Abstract: A sheet take-out apparatus includes a first separation unit, a second separation unit, a drawing roller for drawing sheets from a nip of the second separation unit, and a pinch roller rotating in contact with it. Overlapping sheets which pass the first and second separation units and are not separated are detected to be overlapped in a state that they are clamped by the nip of the drawing roller and pinch roller. When overlapping is detected, in a state that the rear ends of the overlapping sheets in the conveying direction are restricted by the nip, the drawing roller and pinch roller are stopped and the overlapping sheets are re-separated.

Abstract: An image forming system includes a feed section, a transport section, a toner-image forming section, a fixing section, a problem detecting section, and an additional feed section. The feed section feeds a sheet. The transport section transports the sheet fed from the feed section. The toner-image forming section forms a toner image onto the sheet transported by the transport section. The fixing section fixes the toner image formed by the toner-image forming section onto the sheet. The problem detecting section detects a problem in a sheet transport operation. The additional feed section feeds an additional sheet from the feed section toward the fixing section if the number of sheets stopped by the transport section in accordance with detection of the problem by the problem detecting section and subsequently transported toward the fixing section after the sheet transport operation is resumed is smaller than a predetermined number.

Abstract: A sheet take-out apparatus includes a first separation unit, a second separation unit, a drawing roller for drawing sheets from a nip of the second separation unit, and a pinch roller rotating in contact with it. Overlapping sheets which pass the first and second separation units and are not separated are detected to be overlapped in a state that they are clamped by the nip of the drawing roller and pinch roller. When overlapping is detected, in a state that the rear ends of the overlapping sheets in the conveying direction are restricted by the nip, the drawing roller and pinch roller are stopped and the overlapping sheets are re-separated.

Abstract: A paper sheet conveying apparatus includes a paper sheet conveyance path, a conveyance sound detection portion, an abnormality correspondence information storage portion, and an abnormality specifying portion. The conveyance sound detection portion detects conveyance sound of a paper sheet on the paper sheet conveyance path. The abnormality correspondence information storage portion has stored therein abnormality correspondence information indicating correspondence relationships between contents of a plurality of types of sheet conveyance abnormalities that can occur on the paper sheet conveyance path, and contents of the conveyance sounds detected by the conveyance sound detection portion when the respective sheet conveyance abnormalities occur.

Abstract: There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium that suppress erroneous detection of occurrence of a jam by a sound due to a sound generated from the apparatus. The paper conveying apparatus includes a sound signal generator, provided with a sound detector near a conveyance path of paper, for generating a sound signal, a sound jam detector for determining whether a jam has occurred based on the sound signal output during a paper conveying operation, a control module for performing abnormal processing when the sound jam detector determines that the jam has occurred, and an abnormal sound detector for determining whether an abnormal sound has been generated based on the sound signal output before a paper conveying operation.

Abstract: There is provided a paper feeding device including: a microphone which detects sound occurred on a paper conveying path; a pre-processing unit which performs pre-processing on a signal of the sound detected by the microphone; and a jam detection unit which detects a jam of paper based on the sound signal on which the pre-processing is performed, a reference value about intensity of the sound, and a reference value about a duration time of the sound.

Abstract: A sheet take-out apparatus includes a first separation unit, a second separation unit, a drawing roller for drawing sheets from a nip of the second separation unit, and a pinch roller rotating in contact with it. Overlapping sheets which pass the first and second separation units and are not separated are detected to be overlapped in a state that they are clamped by the nip of the drawing roller and pinch roller. When overlapping is detected, in a state that the rear ends of the overlapping sheets in the conveying direction are restricted by the nip, the drawing roller and pinch roller are stopped and the overlapping sheets are re-separated.

