Abstract: A recording apparatus with a relatively simple structure for easily, reliably, and stably transporting a recording medium includes a recording head performing a recording operation by discharging ink; a platen for guiding the recording medium, disposed so as to face the recording head; a discharge roller for discharging the recording medium, disposed in the downstream region of the platen and comprising at least two first roll portions and at least one second roll portion having a smaller diameter than the first roll portions; and at least two discharge guides for guiding the recording medium from the platen to the discharge roller. One end of each of the discharge guides is rotatably supported by the platen, and the other end thereof abuts against the second roll portion of the discharge roller.

Abstract: A printer apparatus includes: a platen roller around which paper sheets wind; a printing structure arranged for being drawn near to and away from the platen roller; a plurality of winding support members circumferentially disposed around the platen roller, for guiding a paper sheet to wrap around the roller; a sheet feed guide disposed in proximity to the printing structure and being pivotable substantially along the circumference of the roller; and a diverting mechanism for letting the sheet feed guide escape to a position such that it does not interfere with the printing structure in a print mode. The sheet feed guide is linked with a lever that pivots in a plane substantially perpendicular to the rotation axis of the platen roller, the lever having a fore-end protuberance.

Abstract: The present invention describes a double belt transport system for moving a mailpiece into a printing area of a digital printer. The transport system includes an upper belt and a lower belt. The upper belt has a straight section to form a nip with the lower belt to ingest the mailpiece. The straight section also defines a registration plane to register the upper surface of the mailpiece with respect to the print head of the printer. In order to make sure the registration is consistent regardless of the thickness of the mailpiece, an up-lifting mechanism is used to push the bottom of the mailpiece in an upward direction against a shield plate, which is positioned substantially on the registration plane. A velocity measurement device, such as an optical encoder, is used to measure the moving speed of the belts so that the printing speed of the digital printer matches the moving speed of the mailpiece in the print area.

Abstract: In a printer having an input tray, a media loader insert is provided, the media loader insert including an insert body which defines a reduced-size media receptacle, the insert body being sized to securely fit within the input tray; and a width adjuster adjacent the reduced-size media receptacle, the width adjuster being positioned centrally along a side edge of the reduced-size media receptacle to centrally engage a side edge of media within the reduced-size media receptacle, thereby reducing media skew.

Abstract: A printer system is disclosed. The printer system includes a frame, at least one feed roll shaft coupled to the frame for feeding a document through the printer system, and a reference plate rotatably attached to the at least one feed roll shaft. The reference plate includes a first surface for facilitating scanning functions and a second surface for facilitating printing functions. According to the system and method disclosed herein, printing and scanning mechanisms are optimally integrated in a compact space by utilizing a multi-purpose reference plate.

Abstract: A media handling system for handling sheets of media. The system includes a pick roller having a circumferential media-contacting surface and arranged for rotation about a roller axis to contact and pick a sheet from an input source. A drive roller rotates about a drive roller axis, with a media path extending between the pick roller and the drive roller. A first guide structure is positioned along a first longitudinal edge of the media path and providing a first media guide surface. A second guide structure is positioned along a second longitudinal edge of the media path and provides a second media guide surface. The first and second guide surfaces are positioned to constrain the movement of a media sheet in the media path between the pick roller and the drive roller, thereby alleviating trailing edge print defects.

Abstract: A paper guide which does not make stripes on an image on a printing paper. The paper guide of an electrophotographic image forming apparatus includes a guiding member for guiding the printing paper into a fusing unit, a plurality of guiding ribs formed on the guiding member to prevent direct contact of the printing paper with the guiding member, and a blocking bar formed on a leading end near the fusing unit of the guiding member in order that the spaces between the plurality of guiding ribs are blocked from the fusing unit. The blocking bar is formed at the same height as the guiding ribs and has a triangular section with a slope steeper than the section of the guiding ribs.

Abstract: A flat platen is provided in an image forming apparatus having a side edge detector that detects a side edge of a recording medium to be fed in a predetermined direction. The flat platen has a surface on which the recording medium to be fed is supported and is disposed facing the side edge detector. The side edge detector has a light emitting device and a light receiving device, which are disposed such as to face the recording medium. The side edge detector detects a side edge of the recording sheet while moving in a direction perpendicular to the predetermined direction to emit light from the light emitting device. In such a flat platen, an anti-reflective treatment, which reduces or prevents light led to the light receiving device from the light emitting device through the reflection on the surface, is applied to the surface of which corresponds to at least a vicinity of a side edge of a standard-size recording medium.

