Patent application number | Description | Published |
20080211162 | SHEET ALIGNMENT MECHANISM, SHEET POST-PROCESSING APPARATUS, AND IMAGE FORMING APPARATUS - A sheet alignment mechanism includes a stacking tray on which a sheet or sheet bundle transported along a sheet transport path is stacked, a pair of side fences that are movable in a sheet width direction and align edges of the sheet or sheet bundle, stacked on the stacking tray, in the sheet width direction, a single drive source that moves the side fences, and detecting units that detect home positions of the respective side fences. | 09-04-2008 |
20080217837 | Sheet conveying device, sheet processing apparatus, and image forming apparatus - A sheet conveying device in which at least a sheet is guided and conveyed by a guiding member includes a discharging roller that conveys the sheet, a first guiding member and a second guiding member that are arranged along an outer periphery of the discharging roller, and a supporting shaft that rotatably supports both the first guiding member and the second guiding member. When the first guiding member is located at a first position in which a path between the first guiding member and the discharging roller is closed, the sheet is guided to a shift conveying path, and when the first guiding member is located at a second position in which the path is opened, the sheet is guided to a folding processing tray. | 09-11-2008 |
20080224386 | Sheet conveying device, sheet finisher, sheet feeding device, image forming apparatus, and sheet conveying method - A sheet conveying device includes entrance rollers and registration rollers. The entrance rollers convey a sheet received from delivery rollers to the registration rollers. The registration rollers correct skew of the sheet. A conveying path between the delivery rollers and the registration rollers is equal to or slightly longer than a length of a sheet in a maximum allowable size for skew correction in a conveying direction in which the sheet is conveyed on the conveying path. | 09-18-2008 |
20080236351 | Punching device, conveying device, finishing device, and image forming apparatus - A punching device includes a detecting unit, a punching unit, a moving unit, a storage unit, and a controlling unit. The detecting unit detects a lateral edge position of a recording medium to obtain edge position data. When the edge position data does not indicate an error value, the edge position data is stored in the storage unit as reference data. The controlling unit determines, when the edge position data indicates an error value, a movement amount of the punching unit based on reference data previously obtained and stored in the storage unit. The moving unit moves the punching unit by the movement amount in a direction perpendicular to the conveying direction of the recording medium. | 10-02-2008 |
20080290830 | Stepping motor driving device, sheet processing device, and image processing apparatus - A stepping motor driving device drives a stepping motor according to a drive pulse of a step signal. A phase matching unit matches, at a time when there is a possibility that a rotor and a phase signal are out of phase with each other, phases of the rotor and the phase signal by applying at least one drive pulse after energizing the stepping motor for a predetermined time and applying a phase signal having a predetermined duration for a final pulse. | 11-27-2008 |
20090014939 | Sheet post-processing apparatus, image forming apparatus, and image forming system - A sheet post-processing apparatus includes a sheet stacking unit, an aligning unit, a moving member, a discharging member, and a discharging motor. The discharging motor drives the discharging member for discharging a pile of sheets in an operation pattern that is selected, depending on a predetermined condition, from among a plurality of operation patterns. | 01-15-2009 |
20090014949 | Sheet post-processing apparatus, image forming apparatus, and image forming system - A sheet post-processing apparatus includes a sheet stacking unit, a moving member, and a discharging member. The moving member moves up the pile stacked on the sheet stacking unit to one of a plurality of scooping positions, and the discharging member receives the pile from the moving member at the one of the scooping positions and scoops up the pile by supporting a bottom edge of the pile for discharging the pile out of the sheet stacking unit. | 01-15-2009 |
20090039593 | SHEET PROCESSING APPARATUS AND IMAGE FORMING APPARATUS - A sheet processing apparatus and associated method are provided. The sheet processing apparatus includes a sheet conveying path, a sheet stack tray, a sheet discharging member, a sheet guide member, and a sheet contact portion. The sheet conveying path is configured to convey a sheet, the sheet discharging member discharges the sheet to the sheet stack tray, and the sheet stack tray receives the sheet. The sheet guide member is movable from a first position that guides the sheet discharged from the sheet discharging member to a second position that opens a sheet discharge path of the sheet discharging member. The sheet contact portion is arranged at an upstream side of the sheet discharging member with respect to the sheet conveying path, and responds to the sheet conveyed through the sheet conveying path in order to move the sheet guide member between the first and second positions. | 02-12-2009 |
