Abstract: An image forming apparatus includes an image forming portion to form an image on a sheet, a tray on which sheets to be fed are stacked, and a swing member supported by the tray and configured to swing in a case where the swing member is pushed by a discharged sheet. A stacking portion includes a first surface on an upper portion of a first portion, and a moving member in contact with the discharged sheet. The moving member can be positioned at a position downstream of the first surface in the discharge direction, wherein the swing member overlaps with the first surface as viewed in the sheet width direction in a case where the swing member is not in contact with a discharged sheet, and the swing member is arranged such that a lower end of the swing member is not in contact with the stacking portion.

Abstract: A conveying apparatus for feeding sheets into a processing apparatus is discloses which comprises a plurality of nips within which sheets are gripped and driven along a conveying direction towards the processing apparatus, each nip being defined between a respective drive wheel and an opposing reaction surface. The drive wheels are omni-wheels configured to apply a frictional force to advance the sheets in the conveying direction while permitting free movement of the sheets in a direction transverse to the conveying direction, the reaction surfaces permitting free movement of the sheets in the transverse direction, and an elongate guide is arranged on one side of the conveying apparatus, to extend generally parallel to the conveying direction, the conveying apparatus being configured to urge conveyed sheets in the transverse direction into contact with the guide.

Abstract: A sheet guide comprising a first straight portion in an upstream end of the sheet guide in a conveyance direction of a sheet, a curved portion having a curvature, the curved portion continued from the first straight portion in the conveyance direction, and a second straight portion continued from the curved portion in a downstream end of the sheet guide in the conveyance direction. The curved portion includes a pair of guide plates defining a conveyance path through which the sheet is guided, and a shape retention member retaining a part of the pair of guide plates in a curved shape, the shape retention member holding each end of the pair of guide plates in a direction orthogonal to the conveyance direction.

Abstract: A detection device includes a first detection unit that detects a leading edge portion and a trailing edge portion of a medium before the medium is heated, and a second detection unit that differs from the first detection unit and that detects the leading edge portion and the trailing edge portion of the medium after the medium is heated.

Abstract: Alignment apparatuses include a frame and contact elements connected to the frame. The contact elements contact items that are to be transported in a processing direction relative to the frame. The contact elements are in permeant fixed positions relative to the frame, and do not move relative to the frame. Adjustable mounts are connected to the frame and move the frame in the processing direction and in a perpendicular cross-processing direction. A controller is electrically connected to the adjustable mounts, and the controller is adapted to control the adjustable mounts to simultaneously move the frame and all the contact elements in the cross-processing direction and the processing direction while rotating the frame. Methods laterally shift imaging on sheets that have had rotational correction performed by such alignment apparatuses.

Abstract: A detection device includes a transport passage along which a medium is transported and a detection unit that detects a leading edge portion and a trailing edge portion of the medium in the transport passage while transportation of the medium is stopped and while the medium is pulled in a pulling direction along the transport passage.

Abstract: In an example of the disclosure, a driver correction specification is calculated based upon a time differential between a first sensor detection of a first portion of a leading edge of a media sheet and second sensor detection of a second portion of the leading edge. The driver correction specification is for causing skew correction of the media sheet as the media sheet moves along a media path to impact a blocker element. The driver is caused to operate according to the calculated driver correction specification.

Abstract: A device having a receiving device for receiving at least one ribbon-shaped substrate and with a first and a second driving means, wherein the first and the second driving means for the transport of the ribbon-shaped substrate in x-direction are designed to cooperate such that the first driving means engages in the region of the one edge of the ribbon-shaped substrate and the second driving means engages in the region of the other edge of the ribbon-shaped substrate, wherein both driving means can be controlled such that they can drive the edge area of the ribbon-shaped substrate assigned to each driving means at adjustably different drive speeds. At least the first driving means is arranged in the device via a first displacement device allowing for a displacement essentially limited to the y-direction of the first driving means, relative to the receiving device.