Abstract: An image forming apparatus includes a sheet storage unit, a sheet feeding unit, a conveyance path for conveying a sheet to the image forming unit, a plurality of sheet detection sensors disposed along the conveyance path, a determination unit for determining whether predetermined time elapses from a detection of a front end of the sheet until a detection of a rear end of the sheet and a discharge unit. When the determination unit determines that the predetermined time has elapsed based on the detection by the sheet detection sensor disposed in the furthest upstream position among the plurality of sheet detection sensors, the sheet is discharged from the discharge unit, and when the determination unit determines that the predetermined time has elapsed based on the detection by the sheet detection sensors other than that disposed in the furthest upstream position, the sheet is stopped.

Abstract: When continuous-conveying control is executed in a conveying apparatus which can handle various sizes of sheet, a conveying apparatus which can efficiently detect a conveying error by a required minimum conveyed amount or conveying time according to a sheet size is provided. For that purpose, a maximum conveyed amount from start of sheet feeding of the subsequent page to determination to be a sheet-feeding error is set based on a detection result of a rear end portion on a previous page by a PE sensor. The maximum conveyed amount when the rear end portion of the previous page is detected is set smaller than the maximum conveyed amount when not detected.

Abstract: A sheet take-out apparatus includes a first separation unit, a second separation unit, a drawing roller for drawing sheets from a nip of the second separation unit, and a pinch roller rotating in contact with it. Overlapping sheets which pass the first and second separation units and are not separated are detected to be overlapped in a state that they are clamped by the nip of the drawing roller and pinch roller. When overlapping is detected, in a state that the rear ends of the overlapping sheets in the conveying direction are restricted by the nip, the drawing roller and pinch roller are stopped and the overlapping sheets are re-separated.

Abstract: The method includes determining whether or not the trailing end of the previous medium has reached a preliminary feed start position, if it is determined that the trailing end of the previous medium has reached the preliminary feed start position, determining whether or not the leading end of the subsequent medium has already reached a target position of the preliminary feeding operation, if the subsequent medium does not reach the target position, causing driving for the preliminary feeding operation so as to be performed, and when the preliminary feeding operation is performed, calculating a gap between the previous medium and the subsequent medium on the basis of a first value, and when the preliminary feeding operation is not performed, calculating the gap on the basis of a second value.

Abstract: An image forming apparatus with a double-face printing function is provided. The image forming apparatus includes an image forming unit, a sheet feeding path including a regular feeding path and a return-feeding path and capable of accommodating a plurality of recording sheets, a sheet-ejection controller to eject the recording sheet out of the sheet feeding path through a sheet outlet. The sheet-ejection controller controls a recording sheet closer to the sheet outlet in the direction of sheet-conveyance along the sheet feeding path to be ejected prior to a recording sheet further from the sheet outlet when cancellation of the print job is entered during a double-face printing operation, in which the images are formed on one side of N pieces of recording sheets continuously and the other side of M pieces of recording sheets thereafter, whilst M is smaller than or equal to N.

Abstract: A depinching mechanism including a frame, a star wheel assembly, a limiter arm, a rocker arm and a sensor is provided in present invention. Through the depinching mechanism the star wheel assembly is lifted from the first position to the second position when paper jam occurs, and thus depinched the media the user can clear the paper jam. And after that the star wheel assembly is lowered from the second position to the first position. The star wheel assembly remains in the first position in the normal printing process. Since when paper jam occurs the star wheel assembly is lifted by the depinching mechanism, the user can easily and conveniently remove the jammed paper. And thus, the depinching mechanism can facilitate the user to remove jammed paper when paper jam occurs in printer. Thus, the depinching mechanism can be used in printers to solve the paper jamming problems.

Abstract: An image forming apparatus having a sheet support is described. Using one or more configurations, the number of parts for the sheet support may be reduced.

Abstract: An information processing device to generate data pertaining to a document from electronic paper which has a display section to display and retain the document, and a memory to store document identification data, includes a document data storage unit which stores document electronic data, a communication unit which acquires document identification data from the electronic paper, a reading unit which scans the display section, a data extraction unit which extracts from the document data storage unit document electronic data corresponding to the document identification data, a difference processing unit which extracts a note image appended on a surface of the display section according to a difference between an image from the extracted document electronic data and an image of the scanned display section, and a data generation unit which associates data of the extracted appendix image and the extracted document electronic data, thereby generates data pertaining to the document.

