Abstract: A sheet transport device includes a pair of movable transport rollers capable of transporting a sheet while holding the sheet and capable of moving in an axial direction crossing a transportation direction; pairs of first transport rollers disposed upstream from the pair of movable transport rollers in the transportation direction while being spaced apart from each other to transport the sheet while holding the sheet; and pairs of transport guides disposed to define sheet transport spaces between the pair of movable transport rollers and the pairs of first transport rollers and between the pairs of first transport rollers. When the pair of movable transport rollers is to be moved in the axial direction, first transport rollers in at least one of the pairs of first transport rollers are separated not to hold at least part of a portion of the transported sheet located upstream from the pair of movable transport rollers.

Abstract: A sheet transport device includes a pair of movable transport rollers capable of transporting a sheet while holding the sheet and capable of moving in an axial direction crossing a transportation direction; pairs of first transport rollers disposed at a distance from each other upstream from the pair of movable transport rollers in the transportation direction to transport the sheet while holding the sheet; and pairs of first transport guides disposed to define sheet transport spaces between the pair of movable transport rollers and the pairs of first transport rollers and between the pairs of first transport rollers. When the pair of movable transport rollers is moved in the axial direction, at least one of the pairs of first transport rollers is displaced in a direction to widen the transport space.

Abstract: A medium transport device includes: a first transport unit on a front side and a first transport unit on a rear side that are respectively disposed in a front part and a rear part of a region having a length in a transport direction of a medium having a transportable minimum size and that transport the medium while nipping the medium; a second transport unit that is disposed between the first transport units and that transports the medium while nipping the medium and pulling the nipped medium outward in a width direction intersecting the transport direction; and a controller that performs control so that the medium transport device transports the medium while nipping the medium by using only the second transport unit when the medium is a thin medium having a thickness less than or equal to a predetermined thickness and so that the medium transport device transports the medium while nipping the medium by using the first transport units and the second transport unit when the medium is a medium other than the th

Abstract: A sheet transport device includes a pair of movable transport rollers capable of transporting a sheet while holding the sheet and moving in an axial direction crossing a transportation direction; pairs of first transport rollers upstream from the pair of movable transport rollers in the transportation direction while being spaced apart from each other to transport the sheet while holding the sheet; and pairs of transport guides to define sheet transport spaces between the pair of movable transport rollers and the pairs of first transport rollers and between the pairs of first transport rollers. When the pair of movable transport rollers is to be moved in the axial direction, at least one pair of first transport rollers transports the sheet while bending the sheet in the transport space by producing a difference in transport rate within a portion of a section upstream from the pair of movable transport rollers.

Abstract: Provided is a sheet conveying device including: a conveying portion; and a first conveying guide, the first conveying guide forming a conveying path above a heating portion and having a curved portion for forming a curved path in the conveying path and a plurality of ribs provided on a surface of the curved portion, the plurality of ribs extending along a conveying direction and including a first rib and a second rib adjacent to the first rib, wherein the second rib is arranged to be deviated from the first rib in a width direction and the conveying direction, and wherein in the conveying direction, a second upstream end of the second rib being positioned between a first upstream end and a first downstream end of the first rib, the first downstream end being positioned between the second upstream end and a second downstream end of the second rib.

Abstract: A sheet conveyance device capable of reducing occurrence of creases on a sheet includes first conveyance rollers that nip and convey a sheet, second conveyance rollers arranged downstream that convey the sheet, registration rollers arranged further downstream that nip and convey the sheet after correcting skew of the sheet, a switching portion that switches a state of the second conveyance rollers between contact and separated states, and a control unit that controls the rollers and the switching mechanism. The control unit switches between first and second conveyance operations. In both conveyance operations, the registration rollers start rotating to convey the sheet of which the skew has been corrected by the first conveyance rollers and the registration rollers and the second conveyance rollers are in the separated state.