Abstract: A device for alignment of a book block consisting of single sheets and/or signatures is useable in a processing machine, in which manufacturing of books or printed products is carried out. The device is arranged upstream of a first processing station within the processing machine. The book block is feedable directly or indirectly into the device automatically or by hand. An alignment station has a base plate with a substantially vertically extending stop surface at an end thereof. The base plate has a movable part configured to carry out a movement with respect to the stop surface such that the movement of the movable part, in an operative connection to the stop surface, brings about an alignment of the single sheets and/or signatures at a book block edge, and such that, following alignment, the book block is grippable by at least one transport clamp for processing.

Abstract: Alignment apparatuses include a frame and contact elements connected to the frame. The contact elements contact items that are to be transported in a processing direction relative to the frame. The contact elements are in permeant fixed positions relative to the frame, and do not move relative to the frame. Adjustable mounts are connected to the frame and move the frame in the processing direction and in a perpendicular cross-processing direction. A controller is electrically connected to the adjustable mounts, and the controller is adapted to control the adjustable mounts to simultaneously move the frame and all the contact elements in the cross-processing direction and the processing direction while rotating the frame. Methods laterally shift imaging on sheets that have had rotational correction performed by such alignment apparatuses.

Abstract: A sheet conveyance apparatus that conveys a sheet along a curved path shorter than the sheet and corrects skew of the sheet, includes: a conveyance roller that sends the sheet into the curved path; a guide that guides the sheet along the curved path; and a gate that is hinders advance of the leading end, generates a moment about a normal of the sheet passing through the leading end, and allows advance of the leading end by being pushed away by the leading end, wherein the guide includes a projection projecting toward a movement space for the sheet on a surface facing the movement space, and the projection abuts a center portion of the sheet in a longitudinal direction and generates a moment about an axis parallel to an advance direction of a portion that has come into contact with the projection.

Abstract: A paper feed apparatus for a multifunction image forming apparatus includes a paper feeding portion that sends-out a paper placed in a paper placing tray. The paper feed apparatus comprises a first regulating portion and a second regulating portion arranged in the vicinity of a downstream side of a paper feeding position by the paper feeding portion. The first regulating portion is arranged outside a second width paper passage area to regulate a movement of a first width paper placed in the paper placing tray toward a feeding direction. The second regulating portion is arranged inside the second width paper passage area to regulate a movement of a second width paper placed in the paper placing tray toward a feeding direction. By this arrangement, the second width paper such as a name card can be fed in addition to the first width paper such as A4 paper.

Abstract: A sheet conveyance apparatus conveying a sheet includes a conveyance roller and first and second rotary members. A first virtual line and a second virtual line cross each other when viewed in the rotation axis direction of the conveyance roller, with the first virtual line passing through the rotation center of a first longitudinal end of the first rotary member and a rotation center of a second longitudinal end of the first rotary member when viewed in the rotation axis direction of the conveyance roller. A second virtual line passes through the rotation center of a third longitudinal end of the second rotary member and the rotation center of a fourth longitudinal end of the second rotary member when viewed in the rotation axis direction of the conveyance roller.

Abstract: A sheet conveyance apparatus includes a conveyance portion, a reverse conveyance portion, and first and second conveyance regulating portions. An engagement portion contacts the first conveyance regulating portion so that it pivots in a first pivoting direction in an interlocked manner with the second conveyance regulating portion. The first and second conveyance regulating portions are arranged between the conveyance portion and the reverse conveyance portion in a first sheet conveyance direction, and an urging member urges the first and second conveyance regulating portions toward a position where the first and second conveyance regulating portions project to a first conveyance path through which the sheet conveyed from the conveyance portion toward the reverse conveyance portion is conveyed.

