| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 271256000 | With means to interrupt feeding | 85 |
| 20080211174 | MEDIUM PROCESSING APPARATUS - In a bill processing apparatus | 09-04-2008 |
| 20080224389 | Sheet abnormality detection apparatus and method - A sheet abnormality detection apparatus includes a plurality of abutting members which move upon coming into contact with at least one of sheets conveyed to overlap while being shifted from each other in a convey direction and an object attached to a sheet. The plurality of abutting members are disposed side by side in a direction perpendicular to a sheet convey direction. The apparatus also includes an abnormality detection unit which detects a sheet abnormality on the basis of a relative positional shift among the plurality of abutting members. A sheet abnormality detection method is also disclosed. | 09-18-2008 |
| 20080272537 | Sheet feeder for supplying a conveying arrangement with folded signatures - A sheet feeder for supplying a conveying device with folded signatures from a stack of folded signatures, the sheet feeder including a gripper drum. The gripper drum includes at least one gripper to individually remove respective signatures and a stopping device. The stopping device including a stop element to stop and align the signatures with the fold of the signatures in a forward direction. The sheet feeder includes an opening device to open the individual signatures, to deposit the signatures on the conveying device, and to reverse the forward direction of the signatures. The sheet feeder includes a delay element moving in the same direction as the gripper drum and at a conveying speed less than the gripper drum speed. A press-on device to press the signatures released by the gripper against the delay element and to slow down the individual signatures prior to the signatures hitting the stop element. | 11-06-2008 |
| 20090079128 | Paper Sorting Apparatus, and Method and Computer Readable Medium Therefor - A paper sorting apparatus includes a scanning unit configured to scan an image printed on a paper, a printing ratio determining unit configured to determine a printing ratio as a ratio of an area of the printed image as scanned by the scanning unit to a whole area on the paper with the printed image thereon, a classification determining unit configured to determine a recycling classification of the paper based upon the printing ratio determined by the printing ratio determining unit, and a sorting assist unit configured to assist sorting of the paper in accordance with the recycling classification of the paper determined by the classification determining unit. | 03-26-2009 |
| 20090079129 | PAPER CARRYING APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME - The paper carrying apparatus includes a first paper carrying mechanism (first carrying mechanism), a second paper carrying mechanism (second carrying mechanism) provided on the downstream of the first carrying mechanism in a carrying direction, an electric motor that drives the first carrying mechanism, a stepping motor that drives the second carrying mechanism, and an acceleration sensor that is a vibration detecting mechanism detecting vibration generated in the rotation shaft of the stepping motor. When the first carrying mechanism and the second carrying mechanism concurrently carry the same paper sheet, the electric motor is controlled in driving velocity based on information of vibration detected by the acceleration sensor at the timing of the rear end of the carried paper sheet passing the first paper carrying mechanism. | 03-26-2009 |
| 20090194937 | Paper-stopped linkage mechanism - A paper-stopped linkage mechanism, located at the upper cover of the office machine, includes a paper feeder mechanism, a paper stopper mechanism and a linkage. The paper feeder mechanism is movably located at the upper cover and has at least one paper-feeding roller. The paper stopper mechanism is movably located at the upper cover. The linkage is swingingly pivoted with the upper cover. The linkage has a first linking portion and a second linking portion. The first linking portion and the second linking portion are respectively connected with the paper feeder mechanism and the paper stopper mechanism. The paper feeder mechanism and the paper stopper mechanism are linked by the linkage and move in the opposite directions. Both the paper feeder mechanism and the paper stopper mechanism are located at the upper cover and are linked by the linkage so that the paper stopper mechanism can be driven immediately. | 08-06-2009 |
| 20100096802 | HIGH THROUGHPUT SHEET ACCUMULATOR - An improved sheet accumulator for stacking serially fed sheets transported on a paper path includes a guide deck. Above the guide deck, a plurality of parallel belts are positioned to provide a driving force for sheets on the deck. Within the accumulator, a ramp apparatus is positioned across the paper path whereby sheets driven by the belts on an upstream portion of the accumulator deck are driven over the ramp apparatus and deposited in an accumulating region of the accumulator deck on a downstream side of the ramp apparatus. Sheets are stopped by an accumulator stop mechanism located at a downstream end of the accumulating region that prevents movement of sheets by the belts while sheets for an accumulation are being collected. When an accumulation is completed, the accumulator stop mechanism allows sheets to be transported from the accumulating region. | 04-22-2010 |
| 20100127451 | SYSTEM FOR CONTROLLING FRICTION FORCES DEVELOPED ON AN ENVELOPE IN A MAILPIECE INSERTION MODULE - A system for controlling friction forces acting on a mailpiece in a mailpiece insertion module. The system includes at least one friction drive belt, a repositionable backstop assembly for arresting the motion of the envelope when disposed in a first position and permitting the conveyance along the feed path when disposed in a second position, an actuator operative to position the backstop assembly into the first and second positions and consuming energy to maintain the backstop assembly in the first position, a sensor for measuring the magnitude of energy consumed by the actuator; a means for developing a pressure differential across the envelope to urge the envelope into frictional engagement with the drive belts and for developing friction forces along a mating interface between the envelope and the friction drive surface, and a system controller, responsive to a sensed signal indicative of the energy consumed, for varying the magnitude of the pressure differential and the friction forces developed along the mating interface of the envelope. | 05-27-2010 |
| 20110316227 | RECORDING APPARATUS - There is provided a recording apparatus including: a first member having a first sliding surface formed into a comb shape along the direction of movement of an object; a second member having a second sliding surface formed into a comb shape opposing the first sliding surface of the first member with the intermediary of a viscous member, the second member sliding between a first position which causes a restricting member to be positioned at a restricting position and a second position which causes the restricting member to be positioned at the releasing position in a state of engaging the restricting member; and a urging device configured to apply an urging force which causes the second member to slide from the first position to the second position, the urging device being arranged at least partly between tips and roots of teeth of the comb shape of the second sliding surface. | 12-29-2011 |
| 20120018947 | IMAGE FORMING APPARATUS - An image forming apparatus ( | 01-26-2012 |
| 20120133095 | PAPER-STOPPING MECHANISM OF AUTOMATIC DOCUMENT FEEDER - A paper-stopping mechanism of an automatic document feeder is provided. The paper-stopping mechanism comprises an auxiliary gear, a traction member and a paper-stopping arm. As a paper pick-up arm of the automatic document feeder is moved upwardly or downwardly, the auxiliary gear is rotated in different directions. Upon rotation of the auxiliary gear, the auxiliary gear is engaged with a rack of the traction member to drive movement of the traction member. Consequently, a transverse rod of the traction member is sustained against the paper-stopping arm or raises the paper-stopping arm. When the transverse rod is sustained against the paper-stopping arm, the paper-stopping arm fails to be rotated in the paper-feeding direction, so that the function of stopping the paper is achieved. | 05-31-2012 |