20090051100 | Paper transport device, paper processing apparatus, and image forming apparatus - A paper transport device is configured to independently drive a paper ejecting roller when predetermined abnormal events occur. When paper-jamming occurs and if no paper is present downstream of a jammed paper or a preceding paper that is present most downstream is located upstream of a predetermined position, the paper ejecting roller is stopped to prevent ejection of papers outside of the paper transport device. When paper-jamming occurs and if a preceding paper that is present most downstream is located downstream of the predetermined position, the paper ejecting roller is independently driven to complete ejection of the preceding paper. | 02-26-2009 |
20090057978 | Sheet processing device, image forming apparatus, and image forming system - A sheet processing device includes a sheet aligning unit that aligns a sheet recording medium. The sheet aligning unit is configured to be pulled out from a main body of the sheet processing device, and includes a sheet conveying member for conveying the sheet recording medium. | 03-05-2009 |
20090060604 | Home-position detecting method, sheet processing device, and image forming apparatus - A processing unit performs a predetermined processing on a sheet in a process of carrying the sheet. A home-position detecting unit detects a home position of a moving member of the processing unit by detecting a part of the moving member using a detecting unit. The home-position detecting unit sets in advance a detection range for recognizing the home position, and when a part to detect the home position is detected in a state in which the moving member is stopped, sets a detection position as the home position by assuming that the detection position is in the detection range without moving the moving member once out of a detection range of the detecting unit. | 03-05-2009 |
20090066001 | Sheet processing device and image forming apparatus - A pressing unit presses vicinity of a trailing edge of a stack of sheets stacked in a tray. An aligning unit aligns the stack of sheets stacked in the tray. A stapling unit binds the stack of sheets aligned by the aligning unit. A discharging unit discharges the stack of sheets bound by the stapling unit. A control unit controls the pressing unit to keep a constant distance from a surface of a top sheet of the stack of sheets when the discharging unit discharging the stack of sheets. | 03-12-2009 |
20090066003 | Sheet aligning device and image forming apparatus - A sheet aligning device includes a sheet feeder that discharges a sheet in a first direction, a sheet tray on which the sheet is stacked, a sheet jogger that aligns the sheet on the sheet tray in a second direction perpendicular to the first direction, and a sheet detection filler that detects a state of the sheet on the sheet tray. The sheet detection filler detects a position of a topmost sheet in the stack of sheets on the sheet tray and determines an alignment position from where the sheet jogger is to begin alignment of the sheets. | 03-12-2009 |
20090137374 | Sheet finisher, image forming apparatus, and sheet processing method - A folding unit folds a sheet. A pressing unit presses a folded side of the folded sheet. A driving unit causes the pressing unit to slide in a direction perpendicular to a sheet conveying direction. A control unit independently sets number of slides at which the pressing unit is to slide on each of a plurality of sections of the folded side depending on a distance of each of the sections from a reference position, and controls the driving unit so as to slide in each of the sections for the number of slides set for that section. | 05-28-2009 |
20090152789 | Sheet creaser, sheet conveyer, sheet finisher, and image forming apparatus - In a sheet creaser, when a sheet is conveyed to a folding unit by a conveyer unit, the folding unit folds the sheet and a pressing unit presses the folded sheet by sliding in a direction substantially perpendicular to a sheet conveying direction. A switching unit switches the conveyer unit between a first position to convey the sheet and a second position unable to convey the sheet. A driving unit drives both the switching unit and the pressing unit. | 06-18-2009 |
20090200725 | Sheet creaser, sheet conveyer, sheet finisher, image forming apparatus, and sheet creasing method - A pressing unit includes a pressure roller that slides on the folded side while rotating, an elastic biasing unit that presses the pressure roller in a thickness direction of the stack of sheets, and a driving unit that slides the pressure roller in a direction substantially perpendicular to a conveying direction of the stack of sheets. A lifting unit, when the pressure roller slides to a first position, temporarily lifts up the pressure roller, and when lifted-up pressure roller slides to a second position, lifts the lifted-up pressure roller down onto the folded side. | 08-13-2009 |