Abstract: A printer paper support system includes a housing, a first paper support pivotally attached to the housing and a second paper support pivotally attached to the housing, the second paper support extending the first paper support.

Abstract: An anti-jam bezel is provided for dispensing a flexible substrate from an output slot. The output slot has a front portion for outputting the flexible substrate and a rear portion for receiving the flexible substrate from a transport. A guideway diverges away from the rear portion of the output slot toward the transport to provide a substrate receiving opening. When in use, the bezel body is mounted adjacent the transport with a cavity between the transport and the rear portion of the output slot. The guideway is adapted to catch a leading edge of the substrate exiting the transport, and guide the leading edge to the output slot. In the event the output slot is blocked, the guideway will guide at least a portion of the substrate into the cavity, thereby preventing a jam.

Abstract: Ridges and grooves are alternately formed on a platen in the direction of transporting sheets. Wave holding spurs are rotatably supported by torsion springs downstream of a recording area, and pressed against the grooves. Sheet discharge roller pairs are disposed generally downstream from the grooves. Recording sheets exhibit cockling which rises up toward a recording head due to swelling from ink, but a substantial amount of the swelling is contained in the grooves, so the cockling does not come into contact with the recording head, and further, the peak-to-peak distance of the wave shapes of the recording sheets can be reduced. Following the leading edge of a recording sheet passing the sheet discharge roller pairs, the crests of the cockling are collapsed by transporting spurs and divided between wave holding spurs and the transporting spurs, and thus the peak-to-peak distance is further reduced, consequently preventing off-target landing of ink droplets.

Abstract: An image forming apparatus in that a sheet having an image formed on a first side thereof by an image forming portion is again transported to the image forming portion so that an image may be formed on an opposite or second side of the sheet, the image forming apparatus including a sheet feeding portion, a re-transport path, a pair of registration rollers provided upstream of the image forming portion, and a loop forming space provided upstream of the pair of registration rollers so as to form the loop, wherein an entrance to the loop forming space for the sheet having passed along the re-transport path is formed downstream of an entrance to the loop forming space for the sheet fed from the sheet feeding portion.

Abstract: A recording apparatus is equipped with a recording head for performing recording on a conveyed recording medium by discharging liquid from a discharge opening array, and comprises a conveyor for conveying the recording medium, and a recording medium floating prevention member for preventing floating of the recording medium, wherein the floating prevention member includes a floating prevention area between the recording medium and the recording head, only on an upstream side, in the conveyance direction of the recording medium, of the discharge opening array of the recording head used in non-margin recording of performing the recording throughout the width of the recording medium. Thus, collision of the recording medium and the recording head can be prevented in both margin recording and the non-margin recording, without lowering recording speed and deteriorating recording quality.

Abstract: In a printer provided with a sheet reversing mechanism, and which can perform printing on both faces of a sheet by a common print head, reduction of the number of parts, prevention of a transport failure, and the like are realized by reversing the sheet while the sheet is clamped by one transporting roller pair. The printer includes a first sheet path. A print head is disposed on the first sheet path to perform printing on a recording sheet. A transporting roller pair includes a first roller and a second roller, adapted to transport the recording sheet in a first direction approaching the print head (toward an outlet) and a second direction opposed to the first direction (toward an inlet). A second sheet path is branched from the first sheet path at a branching position shifted from the first roller in the second direction, extending along an outer periphery of the first roller, and joined to the first sheet path at a joining position between the transporting roller pair and the print head.

Abstract: In an inkjet printing apparatus an inkjet printhead has a plurality of inkjet nozzles which eject ink onto media located within a print-zone. A drive shaft is located upstream of the printhead and is incrementally rotated to advance the media. The drive shaft has a longitudinal axis, a first radius over a central length and a second radius less than the first radius at a first recess and a second recess, each said recess being peripheral to the central length. A plurality of pinch devices stabilize the media against the drive shaft. A first guide is aligned with the first recess and is spaced from an axis of the drive shaft by a first distance which is less than the first radius. A second guide is aligned with the second recess and is spaced from the axis by a second distance less than the first radius.

Abstract: Accurate advance of a media sheet is achieved by carrying the media sheet on a belt loop. An upstream pinch roller holds the media sheet to the belt upstream of the print zone. A downstream pinch roller holds the media sheet to the belt downstream of the print zone. A guide shim extends along the media path from a position upstream of the upstream pinch roller, passed the upstream pinch roller toward the print zone. The guide shim advances with the bottom edge of the media sheet into the print zone to stabilize the trailing edge so as to allow for a smaller minimum bottom margin.