| 20120133096 | SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS - The invention is directed to providing a sheet feeding apparatus including a stop mechanism configured to stop a sheet storage unit while the sheet storage unit is being drawn out from an apparatus main body, a stop release mechanism configured to release stop of the sheet storage unit by a stop mechanism and to enable detachment from the apparatus main body, a holding mechanism configured to hold a release state using the stop release mechanism of the stop of the sheet storage unit by the stop mechanism, and a return mechanism configured to release the holding of the release state of the stop mechanism by the holding mechanism while the sheet storage unit is being attached to the apparatus main body, and to return the sheet storage unit to a stop state using the stop mechanism. | 05-31-2012 |
| 20120299240 | PAPER-FEEDING MECHANISM FOR PRINTING APPARATUS - A paper-feeding mechanism for a printing apparatus includes a delay engaging member and an unidirectional engaging member. The delay engaging member has a first gear and a first coupling member installed on the first gear. The first coupling member rotates relative to the first gear. The unidirectional engaging member has a third gear installed on the first coupling member. When a sheet of paper is pulled out along a first direction, the first gear rotates along a second direction that is opposite to the first direction. The first coupling member rotates along the second direction together with the first gear. The first gear stops rotating. The third gear and the first coupling member rotate along the second direction until the paper(s) caught in the printing apparatus are pulled out. | 11-29-2012 |
| 20130056927 | MAILPIECE INSERTER INCLUDING SYSTEM FOR CONTROLLING FRICTION FORCES DEVELOPED ON AN ENVELOPE - A system for controlling friction forces acting on a mailpiece in a mailpiece insertion module. The system includes a backstop assembly for arresting the motion of the envelope when disposed in a first position and permitting conveyance along the feed path when disposed in a second position, an actuator operative to position the backstop assembly into the first and second positions and consuming energy to maintain the backstop assembly in the first position, a sensor for acquiring data indicative of the magnitude of energy consumed by the actuator; a means for developing a pressure differential across the envelope to urge the envelope into frictional engagement with a plurality of drive belts and for developing friction forces along a mating interface, and a system controller, for varying the magnitude of the pressure differential and the friction forces developed along the mating interface of the envelope. | 03-07-2013 |
| 20130221610 | Stacker - A stacking system for stacking paper from a linear feed. | 08-29-2013 |
| 20150008638 | SHEET FEEDING DEVICE, AND IMAGE READING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THIS - In a sheet feeding device, a feeding roller is driven and rotated to feed a sheet in a conveying direction of a sheet conveying path and a drive transmission mechanism transmits rotation drive force generated in a driving portion to the feeding roller. In this mechanism, a drive input gear having an inner space is arranged on a rotation axis supporting the feeding roller rotatably so as to rotate by the rotation drive force. A drive transmission gear arranged between the feeding roller and drive input gear on the rotation axis rotates and becomes slide-movable along the rotation axis between a first position transmitting the rotation drive force to the feeding roller and a second position cutting off the transmission of the rotation drive force to the feeding roller by the rotation drive force from the drive input gear to transmit the rotation drive force to the feeding roller. | 01-08-2015 |
| 20150061216 | MEDIUM TRANSPORT DEVICE AND RECORDING DEVICE - A medium transport device includes a restricting unit that is provided in a device main body, and that is coupled with an attaching and detaching operation of a unit body, which configures a portion of a transport pathway, to the device main body. The restricting unit changes between a first state that allows the cover to attain a closed state with respect to the device main body and a second state that restricts the cover from attaining a closed state with respect to the device main body. | 03-05-2015 |
| 20150307300 | PAPER MONEY TEMPORARY STORAGE DEVICE - A banknote temporary storage device includes a pair of coiling tapes configured to clamp banknotes to be temporarily stored, a large coiling block configured to temporarily store the banknotes by accommodating the coiling tapes which clamp the banknotes to be temporarily stored, an upper coiling block component and a lower coiling block component configured to release or roll up the coiling tapes, and a banknotes inlet/outlet. Each of the coiling tapes has one end fixed onto the large coiling block, and another ends of the coiling tapes are respectively fixed onto the upper coiling block component and the lower coiling block component. The banknote temporary storage device is further provided with a coiling block guide plate and a pressing body, therefore the banknotes can be flattened when passing between the coiling block guide plate and the pressing body, thereby preventing the corners of the banknotes from being folded. | 10-29-2015 |
| 20160156300 | MOTOR CONTROL DEVICE FOR CONTROLLING MOTOR IN DEPENDENCE ON MOTOR'S TEMPERATURE AND SHEET CONVEYING DEVICE | 06-02-2016 |
| 271258010 | Responsive to sheet sensor | 66 |
| 20080224390 | Multiple sheet detector apparatus and method - A detector for a deposit accepting apparatus of an automated banking machine or for another sheeting handling system includes an ultrasonic transmitter driven by a driving signal operative to cause the ultrasonic transmitter to transmit an ultrasonic sound signal through a sheet pathway of the detector. The detector also includes an ultrasonic receiver operative to generate a receiver signal responsive to the ultrasonic sound signal. The detector further includes first and second correlation filters. The first and second correlation filters are operative to generate first and second outputs responsive to the receiver signal. At least one processor is operative responsive to the first and second outputs of the correlation filters to determine information associated with changes in phase of the ultrasonic sound signal and to distinguish between single and multiple sheets in the pathway responsive to the information associated with changes in phase. | 09-18-2008 |
| 20080258380 | SHEET FEEDER - A sheet feeder has a feed passage and includes feed roller pairs, sensors, and a controller. The feed roller pairs are arranged along the feed passage and feed sheets of paper in a feed direction along the passage by nipping the sheets. Each of the sensors is fitted at or near one of the feed roller pairs and senses a specified point on each of the sheets when the sheet is nipped by at least the associated roller pair. The controller includes a memory for storing reference feed timings as proper feed timings at each of which the specified points on the sheets should pass one of the sensors. The controller finds the real feed timing when each of the sensors senses the specified point on the sheet nipped by at least the associated roller pair. When each of the sensors senses the specified point on the sheet nipped by at least the associated roller pair, the controller finds the time difference between the associated reference feed timing and the associated real feed timing and controls, according to the found time difference, the feed speed at which the feed roller pair or pairs nipping the sheet feed it. | 10-23-2008 |