Abstract: A sheet conveying device includes a sheet detection unit and a position adjusting mechanism. The position adjusting mechanism is disposed on a downstream side of the sheet detection unit in a sheet conveying direction in the sheet conveying path, includes an adjusting roller pair, and performs skew correction and positional displacement correction of a sheet, while conveying the sheet. The sheet conveying path includes a first conveying roller pair disposed on an upstream side of the position adjusting mechanism in the sheet conveying direction, and a curved part disposed between the adjusting roller pair and the first conveying roller pair, which curves in an S shape so as to be convex in a front and back side direction of the sheet alternately at different positions in the sheet conveying direction. The adjusting roller pair nips and conveys the sheet together with the first conveying roller pair.

Abstract: To provide a sheet conveyance device capable of preventing degradation in quality of conveying a sheet and image quality even when a stiffness of the sheet is different between a sheet conveyance direction and a sheet width direction. A sheet conveyance device of an image forming apparatus includes an image forming part that conveys a sheet along a conveyance path; and a stiffness acquisition part that acquires a stiffness of the sheet in a first direction including a component in the sheet conveyance direction by bending the sheet in the first direction, and acquires a stiffness of the sheet in a second direction including a component in the sheet width direction orthogonal to the sheet conveyance direction by bending the sheet in the second direction.

Abstract: The invention relates to a sheet alignment device (5) for a machine for the processing of sheets (B) consisting of a thin, flat material such as paper, cardboard or film, with a feed section, at least one sensor (30, 32) for determining the position and/or alignment of the sheet (B) and also at least two alignment modules (10), each having an alignment roller (12), to which a drive device (14) is assigned in each case, whereby there is assigned to each alignment module (10) a swivel device (16), with which the alignment roller (10) can be swivelled around a swivel axis (A) perpendicular to the feed section. The invention relates also to a machine for the processing of sheets (B) consisting of a thin, flat material such as paper, cardboard or film, whereby a sheet alignment device (5) of the aforementioned type is provided.

Abstract: A sheet conveying device, which is included in an image forming apparatus, includes a plurality of position detectors, a leading end detector, and a position adjuster. The plurality of position detectors is configured to detect a position of a sheet. The leading end detector is configured to detect a leading end of the sheet. The position adjuster is configured to, based on a detection result obtained by the plurality of position detectors, rotate in a rotation direction of the sheet within a plane of conveyance of the sheet to change the position of the sheet the position adjuster grips the sheet under conveyance to cause the leading end detector to rotate with the position adjuster in the rotation direction of the sheet within the plane of conveyance of the sheet.

Abstract: A medium conveying apparatus includes a driving force transmitting mechanism to transmit a driving force from a first motor to a brake roller and a pair of conveyance rollers located on the downstream side of the brake roller, and a processor to rotate the first motor forward to control so that a medium separated by the brake roller is conveyed by the pair of conveyance rollers, in a separation mode. The processor rotates the first motor backward to perform a feed operation by the brake roller and rotate the pair of conveyance rollers backward until a front edge of the medium passes through a position of the brake roller, and rotates the first motor forward to control so that the medium is conveyed by the pair of conveyance rollers after the front edge of the medium passes through the position of the brake roller, in a non-separation mode.

Abstract: A sheet processing apparatus includes a roller pair configured to convey a sheet, a sheet bundle conveyer configured to convey a sheet bundle to the roller pair, and circuitry configured to cause the sheet bundle conveyer to contact leading edges of sheets of the sheet bundle to the roller pair and cause the roller pair to rotate in reverse to align the leading edges of the sheets of the sheet bundle.

Abstract: A medium conveying apparatus includes a plurality of feed rollers, each feed roller rotating independently at a respective speed to feed a medium, a first sensor located on a downstream side of the plurality of feed rollers in a medium conveying direction and also in a central part in a direction perpendicular to the medium conveying direction, to detect the medium, a second sensor and a third sensor located on both sides of the first sensor in the direction perpendicular to the medium conveying direction, to respectively detect the medium, and a processor to change the speed of one of the plurality of feed rollers at least until the first sensor detects the medium when any of the second sensor or the third sensor detects the medium and the first sensor does not detect the medium within a predetermined time.