Abstract: A sheet guide device, which includes: a branch-off sheet guide path that is branched off from a sheet guide path that guides a sheet; a guide member that is rotatably disposed in a branch-off portion of the branch-off sheet guide path and selectively guides the sheet to respective sheet guide paths that are branched off in the branch-off sheet guide path; and a guide rotary member that is located in the branch-off portion and capable of rotating in a sheet transport direction, in which a rotational surface of the guide rotary member is protruded from a sheet guide surface of the guide member which guides the sheet.

Abstract: A recording apparatus has a feeding unit for storing and feeding a recording medium, a recording unit for recording information on the recording medium having been fed from the feeding unit, and a discharging unit for discharging outside the recording medium having been transported through the recording unit. In the recording apparatus, a warping part for warping the recording medium and supporting parts for supporting both side edges of the recording medium warped by the warping part are formed on a guide member disposed downstream of the recording unit.

Abstract: The present invention provides a capability to form an image along a trailing edge of the paper by the use of a trailing edge deletion prevention apparatus capable of manipulating the paper to allow components capable of forming the image to travel in proximity to the paper without obstruction. In various embodiments, the invention involves the use of a biasing member or an interdigitated support element, each providing a trailing edge deletion prevention capability.

Abstract: A recording apparatus has a sheet conveyor and platen provided with plural extrusions for supporting the sheet material in the recording area, the plural extrusions being arranged perpendicular to the conveying direction of the sheet material at designated intervals in a configuration of being extended in the conveying direction, plural sheet-discharging rollers downstream of each of the extrusions in the conveying direction and in the same position as each of the extrusions in the intersecting direction, plural first spurs for nipping a sheet material with the plural sheet-discharging rollers, and a second spur downstream of the first spur and between the plural sheet-discharging rollers in the intersecting direction, being driven to rotate following the movement of a sheet material to push down the sheet material between the plural extrusions, the lowest part of the second spur being arranged to be lower than the uppermost part of the sheet-discharging roller when the sheet material does not abut thereupon.

Abstract: A printing device including a feed roller assembly, a separation pad located adjacent to the feed roller assembly, and a printer housing having an access plate. The separation pad is user-accessible when the access plate is opened.

Abstract: A printer is provided with a media loader insert for removable insertion into an input tray of the printer. The media loader insert includes an insert body which defines a reduced-size media receptacle configured to receive small-size media for insertion into the printer input port. The insert body has a width corresponding to the width of letter-size paper, and thus is sized to fit securely within a conventional input tray. A width adjuster is provided adjacent the reduced-size media receptacle, the width adjuster being positioned centrally along a side edge of the reduced-size media receptacle to centrally engage a side edge of media within the reduced-size media receptacle, thereby reducing media skew.

Abstract: An image forming apparatus, which improves the stacking ability of a sheet and prevents contamination of an image formed surface at a low cost, includes a frame, an image forming portion forming an image on the sheet, a first conveying path through which the sheet on which the image is formed by the image forming portion is conveyed, a sheet discharge tray provided outside the frame and onto which the sheet conveyed through the first conveying path is discharged so as to be accommodated on the sheet discharge tray. A sheet discharging roller rotatable in a direction of discharges the sheet onto the sheet discharge tray in a reverse direction thereof.

Abstract: A method and apparatus is described for feeding a print media through a closed, curved path such that any abrasion of any special coating on the printing surface of the media is prevented. A motor driven pulley subsystem bridging the entrance and exit of the path is selectively adjustable to change the positioning and shape of the media as it passes therethrough.

Abstract: A recording head has a head face on which at least one row of dot forming elements which form dots on a recording medium is arranged in a subscanning direction thereof. A drive feeding roller extends in a main scanning direction of the recording head. A plurality of driven feeding rollers are arranged in the main scanning direction with a predetermined interval, such that the recording medium is nipped between the drive feeding roller and the driven feeding rollers to be fed to the recording head. A plurality of medium regulators are arranged in the main scanning direction with a predetermined interval which is associated with the arrangement of the driven feeding rollers. The medium regulators are opposed to the head face such that top faces define a distance between the recording medium carried thereon and the head face.

Abstract: An ink jet recording apparatus includes a transporting roller for transporting a recording sheet to a recording section of the apparatus; a pre-biasing roller disposed upstream of the transporting roller relative to the direction of transportation of the recording sheet and arranged to impart to the recording sheet such a tendency that both lateral end portions of the recording sheet are curled away from a recording head; and a platen having a guide surface for guiding and supporting the recording sheet. An aperture is formed in the platen so as to oppose the recording head and so as to extend in the width direction of the recording sheet. The aperture has a predetermined width and a sloping surface so as to extend downward in the direction of transportation of the recording sheet.