| 20080290592 | Apparatus for Feeding Sheets to a Processing Machine and Method for Loading the Apparatus - An apparatus for feeding sheets made from paper, paperboard and the like to a processing machine, includes a stacking table with a delivery device, by way of which the sheets disposed upright on one of their edges are fed to a separating apparatus. The stacking table is divided and has a fixed part and a part mounted in such a way that it can pivot about a rotational axis. A method for feeding a stack or bundle of sheets into the apparatus is also provided. | 11-27-2008 |
| 20080309007 | SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS PROVIDED WITH THE SAME - A sheet processing apparatus, comprising: a sheet introduction port for feeding a sheet to inside from outside of the sheet processing apparatus; a sheet exit port for ejecting the sheet from inside to outside of the sheet processing apparatus; a sheet carrying part having a sheet carrying passage that communicates the sheet introduction port and the sheet exit port; a fold processing part disposed in a middle of the sheet carrying passage, for arbitrarily folding the sheet; a sheet stacking part that stacks the sheet ejected from the sheet exit port; and a detector that detects whether a height of a bundle of sheets stacked on the sheet stacking part reaches a prescribed height and outputs an OFF signal for turning off a drive of the sheet carrying part, wherein the detector performs detection at a first detection level for detecting the prescribed height of the bundle of sheets folded when the fold processing part is set in a drive state, and at a second detection level for detecting the prescribed height of the bundle of sheets not folded when the fold processing part is in a stop state, with the first detection level and second detection level differentiated from each other. | 12-18-2008 |
| 20080315511 | Feeding apparatus, and image forming apparatus incorporating feeding apparatus - A feeding apparatus including a feeding roller for conveying a sheet, a separation roller for conveying the sheet in a reverse direction, a transmission mechanism for transmitting the rotational force to the feeding roller, a limited force reverse transmission mechanism for transmitting the rotational force to the separation roller through a torque limiter, a forced reverse transmission mechanism for directly transmitting the rotational force to the separation roller, a temperature detector and a controller, wherein the controller controls the separation roller to receive rotational force through the forced reverse transmission mechanism after the limited force reverse transmission mechanism transmits the rotational force to the separation roller, then allows the limited force reverse transmission mechanism to transmit the rotational force to the separation roller, or to rotate the feeding via the transmission mechanism and the limited force transmission mechanism to transmit the rotational force to the separation roller. | 12-25-2008 |
| 20090001661 | SYSTEM AND METHOD FOR PROCESSING BATCHES OF DOCUMENTS - A method of processing documents by receiving at least a batch of documents and a separator card in an input receptacle of a document processing device. The separator card includes a conductive material disposed on one side, and a barcode indicative of the source of the batch of documents. The documents and separator card are transported via a transport mechanism past an evaluation unit and a field-effect sensor, respectively. The document processing device evaluates each document, determines whether the document meets or fails predetermined criteria, and detects the presence of the conductive material when a separator card is transported past the sensor. The source identification information from each separator card is entered into a memory of the document processing device after all the documents from the corresponding batch of documents have met the predetermined criteria. Feeder operation is paused between each batch long enough to verify that the previous batch closed successfully. Pausing feeder operation to address document anomalies before subsequent batches are processed promotes batch integrity and reduces operator confusion. | 01-01-2009 |
| 20090020946 | METHOD FOR DETECTING PAPER FEED SHINGLING ERRORS AND SYNCHRONIZING A PRINTER AND A FEEDER - 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. | 01-22-2009 |
| 20090039594 | IMAGE FORMING APPARATUS - An image reading apparatus includes a sheet feeding unit configured to sequentially feed a plurality of documents loaded on a document positioning plate, a reading sensor arranged in a conveyance path configured to read a document of the plurality of documents fed by the sheet feeding unit, an acquisition unit configured to acquire an interval of the document between a trailing edge of a preceding document and a leading edge of a next document conveyed through the conveyance path, and a reading unit configured to execute a first reading mode using the reading sensor to read the document conveyed at a first conveyance speed, and a second reading mode using the reading sensor to read the document conveyed at a second conveyance speed that is lower than the first conveyance speed, wherein the reading unit executes the second reading mode after the first reading mode when the interval of the document is less than a predetermined interval. | 02-12-2009 |
| 20090091076 | AUTO DOCUMENT FEEDER - An auto document feeder cooperated with an image processing machine defines a feeding path and has a base, a frame and a sensor device. The base has a background under the feeding path. The frame is mounted on the base. The sensor couples with the frame and has a sensor arm. The sensor arm has an optical sensor located in the feeding path and faced to the background of the base. The sensor device recognizes a sheet is present in the feeding path or not by that the optical sensor recognizes the energy of the light reflected from the background and the sheet. The sensor device also recognizes characteristic of the sheet by that the optical sensor recognizes the energy of the light reflected from the sheet. Therefore, the image processing machine executes different processes for the sheet according to the characteristic of the sheet. | 04-09-2009 |
| 20090160126 | PRINTING APPARATUS AND PRINTING MEDIUM FEEDING METHOD - To achieve a high-speed feeder, improvement of a rotational rate is required similarly in a feed motor and a conveyance motor, resulting in high costs. Moreover, in simultaneous control of paper feed and discharge, improvement of a conveyance rate leads to a high discharge rate to deteriorate alignment of discharged paper sheets. To solve the problems, the rate of the feed roller is set higher than the rate of the conveyance roller. The rate of the feed roller is determined based on the rate of the conveyance roller and an allowable amount of a loop formed by a rate difference between the two rollers. In the simultaneous control of paper feed and discharge, a distance between pages is detected by a sensor to determine whether the distance is sufficient, from the relation between current feed and conveyance rates. In the case of insufficient distance, the conveyance roller is stopped. | 06-25-2009 |
| 20100072695 | METHOD AND DEVICE FOR EJECTING DEFECTIVE SHEETS AT A FEEDER OF A PROCESSING MACHINE AND FEEDER HAVING THE EJECTING DEVICE - A method and a device for ejecting a defective sheet at a feeder of a processing machine, in particular a sheet-fed rotary printing machine, include a transporting device, which can be regulated independently of machine operation, for transporting a sheet identified as a defective sheet with deceleration in such a way that gripper devices of a cylinder cannot grip the sheet and the sheet is transported to a depositing location by the transporting device and a guide. A feeder of a sheet-fed rotary printing machine having an ejecting device, is also provided. | 03-25-2010 |
| 20110031682 | TRANSPORT SYSTEM - A method for controlling a variable speed transport system for moving a plurality of documentary items at a predetermined speed, acceleration and deceleration the method comprising: determining a mass of each pack of documents; using the determined mass to determine a maximum speed, acceleration and deceleration; and adjusting the predetermined speed acceleration and deceleration in dependence upon the determined maximum speed, acceleration and deceleration. | 02-10-2011 |
