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| Number | Title | Issue Date |
| 7441767 | Sheet feeder with stacking member lifted by planetary gear system To reduce the number of components and further to provide a downsized sheet feeder, a shaft is arranged to a lower side of a sheet receiver stacking sheets, and gears are respectively attached to each opposite end of the shaft to mesh with rack portions. The gears m... | 10/28/2008 |
| 7296789 | Sheet feeder, image reading apparatus, and image forming apparatus It is determined whether or not a jammed document is necessarily returned to a document tray when a jam of the document is caused within a carrier path and, then, the elevation operation of the document tray is controlled on the basis of its result of the determinat... | 11/20/2007 |
| 7264238 | Feed paper apparatus A paper feed has a door and a paper carrying tray, and raises the tray as paper is fed. A first detector that detects the presence of paper is located below a paper feed position by a margin corresponding to a given number of paper sheets, and second detector that d... | 09/04/2007 |
| 7198265 | Imaging apparatus including a movable media sensor An imaging apparatus includes a printing mechanism having a media path. A print media source is provided for supplying a sheet of print media to the printing mechanism. A drive unit is provided, with a drive shaft coupled to the drive unit. A media sensor device is ... | 04/03/2007 |
| 7182419 | Out of ink signal mechanism for an inkjet printer An out of ink signal mechanism for an inkjet printer having at least one inkbag is disclosed. The signal mechanism includes a printed circuit board having a circuit associated with each inkbag, a contact spring and at least one lifter. The contact spring is biased t... | 02/27/2007 |
| 6908082 | Method and system for providing sheet stack level control A system and method for providing the ability to more effectively control a paper stack in a reproduction apparatus. The level control behavior of the paper stack is characterized, and accordingly, additional lift commands are signaled when the behavior indicates th... | 06/21/2005 |
| 6874780 | Device for controlling the means delivering sheets to a machine A device for controlling delivery of sheets from a stack includes a lift for a stack of sheets. A sheet inserter removes sheets from the top of the stack to move them. A detector detects the front top level of the stack and measures the extent of variations in the l... | 04/05/2005 |
| 6824133 | Stack monitoring method and system Disclosed herein is a stack monitoring system for an imaging apparatus for monitoring media reserves. ... | 11/30/2004 |
| 6761352 | Method and system for double feed detection A system for detecting overlapped flat objects in a sequence of flat objects have at least one of their edges exposed for viewing as they pass along a feed path. The system includes a sensor for generating a signal in response to detecting a flat object in the feed ... | 07/13/2004 |
| 6651977 | Paper feeding apparatus with stack presence actuator A paper-feeding apparatus, which is not restricted by positions of sensors for detecting paper. Paper guides are provided which reliably reduces skew of the paper and enables precise printing by use of an uncomplicated structure. By providing the actuator... | 11/25/2003 |
| 6592119 | Stack height determination and stack height control mechanism The invention concerns a stack height determination mechanism (25) for a stack (1) consisting of flat material (2) with at least one sensor (3) to determine stack height and a stack height control mechanism. Exact determination of the stack height, especi... | 07/15/2003 |
| 6523821 | Paper feeder apparatus for use with image forming apparatus A feeder apparatus arranged on a side of a main body of an image forming apparatus is provided with a top door and a vertical door. The top door is provided in an opening defined above a sheet stacker, and the vertical door is provided in an opening defin... | 02/25/2003 |
| 6505832 | Variable acceleration take-away roll (TAR) for high capacity feeder A variable acceleration TAR. The properties and dimensions of the sheets in a stack are entered by a user or determined automatically. Since it is known from either customer provided input or automatic sensing what sheet length and resulting pitch size ar... | 01/14/2003 |
| 6293539 | Rotating or pivoting apparatus and medium feeding apparatus A medium feeding apparatus comprises a driving motor for moving a backup plate to press a medium against a pickup roller, piezoelectric elements for sensing slippage between the pickup roller and the medium which occurs while the roller rotates, and a con... | 09/25/2001 |
| 6179283 | Method for controlling an intermediate stacking device for flat shipments A method for controlling an intermediate stacking device for flat shipments, in particular in letter sorting facilities, comprising a stacking device (SR) on a movable stacking cart (SW), a bottom transporting belt (UB) on which the shipments are position... | 01/30/2001 |
| 6032946 | Document feeder A document feeder comprises a tray for containing a stack of documents to be fed along a document feed path. A picker mechanism picks a document from the stack and moves the picked document along the document feed path. A controllable motivator disposed i... | 03/07/2000 |
| 5988629 | Control for a sheet stack supporting platform A sheet feeder having a platform for supporting a stack of sheets, a feed head assembly for feeding sheets seriatim from the top of a sheet supply stack on the platform, a mechanism for moving the platform relative to the feed head assembly, and a device ... | 11/23/1999 |
| 5899448 | Sheet feeding apparatus and method Sheet feeding apparatus includes a sheet feed device which operates to feed sheets towards or away from a sheet store. The sheet feed device has at least one resilient portion which flexes against its resilience relative to the remainder of the sheet feed... | 05/04/1999 |
| 5722653 | Single-sheet feeder Described is a single-sheet feeder comprising a sheet transporter and a movable carrier for individual sheets which defines a plane, a first flat reference stop which serves as a side edge guide for the sheets and extends substantially perpendicular to th... | 03/03/1998 |
| 5421571 | Apparatus for the separate supply of film bags to a filing machine Apparatus for the separate supply of film bags to a filling machine, with a belt conveyor receiving the film bags as an oblique, fanned out stack. A drive acts on the belt conveyor. A separating wheel is positioned adjacent to the delivery section of the ... | 06/06/1995 |