20090206547 | Sheet conveying device, sheet punching device, sheet processing device, image forming apparatus, and method for determining mounting state of measuring unit - A sheet conveying device includes a conveying unit that conveys a sheet in a sheet conveying direction; a measuring unit that measures a position of a side edge of the sheet in a measurement area; a shielding unit having an end portion that is projected into the measurement area for shielding the sheet; a first determining unit that determines whether the shielding unit is detectable in the measurement area; and a second determining unit that determines whether the measuring unit has been mounted in the sheet conveying device based on a result obtained in the first determining unit. | 08-20-2009 |
20090258774 | Sheet creaser, sheet finisher, image forming apparatus, sheet folding method, and computer program product - In a sheet creaser, a sheet set is pushed between a pair of folding rollers to fold the sheet set. Then, a re-pressing roller re-presses the sheet set, which has been folded by the folding rollers, by rolling along the crease. Pressure applied on the sheet set by the folding rollers is released when the re-pressing roller re-presses the sheet set. | 10-15-2009 |
20090283961 | Sheet Stacking device, Drive control method, and computer program product - A sheet stacking unit that stacks sheets thereon is movable up and down. A lifting unit moves the sheet stacking unit up and down. A driving unit drives the lifting unit. A control unit controls a driving speed of the driving unit. A position detecting unit detects a position of the sheet stacking unit in an up-and-down direction. The control unit controls the driving speed according to the position of the sheet stacking unit detected by the position detecting unit. | 11-19-2009 |
20100148417 | Sheet aligning apparatus, sheet processing apparatus, and image forming apparatus - A sheet aligning apparatus includes an alignment surface formed in a planar shape and that presses an end of a sheet to move and align the sheet; and a holding unit that holds the end of the sheet at a position contacting the alignment surface in a state that a curled end of the sheet contacts the alignment surface and the sheet is thus pressed. | 06-17-2010 |
20110184889 | Image forming system - An image forming system includes: an image forming unit that forms an image on a sheet including a mail; a size recognizing unit that recognizes a size of the mail on which the image is formed by the image forming unit; and a postage calculating unit that calculates the postage of the mail, on the basis of a signal output from the size recognizing unit. | 07-28-2011 |
20110220557 | Image forming system - An image forming system includes an SSP unit (sorting guide portion and envelope chuck portion) that functions as an enclosing unit or an enclosing device to enclose, in envelopes, paper on which an image is formed by a copy machine functioning as an image forming device, a weight measuring device that includes a load cell to measure the weight of the paper-enclosed envelopes, and a sorting device that sorts the paper-enclosed envelopes, on the basis of weight data of each of the paper-enclosed envelopes of which the weight is measured by the weight measuring device. | 09-15-2011 |
20110277418 | Recording media sheet processing system, image forming system including same, and insertion method used therein - A recording media sheet processing system includes a folding device including a folding unit to fold a sheet and a squeezing unit to squeeze the folded sheet, an insertion device to insert in an envelope an enclosure, and a controller. The folding device. The controller includes an envelope selector, a selector for selecting whether to fold the sheet and a folding style of the sheet, a first storage unit for storing a folding-related equivalent quantity into which a quantity of each sheet is converted corresponding to the folding style and the number of times the sheet is squeezed, a second storage unit for storing a maximum quantity of sheets insertable, a calculator to calculate a total converted quantity of the enclosure, a determination unit to determine whether the selected envelope type accommodates the enclosure, and a squeezing setter to set the number of times of squeezing. | 11-17-2011 |
20120131885 | INSERTION SYSTEM AND INSERTION METHOD - An insertion system includes an enclosure supply device, an envelope supply device, an insertion device to insert an enclosure supplied from the enclosure supply device into the envelope supplied from the envelope supply device, a first input unit to input identification data of the enclosure inserted into the envelope in each of multiple insertion setting records, a second input unit to input identification data of the enclosure set in the enclosure container of the enclosure supply device, and a controller to determine whether the identification data of the enclosure to be inserted, input by the first input unit, matches the identification data of the enclosure set in the enclosure container, input by the second input unit, and to control supply of the envelope by the envelope supply device as well as supply of the enclosure by the enclosure supply device based on a result of the determination. | 05-31-2012 |