| 20110175282 | Sheet adjusting device, sheet holding receptacle incorporating same, and image forming apparatus incorporating same - A sheet adjusting device, applicable to a sheet holding receptacle and an image forming apparatus, includes a sheet setting plate to place a sheet thereon, first and second regulating member to slidably move in a given direction, a drive transmission mechanism to transmit a driving power generated by a driving power source to at least one of the first and second regulating members and move the first regulating member in the given direction, and a stopping unit to stop the first regulating member moving toward the sheet on the setting, plate either when a load exceeding a given threshold is given to either the driving power source or the drive transmission mechanism or when a pressure exceeding a given threshold is given to at least one of the first and second regulating members. | 07-21-2011 |
| 20110210502 | IMAGE FORMING APPARATUS - If a jam detecting portion detects a sheet jam, a rear end position of the jammed sheet is computed based on information, when a rear end of the jammed sheet is located within an area A | 09-01-2011 |
| 20110291353 | Image forming apparatus and control method therefor - An image forming apparatus for which a control method is performed includes a recording unit, a conveying device conveying a recording medium to the recording unit, a feeding device supplying the recording medium to the conveying device, a recording medium conveying pathway along which the recording medium travels, and a control device controlling the conveying device and the feeding device. A first partial length of the recording medium conveying pathway extending from the feeding device to the recording unit is shorter than a conveyance direction length of a maximum usable size recording medium. When the leading end of the recording medium is located between the conveying device and the recording unit after the conveying device is driven to convey the recording medium, the control device switches the feeding device from a driven state to a non-driven state to move the feeding device by the recording medium. | 12-01-2011 |
| 20120104690 | SHEET FEEDER AND IMAGE FORMING APPARATUS INCORPORATING SAME - A sheet feeder incorporatable in an image forming apparatus includes a sheet container to accommodate a sheet, a sheet feeding unit, a sheet conveyance member, a sheet conveying unit disposed downstream from the sheet feeding member in a sheet conveyance direction, and a controller to stop the sheet feeding unit before the sheet abuts against the sheet conveying unit and to resume the driving, and to drive the sheet conveying unit to start while rotating the sheet feeding unit. The controller adjusts a temporary stop period for the driving of the sheet feeding unit before the sheet abuts against the sheet conveying unit, according to a period in which the sheet passes first and second points determined optionally between a standby position determined prior to feeding of the sheet and a temporary stop position located before the sheet abuts against the sheet conveying unit. | 05-03-2012 |
| 20120139180 | SHEET MEASURING APPARATUS AND IMAGE FORMING APPARATUS - A sheet measuring apparatus includes a first rotating member that includes a first peripheral surface portion that contacts a transported sheet; a second rotating member that includes a second peripheral surface portion made of a material different from that of the first peripheral surface portion, the second peripheral surface contacting the first peripheral surface portion and not contacting the sheet; a first rotation amount detecting unit that detects a first rotation amount that is a rotation amount of the first rotating member; a second rotation amount detecting unit that detects a second rotation amount that is a rotation amount of the second rotating member, the second rotation amount being used for a calculation related to the transported sheet; and a fault detecting unit that detects a fault that has occurred in the first rotating member on the basis of the first rotation amount and the second rotation amount. | 06-07-2012 |
| 20130093136 | JAM SENSING AT DOCUMENT FEEDING STATION - A method for preventing damage to a document by a document transport apparatus provides a member for receiving the document as a stack of sheets to be serial fed to a feeding station. At least two spaced-apart microphones are disposed at the feeding station and responsive to audio to produce signals representing audio energy received by each microphone respectively. The energy received from each microphone is compared to determine if it is ambient noise or if it indicates that two attached sheets are being fed or a single sheet is being damaged. The document transport apparatus is shut off to prevent damage to documents when it has been determined that two attached sheets are being fed or that a single sheet is being damaged. | 04-18-2013 |
| 20130168923 | SHEET-CONVEYING DEVICE HALTING BRUSHED MOTOR IN DIFFERENT METHODS - A sheet conveying device includes a conveying path, a brushed motor, a motor drive unit, a conveying unit, a sensor, and a processor. The motor drive unit is configured to rotate and halt the brushed motor. The conveying unit is configured to convey a sheet along the conveying path by driving force of the motor. The sensor is configured to detect the sheet. The processor is configured to function as a halting unit configured to control the motor drive unit to halt the brushed motor in different methods depending on detection result of the sensor. | 07-04-2013 |
| 20130249165 | METHOD FOR MONITORING THE TRANSPORT OF BANK NOTES - A method for monitoring transport of bank notes in a transport system, using sensors arranged along the transport system for sensing transported bank notes, and a control device for monitoring and controlling the transport system using signals from the sensors, from which the control device derives a presence or absence of a bank note at the location of the respective sensor. The signals from all sensors are stored in a memory, and the signals from all sensors are assigned an explicit time statement or clock statement. All transported bank notes are assigned an explicit object code by the control device, and the object code is linked to the explicit time statement or clock statement. Stored signals from the sensors derive the occurrence and type of errors during the transport of the bank notes, and the signals are linked to the bank notes denoted by the object codes. | 09-26-2013 |
| 20130292899 | System and Method for Identification of Media Sheet Size - A printer extracts a media sheet from a plurality of media sheets in a media supply and moves the media sheet along a media path. A plurality of sensors on the media path generate signals as the media sheet moves past the sensors, and the printer identifies a cross-process direction dimension of the media sheet with references to signals generated by the sensors. The printer identifies the dimension of the print medium without requiring media size sensors in the media supply. | 11-07-2013 |
| 20140062008 | PAPER CONVEYING APPARATUS, RECOVERY METHOD, AND COMPUTER-READABLE, NON-TRANSITORY MEDIUM - There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium that can improve the user friendliness in recovery processing when a jam has occurred during conveyance of a paper. The paper conveying apparatus includes a sound signal generator for generating a sound signal, a sound jam detector for determining whether a jam has occurred based on the sound signal, a control module for stopping conveyance of a paper when the sound jam detector determines that the jam has occurred, a paper state detector for detecting a state of the paper, and a recovery processing module for performing recovery processing which resumes conveyance of the paper in accordance with a content of detection of the paper state detector when the sound signal generator outputs a predetermined sound signal after stopping conveyance of the paper by the control module. | 03-06-2014 |