Abstract: A copying apparatus capable of calibrating a copy position comprises a scanning module scanning an original to obtain an original image; and a processing module being electrically connected to the scanning module and recognizing whether the original image contains an original mark corresponding to a template mark. If the original image contains the original mark, then the processing module generates print data for being printed out according to the original image and a position parameter of the template mark. A copying method capable of calibrating the copy position is also provided. Thus, the copy position can be calibrated according to the mark of the original to prevent the copy result from having a positional offset. Consequently, no positional offset occurs even if the original is copied multiple times based on the previous generation of original.

Abstract: An image forming apparatus includes a control portion configured to control, based on a detection position of a sheet in a width direction, in a case where a center of an image formed on a first surface at an image forming portion in the width direction is displaced from a center of the sheet in the width direction at the image forming position and an image is to be formed on a second surface of the sheet, a moving portion to move the sheet in the width direction such that a position of the center of the sheet on a conveyance path in the width direction at the sheet forming position when the image is formed on the first surface and a position of a center of the sheet on the conveyance path in the width direction at the sheet forming position when the image is formed on the second surface coincide.

Abstract: A sheet processing apparatus comprises at least one roller disposed in a sheet conveyance path and configured to convey a plurality of sheets; a sheet sensor disposed in the sheet conveyance path and configured to detect each sheet as it is conveyed by a particular roller of the at least one roller and to generate sensor information indicative of the detection; and a controller configured to: use the sensor information to calculate a sheet passage interval for each sheet; count a first number of times the sheet passage interval is greater than a first threshold corresponding to abnormally slow sheet conveyance and a second number of times the sheet passage interval is lower than a second threshold corresponding to abnormally fast sheet conveyance; determine whether an alert condition has been met based on the counts of the first and second numbers of times; and generate a control signal after the alert condition has been met.

Abstract: A deskew module of a valuable media depository is selectively controlled ejection processing. Upon detection of a jammed item of media within the deskew module, angled drives are activated to lift a jammed corner of the item off a track base of the deskew module and free the item's jammed corner. Next, straight drives are activated to eject the item from the deskew module.

Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a door for accessing the fixing unit and a member positioned on an upstream side of the fixing unit in a conveyance direction of the recording material, a conveyance path for a recording material having a length in the conveyance direction equal to or longer than a predetermined length, and a control unit. The image forming unit forms an image on a recording material. The fixing unit fixes the formed image on the recording material at a nip portion. The recording material with fixed image is conveyed on the conveyance path. In a case where a predetermined recording material is conveyed to the conveyance path when a length of the predetermined recording material in the conveyance direction is shorter than the predetermined length, the control unit stops conveyance of the nipped predetermined recording material at the nip portion.

Abstract: A recording material processing apparatus includes: a first stacking unit configured to stack a recording material; a second stacking unit provided on a downstream side of the first stacking unit in a conveyance direction of the recording material; an alignment unit configured to align the recording material stacked in the first stacking unit before the recording material is discharged to the second stacking unit; and a control unit configured to perform control of discharging the recording material to the second stacking unit by switching between first control not to align the recording material by the alignment unit and second control to align the recording material by the alignment unit.

Abstract: A sheet conveying device includes: a skew detection section configured to detect a tilt of a sheet to be conveyed; two skew correction roller sections that are arranged side by side in a sheet width direction and are independently able to be driven; a downstream-side conveying roller section arranged at a downstream side of the skew correction roller sections in a sheet conveying direction; and a control section configured to control conveying operations of the skew correction roller sections based on a detection result of the skew detection section, wherein at least one of the skew correction roller sections is configured to be movable in the sheet width direction, and the control section moves at least one of the skew correction roller sections outward in the sheet width direction at predetermined timing.

Abstract: An image reading apparatus includes a scanner structured to reads an image formed on a medium which is conveyed; a calibration member located opposite to the scanner and structured to reflect irradiation light to be radiated to the medium when reading an image; a first roller arranged in a fixed position and structured to guide a conveying direction of the medium passing between the scanner and the calibration member; and a second roller arranged in a variable position in accordance with the stiffness of the medium and structured to guide the conveying direction of the medium passing between the scanner and the calibration member.