Abstract: A sheet supplying unit that supplies sheets includes a sheet accommodation tray that accommodates the sheets in a stacked state, the sheets including a first sheet which is an uppermost sheet in the stack of the sheets and a second sheet which is immediately below the first sheet; a pick-up roller that conveys the sheets in a sheet conveying direction; a detection sensor that detects passage of the sheets and is disposed downstream of the pick-up roller in the sheet conveying direction; and a control unit that controls operations of the pick-up roller in accordance with outputs from the detection sensor.

Abstract: An image forming apparatus connectable to a first feed tray and a second feed tray includes an image forming unit, a feed path, and a detecting unit provided on the feed path to sense recording medium jam. An identifying unit identifies a feed path and a feed tray where recording medium jam has occurred as a jammed path and a jamming feed tray. A first determining unit determines whether the image forming apparatus is connected to the second feed tray. A second determining unit determines whether the second feed tray can feed a recording medium to the image forming unit. A feeding unit feeds a recording medium from the second feed tray to the image forming unit.

Abstract: An image forming apparatus according to an exemplary embodiment of the invention includes a registration roller and a control portion. The registration roller is disposed on an upstream side of an image forming portion in a sheet conveying direction to convey a sheet to the image forming portion. The control portion controls to convey the sheet toward the registration roller at predetermined timing after temporarily stopping the sheet at a plurality of stop positions. The plurality of stop positions is set on an upstream side of the registration roller in the sheet conveying direction. The control portion conveys the sheet at predetermined timing from one of the plurality of stop positions when the plurality of sheets is continuously conveyed to the image forming portion. One of the plurality of stop positions does not become continuously identical.

Abstract: A sheet feeding apparatus includes first and second sheet sensors provided in order from upstream to downstream sides in feeding direction on a paper feed path, sheet conveyor roller sets arranged along the path, and a roller controller individually controlling groups of rollers on the upstream and downstream sides of the first sheet sensor, in response to a change in values of output signals from first and second sheet sensors. The roller controller includes an overlapped feeding determining device outputting a determination signal assuming a first value when overlapped feeding occurs and a second value otherwise, in response to the change in values of the output signals from the sensors, an overlapped feeding eliminating device eliminating overlapped feeding by controlling the roller controller upon receiving the determination signal of the first value, and a conveyor roller stopping device stopping the sheet conveyor rollers if the overlapped feeding eliminating process should fail.

Abstract: An image forming apparatus includes a judging unit for judging as to whether paper jamming occurs in the medium feeding unit at a time that the paper jamming occurs in the medium conveyance route and a controller for controlling the medium positioned on an upstream side of the medium feeding unit to be conveyed into the medium feeding unit when judging that no paper jamming occurs in the medium feeding unit, to allow the feeding unit detaching from the apparatus body without tearing or breaking the jammed paper.

Abstract: A feeding device includes a feeding unit configured to be driven while being in contact with a recording sheet to feed the recording sheet, and a stacking unit configured to stack a plurality of the recording sheets and to press or release the stacked recording sheets to or from the feeding unit. Also, the feeding device includes a separating unit configured to separate the plurality of recording sheets fed by the feeding unit, one by one, a detecting unit configured to detect the recording sheet in an area downstream of the separating unit, and a control unit configured to control each of the units. The control unit switches a feeding operation between at least two feeding operations in accordance with a drive time of the feeding unit from when the feeding unit is started to be driven to when the detecting unit detects the recording sheet.