| 20140062009 | PAPER CONVEYING APPARATUS, RECOVERY METHOD, AND COMPUTER-READABLE, NON-TRANSITORY MEDIUM - There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium that can improve the user friendliness in the recovery processing when determining that a jam has occurred during conveyance of a paper. The paper conveying apparatus includes a sound signal generator for generating a sound signal, a sound jam detector for determining whether a jam has occurred based on the sound signal, a control module for stopping conveyance of a paper when the sound jam detector determines that the jam has occurred, a paper state detector for detecting a state of the paper, and a recovery processing module for automatically performing a recovery processing which resumes conveyance of the paper in accordance with a content of the detection of the paper state detector after stopping the conveyance of the paper by the control module. | 03-06-2014 |
| 20140175739 | MEDIUM CARRYING DEVICE AND IMAGE FORMING APPARATUS - A medium carrying device includes a first pair of rollers that forms a nip part and carries a medium, the nip part being defined as an area where the rollers contact each other applying a pressure to other, a guide part that guides the medium to the first pair of rollers, and a medium detection member that includes a tip end part and a pivoting fulcrum and that is pivoted around the pivoting fulcrum by the medium as the medium moves along the guide part. In a case of being viewed from a roller axial direction of the first pair of rollers, the tip end part passes the nip part when the medium detection member pivots around the pivoting fulcrum as a center. | 06-26-2014 |
| 20140319764 | DRIVING FORCE TRANSMISSION DEVICE, MEDIUM TRANSPORT DEVICE, IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS - A driving force transmission device includes a first rotating portion having a first facing portion, and a second rotating portion having a second facing portion. The second rotating portion has an operation range partially overlapping with that of the first facing portion. A cushioning member is provided between the first facing portion and the second facing portion. The cushioning member is deformed by being applied with a pressure. The first rotating portion and the second rotating portion transmit a driving force in a state where the cushioning member is deformed by application of the pressure. | 10-30-2014 |
| 20140319765 | SORTING APPARATUS AND DETECTION METHOD - A sorting apparatus comprises a conveyance path, a first storage section, a detection section, a first roller and a control section. The conveyance path conveys a sheet. The first storage section stores the sheet conveyed through the conveyance path. The detection section detects whether or not the sheet conveyed in the conveyance path is in the detection target area of the conveyance path. The first roller is located at the downstream side of the detection target area of the detection section in a conveyance direction of the conveyance path, and rotates to convey the sheet in the conveyance path towards the first storage section. The control section reversely rotates the first roller when the conveyance path is recovered from a stop state so that the sheet in the conveyance path is moved for a distance from the first roller to the detection target area of the detection section. | 10-30-2014 |
| 20150061217 | Image Forming Apparatus Automatically Setting Noise Reduction - An image forming apparatus can exchange a sound reduction mode and a normal mode. The image forming apparatus includes a sound reduction sheet feed cassette, a normal sheet feed cassette, a sound reduction sheet feed cassette roller, and a normal sheet feed cassette roller. The sound reduction sheet feed cassette roller and the normal sheet feed cassette roller can exchange rotation speed to a slower speed than a normal paper feeding speed, In the sound reduction mode, the image forming apparatus performs one of a noise reduction high performance mode and a noise reduction low performance mode. In the normal mode, the image forming apparatus performs a high performance mode. | 03-05-2015 |
| 20150336759 | SHEET FEEDER - A sheet feeder includes a delivery roller that contacts a sheet on a sheet supply tray to deliver the sheet; a first detection sensor disposed upstream of the delivery roller so as to detect the sheet on the sheet supply tray; and a second detection sensor disposed downstream of the delivery roller so as to detect a leading end portion of the sheet on the sheet supply tray. The delivery roller is activated in a state where the first detection sensor detects the sheet on the sheet supply tray while the second detection sensor does not detect the leading end portion of the sheet on the sheet supply tray. Thus, all the actually feedable sheets placed on the sheet supply tray can be fed, thereby reducing a sheet setting failure on the sheet supply tray, which reduces trouble of performing a re-set operation. | 11-26-2015 |
| 20150368054 | IMAGE FORMING APPARATUS - An image forming apparatus performs a continuous printing job in a normal sheet interval mode as an initially setting mode when an arrival waiting control such as a feed retry control is not performed. In the normal sheet interval mode, a feeding action is performed such that a sheet interval between successive two sheets is set at a predetermined normal sheet interval during the continuous printing. When the initially setting mode is not maintained, the continuous printing is performed with switching the sheet interval mode to an extended sheet interval mode for performing the feeding action with an extended sheet interval which is longer than the normal sheet interval. | 12-24-2015 |
| 20160251183 | PAPER CONVEYING APPARATUS, JAM DETECTION METHOD, AND COMPUTER-READABLE, NON-TRANSITORY MEDIUM | 09-01-2016 |
| 271259000 | Plural sensors | 9 |
| 20090033028 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - A sheet processing apparatus includes a first detector configured to detect a leading edge of a sheet conveyed in a conveying direction, a second detector provided on a downstream side of the first detector in the sheet conveying direction to detect the leading edge of the sheet conveyed, a punching portion, in the downstream side of the first detector in the sheet conveying direction, to move in a sheet width direction crossing the sheet conveying direction and perform a punching process for the sheet, an edge detector configured to move in the width direction together with the punching portion and detect the edge of the sheet conveyed in the width direction, and a controller, on the basis of at least either of information of a conveying speed of the sheet and a sheet length in the conveying direction, when the edge detector starts movement in the width direction after the first or second detector detects the leading edge of the sheet, to judge whether the edge detector can detect the edge of the sheet or not, as a result of the judgment, selecting the detector positioned on the most downstream side in the conveying direction among the first and second detectors which can be used, and when the selected first or second detector detects the leading edge of the sheet conveyed, permitting the edge detector to start movement to detect the edge of the sheet in the width direction. | 02-05-2009 |
| 20090051107 | ADU TRANSPORT ROLLER DRIVING DEVICE, IMAGE FORMING APPARATUS, ADU TRANSPORT ROLLER DRIVING METHOD - An ADU transport roller driving device, an image forming apparatus and an ADU transport roller driving method, in which a phenomenon of a warp does not occur on a succeeding sheet, are provided. There are included one drive motor that drives plural transport rollers to transport sheets in an ADU, a first one-way clutch that transmits only rotation force of the drive motor in a forward direction to an entrance side transport roller disposed at an ADU entrance side in a sheet transport direction among the plural transport rollers, a second one-way clutch that transmits only rotation force of the drive motor in a reverse direction of an opposite direction to the forward direction to an exit side transport roller disposed at an ADU exit side in the sheet transport direction among the plural transport rollers, and an electromagnetic clutch capable of transmitting only the rotation force of the drive motor in the forward direction to the exit side transport roller. | 02-26-2009 |