Abstract: An ink jet recording apparatus using ink to be discharged from a plurality of ink discharge ports of a recording head comprises a holding unit for holding the recording head for recording on a recording sheet; a conveyor for conveying the recording sheet; and a recording sheet supporting member arranged at the position to face the recording head. The recording sheet supporting member is provided with a supporting surface to support the non-recording surface of the recording sheet, and is arranged in a direction intersecting the conveying direction of the recording sheet.

Abstract: A print-medium transport unit including discharge rollers, a paper guide, and a lock member. The discharge rollers transport post-printed paper toward an outlet and can hold the leading end of the paper. The paper guide is placed upstream from the discharge rollers, and guides the leading end of the paper into the discharge rollers. The paper guide is rotatably supported so that the upstream side thereof opens a transport path of the paper, whereby when the leading end of the paper is held by the discharge rollers, the transport path allows the paper to be curved like a loop. The lock member locks the rotation of the paper guide when the leading end of the paper is guided into the paper guide. When the leading end of the paper reaches a predetermined position, the locking of the lock member is released.

Abstract: A printer having a media transport mechanism defining a media path. The path extends from a media supply past a print engine. A media alignment element moves between an extended position intersecting the path between the supply and the engine, and a retracted position away from the path. The printer may include a pair of rollers between the supply and the alignment element and encompassing the path, so that the sheet may be gripped by the rollers at a position adjacent the alignment to preserve the alignment by the element. The rollers may retract the sheet from the alignment element, which may move aside from the media path, so that the media may be fed toward a print engine.

Abstract: A media discharging device for an ink-jet printer includes a rubber roller and star roller. A pair of paper guides are arranged on both sides, with respect to its rotary shaft of, the star roller, opposing each other and close to the star roller. Each paper guide has a slant which is inclined gradually upward in the paper discharge direction. This slant is positioned offset with respect to the path of movement of the projections on the star roller towards the paper discharge side, so as to prevent the rear edge of the recording paper from dropping into the recessed portions of the star roller.

Abstract: An apparatus for transporting single sheets through a device for exposing or printing the single sheets, with a drum and means that press the single sheet against the drum, with a processing station having a processing gap, with the single sheets being exposed or printed in the processing station, includes means that limit the processing gap. According to the invention, the means for limiting the processing gap are moveable so said the distance between the drum and the means for limiting the processing gap can be increased or decreased.

Abstract: A printer comprises a loader (2) for supports (1) to be printed, a printing device (9) and transfer elements delimiting a series of gripping regions (8) forming a transport path (8A) to lead sequentially the printed supports (1) from the outlet (5) of the loader (2) to the printing device (9) and from the printing device (9) toward collection elements disposed below the loader (2). At least the portion of a wall (7) with an opening (4) of the loader (2) is inclined at a positive angle relative to the transport path (8A) to give to the support (1) to be printed an inclination in the inlet direction of a first gripping region (8) of the transport path (8A). The inlet is provided with a deflector (11).

Abstract: A method and apparatus for flattening a substrate against a surface of a platform is provided. The method comprising positioning guides within a platform so that opposite edges of a substrate placed on the platform do not come in contact with at least one print head in close proximity over the substrate.

Abstract: A recording apparatus for effecting recording on a recording medium by a recording head having a first recording portion and a second recording portion includes a recording medium conveying path for conveying the recording medium in opposed relationship with the recording head, and a reversing mechanism portion disposed in the recording medium conveying path, the reversing mechanism portion spacing a first side of the recording medium apart from the first recording portion, and thereafter reversing the recording medium so as to oppose a second side of the recording medium to the second recording portion.

Abstract: A second passage 20 is arranged on a side opposite to a discharge port 16 relative to a first passage 18. Additionally, an intercepting member 24 is provided which intercepts the communication between the first passage 18 and the insertion port 14 and allows the insertion port 64 to communicate only with the second passage 20, at a portion of the first passage 18 near the insertion port 14, whereby the intercepting member 24 intercepts the communication between the first passage and the insertion port 14 at a prescribed timing.