Abstract: A medium processing device includes a conveyance guide that forms a conveyance path, a reference surface guide that is provided at one side of the conveyance path, a trigger sensor that detects a rear end of the medium in the conveyance direction, a first alignment roller and a second alignment roller for aligning the medium with the reference surface guide. The first alignment roller is provided at the middle, in a width of the conveyance path. The second alignment roller is provided between the reference surface guide and the first alignment roller in the width direction. The second alignment roller is provided at a downstream side of the first alignment roller in the conveyance direction. A space from the first alignment roller to the second alignment roller in the conveyance direction is longer than a space from the trigger sensor to the first alignment roller in the conveyance direction.

Abstract: An image forming apparatus includes a first detector, a second detector, and a determination section. The first detect detects a first skew angle of a sheet. The second detector is located downstream of the first detector and detects a second skew angle of the sheet. The determination section determines whether or not to stop conveyance of the sheet based on the first skew angle and the second skew angle.

Abstract: A sheet feeder apparatus includes a width detector for a sheet placed on a sheet placement portion, a conveyor for conveying sheets while separating the sheets one by one, a first detector for detecting a sheet having a first width at a plurality of first positions, a second detector for detecting a sheet having a second width that is not detected by the first sheet detector at a plurality of second positions, and a controller for determining skewing of a sheet based on a result of the detection of the sheet performed by the first detector if the width of the sheet is the first width, and determining skewing of a sheet based on a result of the detection performed by the second detector if the width of the sheet is the second width.

Abstract: Provided are a sheet position detection apparatus, a sheet conveyance apparatus, and an image formation apparatus. The sheet position detection apparatus has a first and a second conveyance roller which are arranged to oppose across a sheet to be conveyed and to nip the sheet, and a detector configured to detect an end position of the sheet, the detector has a light emitter and a light receptor arranged on the first conveyance roller side, the light emitter and the light receptor are arranged such that a light emitted from the light emitter is reflected on a reflective face of the second conveyance roller and enters the light receptor, and the detector detects passage of an end of the sheet based on a change in the amount of light entering the light receptor when the sheet shields a light emitted from the light emitter.

Abstract: Various embodiments herein each include at least one of systems, assemblies, devices, components, methods, software and firmware for a note validator transport path centralizer, such as may be present in a Self-Service Terminal, e.g., an Automated Teller Machine. One example method embodiment includes receiving a note by a receiving and transport module of a note validator and sensing a lateral positioning of the note on a transport path of the note validator. This method further includes engaging at least one centralizing mechanism to move the note to a medial position on the transport path of the note validator and disengaging the at least one centralizer mechanism upon sensing the note reaching the medial position on the transport path of the note validator. The method may then output the note from the receiving and transport module of the note validator to a note validation module.

Abstract: A registration system for a printing device and a method for controlling the same are disclosed. For example, the registration system includes at least one sensor, omni wheels, a motor coupled to each omni wheel, a translating carriage, and a processor communicatively coupled to the at least one sensor, the motors, and the translating carriage, wherein the processor calculates a desired movement to move the omni wheels and the translating carriage based on the position of the print media.

Abstract: An apparatus for aligning notes of value along a transport path has a note reader with a scanning line with areas detection areas there along. The scanning areas are arranged along a line orthogonally with respect to a central axis of the transport path. A first and at least one second transport elements serve to transport the note along the transport path in at least one transport direction. The transport elements each contact the note in a contact area. At least one aligning apparatus is used for aligning the note, which is arranged between the first and second transport elements and forms a section of the transport path. The note reader detects the trailing edge of the note in a first scanning area and in a second scanning area.

Abstract: In one example implementation, a printing device may comprise a number of media skewing rollers to skew a print medium to a predetermined angle with respect to a media feed path and a print engine to print an image on the skewed print medium, the print engine skewing a digital representation of the image based on the predetermined angle such that the image printed is aligned with the print medium. In another example implementation, a printing device may comprise a number of skewing rollers to skew a print medium to a predetermined angle with respect to a media path, a number of pinch rollers to receive the skewed print medium prior to printing, and a print engine skewed to the same predetermined angle as the skewed print medium.

