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| Number | Title | Issue Date |
| 7484731 | Printing device and method A device and method for assisting a user to clear a media jam in a printing device that announces pages, picks media responsively to the announced pages and images the picked media using a media transport path, that: detects a media jam at a given location along the... | 02/03/2009 |
| 7427061 | Retard feeder A semi-active retard feeder employs a hysteresis clutch to provide the resisting torque to a retard roll. A low cost Hall Effect sensor is added to the clutch assembly to provide a feedback signal during the feeding cycle in order to detect the onset of degraded fee... | 09/23/2008 |
| 7289760 | Printing device with manual paper feeding function A printing device with a manual paper feeding function includes a manual paper feeding unit which feeds a plurality of papers, a size sensor which detects a paper size of a fed paper, a paper size error determining unit that determines a presence or an absence of a ... | 10/30/2007 |
| 7204485 | Media thickness detecting device of media dispenser A media thickness detecting device of a media dispenser comprises: a feed roller through which media passes to be contacted thereto, a thickness detecting portion contacted to a surface of the feed roller by a point and rotated when the media passes through the surf... | 04/17/2007 |
| 7128259 | Detector A detector (10) for detecting an object (42) in a media item (40), such as a check or banknote is described. The detector (10) comprises first electrically conducting means (14), such as a roller, disposed on one side of a media pa... | 10/31/2006 |
| 7058353 | Paper detecting device of paper feeding cassette and an image forming apparatus having the same A paper detecting device to detect paper presence on a paper plate in a paper feeding cassette, and comprising a light-emitting device and a light-receiving sensor. In the paper feeding cassette, an end-fence is movably mounted, and at least one of the light-emittin... | 06/06/2006 |
| 7048273 | System and method for monitoring grouped resources System and method for monitoring grouped resources. A system and method of monitoring resource units in a stack is provided. The system and method includes providing a group of resource units and determining a thickness of one or more of the resource units. The syst... | 05/23/2006 |
| 6802504 | Diagnostic methodology for an inserting machine The present invention relates to a system for providing diagnostic information relating to the performance of an inserter system having a roller arrangement for conveying a document in a linear direction and first and second sensors located in close proximity to the... | 10/12/2004 |
| 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 |
| 6661979 | System and method for detecting low paper in a printer using continuously variable measurements A system determines the level of paper available in paper supply for printing. The system comprises a signal emitter and a variably activated receiver. The receiver alters an electrical parameter such as a resistance in accordance with the portion of the ... | 12/09/2003 |
| 6651975 | Sheet pack and printer Disclosed are a sheet pack and a printer, the sheet pack being inexpensive and capable of being easily set onto the printer and simply exchanged with another one, while users can know information such as the quality, size and number of sheets of printing ... | 11/25/2003 |
| 6535789 | Method and device for preventing limit values from being exceeded in sheet-fed printing machines A method for preventing limit values from being exceeded in sheet-fed printing machines includes acquiring values relevant to the printing process with respect to individual sheets, and processing those values so that predetermined limit values are mainta... | 03/18/2003 |
| 6193426 | Method of determining optimum time for replacing the media feed roller of a printing device A method for alerting a user when the time has arrived to replace a media feed roller on a printing device, employs statistical analysis of data gathered relating to the number of pages between misfeeds associated with the media feed roller. It has been a... | 02/27/2001 |
| 6176480 | Sheet stacking apparatus An apparatus for stacking discharged sheets on a sheet stacking plate, including a distance sensor disposed above the sheet stacking plate and having a light illumination portion for illuminating the sheet stacking plate and a light receiving portion for ... | 01/23/2001 |
| 6027108 | Sheet conveying apparatus The present invention relates to a sheet conveying apparatus for conveying a sheet in recirculation. The apparatus comprises a feed tray, a feed mechanism, a recirculation conveying mechanism for conveying the sheet fed by the feed mechanism to return it ... | 02/22/2000 |
| 6022019 | Device for checking sheet articles such as bank notes An apparatus for testing sheet material with sensors having one or more components and fastened to the front of a base plate as separate units on one and/or both sides of a sheet material path. The fastening system includes a first fastening device which ... | 02/08/2000 |
| 5971392 | Device for calculating sheet number in a sheet feeder and method for calculating the same A device for calculating the number of recording papers on an automatic sheet feeder, including a sheet thickness detector, generating a sheet thickness value, and a sheet pile thickness detector, generating a sheet pile thickness value, which the process... | 10/26/1999 |
| 5934661 | Friction paper-feed method and apparatus capable of preventing paper-feed failure caused by slippage A friction paper-feed apparatus and method used in an information processing apparatus such as a facsimile apparatus prevents a paper-feed failure caused by a slippage produced at a contact region between a friction paper-feed roller and a sheet of paper.... | 08/10/1999 |
| 5915159 | Automatic original feeding device with jam recovery displays An automatic original feeding device has a mounting unit for mounting originals, a first sheet conveying path for conveying an original mounted on the mounting unit to a predetermined position, and a second sheet conveying path for guiding the original ou... | 06/22/1999 |
| 5890708 | Printing system and method automatically detecting paper length and control method thereof A printing system which can automatically detect the length of paper fed into the system and control the system based upon the detected length of the paper. The printing system has a paper driver for conveying papers loaded at the initial stage of printin... | 04/06/1999 |