Abstract: A control system for pressing an abutting object against an abutted object includes: a mechanical device including a motor and causing a force from the motor to act on the abutting object to displace the abutting object toward the abutted object, a driving device driving the motor according to an inputted operation amount, a measuring device measuring a physical amount related to displacement of the abutting object, and a controller. The controller executes: a position control process to calculate the operation amount to be inputted to the driving device, a reaction force estimation process to estimate a reaction force acting on the abutting object, and a compliance control process to correct the operation amount which is calculated in the position control process and to be inputted to the driving device by a compliance control based on an estimate value of the reaction force estimated in the reaction force estimation process.

Abstract: A scanning apparatus is controlled to extract edges of an original document from an image scanned by a scanning device, execute an end obtaining process which causes the scanning apparatus to obtain a leading end of the original document and a trailing end of the original document based on the edges extracted in the extraction process, an inclination obtaining process to obtain a first inclination of the leading end and a second inclination of the trailing end, and a determination process to determine that a rotational skew has occurred when a difference between the first inclination and the second inclination is greater than a rotational skew threshold, the rotational skew being a change of inclination of the original document during conveyance of the original document.

Abstract: A method of detecting an overall dimension of a plate-shaped workpiece to be processed on a processing machine by a contactless-acting sensor includes moving the workpiece by a motion device of the processing machine in a predetermined direction until the sensor detects a first workpiece edge by a first change of state, detecting a first position of the workpiece where the first change of state happens by an evaluation device connected to the sensor, moving the workpiece by the motion device in a direction toward a second workpiece edge until the sensor detects the second workpiece edge by a second change of state, detecting a second position of the workpiece where the second change of state happens by the evaluation device, and determining an overall dimension of the workpiece by a determination of a distance between the first position and the second position of the workpiece.

Abstract: An image formation apparatus includes, in an apparatus body, a sensing portion which senses presence or absence of depression by a paper feed unit. The sensing portion includes a slider provided to be slidingly movable along a mounting direction of the paper feed unit, a push switch arranged behind the slider along the mounting direction, and a first elastic body and a second elastic body for elastically biasing the slider toward a direction away from the push switch. The first elastic body is interposed between the slider and a portion which does not relatively move with respect to the apparatus body, and the second elastic body is interposed between the slider and a switch portion of the push switch.

Abstract: A sheet transport device includes a transport path along which a sheet is transported in one direction; a sheet butting portion against which a side edge of the sheet on the transport path is butted, the sheet butting portion being provided at one side of the transport path; a butting section that moves the sheet toward the one side to butt the side edge against the sheet butting portion; and a sheet rotating section located on the upstream side of the butting section in a sheet transport direction, the sheet rotating section having two sheet transport parts provided so as to be shifted from each other in a direction intersecting the one direction, at least one of the sheet transport parts being configured to have a variable sheet transport speed, the sheet rotating section rotating the sheet by utilizing a difference in transport speed between the two sheet transport parts.

Abstract: Aspects of the disclosure provide an image forming apparatus. The image forming apparatus has a first conveying path and a second conveying path which joins the first conveying path. The image forming apparatus includes an actuator configured to be pivoted by a recording sheet conveyed through the first conveying path. The image forming apparatus further includes ribs disposed adjacent to the actuator in an axial direction of the actuator. The image forming apparatus has a first recess which faces at least one of the ribs and is recessed in a direction opposite to the conveying direction.

Abstract: A conveyor device includes a conveyor belt and a suction section. The conveyor belt conveys a recording medium. The suction section sucks on the recording medium through the conveyor belt. The suction section has a plurality of through holes. The suction section includes an air flow chamber. The air flow chamber has an air outlet in a bottom thereof. The bottom has first regions and a second region. The first regions are each located at a position opposite to a corresponding one of the through holes. The first regions are each located adjacent to the second region. The air outlet is located within the second region.