20120153556 | Sheet Processing Apparatus, Image Forming System, And Sheet Processing Method - A sheet processing apparatus includes: a sheet stacking unit on which sheets are accommodated and stacked as a sheet bundle; an aligning member that is movable along a trailing end, in a conveying direction, of the sheet bundle stacked on the sheet stacking unit and that aligns the trailing end of the sheet bundle in the sheet conveying direction by abutting thereon; a binding unit that moves along the trailing end of the sheet bundle in the sheet conveying direction and binds the aligned sheet bundle; and a moving unit that moves the aligning member in the sheet conveying direction. A distance from the trailing end of the sheet bundle in the sheet conveying direction to a binding position is adjusted by moving the aligning member in the sheet conveying direction. | 06-21-2012 |
20120229551 | IMAGE FORMING SYSTEM AND INSERTION METHOD - An image forming system includes an enclosure supply device including an enclosure container, a first image forming unit to form an image on the sheet, an envelope supply device including an envelope container, an input device to input an insertion job, an insertion device to insert into the envelope at least one sheet on which the first image forming unit has formed the image and including a temporary storage tray to temporarily store the sheets inserted into the envelope as well as an envelope retainer to hold the envelope at an insertion position where the sheets are inserted into the envelope, and a controller to cause the second image forming unit to complete image formation on the envelope and conveyance of the envelope to the insertion position before a last sheet of the multiple sheets inserted into the single envelope reaches the temporary storage tray. | 09-13-2012 |
20120267846 | SKEW CORRECTION DEVICE, SHEET HANDLING APPARATUS, AND IMAGE FORMING SYSTEM - A skew correction device includes a first conveying unit arranged in a sheet conveying path; a second conveying unit arranged downstream of the first conveying unit in a conveying direction of a sheet; and a skew correction unit. When the sheet is unfolded paper, the skew correction unit performs a first skew correction that corrects for the skew of the sheet so that a leading edge of the sheet conveyed by the first conveying unit abuts on the second conveying unit that is stopped. When the sheet is fold paper, the skew correction unit performs a second skew correction that corrects for the skew of the sheet so that a leading edge of the sheet conveyed by the first conveying unit abuts the second conveying unit and the second conveying unit is driven in a reverse direction to the conveying direction at a predetermined operational timing. | 10-25-2012 |
20120282004 | SHEET HANDLING APPARATUS, IMAGE FORMING SYSTEM, AND SHEET RECEPTION CONTROL METHOD - A sheet handling apparatus includes a sheet reception unit configured to receive a sheet; an alignment unit configured to align the sheet in a conveying direction of the sheet, a trailing edge of the sheet in the conveying direction coming into contact with the alignment unit; and a moving unit configured to move the alignment unit along the sheet reception unit in the conveying direction. A first position for aligning and binding sheets and a second position located above the first position in the sheet reception unit are set for the alignment unit as receiving positions at which the sheet is received from the sheet reception unit. | 11-08-2012 |
20120322641 | INSERTION SYSTEM, IMAGE FORMING SYSTEM, AND INSERTION METHOD - An insertion system includes a folding device to perform either single-sheet folding to fold a single sheet at a time or batch folding to fold multiple sheets together at a time, an insertion device to insert into an envelope the sheet folded by the folding device, and a batch setting unit to designate either the single-sheet folding or the batch folding from a folding and insertion menu for multiple sheets at a time when the multiple sheets are processed by the folding device and the insertion device. | 12-20-2012 |
20130113154 | Sheet Processing Apparatus, Image Forming System, And Sheet Processing Method - A sheet processing apparatus including front and back trailing-end reference fences that are movable along a sheet trailing-end and on which the sheet trailing-end abuts to align the sheet trailing-end, a side-stitching stapler that moves along the sheet trailing-end and binds a bundle of sheets aligned, a length-direction moving mechanism that moves the trailing-end reference fences in a sheet conveying direction, and a position changing unit that drives the length-direction moving mechanism to change the position of one of the trailing-end reference fences in the sheet conveying direction relative to the position of the other one. The front and back trailing-end reference fences are moved by the position changing unit in the sheet conveying direction to change binding positions such that the distances from the sheet trailing-end to staple positions are made equal in front-side binding and in back-side binding. | 05-09-2013 |