| 20090066017 | PAPAER SHEET STORAGE DEVICE, AND CONTROL METHOD AND CONTROL PROGRAM FOR PAPER SHEET STORAGE DEVICE - A paper sheet storage device comprises paper sheet transporting units | 03-12-2009 |
| 20090166961 | IMAGE SCANNING APPARATUS AND IMAGE SCANNING METHOD - An image scanning apparatus includes a paper thickness detection unit arranged to detect a paper thickness of an original document based on a reception signal, and a multiple-feeding detection unit arranged to detect, based on the reception signal, whether or not the original document that is being transported has been multiply fed. Based on a detection result obtained by the paper thickness detection unit and the multiple-feeding detection unit, the transportation speed is adjusted. | 07-02-2009 |
| 20090189339 | SHEET FEEDING APPARATUS WITH MECHANISM FOR DETECTING SHEET FEEDING STATE AND SHEET FEEDING METHOD - 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. | 07-30-2009 |
| 20110210503 | PAPER SHEET PROCESSING DEVICE - A paper sheet or bill processing apparatus capable of reliably detecting a paper sheet or bill present in a traveling route. The paper sheet or bill processing apparatus includes: a motor for a paper sheet or bill conveyance mechanism which can be driven to convey a paper sheet or bill along a traveling route; a discharge sensor which detects whether or not the paper sheet or bill is present in the traveling route; and control means which carries out a redetection process to detect whether or not the paper sheet or bill is present in the traveling route again by the discharge sensor after the motor is driven if the paper sheet or bill is not detected by the discharge detection sensor in a detection process in a condition that driving of the conveyance mechanism is stopped. | 09-01-2011 |
| 20120119436 | SHEET CONVEYANCE DEVICE, AND IMAGE FORMING APPARATUS AND IMAGE READING UNIT INCLUDING SAME - A sheet conveyance device includes a loading section, a first conveyance member a separation section, a first sheet length detector to detect whether the sheet is longer than a predetermined length slightly longer than a specific sheet size in the sheet conveyance direction, a trailing-edge detector disposed downstream from the separation section, a leading-edge detector disposed downstream from the trailing-edge detector a distance smaller than the specific sheet size and from the first conveyance member a distance longer than the specific sheet size, and a controller. When the sheet is equal to or greater than the predetermined length, the controller starts sheet feeding when the trailing-edge detector detects the trailing edge of the sheet, and when the sheet is smaller than that, the controller starts sheet feeding when either the leading-edge detector detects the leading edge of the sheet or the trailing-edge detector detects the trailing edge thereof. | 05-17-2012 |
| 20150368056 | PAPER FEED DEVICE, AND DOCUMENT TRANSPORT DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A paper feed device includes a paper tray, a set-state sensor, a paper feed unit, and a control unit. The control unit checks an output from the set-state sensor each time before the start of the intermittent paper feed. In the case where no paper feed is detected even after the prescribed number of times of the intermittent paper feed, the control unit determines that a non-feed jam has occurred. In the case where it is detected that there is no paper on the paper tray before the number of repetition of the intermittent paper feed reaches the prescribed number of times, the control unit causes the paper feed unit to terminate the retry processing and determines that, with no paper on the paper tray, it is not the non-feed jam. | 12-24-2015 |
| 271261000 | Laterally spaced sensors (e.g., to sense misalignment) | 1 |
| 20090236799 | IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An image forming apparatus according to the present invention includes: a first sensor that is provided in a conveying path for a sheet and detects a first passage time of the sheet; a second sensor that is provided in a position different from a position of the first sensor in both a conveying direction of the sheet and a direction orthogonal to the conveying direction, and detects a second passage time of the sheet; a skew determining unit that calculates a skew amount of the sheet from a difference between the first passage time detected by the first sensor and the second passage time detected by the second sensor and determines occurrence of skew of the sheet on the basis of the skew amount; and a cause estimating unit that estimates, when the skew determining unit determines that the skew occurs, a cause of the occurrence of the skew. | 09-24-2009 |
| 271262000 | Excess-thickness sensor | 21 |
| 20080203654 | PAPER MULTI-FEED DETECTION APPARATUS AND PAPER MULTI-FEED DETECTION METHOD - A paper multi-feed detection apparatus and a paper multi-feed detection method are provided for preventing the detection capability from being deteriorated by a noise factor and improving the detection precision even where an area around the feeding path has no extra space in terms of the shape and there are many noise-generating factors because of a demand for a smaller size of the device. An ultrasonic transmission opening formed in one of two feeding guide plates is large so as to discharge outside a reflected wave which returns through the ultrasonic transmission opening, and an ultrasonic receiving opening formed in the other feeding guide plate is smaller than a receiving face area of a receiver for receiving the ultrasonic wave. | 08-28-2008 |
| 20080265499 | IMAGE FORMING APPARATUS - The paper thickness of a medium to be recorded is detected, and the pressurization force of a conveyance roller is controlled. When a thick paper is detected, the pressurization force of the conveyance roller is made high. When a normal paper or a thin paper is detected, the pressurization force of the conveyance roller is decreased or the pressurization is released. | 10-30-2008 |
| 20080284093 | SHEET TRANSPORTING DEVICE, AND AUTOMATIC DOCUMENT FEEDER AND IMAGE FORMING APPARATUS PROVIDED WITH THE SAME - 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 | 11-20-2008 |
| 20080303206 | Sheet feeding apparatus, image forming apparatus and sheet feeding method - A sheet feeding apparatus includes: a multiple-feed detecting section that detects recording sheets to be transported by plural rolls in a direction; a separating section that separates an uppermost sheet of the recording sheets from the other; a slippage detecting section that detects a slippage of the uppermost recording sheet with respect to a roll; and a transporting-speed reduction suppressing section that suppresses a transporting-speed of the uppermost recording sheet from reducing from a value, the separation section including: a transporting roll that transports recording sheets in a transporting direction; and a separation roll that is placed to be opposed to and to be press-contacted with the transporting roll through a recording sheet, the transporting-speed reduction suppressing section changing a separation torque of the separation roll according based on a result of detection by the multiple-feed detecting section and a result of detection by the slippage detecting section. | 12-11-2008 |
| 20090057995 | IMAGE FORMING APPARATUS WITH PAPER THICKNESS DETECTION UNIT AND IMAGE FORMING METHOD OF THE SAME - An image forming apparatus of an embodiment of the invention includes a paper feed cassette to contain a sheet on which an image is to be printed, a pair of conveyance rollers to nip and convey the sheet taken out from the paper feed cassette, a paper thickness detection unit that is provided downstream of the sheet conveyed by the pair of conveyance rollers and near a nip point between the pair of conveyance rollers, has a rotator brought into contact with the sheet, and detects a thickness of the sheet by a shift generated when the sheet contacts with the rotator, a register roller to align the sheet after the thickness of the sheet is detected by the paper thickness detection unit, and a print ejection mechanism that prints and fixes an image to the sheet passing through the register roller and then ejects it. | 03-05-2009 |