| 5853171 | Media level indicator A media level indicator is provided to identify the amount of media in an input stack of a sheet processing device. The media level indicator includes an odometer mechanism configured to survey the printer's feed mechanism so that it may quantify movement... | 12/29/1998 |
| 5826156 | Image forming apparatus The size of a paper put in a tray for manual insertion is decided according to detectors provided in the tray. When detection precision of the paper size is not so high to determine paper size, it is instructed to specify a paper size manually. In another... | 10/20/1998 |
| 5667215 | Paper conveying device A paper conveying device of the present invention includes a roller to convey paper, a first and a second sensors to detect the paper conveyed through the roller and a timer to measure a time required from the time when the first sensor detects the paper ... | 09/16/1997 |
| 5651538 | Paper feeding method of an image forming apparatus A paper feeding method for an image forming apparatus having a sensing device for sensing the feeding state of paper fed from a manual paper feeding device and an automatic paper feeding device includes the steps of: picking up and feeding paper from the ... | 07/29/1997 |
| 5622364 | Apparatus and method of determining a media level in a supply tray Apparatus and method is provided for determining a relative vertical position of a media sheet within a supply tray by sensing a picked sheet traveling through a media path, and therefrom determining time and/or distance traveled by the picked sheet. The ... | 04/22/1997 |
| 5618037 | Method for maintaining mailpiece integrity A method for maintaining mailpiece integrity in a mailing system when a mechanical module experiences an error. For one category of errors, the mailing system may automatically recover from the error without operator intervention. For the remaining catego... | 04/08/1997 |
| 5615876 | Apparatus and method for sensing accordion jams in a laser printer An apparatus for detecting a transfer medium (i.e., paper) accordion jam in a processing path of a laser printer comprises an accordion detection flag pivotally disposed near the processing path. In the event an accordion jam occurs to the transfer medium... | 04/01/1997 |
| 5614987 | Print detector for use in a sorter A print detector for use in a sorter capable of detecting photoprints on each of a plurality of print carriers so as to prevent photoprints from being erroneously left on any print carrier. Print carriers are mounted at equal intervals on an endless belt ... | 03/25/1997 |
| 5543708 | Method and apparatus for controlling continuously conveyed printed products A method and apparatus for controlling a conveyance of printed products are provided according to which the printed products are conveyed continuously and in successive manner in a conveying direction into a region adjacent a circuit when the circuit is o... | 08/06/1996 |
| 5490667 | Sheet transportation apparatus carrying out error determination considering switching of sheet transportation path A timer starts when a first sensor detecting "close" of a switching cover and a second sensor detecting "open" of the switching cover are both OFF at the start of a read out operation. When one of said first and second sensors is turned on before the time... | 02/13/1996 |
| 5470050 | Sheet stacking apparatus A sheet stacking apparatus has a shutter mechanism, having a shutter, for controlling the stacking and dropping operations of sheets to be stacked in a stacking safe. When a sensor detects that the sheets to be stacked on the shutter have been stacked to ... | 11/28/1995 |
| 5464204 | Paper feed controlling device A paper feed controlling device for a printer includes a feeding apparatus for feeding recording paper along a predetermined path. The size of the image to be printed with toner particles is determined. A detector determines the size of the paper as it tr... | 11/07/1995 |
| 5446670 | Error management system for errors in imbricated formations of printed products The system for error management for the further processing of an imbricated stream (S) of printed products has an observation element (1), which generates a measuring signal correlated with the imbricated stream. The measuring signal is interpreted clock ... | 08/29/1995 |
| 5444524 | Method and apparatus for controlling a print engine of a page printing device A method and apparatus for controlling a print engine of a page printer according to a position of printing paper are disclosed. The method includes a stand-by process for initializing each portion of the print engine to a printable state when a power sou... | 08/22/1995 |
| 5435543 | Motion indicating device for moving objects A motion indicating device used especially to monitor the movement of sheets of paper, which are moved via conveyor paths. A scanning device has a rotatably mounted scanning member, which lies on the scannable surfaces of the moving sheet of paper and is ... | 07/25/1995 |
| 5395106 | Sheet forwarding apparatus for determining causes of feeding defects A sheet feeding unit includes a sheet forwarding unit for forwarding sheets from a sheet storing unit, a key input portion, a sheet detection gate, and a control unit. In one embodiment, the sheet forwarding unit repetitively performs its function after a... | 03/07/1995 |
| 5335043 | Sheet misfeed and jam detection by measuring force exerted on feed rolls An apparatus to detect sheet misfeeds and jams in an electrophotographic printing machine by measuring the tangential reaction force of a sheet entering the nip between two drive rolls and comparing the measured force with preprogrammed parameters within ... | 08/02/1994 |
| 5313253 | Paper path signature analysis apparatus A sheet path velocity profile signature analysis apparatus which utilizes output from various idler rolls throughout the machine paper path to detect abnormalities. The constantly monitored and instantaneous velocity readings are compared with a base line... | 05/17/1994 |
| 5196868 | Image receiving sheet inversion sensing techniques The present invention relates to techniques for ensuring that an image receiving sheet, which has only one major surface thereof coated with an image receiving coating, is properly oriented prior to an image being printed thereon. The image receiving shee... | 03/23/1993 |
| 5116035 | Recirculating document feeder with sequential control of the document sheet transport mechanisms and method An improved recirculating document feeder for presenting sheets from a document sheet stack individually to a station of the reproduction apparatus for reproducing of information contained on such sheets. The improved recirculating document feeder compris... | 05/26/1992 |