20130134659 | SHEET DISCHARGING DEVICE, SHEET PROCESSING APPARATUS, IMAGE FORMING SYSTEM, AND SHEET DISCHARGING METHOD - A sheet discharging device includes: sheet discharging rollers that receive each of sheets conveyed thereto and discharge the sheets one by one; a shift tray on which the sheets discharged by the sheet discharging rollers are to be stacked; an air blower; and a CPU. The air blower forms an air layer between the shift tray and a sheet when the sheet is discharged onto the shift tray by the sheet discharging rollers, or between a sheet and the sheet that is already placed on the shift tray when the sheet is discharged. The CPU controls an air velocity of air to be delivered by the air blower based on sheet information, thereby causing the air layer to extend to the entire surface of the sheet. | 05-30-2013 |
20130147105 | SHEET HANDLING APPARATUS AND IMAGE FORMING SYSTEM - A sheet handling apparatus includes a sheet folding unit configured to perform folding on a sheet; and a sheet stacking unit configured to stack the folded sheet on a sheet stacking surface having an inclined surface and a nearly horizontal surface in order from upstream to downstream in a sheet conveying direction. A downstream end of the inclined surface is higher than an upstream end of the inclined surface with respect to a horizontal plane. The sheet handling apparatus also includes a discharging unit configured to discharge the folded sheet to the sheet stacking unit; a sheet conveying unit configured to convey the discharged sheet from the inclined surface to the nearly horizontal surface; and a conveying force applying unit configured to apply a conveying force to the sheet in contact with an upper surface of the sheet from above the inclined surface. | 06-13-2013 |
20130228965 | SHEET DISCHARGING DEVICE, IMAGE FORMING SYSTEM, AND SHEET DISCHARGING METHOD - A sheet discharging device includes a shift tray | 09-05-2013 |
20130236228 | RECORDING MEDIUM DISCHARGING DEVICE - A recording medium discharging device includes a discharging unit configured to discharge a recording medium from a discharge port; a tray unit on which the recording medium discharged from the discharging unit is stacked; and an air blower configured to blow air in a direction substantially parallel to a direction in which the recording medium is discharged. | 09-12-2013 |
20130270763 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - According to an embodiment, there is provided a sheet processing apparatus includes a stacking unit that stacks a sheet conveyed thereto; a first alignment unit that aligns the sheet or a bundle of sheets stacked in the stacking unit in a sheet conveying direction; a second alignment unit that aligns the sheet or the bundle of sheets stacked in the stacking unit in a direction orthogonal to the sheet conveying direction; a pressing unit that presses the bundle of sheets at an end portion thereof on a predetermined one side; and a control unit that causes at least one of the first and second alignment units to execute an alignment operation during a press operation of the sheet or the bundle of sheets performed by the pressing unit. | 10-17-2013 |
20140062003 | SHEET PROCESSING APPARATUS, METHOD FOR USING THE SAME IMAGE AND IMAGE FORMING SYSTEM - A sheet processing apparatus for receiving and processing a sheet conveyed from an image forming apparatus, the sheet processing apparatus comprising: a discharging unit configured to discharge the sheet; a stacking unit configured to stack thereon the sheet discharged by the discharging unit; a blowing air unit configured to blow air along a direction parallel to a surface of the sheet being stacked; a first alignment unit having a pair of alignment plane opposed each other, the first alignment unit configured to align the sheet in a direction parallel to a discharging direction of the sheet; and a second alignment unit configured to align the sheet in a direction orthogonal to the discharging direction of the sheet, wherein the blowing air unit is provided at a position opposed to the alignment plane. | 03-06-2014 |
20140062005 | SHEET EJECTING DEVICE, IMAGE FORMING SYSTEM, AND SHEET EJECTING METHOD - A sheet ejecting device includes: a sheet ejecting unit configured to eject a sheet; a stacking unit on which the sheet that is ejected by the ejecting unit is stacked; an aligning unit configured to align the sheet in a direction orthogonal to the direction in which the sheet is ejected; and a blowing unit configured to be provided to the aligning unit and blow a wind toward the ejected sheet. | 03-06-2014 |
20140062016 | SHEET OUTPUT DEVICE, SHEET PROCESSING APPARATUS, IMAGE FORMING SYSTEM, AND SHEET OUTPUT METHOD - According to an embodiment, provided is a sheet output device including: a sheet output unit configured to output a sheet; a tray unit on which the sheet output by the sheet output unit is to be stacked; an air blower unit configured to blow air onto the sheet output by the sheet output unit; and a control unit configured to control an airflow rate of the air blower unit according to an amount of the sheet output from the sheet output unit. | 03-06-2014 |