Abstract: The present invention provides an image processing apparatus which can promptly detect whether or not a jam has been removed in the case of occurrence of the jam such as a paper jam. A paper feeding apparatus 1b includes a paper feed tray 11, a pickup roller 61, a paper roller 63, a sorting roller 64, feeding rollers 66a, resist rollers 67, a paper ejection roller 73, a passage detection sensor 69, an overlapped feeding detection sensor 68 and a second detection apparatus 71. An image processing apparatus 100 includes a position detection portion 41 for detecting a location of a jam which occurs during feeding of recording paper, a determination portion 42 for determining a jam state based on a detection result of the position detection sensor 69, an examination portion 43 for examining whether the jam has been resolved and a resuming portion 44 for resuming the processing when an examination of the jam location by the examination portion 43 is finished.

Abstract: A sheet transporting device including: a sheet feeding section that feeds plural sheets to a transporting path; three or more roller pairs that are arranged along the transporting path; a double feed detecting section that detects a length of a double feed portion when sheets are fed in an overlapped manner; a selecting section that selects two of the three or more roller pairs based on the length of the double feed portion; and a transport control section that can change a transporting speed of at least one of the selected roller pairs, wherein the selecting section selects two roller pairs that have a space between which the double feed portion can be positioned, and the transport control section controls the transporting speeds of the selected roller pairs such that the speeds differ from each other to separate the delaying sheet from the preceding sheet.

Abstract: An image forming system that has an apparatus that receives recording media from an apparatus upstream from it, executes image formation processing, and conveys the recording media to an apparatus positioned downstream from it. The apparatus controls whether to continue conveyance of recording media, change their discharger, and accept recording media in accordance with condition of its own or the downstream apparatus regardless of the configuration of the entire system.

Abstract: A method of synchronizing the feeding and printing of sheets of media, i.e., paper, envelopes, post cards, etc. even though shingled feeds have occurred in the system. The foregoing is accomplished by utilizing two sensors and counters to monitor two sheets of paper to allow two software tasks to stay in synchronization and release the appropriate print data to the printer even when a sheet of paper was not detected in the feeder appears at the print head. The feeder sensor has a counter for its Lead Edge as does the Start of Print Sensor that is in the system's transport paper path. The feeder sensor counter and the start of print counter are incremented and decremented as the paper approaches the sensor and leaves the sensor. If the lead edge counter of the feeder sensor goes negative, then the feeder has shingled and the data for that sheet of paper must be printed.

Abstract: A paper-money receipt/payment machine comprises a conveyance path, on which paper sheet can be conveyed in dual directions, and a paper-money discrimination unit provided midway the conveyance path to discriminate the paper sheet. The machine further comprises a temporary holding unit for storage of rejected paper sheet to be rejected, and an exclusive storage box, separately provided from the temporary holding unit, for storage of jammed paper sheet. The exclusive storage box is arranged at one end or both ends of the conveyance path.

Abstract: A paper feeder includes a storage section, a feed path, a delivery section, and a receiving section. The storage section is configured to store therein plural sheet members to be fed to a processing apparatus which is operative to perform processing on the sheet members. The feed path allows each of the plural sheet members fed from the storage section to pass therethrough in a feed direction toward the processing apparatus. The delivery section is located most downstream on the feed path in the feed direction. The feed path is open to exterior in the delivery section. The receiving section is located upstream of the feed path in the feed direction for communication with a delivery section of a separate paper feeder having an identical construction with the present paper feeder when the separate paper feeder is disposed upstream of the present paper feeder in the feed direction.

Abstract: An object of this invention is to provide a convenient printing system applicable not only to the office environment but also to the POD environment. To accomplish this, a printing system capable of supplying a print medium to a printing apparatus from a plurality of feeding apparatuses each having a feeding unit for feeding a print medium, a multi feed detection unit for detecting occurrence of multi feed of overlapping print media, and a multi feed discharge unit for discharging multi-fed print media includes a multi feed discharge destination setting unit for, when the multi feed detection unit detects occurrence of multi feed, setting which of multi feed discharge units is to accept multi-fed print media, and a control unit for controlling the feeding apparatus to discharge the multi-fed print media to the multi feed discharge unit set by the multi feed discharge destination setting unit.