Abstract: A recording device capable of preventing an occurrence of a transport wrinkle in a transport path is provided. A recording medium transport device includes a driving roller (111) and a driven roller (112) arranged such that a roller axial direction of the driving roller and a roller axial direction of the driven roller are parallel to each other, a recording medium (1) being transported by driving the driving roller (111) with the recording medium (1) held between the driving roller (111) and the driven roller (112), and the driven roller (112) is movably supported from a predetermined position in the roller axial direction, and in a case where the driven roller (112) is separated from the driving roller (111) without holding the recording medium (1) between the driven roller and the driving roller (111), the driven roller (112) moves to the predetermined position in the roller axial direction.

Abstract: A registration system for a printing device and a method for controlling the same are disclosed. For example, the registration system includes at least one sensor to detect a position of a print media, at least one laterally adjustable nip, wherein the laterally adjustable nip moves along an inboard direction and an outboard direction, a motor coupled to the at least one laterally adjustable nip to move the at least one laterally adjustable nip a desired amount of movement based on the position of the print media and a width of the print media, and a processor communicatively coupled to the at least one sensor and the motor to calculate a desired amount of movement based on the position of the print media and control the motor to move the at least one laterally adjustable nip by the desired amount of movement.

Abstract: A paper supply apparatus includes: a primary paper supply roller that feeds out and conveys a print medium from a paper tray on which the print medium is placed; resist rollers that a leading end of the print medium abuts to form a flexure in the print medium by temporarily ceasing conveyance, and rotate at a predetermined timing after this flexure is formed, to convey the print medium toward a conveyance mechanism; and a control unit that executes assist control that drives the primary paper supply roller during the time that the print medium is being conveyed by the resist rollers to assist conveyance of the print medium by the resist rollers. The control unit executes the assist control such that the flexure in the print medium remains at a point in time at which the leading end of the print medium reaches the conveyance mechanism.

Abstract: An image forming apparatus configured to form images on both sides of a sheet, includes an image forming unit, which is configured to form an image on an image bearing member, and a sheet conveying device, which is configured to move the sheet being conveyed toward a width direction, which is orthogonal to a conveyance direction. After the formed image is transferred onto a first surface of the sheet, the image forming apparatus inverts and conveys the sheet to transfer an image onto a second surface. Moreover, a side edge position of the sheet in the width direction is detected during conveyance for the transferring onto each of the first surface and the second surface, and an image writing start position for the image forming unit is determined based on a result of the detection to store a result of the determination in a memory.

Abstract: A sheet conveying device, which is included in an image forming apparatus, includes a sheet holding roller to move while holding a sheet, a detector to perform a primary detection to detect a sheet position before the sheet holding roller holds the sheet and a secondary detection to detect a sheet position downstream from the sheet position detected by the primary detection, and a controller configured to cause the sheet holding roller to perform a first drive to move the sheet holding roller in at least one direction of a width direction of the sheet and a rotation direction in a sheet conveying surface based on a result of the primary detection and a second drive to move the sheet holding roller opposite to the at least one direction of the first drive, based on a result of the secondary detection.

Abstract: A sheet feeding apparatus, including: a pair of sheet feeding rollers; a pair of conveyance rollers; and a controller, wherein when a first condition regarding a sheet position is fulfilled in the sheet feeding, the controller makes one of the first conveyance roller and the second conveyance roller move in a direction opposite to the other conveyance roller and when a second condition regarding the sheet position is fulfilled in the sheet feeding, the controller makes the one conveyance roller move in a direction toward the other conveyance roller.

Abstract: A sheet conveying device, which is incorporated in an image forming apparatus, includes a first detector to detect an angle deviation of a recording medium to a sheet conveying direction, a second detector to detect a lateral shift of the recording medium to a width direction, a third detector to detect at least one of the angle deviation and the lateral shift after correction of the angle deviation detected by the first detector and the lateral shift detected by the second detector, and a rotary body to perform a primary movement by (1) rotating in the sheet conveying direction and returning to a reference position and by (2) moving in the width direction and returning to the reference position, and a secondary movement by performing at least one of (1) and (2) after the primary movement.