20140141956 | SHEET PROCESSING APPARATUS, IMAGE FORMING SYSTEM, AND SHEET FOLDING METHOD - A sheet processing apparatus includes: a first pair of conveying members that convey a sheet; a second pair of conveying members that receive the sheet conveyed by the first pair of the conveying members and further conveys the sheet to a subsequent stage; and a third pair of conveying members that fold the sheet by rotating the second pair of the conveying members in a reverse direction while the sheet is held by the first pair of the conveying members and the second pair of the conveying members. One of the conveying members of the second pair serves as one of the conveying members of the third pair. | 05-22-2014 |
20140147184 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - A sheet processing apparatus includes: a folding processing unit that folds a sheet by reversely rotating a second conveying member in a condition in which the sheet is held by a first and the second conveying members; a calculating unit that calculates an amount of deflection of the sheet held by the first and second conveying members from timings at which the sheet is detected by first and second detecting units disposed upstream of the first conveying member and downstream of the second conveying member and a distance between disposed positions of the first and second detecting units; and a control unit that sets, from the calculated amount of deflection of the sheet, an amount of conveyance for the first conveying member in a direction opposite to a sheet conveying direction in a condition in which the sheet is held by the first and second conveying members. | 05-29-2014 |
20140171283 | SHEET FOLDING APPARATUS, IMAGE FORMING APPARATUS, AND IMAGE FORMING SYSTEM - A sheet folding apparatus includes: a folded part forming unit that forms a folded part on the sheet by nipping a curved portion formed on a part of the sheet between an upstream first sheet conveying unit and a downstream second sheet conveying unit by holding a part of the sheet by the first sheet conveying unit and applying conveying force to the sheet to reverse the sheet upstream by the second sheet conveying unit; and a sheet leading end detection unit disposed downstream of or at almost same position as the second sheet conveying unit. The sheet is conveyed based on a detection timing of the sheet leading end detection unit such that the leading end of the sheet protrudes by a predetermined protrusion amount from the second sheet conveying unit immediately before applying conveying force to the sheet to reverse the sheet. | 06-19-2014 |
20140179504 | SHEET FOLDING APPARATUS, IMAGE FORMING APPARATUS, AND IMAGE FORMING SYSTEM - A sheet folding apparatus includes: a first sheet conveying unit; a second sheet conveying unit that is disposed downstream of the first sheet conveying unit; a folded part forming unit that forms a folded part on a sheet by nipping a turned-back portion formed on a part of the sheet between the first sheet conveying unit and the second sheet conveying unit; a second conveying path that bifurcates from the first conveying path and in which a sheet with the folded part is conveyed; and a pushing member that is movable between a pushing position at which the pushing member pushes the turned-back portion toward the folded part forming unit and a retracted position. The pushing member also serves as a changing unit that changes a direction of a leading end of the sheet that is conveyed in the first conveying path into a direction toward a second conveying path. | 06-26-2014 |
20140203501 | SHEET DISCHARGING DEVICE, IMAGE FORMING SYSTEM, AND SHEET DISCHARGING METHOD - A sheet discharging device includes a shift tray | 07-24-2014 |
20140336031 | SHEET PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - A sheet processing apparatus includes: a first conveying member pair that folds a sheet; a second conveying member pair that conveys downstream the sheet folded by the first conveying member pair; and a third conveying member pair that further folds the sheet folded by the first conveying member pair. The second conveying member pair is rotatable forward and reversely when driven to convey, and is locked in one rotational direction but is rotatable in the other rotational direction when not driven. | 11-13-2014 |
20140364295 | SHEET PROCESSING APPARATUS, IMAGE FORMING SYSTEM, AND SHEET CONVEYING METHOD - A sheet processing apparatus includes: first to third pairs of conveying members; and a bifurcating claw that moves to a first guiding position for guiding the sheet to the second pair of conveying members, a second guiding position for guiding a deflected portion of the sheet to the third pair of conveying members, and a third guiding position for guiding a leading end of the sheet to the third pair of conveying members. The second pair of conveying members is rotated backward in a state in which the sheet is held by the first pair of conveying members and the second pair of conveying members, to guide the deflected portion to the third pair of conveying members and cause the deflected portion to be folded by the third pair of conveying members. | 12-11-2014 |