Abstract: A sheet take-out apparatus includes a first separation unit, a second separation unit, a drawing roller for drawing sheets from a nip of the second separation unit, and a pinch roller rotating in contact with it. Overlapping sheets which pass the first and second separation units and are not separated are detected to be overlapped in a state that they are clamped by the nip of the drawing roller and pinch roller. When overlapping is detected, in a state that the rear ends of the overlapping sheets in the conveying direction are restricted by the nip, the drawing roller and pinch roller are stopped and the overlapping sheets are re-separated.

Abstract: 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 media transport path; halts printing device components upstream from the given location in the media path while continuing to image picked media downstream from the given location in the media transport path; and, prompts the user to clear the detected media jam from the given location after all downstream media has been imaged.

Abstract: A sheet processing apparatus comprises an upper unit, a lower unit and a banding unit. When sheets being conveyed are jammed in the upper unit, the upper unit is stopped and the processes of the lower unit and the banding unit are continuously executed. After the upper unit is stopped, sheets that may possibly be conveyed into the lower unit by inertia are rejected in a safety pocket.

Abstract: An image forming apparatus according to the present invention enables a user to remove the printed papers from the finisher without the image forming apparatus mistakenly judging that a paper jam has occurred; and has effects including a preventing the occurrence of malfunctions such as a jammed staples and the like, a wasting of resources and time for unnecessary re-printing, and increasing usability of the image forming apparatus by allowing a user in a hurry to remove printed copies without affecting the performance of the image forming apparatus.

Abstract: A sheet processing apparatus comprises an upper unit, a lower unit and a banding unit. When sheets being conveyed are jammed in the upper unit, the upper unit is stopped and the processes of the lower unit and the banding unit are continuously executed. After the upper unit is stopped, sheets that may possibly be conveyed into the lower unit by inertia are rejected in a safety pocket.

Abstract: In a device for loading further-processing machines with printed products, in particular a feeder rack (5) in gather-stitcher machines or gathering machines (6) for folded sheets (1), sheets, booklets or the like, which has a first conveyor arrangement (15) extending in planar manner for the purpose of feeding printed products (1) standing on their edges in the form of a horizontal stack (2), a second, initially upwardly sloping conveyor arrangement (16) for drawing the printed products (1) off the stack (2) in an overlapping formation and for transferring the overlapping stream (3) to the feeder rack (5), and infinitely variable drives (20, 24) associated with the two conveyor arrangements (15, 16), a control means (23) is provided which controls the two drives (20, 24) at a speed ratio to one another which is dependent on the thickness (D) of the printed products (1) to be processed.

Abstract: A method of tracking a document in a system for feeding and transporting documents includes detecting a document trailing edge at a fixed location upstream of a feeder. The system includes a feeder stage and a transport stage downstream of the feeder stage. The feeder stage includes the feeder and a separator. The method further includes tracking a position of the document trailing edge as the document trailing edge moves between the fixed location and the feeder, and performing an operation dependent on the document trailing edge position when the document trailing edge is between the fixed location and the feeder.

Abstract: A method of document overlap/gap error detection and correction includes detecting a trailing edge of a first document at a feeder, and detecting a leading edge of a second document at an edge detector between the feeder and a transport stage. An overlap/gap error is determined and the feeder is controlled to correct the overlap/gap error, when the error is present. An overlap may be measured before the first document trailing edge arrives at the edge detector, providing a greater remaining length of the second document left in the feeder with which to perform the necessary feeder motions to correct the overlap/gap error.