Abstract: An image forming apparatus performs skew correction by bringing a leading end of a conveyed sheet in contact with a registration roller pair being in a stopped state and by forming a first loop with a loop roller pair, and thereafter, refeeds the sheet to an image former by adjusting timing. In a case of feeding a sheet with a length equal to or longer than a prescribed length, after having formed the first loop, the image forming apparatus forms a second loop in a loop accommodator that is disposed on an upstream side than the loop roller pair and accommodates a formed loop.

Abstract: According to detection results of a plurality of original document detectors, an image reading apparatus determines whether or not correcting skew of an original document is possible, controls a pair of a plurality of transport rollers in a case where it is determined that correcting the skew of the original document is possible, and corrects the skew of the original document by making transporting speeds of the pair of the plurality of transport rollers different from each other.

Abstract: A roller-type lateral force generation device includes a roller, a first plate, a second plate, a connection plate, a first spring, a rotation shaft, a second spring, a fixing element and an adjustment element. The connection plate is disposed along a set direction, which is perpendicular to a paper-feeding direction. The first spring is disposed between the first plate and a first shaft portion of a roller shaft of the roller. The second spring is disposed between the second plate and a second shaft portion of the roller shaft. The adjustment element has a limitation plate perpendicular to the first plate. The limitation plate has a limitation groove. The first shaft portion is penetrated through the limitation groove. The set direction and the connection line of the rotation shaft and the roller shaft have an angle larger than 0 degree. A lateral force is generated, thereby avoiding paper squeezing inward.

Abstract: A paper conveying apparatus and an image forming apparatus are described which can appropriately convey a sheet when the sheet is restarted after forming a loop. The paper conveying apparatus includes a conveying roller pair in the upstream side of a loop roller pair, a stepping motor for rotationally driving the conveying roller pair, and a processor for controlling rotation of the stepping motor by controlling pulse signals and excitation current supplied to the stepping motor. This processor halts rotation of the conveying roller pair by stopping output of the pulse signals when loop formation of the sheet is completed, and switches the excitation current to a lower current value which is lower than a reference current value at which excitation is turned on.

Abstract: A media path moves media sheets from a media supply, a print engine receives the media sheets from the media path, and a sensor detects a characteristic related to the media sheets. A drive nip continuously moves the media sheets, and a stall nip receives the media sheets from the drive nip. The stall nip is positioned less than the length of one of the media sheets from the drive nip. The stall nip alternately stops or moves the media sheets while the drive nip continuously moves the media sheets, as controlled by a controller, to cause the media sheets to buckle between the drive nip and the stall nip. The controller controls when to stop or move the media sheets to constantly vary the size of the buckle, and thereby make the buckle relatively larger for a first characteristic and make the buckle relatively smaller for a different characteristic.

Abstract: A sheet transport device includes a transport path along which a sheet is transported in one direction; a sheet butting portion provided at one side of the transport path; a sheet rotating section; and a sheet butting section. When a short sheet is transported along the transport path, the sheet rotating section rotates the short sheet such that a leading end is directed to the other side of the transport path, and when a long sheet is transported, the sheet rotating section rotates the long sheet such that an angle of inclination with respect to the one direction is reduced. The sheet butting section moves the short sheet rotated by the sheet rotating section toward the one side to make the side edge of the short sheet butt against the sheet butting portion, while allowing the long sheet to pass therethrough without moving the long sheet toward the one side.

Abstract: An image forming apparatus includes: a conveying portion configured to convey a continuous recording medium in a first conveying direction or in a second conveying direction opposite to the first conveying direction; an image forming portion configured to form a toner image on the continuous recording medium at a transfer nip; a fixing portion provided on a lower stream side of the image forming portion in the first conveying direction and configured to heat and fix the toner image formed on the continuous recording medium, at a fixing nip; a retaining portion provided between the transfer nip and the fixing nip in the first conveying direction and configured to retain a part of the continuous recording medium; and a control portion configured to control the conveying portion to convey a passed portion that has passed through the fixing nip and control the retaining portion to retain the passed portion.