Abstract: A device for erasing an image on a sheet according to an embodiment includes a reading unit that reads an image formed on the sheet. An erasing unit erases the image formed on the sheet by heating the sheet. A conveyance path for the sheet between the reading unit and the erasing unit is formed guide plates arranged in an opposed manner. A cooling unit cools the sheet which passes through the conveyance path and includes at least one fan that supplies cooling air generally along a sheet conveying direction. A plurality of slits is formed in each of the guide plates such that cooling air from the at least one fan flows through the slits into the conveyance path.

Abstract: A sheet conveying device, which is incorporated in an image forming apparatus, includes a sheet holding and conveying roller pair having two rollers to convey a sheet while holding the sheet between the two rollers at a nip where the two rollers contact each other, and a gate member disposed movable with rotation of the sheet holding and conveying roller pair to correct skew of the sheet in a sheet conveying direction when a leading end of the sheet in the sheet conveying direction abuts against the gate member. The gate member has a contact surface against which the sheet abuts. The contact surface of the gate member is disposed upstream from the nip of the sheet holding and conveying roller pair in the sheet conveying direction. A setting position of the contact surface is adjusted according to thickness of the sheet.

Abstract: The image forming apparatus includes a first guide that defines a conveyance path and rotates about a fulcrum with the opening of the cover, the fulcrum being provided at a lower portion of the first guide, the conveyance path extending upward and downward and through which the sheet is conveyed; and a second guide that defines the conveyance path in combination with the first guide, the second guide being rotatable with the cover being open. The second guide moves in a direction away from the fulcrum with the opening of the cover.

Abstract: A sheet conveying device includes a conveyor, a supporting section which supports a sheet to be fed to the conveyor and a guide section which is provided on the supporting section and configured to guide a sheet to the conveyor. The supporting section includes a first support region and a second support region which support a sheet. The first support region is provided at a position on an upstream side from the second support region in a sheet conveyance direction. The first support region extends substantially horizontally, and the second support region is inclined in a lower direction toward the downstream side in the conveyance direction. The guide section includes a first portion which extends substantially horizontally along the first support region, and a second portion which is connected to the first portion and extends obliquely in the lower direction along the second support region.

Abstract: A sheet conveying apparatus including: a cover that is provided in an apparatus main body in an openable and closable manner to open a sheet conveying path through which the sheet is conveyed, by rotating in an open direction from a closed position; a guide member that is movably provided in the cover and forms the sheet conveying path; and a moving portion that is provided with a contact portion coming into contact with the sheet conveyed through the sheet conveying path, and is movably provided in the guide member; wherein the guide member moves with respect to the cover by rotating the cover in the open direction from the closed position, and thereby the moving portion moves by its own weight in a direction in which the contact portion of the moving portion is retracted from the sheet conveying path.

Abstract: A sheet feed device of an image forming apparatus includes an outside cover and an inside cover. The outside cover opens and closes a side of a housing. The inside cover is disposed more inside of the housing than the outside cover. Each of the covers is rotatably supported with a lower end thereof as a fulcrum by the housing. A first locking piece is provided in the upper end of the outside cover, and a second locking piece is disposed below the first locking piece. A coupled portion configured to be selectively coupled with the first locking piece or the second locking piece is provided in the inside cover. During the process where the outside cover is rotationally moved in the opening direction, the coupled portion is once released from the coupling with the first locking piece, and then is coupled with the second locking piece.

Abstract: A printing medium alignment device and an image forming apparatus having the same, the image forming apparatus includes a printing medium supply unit to supply a printing medium, a printing unit to print an image on the printing medium supplied from the printing medium supply unit, and a printing medium alignment device to align the printing medium fed toward the printing unit. The printing medium alignment device includes: a register roller; an idle roller to form a nip with the register roller, to feed the printing medium to the printing unit; a register to move to a first position to block the printing medium from entering the nip, to align the printing medium, and to move to a second position to allow the printing medium to enter the nip; and a shutter roller mounted in the register shutter. When the register shutter is in the second position, the shutter roller rolls while in contact with the printing medium, to decrease a friction between the printing medium and the register shutter.