| 20090127776 | IMAGE FORMING APPARATUS - An image forming apparatus includes a recording head, a transport belt, a pressure device, a sheet detection device, an ejection/transport device, and a control device. The control device controls generating a first stop timing of the sheet transportation by the transport belt, at which first stop timing the transfer belt stops transporting the sheet, and that controls a predetermined delay time after which a second stop timing is generated, at which second stop timing the ejection/transport device stops transporting the sheet, and that shortens the delay time after the sheet detection device detects a trailing edge of the sheet. | 05-21-2009 |
| 20090243203 | DOUBLE-FEED DETECTION APPARATUS AND IMAGE FORMING APPARATUS - A double-feed detection apparatus includes a sensor configured to detect double feed of transfer materials conveyed along a conveying path, and a control unit configured to execute detection of the transfer material under conveyance plural times with the sensor, and to determine the double feed of the transfer materials based on detection results. The control unit determines a detection timing based on both a distance along the conveying path from the sensor to an image forming unit which forms an image on the transfer material and a length of the transfer material in the feed direction. | 10-01-2009 |
| 20100102505 | REMAINING SHEET VOLUME DETECTING APPARATUS AND IMAGE FORMING APPARATUS - A remaining sheet volume detecting apparatus includes a loading unit that loads a sheet; a moving unit that moves the loading unit to a feed position of the loaded sheet; a feeding unit that feeds the sheet from the loading unit; a sheet thickness detecting unit that detects a thickness of the sheet; a load thickness detecting unit that detects that thickness of the loaded sheet within the loading unit, gradually decreasing; and a remaining sheet volume calculating unit that calculates a remaining volume within the loading unit based on the certain load thickness detected by the load thickness detecting unit and the sheet thickness detected by the sheet thickness detecting unit, each time a sheet is fed by the feeding unit after the load thickness detecting unit detects that the thickness of the loaded sheet within the loading unit has reached the certain load thickness. | 04-29-2010 |
| 20110079953 | DOUBLE FEEDING DETECTION APPARATUS, AUTO SHEET FEEDER AND DOUBLE FEED DETECTION METHOD - A double feed detection apparatus includes a first element and a second element at positions where they are opposite to each other across a sheet, and a direction in which an ultrasonic wave or a light passes through the sheet is vertical to a conveyance direction of the sheet. An auto sheet feeder includes the first element and the second element of the double feed detection apparatus in a range from a downstream side of a joining point of an outside conveyance path and an inside conveyance path in the sheet conveyance direction to a near side of a read part. | 04-07-2011 |
| 20120025458 | APPARATUS AND METHOD FOR DETECTING ARTICLE MULTIFEED IN A PREDEFINED REGION OF A FLAT ARTICLE - A document processing device capable of detecting a multifeed condition is configured to determine criteria of the multifeed or condition. If a detected multifeed meets the criteria, a detection of the multifeed or condition may be ignored. | 02-02-2012 |
| 20120217700 | SHEET FEEDER AND IMAGE FORMING APPARATUS - A sheet feeder includes a loading surface, a supply roller configured to feed recording sheets loaded on the loading surface, an overload prevention member disposed upstream from the supply roller in a sheet feed direction, and a movable member disposed downstream from the overload prevention member in the sheet feed direction. The overload prevention member includes a restriction surface configured to be moved between a first position and a second position. The movable member is configured to be moved from a third position to a fourth position by being pushed by leading ends of the recording sheets. The movable member and the overload prevention member are configured to interlock each other such that, when the movable member is in the third position, the restriction surface is in the first position, and when the movable member is in the fourth position, the restriction surface is in the second position. | 08-30-2012 |
| 20120248690 | DEPINCHING MECHANISM FOR PAPER JAM REMOVAL IN PRINTER - A depinching mechanism including a frame, a star wheel assembly, a transmitting device and a sensor is provided in present invention. Through the transmitting device rotating reversely, the star wheel assembly is lifted to the second position when paper jam occurs, thus depinched the media so that user can clear the paper jam. After that the star wheel assembly is lowered to the first position again. The star wheel assembly remains in the first position in normal printing process. Using a one-way clutch and a cam with an outer predetermined profile, the transmitting device rotates forwardly without transmitting any torque during normal printing process, and rotates inversely with transmitting a torque to lift the star wheel assembly up and lower the star wheel assembly down when paper jam occurs. Thus, the depinching mechanism can be used in printers to auto fix the paper jamming problems. | 10-04-2012 |
| 20130140766 | Combined Ultrasonic-Based Multifeed Detection Method And Sound-Based Damage Detection Method - A method for feeding sheets through a sheet transport path. Ultrasonic energy is directed toward a sheet in the transport path while an audio receiver detects audio data generated by the ultrasonic source and the mechanisms that transport the sheet. The audio data is processed to determine whether a multifeed or a misfeed condition exists in the transport path. | 06-06-2013 |
| 20130300056 | IMAGE FORMING APPARATUS AND SHEET RECONVEYANCE PROPRIETY DISCRIMINATING METHOD - Provided is a technology capable of identifying presence/absence of buckling at an occurrence of a jam and determining more appropriately whether or not to perform automatic sheet discharge. A sound collecting device provided on a conveying path of an image forming apparatus is used to collect sound generated from a sheet at the occurrence of the jam. Generated spectrum data is obtained by analyzing characteristics of the collected sound. The generated spectrum data is compared with reference spectrum data, to thereby identify the presence/absence of the buckling and discriminate the conveyance propriety of the sheet. | 11-14-2013 |
| 20140091516 | MULTI-FEED DETECTION APPARATUS, SHEET CONVEYANCE APPARATUS, AND SHEET PROCESSING APPARATUS - A multi-feed detection apparatus may include an ultrasonic transmission unit, arranged on one side of a conveyance path configured to convey a sheet-like member, for transmitting an ultrasonic wave toward the conveyance path, an ultrasonic reception unit, arranged on the other side of the conveyance path, for receiving the ultrasonic wave from the ultrasonic transmission unit, and a multi-feed determination unit for determining, based on the reception result of the ultrasonic wave received by the ultrasonic reception unit, whether multi-feed of sheet-like members has occurred. The ultrasonic transmission surface of the ultrasonic transmission unit is inclined with respect to the conveyance path, and the ultrasonic reception surface of the ultrasonic reception unit is arranged to be almost parallel to the conveyance path. | 04-03-2014 |
| 20140327207 | SHEET CONVEYING DEVICE, IMAGE FORMING APPARATUS INCORPORATING SAME, AND METHOD OF CONVEYING A SHEET IN THE IMAGE FORMING APPARATUS - A sheet conveying device, which is incorporated in an image forming apparatus, includes a fixing device to fix an image to a sheet, a holding/conveying belt device having a plurality of belts to sandwich and convey the sheet to a downstream side from the fixing device, and a first sheet detector to detect whether the sheet exists in the belt device. When the sheet is detected at a paper jam, the fixing device and the belt device are continuously driven. When not detected, driving of the fixing device and the belt device is stopped. A method of conveying the sheet includes detecting the paper jam in the image forming apparatus, detecting the sheet in the belt device or between the fixing device and the belt device, and continuing at least one of the belt device and the fixing device based on a sheet detection result. | 11-06-2014 |