| 5398924 | Sensor for cyclically scanning the height of a pile A feeler for cyclically sensing the pile height of a feed pile in a sheet-fed machine, in particular a printing machine, having a lever drive linkage with a sensing roller, which at least during paper travel is in constant touch contact by means of a spri... | 03/21/1995 |
| 5295678 | Control drive for a stack lift drive in sheet processing machines, more particularly sheet printing machines A system and method for controlling the lifting of a stack of sheets to be printed in order to keep the currently uppermost sheet of the stack within a certain predetermined height range for reliable removal to a feed table. A motor is operated in either ... | 03/22/1994 |
| 5235907 | Apparatus for stacking printed sheets for a screen process printing machine A printing machine system includes a printing machine which discharges a printed material after the printing operation is completed. The printing machine system also includes a drier which dries the printed material discharged from the printing machine. A... | 08/17/1993 |
| 5104109 | Paper sheet delivery/stacking control system using fuzzy inference Paper sheets, which are typified by bank notes, are maintained substantially upright between a freely movable pressure plate and a rotatively driven delivery/stacking roller opposing the pressure plate. Contact pressure which the delivery/stacking roller ... | 04/14/1992 |
| 5102112 | Paper feeding device for image forming equipment A paper feeding device for image forming equipment effectively uses the space available in the equipment and thereby accommodates a greater number of paper sheets in successive paper storing stages without the equipment being increased in height. A first ... | 04/07/1992 |
| 4960272 | Bottom vacuum corrugation feeder stack height detection system calibration method A vacuum corrugation feeder stack height detection calibration system and method includes placing a single document in the document tray. Coupled to the stack height arm at the pivot point is a high resolution rotary encoder and dual beam sensor. The stac... | 10/02/1990 |
| 4928949 | Low paper indicator In accordance with the foregoing objects, the present invention provides for a source and detector arranged in the path of a diminishing supply of documents, the strategically located detector responding to the absence of a supply at a specific point for ... | 05/29/1990 |
| 4888617 | Sheet feeding mechanism for an image recording device An image recording device for forming an image on an image receptive member includes a casing for storing a stack of image receptive sheets, a sheet feed roller for delivering one image receptive member at a time from the casing, a movable plate disposed ... | 12/19/1989 |
| 4815916 | Apparatus for raising a magnetizable object from a stack and for moving it away for further processing A plurality of magnetic elevator devices disposed along the sides of a vertical stack of magnetizable steel objects, such as sheets or rods, separates them and raises the uppermost one vertically. Sensing devices in a control system sense when the object ... | 03/28/1989 |
| 4770403 | Paper feeder usable with a copier and others A paper feeder is disclosed which has a plurality of trays arranged one above another and a paper feed unit movable up and down to one of the trays selected. To control paper transport speed, a paper sensor is actuated prior to a level sensor during movem... | 09/13/1988 |
| 4678175 | Sheet money feeding machine with improved separation means A money feeding machine having a friction feed mounted to feed from the top of a stack of money is disclosed. The stack of money is contained within a cassette having a moveable bottom. The bottom of the cassette is raised by a motor as money is fed from ... | 07/07/1987 |
| 4671502 | Method and apparatus for counting sheets which may be fed in skewed and/or overlapping fashion Sensors in the infeed and output stackers, under control of the microprocessor, monitor the sheets. The apparatus is started automatically by placing sheets in the infeed. A count of the sheets is developed and displayed as the sheets are fed. When the in... | 06/09/1987 |
| 4589645 | Document set separator and stack height sensor In a recirculating document handler for a copier for recirculating document sheets from a stack thereof in a document tray of the document handler to be copied and to be restacked therein after copying, with a document feeder for feeding the documents fro... | 05/20/1986 |
| 4585332 | Electrophotographic printing machine with means for sensing size of document An electrophotographic printing machine in which a variable magnification optical system is controlled so that information being reproduced from an original document fits on a copy sheet. The size of the original document is sensed. The device sensing the... | 04/29/1986 |
| 4513956 | Conveying device for sheets Device for the conveying of sheets from each of a plurality of sheet piles via a partially common conveyor track. This track extends in vertical direction along superposed stock holders. Adjacent to the sheet delivery side a driven roller is stationarily ... | 04/30/1985 |
| 4451191 | Stacked fabric removal and re-locating device A device for removing and relocating pieces of fabric from a stack having a carousel that carries a plurality of stack support plates disposed about the axis of rotation of the carousel. When one supportplate is depleted of its pieces forming a stack, a bar fo... | 05/29/1984 |
| 4429408 | Device for preventing faulty counting operations in a paper sheet counter Device for preventing double counting is provided, which is to be used in a paper sheet counting apparatus having a holder for moving between a paper sheet depositing position and a paper sheet counting position, a rotating cylinder provided with a plural... | 01/31/1984 |
| 4397455 | Document dispenser with escrow system An apparatus for dispensing documents from a storage location to a discharge area includes structure for transporting the documents from the storage location along a transport path to an escrow or collection station. The leading and trailing edges of the ... | 08/09/1983 |
| 4397457 | Sheet feeding apparatus A stack of sheets, in particular hinged-lid blanks B for cigarette packets, are disposed in a vertical stack S from the top of which successive sheets are lifted by a suction member and removed by mechanical means, e.g. by a pair of conveyors 21 provided ... | 08/09/1983 |
| 4386769 | Automatic paper feeding arrangement An automatic paper feeding arrangement for use in a copying machine and the like having a plurality of stages of paper feeding sections for feeding the paper at a selected one of the paper feeding sections. The automatic paper feeding arrangement includes... | 06/07/1983 |