Abstract: A sheet conveying device, which is incorporated in an image forming apparatus, includes a sheet holding and conveying roller pair having two rollers to convey a sheet while holding the sheet between the two rollers at a nip where the two rollers contact each other, and a gate member disposed movable with rotation of the sheet holding and conveying roller pair to correct skew of the sheet in a sheet conveying direction when a leading end of the sheet in the sheet conveying direction abuts against the gate member. The gate member has a contact surface against which the sheet abuts. The contact surface of the gate member is disposed upstream from the nip of the sheet holding and conveying roller pair in the sheet conveying direction. A setting position of the contact surface is adjusted according to thickness of the sheet.

Abstract: In an embodiment, a processor-readable medium stores code representing instructions that when executed by a processor cause the processor to receive sheet length data for two paper sheets of a same standard dimension passing consecutively through a printing device. The processor calculates a length difference between the two paper sheets, and when the length difference exceeds a two-sheet threshold, it initiates an alignment correction cycle in a paper finishing device.

Abstract: 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.

Abstract: A recording apparatus includes a recording section configured to jet a liquid, and a transport mechanism configured to transport a recording medium on which an image is recorded by the liquid jetted from the recording section. The transport mechanism includes a guide surface extending linearly and configured to guide one of two lateral ends of the recording medium transported, a driving roller configured to contact with one surface of the recording medium on a side with no image recorded and to transport the recording medium; and a driven spur having at least one spur configured to contact with the other surface of the recording medium on the side with the image recorded so as to nip the recording medium in cooperation with the driving roller, and to rotate along with the transport of the recording medium by the rotation of the driving roller.

Abstract: A paper feed apparatus is capable of correcting the skew of a sheet irrespective of a differential conveyance distance. The paper feed apparatus is provided with a first large volume paper feed apparatus 100A having a control unit 130 which performs first correction control to correct the skew of a sheet by controlling a first conveyance unit 110 and forming a loop of the sheet P before a paper stop rollers 110d, and also performs second correction control to correct the skew of a sheet by controlling a second conveyance unit 120 and forming a loop of the sheet before a paper stop rollers 110d. In this case, the control unit 130 controls the first conveyance unit 110 and the second conveyance unit 120 in order that the skew correcting ability of the second correction control becomes greater than the skew correcting ability of the first correction control.

Abstract: There is provided a recording apparatus including a recording section and a transport mechanism, which has a guide surface, a driving roller, and a driven spur. A length X (mm) of a front end surface of the driven spur and an angle Y of the driven spur are configured to be within a first area surrounded by a mathematical expression 1 which is X>0, a mathematical expression 2 which is Y>0, a mathematical expression 3 which is Y=40.1X+1.6, a mathematical expression 4 which is Y=?9.0X+5.6, a mathematical expression 5 which is Y=?12.1X+6.0, and a mathematical expression 6 which is Y=?14.7X+7.1.

Abstract: Provided are a sheet feeding device and an image forming apparatus for feeding small-size sheets without causing skew and paper jamming. On a downstream side of far-side and near-side side regulating members in a sheet feeding direction, far-side and near-side auxiliary side regulating members are provided so as to be movable in a width direction. When each of sheets has a length capable of being regulated by the far-side and near-side side regulating members in the width direction, the far-side and near-side auxiliary side regulating members are moved to retreat positions. When a sheet has a length shorter than the length capable of being regulated by the far-side and near-side side regulating members in the width direction, the far-side and near-side auxiliary side regulating members are moved to protruding positions, at which they protrude in the width direction with respect to the far-side and near-side side regulating portions.