Abstract: A banknote drive arrangement adjacent a banknote inlet repositions and drives a banknote into a banknote processing pathway for validation. The drive arrangement includes two drive rollers preferably spaced either side of a longitudinal axis of the pathway and adjacent to the banknote inlet. Each drive roller is separately controlled to allow different rotational speeds thereof (and forward and rearward movement Of a banknote) to allow shifting of a received end portion of a banknote before receiving the entire length of the banknote. This arrangement is preferably used with a sensing arrangement for sensing misalignment of an inserted banknote and if sensed, using the different rotational speeds to correct misalignment and preferably center a banknote in the processing pathway.

Abstract: An image reading apparatus includes a light source and a movable light reflecting surface provided to be capable to move to a first position to reflect light from the light source. The image reading apparatus includes a cam to move the light reflecting surface and having a first portion, a driving module for providing a driving force, and a transmission member for rotating the cam with the driving force provided by the driving module, the transmission member having a second portion, wherein the transmission member moves the light reflecting surface to a predetermined position by rotating the cam, and by bringing the second portion into contact with the first portion to hold the light reflecting surface at the predetermined position when there is no driving force.

Abstract: An orientation correcting device includes a first transporting unit that nips and transports a sheet; a detecting unit that detects a tilt of the sheet that is transported by the first transporting unit; a second transporting unit that nips and transports the sheet that has been transported by the first transporting unit; a flexure forming unit that, with the second transporting unit stopped, forms a flexure in the sheet as a result of causing the sheet that is transported by the first transporting unit to strike against the second transporting unit; and a moving unit that, with the second transporting unit stopped and the flexure formed in the sheet by the flexure forming unit, moves the second transporting unit in a crossing direction that crosses a transport direction of the sheet in accordance with an amount and a direction of the sheet tilt detected by the detecting unit.

Abstract: A sheet-conveying device has a guide member that constitutes a sheet-conveying route, a plurality of rollers and a control portion that performs a sheet-position correction operation. The plurality of rollers is provided at plural portions of the guide member. Each roller projects from the guide member, contacts a sheet and rotates together with the conveyance of the sheet. The control portion searches the roller(s) 6 arranged at positions that may contact the end surface of the sheet along the width direction thereof in the register fluctuation operation to produce positional information of the roller(s) to be escaped. The control portion escapes the roller(s) specified by the positional information of the roller(s) to be escaped before a register fluctuation operation starts.

Abstract: A paper sheet transport apparatus (10) includes transport member that is slidable along the widthwise direction of a transport path (11) (e.g., a drive roller (36) and a driven roller (38)), and a paper sheet detection unit (inlet-side paper sheet detection sensor (70)) that is arranged on an upstream side of the transport member in the paper sheet transport direction along the transport path (11) and detects the position of the paper sheet in the widthwise direction of the transport path (11). A control unit (80) calculates an amount of movement of the transport member based on the position of the paper sheet in the widthwise direction of the transport path (11) detected by the paper sheet detection unit and a previously set predetermined position of the paper sheet in the widthwise direction of the transport path (11).

Abstract: A paper medium recognition device according to one embodiment of the present invention includes: a main body that provides a transportation path in which an alignment reference line for aligning a paper medium is arranged on one side; and an alignment unit which has a transportation roller which transports the paper medium in the longitudinal direction along the transportation path, and which has an alignment roller that is arranged in the direction orthogonal to the transportation roller so as to transport the paper medium in the width direction toward the alignment reference line. A phase difference is provided during the rotation of the transportation roller and the alignment roller, and thus the paper medium can be alternately transported in the longitudinal direction and width direction.

Abstract: An image forming apparatus includes: a first conveyance section disposed on an upstream side of the image formation position in a sheet conveyance direction of the long sheet, and configured to convey the long sheet to the image formation position; a second conveyance section disposed on a downstream side of the image formation position in the sheet conveyance direction, and configured to convey the long sheet on which the toner image is formed; a displacement detection section configured to detect displacement of the long sheet in a sheet width direction; and a control section configured to move the first conveyance section in the sheet width direction to orient the long sheet in the sheet width direction, and move the second conveyance section in a direction identical to a direction along which the first conveyance section is moved based on a detection result of the displacement detection section.