| 20150336758 | IMAGE FORMING SYSTEM AND IMAGE FORMING APPARATUS - An image forming system according to the present invention includes a jam detection unit | 11-26-2015 |
| 20160376116 | SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME - A sheet feeding device includes a sheet feeding tray, a first moving assembly, and a second moving assembly. The sheet feeding tray accommodates a sheet. The first moving assembly moves the sheet feeding tray in a sheet feeding direction. The second moving assembly moves the sheet feeding tray in a direction intersecting with the sheet feeding direction. | 12-29-2016 |
| 271263000 | To activate an electric circuit | 3 |
| 20080197562 | SHEET FEEDING DEVICE - A sheet feeding device includes a driven roller that rotates in response to movement of a sheet, and a rotary encoder that detects a moving distance of the sheet based on rotation of the driven roller. The driven roller and the rotary encoder are connected by a gear unit having backlash. When the sheet moves in a reverse direction and thereby the driven roller rotates in reverse, the rotary encoder does not detect the moving distance of the sheet. | 08-21-2008 |
| 20080251999 | IMAGE FORMING APPARATUS - An image forming apparatus includes a first detecting portion having an abutting portion arranged so as to abut the top surface of sheets on a sheet tray and outputs a signal for determining the presence or absence of the sheets, and a second detecting portion having an abutting portion arranged so as to abut the top surface of the sheets and outputs a signal which determines according to the position of the abutting portion whether the position of the top surface of the blown up sheets is located in a predetermined position. During the sheet feeding operation, the signal which determines that the sheets are absent is input from the first detecting portion to a controller and the signal determining that the top surface of the sheets is located in a predetermined position is not input from the second detecting portion, the controller does not determine that the sheets are absent. | 10-16-2008 |
| 20080272538 | Configuration for Detecting a Physical Parameter at a Stack of Sheets Lying on Top of One Another - A configuration for detecting a physical parameter at a stack of sheets resting on top of each other obtains signals from inside a stack in a wireless manner. At least one sensor that responds to changes in the parameter, is disposed between two sheets in the stack and is connected to a stationary evaluation unit. The sensor and the evaluation unit are connected by a wireless connection. | 11-06-2008 |
| 271258020 | Interrupts feeding upstream only | 1 |
| 20120248688 | DEPINCHING MECHANISM FOR PAPER JAM REMOVAL IN PRINTER - 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. | 10-04-2012 |
| 271258030 | Single sensor with timer | 3 |
| 20090200734 | Image-Forming Device for Suppressing Internal Temperature Rise When Sheet-Feed Error Occurs - An image-forming device, such as a laser printer, includes a sheet-feed section, an image-forming section, a thermal fixing section, a control section, and a sheet-feed error detecting section. The sheet-feed section is configured to feed a sheet of paper to a sheet conveyance path. The image-forming section is disposed along the sheet conveyance path and configured to form a toner image on the sheet of paper. The thermal fixing section is disposed downstream of the image-forming section with respect to a direction in which the sheet of paper is fed and configured to thermally fix the toner image on the sheet of paper with a predetermined temperature. The control section is configured to control temperature of the thermal fixing section. The sheet-feed error detecting section detects a sheet-feed error which may occur in the sheet-feed section and outputs an error detection signal indicative of occurrence of the sheet-feed error. With the image-forming device thus configured, the control section changes the temperature of the thermal fixing section in response to the error detection signal. | 08-13-2009 |
| 20120248689 | IMAGE FORMING APPARATUS WITH ACCURATE SHEET CONVEYANCE - An image forming apparatus, including: a conveyor mechanism; a motor driver; and a controller for implementing a sheet-conveyance related control by execution of motor control processing in which a control input for a motor is calculated, wherein the controller implements the motor control processing in each sheet conveyance operation such that the control input is repeatedly calculated for conveying the sheet to a target stop position and for keeping the sheet located at the position, and wherein, in the motor control processing, the controller calculates the control input such that, after the sheet has reached the target stop position, the control input is equal to a hold control input required for keeping the sheet located at the position and such that, at a start point of the processing, the control input is not smaller than the hold control input in the processing in a previous sheet conveyance operation. | 10-04-2012 |
| 20140284877 | MEDIUM FEEDING APPARATUS - A medium feeding apparatus includes an opening/closing unit (a lock shaft, a lock arm, a hopper, a link member, and a rotating member) that performs an opening operation in a direction in which rollers of each of a separator and a conveyor coming into press contact with each other are separated from each other at the time of the occurrence of a conveyance error of a medium and performs a closing operation in a direction in which the rollers come into contact with each other after the recovery of the conveyance error. When an operator is present around the medium feeding apparatus, an error release operation control unit controls the opening/closing unit so that the opening/closing unit performs the opening operation and the closing operation at a relatively low speed as compared to when the operator is not present around the medium feeding apparatus. | 09-25-2014 |
| 271258040 | Sensor operates warning indicator | 1 |
| 20100019444 | SHEET PROCESSING SYSTEM, SHEET PROCESSOR AND ABNORMAL-TRANSPORTATION CORRECTION METHOD - The sheet processing system includes: an image forming unit forming an image on a sheet; a sheet stack unit that lowers along a moving route, as more sheets are stacked on the sheet stack unit, the sheets each having an image formed by the image forming unit and being transported through a first route; a processing unit provided in a housing, and applying processing to a sheet having an image formed by the image forming unit, the sheet being transported through a second route; a cover member provided so that a part of the housing is openable, partially reaching a position in the moving route when the part is opened, and allowing a user to operate the processing unit by opening the part; and a moving unit moving the sheet stack unit to a position where the sheet stack unit does not interfere with the cover member, upon abnormal transportation. | 01-28-2010 |
| 271258050 | Mechanical linkage | 1 |
| 20100078882 | Sheet Feeder and Document Scanning Device Provided with the Same - A sheet feeder includes a feed tray receiving sheets, a catch tray receiving the sheets ejected thereon, a feeding mechanism conveying the sheets from the feed tray to the catch tray, an ejection mode switching mechanism switching an ejection mode between a first mode in which the sheets are sequentially ejected on a stack of sheets already ejected and a second mode in which the sheets are sequentially ejected and inserted under a stack of sheets already ejected, an ejection detecting sensor detecting a sheet ejected on the catch tray, and a controller configured to, in response to an instruction to start feeding the sheets, forbid driving the feeding mechanism when determining that the ejection mode is set to the second mode and determining with the ejection detecting sensor that a sheet is on the catch tray. | 04-01-2010 |