Abstract: A media transport assembly includes a loadstop drive assembly to gather and compress a media stack in a media tray before a pick and feed cycle, and a pick drive assembly to pick a sheet of media from the media stack and feed the sheet of media to a media path. The loadstop drive assembly is positioned on one side of a gear wall and the pick drive assembly is positioned on an opposite side of the gear wall such that the pick drive assembly is driven by the loadstop drive assembly through the gear wall.

Abstract: The invention relates to apparatus for the provision of receipt, validation and collection of banknotes or tickets which are input by a user, typically as payment for a service which has or is to be provided. The apparatus allow for the accurate location of the banknote or ticket as it passes through the apparatus and the accurate validation of the same. In one embodiment a printer assembly is provided which allows the apparatus to print tickets and to pass the same in the reverse direction to input banknotes or tickets, to be provided to the user as, for example a credit which can be cashed subsequently by the user.

Abstract: When a bill is inserted into the bill acceptor, sensor components sense the insertion of bill, bill-pressing roller set of bill transmission mechanism is driven to press bill, bill-transfer roller set is driven to transfer bill the bill-pressing roller set is released from the bill, and step motors of alignment correction unit are controlled to move correction devices toward each other to align the bill with the center line of bill passage subject to a predetermined number of steps. If the resistance force from bill is larger than the thrust force produced during rotation of step motors, utilize the step loss status of step motors and enable transmission devices to move correction devices away from bill when the rotation of step motors reaches the predetermined number of steps, and then enable bill-pressing roller set to press bill again and then enable bill-transfer roller set to transfer bill.

Abstract: In a sheet conveying device, a first sensing portion is configured to output a first sense signal when a sheet is absent at a first sensing position determined in advance on a sheet placement portion, and output a second sense signal when the sheet is present at the first sensing position. A second sensing portion is configured to output the second sense signal when the sheet is absent at a second sensing position separated from the first sensing position in a width direction perpendicular to a conveying direction of the sheet, and output the first sense signal when the sheet is present at the second sensing position. A sensing control portion is configured to sense a plurality of states in accordance with a combination of the first sense signal and the second sense signal.

Abstract: A medium conveyance apparatus includes a conveyance mechanism to convey a medium along a main conveyance path from a front side to a rear side; a sub-conveyance unit including a sub-conveyance path parallel with the main conveyance path and configured to convey the medium along the sub-conveyance path from the rear side to the front side; a medium transport mechanism to transport the medium from the sub-conveyance path or the medium supply unit to the main conveyance path; and a support member supporting the sub-conveyance unit to be slidable toward the front side. The sub-conveyance unit includes: a plate member defining the sub-conveyance path; and a medium guide mechanism attached to one end of the plate member on the front side. The medium guide mechanism guides the medium from the medium supply unit to the medium transport mechanism, and the medium from the sub-conveyance path to the medium transport mechanism.

Abstract: A sheet transport apparatus includes: a transport portion that transports a sheet; a skew correction portion against which a leading edge of the sheet transported by the transport portion abuts for skew correction, the skew correction portion moving to a position where the skew correction portion does not hinder the transport of the sheet after the skew correction; and a plurality of sheet abutting portions that is provided in the skew correction portion and against that the leading edge of the sheet transported by the transport portion abuts, the plurality of sheet abutting portions respectively including a resin member, and an abutting portion which is provided in the resin member and having an abrasion resistance higher than that of the resin member, and against which the leading edge of the transported sheet abuts.

Abstract: An apparatus includes a differential to receive a primary driving force, and provide a first driving force and a second driving force. A first pick wheel is to transfer the first driving force to a sheet. A second pick wheel is to transfer the second driving force to the sheet. The differential is to balance the first driving force and the second driving force to reduce skew in the sheet and feed the sheet along a feed path of a printer. The first pick wheel and the second pick wheel are aligned perpendicular to the feed path at an offset from the differential.