Abstract: An image forming apparatus comprises a conveyance roller, a register roller, a sensor, a movable section, and a control section. The conveyance roller conveys a sheet. The register roller is arranged downstream of the conveyance roller along a sheet conveyance path. The sensor detects a deflection amount of the sheet when the sheet is pressed against the register roller. The movable section is connected to at least one end part of the conveyance roller. The control section controls the movable section to move the at least one end of the conveyance roller based on the deflection amount detected by the sensor, to tilt a rotational axis of the conveyance roller relative to a rotational axis of the register roller.

Abstract: A sheet conveying apparatus includes first and second rotator pairs, a moving member including an abutment portion against which a front end of the sheet conveyed by the first rotator pair abuts and a guide member provided at upstream, in the sheet conveying direction, of a nip portion of a second rotator pair. The guide member configured to be movable to a first position where the guide member guides the sheet toward the moving member in a projection state and to a second position away from the moving member more than the first position and turns to the second position during when the sheet is conveyed by the second rotator pair.

Abstract: The present sheet processing apparatus determines whether or not a received job includes a setting for executing an alignment process, and if the alignment process is set to be executed, performs control to execute the alignment process.

Abstract: A skew correction apparatus includes a first roller pair configured to nip a sheet to convey the sheet, a second roller pair provided upstream of the first roller pair and configured to nip the sheet and convey the sheet, a contact portion provided downstream of the first roller pair and configured to come in contact with a leading edge of the sheet conveyed with the first roller pair to correct a skew of the sheet, and a separation mechanism configured to set the second roller pair to a separated state before the skew of the sheet conveyed downstream with the first roller pair is corrected.

Abstract: A transport apparatus includes: a guide surface which extends in a transport direction for transporting a medium and which is configured to guide the medium to be transported; a first roller which is a driving roller for transporting the medium; a second roller which is a driven roller arranged to face the first roller; and a roller support member which rotatably supports the second roller and which is configured to be pivotable about a support shaft perpendicular to an axis of a rotational shaft of the second roller between a first position and a second position.

Abstract: A sheet conveyance mechanism in the present disclosure has a feeding portion, a pair of registration rollers, a first sensor, a second sensor, and a conveyance control portion. The feeding portion has a drive roller. The registration rollers are disposed in a downstream side of the feeding portion. The first and second sensors detect presence of a sheet. If after a sheet is detected by the first sensor, the sheet is not detected by the second sensor by a time when a first period elapses, the conveyance control portion starts a slowdown of a rotation speed of the drive roller. If the sheet is detected by the second sensor by a time when a second period elapses after the slowdown of the rotation speed of the drive roller starts, the conveyance control portion returns the rotation speed of the drive roller to a rotation speed before the slowdown.

Abstract: An image forming apparatus comprising a conveyance path of recording material comprises a door, when opened, the inside of the apparatus is exposed, and an interlock circuit which detects opening/closing state of the door. The detection unit of the door is arranged on the conveyance path. At the arranged position, the image forming apparatus comprises a registration sensor for detecting presence and absence of the recording material and delivery sensor. The CPU controls pressure to the recording material S passing the fixing nip portion formed by a pair of rollers arranged on the conveyance path. Also, the CPU decides whether the recording material exists at the fixing nip portion based on the respective detection result from the registration sensor and the delivery sensor.

Abstract: A sheet processing apparatus includes an aligning member and a shift conveying unit. The aligning member is movable in a width direction perpendicular to a sheet conveying direction and presses a sheet stack loaded on a sheet processing tray so as to align the sheet stack in the width direction. The unit is provided on the upstream side of the tray and conveys a sheet, shifting the sheet in the width direction. Being shifted by the unit, sheets are loaded at first and second loading positions on the tray. When sheets are loaded at the first loading position, the aligning member is moved to a first standby position corresponding to the first loading position in advance. When sheets are loaded at the second loading position, the aligning member is moved in advance to a second standby position corresponding to the second loading position.