter-rotating transfer rollers which are initially spaced from their respective back-up rollers in the intercopy gap, and which come together as the lead edge enters the nip are... | 08/10/1999 |
| 5923356 | Liquid developing material replenishment control system An apparatus for developing an electrostatic latent image in a liquid developing material-based electrostatographic printing machine including a control system for controlling an amount of marking particles, carrier liquid and/or charge director added to ... | 07/13/1999 |
| 5887996 | Apparatus and method for sheet registration using a single sensor A deskewing and registering device for an electrophotographic printing machine. A single sensor determines the position and skew of a sheet in a paper path and generate signals indicative thereof. A pair of independently driven nips forward the sheet to a... | 03/30/1999 |
| 5890042 | Hybrid jumping developer with pulse width compensated toner mass control A hybrid jumping development system utilizing two component developer and providing an improved device for controlling developed toner mass. Toner is metered onto a donor structure and a toner cloud is formed in a development nip between the donor structu... | 03/30/1999 |
| 5887229 | Photoreceptor shipping installation clip for xerographic customer replaceable unit (CRU) A retaining device for a photoreceptive member in a xerographic CRU. The belt in a CRU is retained by the device and held in a shape so that it will slide easily over a drive module without catching on other machine components. The device is made up of a ... | 03/23/1999 |
| 5867635 | Selectable quality control and productivity in a color reprographic printing machine A method and apparatus for producing enhanced quality full color prints in an electrophotographic printing machine. In a electrophotographic printing machine in which multiple color separations are imaged and developed on a photoconductive member, a user ... | 02/02/1999 |
| 5848347 | Dual decurler and control mechanism therefor A compact dual decurler mechanism that provides a single straight paper path for achieving bidirectional decurling capability. The dual decurler mechanism consists of two pairs of drive roll and pinch shaft and a camming mechanism for controlling their en... | 12/08/1998 |
| 5848337 | Electrical biasing scheme for preventing overplating in an image-on-image electrostatographic printing system A method and apparatus for eliminating undesirable development of background charge potentials in a multicolor electrostatographic system is disclosed, wherein the application of a developer bias at a given development station is selectively controlled to... | 12/08/1998 |
| 5848331 | Fuser roll housing A modular fuser assembly having a lightweight plastic structural housing. The lightweight housing is made possible by utilizing heavy steel endplates which are designed so that the net moment on each end plate pair is minimized. This is accomplished by ha... | 12/08/1998 |
| 5842694 | Stack height control with height sensing feedhead A stack height control assembly utilizing the feedhead as the height sensing member. As a result of incorporating the stack height sensor into the feedhead, several advantages are realized. There is no additional drag imparted to the sheets as the result ... | 12/01/1998 |
| 5815771 | Apparatus for applying a high voltage electrical point of load contact A printing machine having multiple distributed high voltage power supplies is disclosed. The printing machine comprises a print engine having a plurality of high voltage electrical printing machine components. A housing supports at least one of the high v... | 09/29/1998 |
| 5812359 | Method and apparatus for lightweight corona device shield mounting A lightweight easily installed shield for a corona generating device. A frame to support the end blocks and provide a structural member for a corona generating device is provided. The shield for the corona generating device is made of a lightweight, thin ... | 09/22/1998 |
| 5809375 | Modular xerographic customer replaceable unit (CRU) A xerographic CRU (Customer Relpaceable Unit) for an electrophotographic printing machine. The xerographic CRU has retaining features and cooperates with a drive module with certain retractable features that allow the insertion and removal of the CRU with... | 09/15/1998 |
| 5775690 | Two step optimized stalled roll registration and deskew A sheet aligning and registration device for a printing machine. In a stalled roll registration device there is provided a drive mechanism preceding the stalled roll and a sensor to determine the size of a buckle formed in a sheet as it is fed into the re... | 07/07/1998 |
| 5769410 | Lift and drive actuators for feeder CRU A lift and interlock actuator mechanism for installing a CRU in a printing machine. There is provided a lift and interlock actuator mechanism which has a sliding planar member which is moved from a first position to a second position to remove and/or inst... | 06/23/1998 |
| 5748221 | Apparatus for colorimetry gloss and registration feedback in a color printing machine A method and apparatus for measuring colorimetric, gloss and registration data on a substrate exiting a printing machine. A detector using a series of red, green, and blue filters collects image data and maps the collected data to absolute color coordinat... | 05/05/1998 |
| 5720478 | Gateless duplex inverter A device for inverting a sheet along a path in an electric photographic printing machine. A gateless sheet inverter is provided in which a curved portion of a sheet path branch intersects a second portion of the sheet path to form a curved inverter throat... | 02/24/1998 |
| 5717984 | Driving, steering and tensioning roll for belt loops An apparatus for driving, steering and maintaining tension on a moving web, particularly in an electrophotographic printing machine of the type having an endless photoreceptor belt supported by a plurality of rolls and arranged to move in a predetermined ... | 02/10/1998 |