Abstract: In a method for intermediately storing documents being supplied in a supply cycle by an upstream system to an intermediate storage device, the documents supplied by the upstream system to a downstream system are transferred in a transfer cycle that is independent of the supply cycle. The intermediate storage device for performing the method has an input side and an output side and a transport device for transporting the documents from the input side to the output side in a transport direction through the intermediate storage device. The transport device has a first transport unit and a second transport unit. The first transport unit is arranged at the input side and is configured to be continuously driven. The second transport unit is arranged at the output side and is driven in a cycled operation.

Abstract: The invention is to provide a paper feeding apparatus and a driving method thereof for an office machine. The office machine includes a paper accommodating device and a paper processing apparatus. The paper accommodating device is for accommodating paper sheets to be processed by the paper processing apparatus. The paper feeding apparatus is for feeding the paper sheets accommodated by the paper accommodating device one by one to the paper processing apparatus. The paper feeding apparatus includes a pickup roller, a delivery roller, a pair of feeding rollers, a detection device, a transmission gear assembly, a drive motor and a controller. The detection device detects a leading edge and a trailing edge of the paper sheet delivered by the paper feeding apparatus. In particular, the paper feeding apparatus is a simple-configuration, light-weight and compact component and capable of feeding paper sheets accurately.

Abstract: In the in-line processing of flat objects (S1-S7), the flat objects (S1-S7) are fed from a device (4) and serially transferred to a downstream system (5). In the system (5) the objects (S1-S7) are transported and, if necessary, temporarily collected. The temporary collection of specimens of the objects (S1-S7) occurs in a configuration with a pitch in the direction of transport which is smaller than the dimensions in the direction of transport of the objects (S1-S7) in question. Then collected objects (S1-S7) are moved away from each other, from that configuration, and further transported with mutual interspaces. Because the flat objects (S1-S7) are stored with a pitch less than the size in the direction of transport, a large number of objects (S1-S7) can be collected in a buffer portion (34, 35; 134; 234) of a small length. Because the objects (S1-S7) are stored with a pitch in the direction of transport, however, they can be readily moved away from each other.

Abstract: A substrate sensing mechanism is provided for use in a printer output bin. The sensing mechanism includes a flag having a shape such that when one or more substrates, which have been removed from the bin, are manually reinserted into the bin, the one or more substrates are directed beneath the flag without causing a substrate feed failure. The flag is also positioned and shaped so as to move to a full bin position when a portion of one or more curled substrates extends to or above a level of the substrate output path immediately adjacent the bin entrance.

Abstract: An apparatus separates printed media, especially letters or envelopes, which are disposed as stacks between a spring-mounted curved pressure plate and drive rolls as well as a guide plate inclined slightly to the rear. Cylindrical envelope surfaces of the drive rolls project through openings in the guide plate. The printed media are transported away to the side. Such an apparatus is used in mail processing systems for reliably pre-separating and separating the printed media with the lowest possible technical outlay and space requirement. The apparatus includes a pre-separating area with drive-roll combinations having different coefficients of friction and a common, separate drive with freewheeling as well as a separating area with separating elements, a sensor for detecting printed media, an ejection-roll pair on the outlet side and a common, separate drive.

Abstract: A stencil printer includes a printing drum which is rotated bearing thereon a stencil master, and a press roller which is pressed against the printing drum. A paper supply system supplies a printing paper to between the printing drum and the press roller so that the printing paper is conveyed pinched between the printing drum and the press roller. A paper supply controller controls the paper supply system so that the paper supply system supplies the printing paper to between the printing drum and the press roller at a first predetermined angular position of the printing drum for each rotation of the printing drum. The paper supply controller controls the paper supply system so that the printing paper supplied next by the paper supply system does not collide with the printing paper under printing when the printing paper is overlong.

Abstract: A low cost inverter apparatus of includes a dual positionable, multi-function gate and a stationary baffle that guides sheets toward catch or output trays or work in conjunction with reversible rolls to direct the sheets into a duplex path. The dual positionable gate and stationary baffle have points thereon that are positioned to use the beam strength of the sheets to align the sheets with a duplex nip that feeds the sheet into the duplex path.