Abstract: A printer with a media transport has a rigid, air-transmissive platen. A movable air-transmissive flexible web overlies the platen and moves along a feed axis. A suction device communicates with the platen to draw air through the web and through the platen so that a sheet of media carried on the web is biased toward the platen. A manifold underlies the platen and has a number of separate chambers open to the platen, so that the suction device is connected to each of the chambers. A controller operates to selectably prevent communication between the suction device and at least some of the chambers.

Abstract: A paper discharge apparatus wherein a movable guide plate (23) is closed to guide a sheet of paper (P) when discharging paper (P), and is tilted downward to open a portion below a first conveyor passage (R1) when keeping or collecting paper (P) within the apparatus. The movable guide plate (23) is tilted downward to force paper fall for collection. This apparatus can stably issue and collect sheets of paper by reliably preventing jamming and stagnation of the sheets even when they have wrinkles and strong curls or when they are weakened.

Abstract: A recording apparatus has a feeding unit (110) for storing and feeding a recording medium, a recording unit (120) for recording information on the recording medium having been fed from the feeding unit, and a discharging unit (130) for discharging outside the recording medium having been transported through the recording unit. In the recording apparatus, a warping part (131a) for warping the recording medium and supporting parts (133) for supporting both side edges of the recording medium warped by the warping part are formed on a guide member disposed downstream of the recording unit.

Abstract: The present invention describes a double belt transport system for moving a mailpiece into a printing area of a digital printer. The transport system includes an upper belt and a lower belt. The upper belt has a straight section to form a nip with the lower belt to ingest the mailpiece. The straight section also defines a registration plane to register the upper surface of the mailpiece with respect to the print head of the printer. In order to make sure the registration is consistent regardless of the thickness of the mailpiece, an up-lifting mechanism is used to push the bottom of the mailpiece in an upward direction against a shield plate, which is positioned substantially on the registration plane. A velocity measurement device, such as an optical encoder, is used to measure the moving speed of the belts so that the printing speed of the digital printer matches the moving speed of the mailpiece in the print area.

Abstract: A recording apparatus for recording an image on a sheet material, includes an outer case having a box-shape, a convey path for conveying a sheet material within the outer case, a recording device disposed within the outer case and adapted to effect recording on the sheet material conveyed by the convey path. Opening portions formed in the outer case provide an inlet and an outlet of the convey path. A lid member closes at least one of the opening portions defining the inlet and the outlet, and wherein flexion of the outer case is reduced by closing the opening portion or portions by means of the lid member.

Abstract: A paper jamming prevention device includes a conveying portion for conveying a sheet of paper from a paper feeding portion according to a feed command; a discharging portion for receiving the conveyed sheet of paper for discharge; and a base frame, installed between the conveying portion and the discharging portion, having a flat surface disposed toward the conveying portion and a curved conveyance surface disposed toward the discharging portion, the conveyance surface deviating from the flat surface toward the discharging portion. The conveyance surface has a curved middle region and side regions which slope symmetrically upward on each side of the base frame. The discharging portion is made up of discharging rollers and star wheels installed along the curvature of the conveyance surface.

Abstract: A hardcopy apparatus includes a media holddown unit, having a platen, and a vacuum source for generating negative pressure on a medium positioned on said platen to keep it flat on said platen. The unit includes at least two vacuum chambers, both in air communication with the vacuum source. Each of the vacuum chambers can apply a negative pressure to a different portion of the medium positioned on a corresponding different region of the platen. A method for holding down a medium when placed on said platen. First the vacuum source is placed into independent air communication with a number of distinct regions of the platen, then the medium is positioned to cover one or more regions of the platen, and finally a negative pressure is applied to the back of the medium via the independent air communication.

Abstract: A method and apparatus is described for feeding a print media through a closed, curved path such that any abrasion of any special coating on the printing surface of the media is prevented. A motor driven pulley subsystem bridging the entrance and exit of the path is selectively adjustable to change the positioning and shape of the media as it passes therethrough.

Abstract: A media handling system for handling sheets of media. The system includes a pick roller having a circumferential media-contacting surface and arranged for rotation about a roller axis to contact and pick a sheet from an input source. A drive roller rotates about a drive roller axis, with a media path extending between the pick roller and the drive roller. A first guide structure is positioned along a first longitudinal edge of the media path and providing a first media guide surface. A second guide structure is positioned along a second longitudinal edge of the media path and provides a second media guide surface. The first and second guide surfaces are positioned to constrain the movement of a media sheet in the media path between the pick roller and the drive roller, thereby alleviating trailing edge print defects.

Abstract: A printer for printing on both sides of a document includes first printing document guides, through which a document is driven for printing on a first side of the document, second printing document guides, through which the document is driven for printing on a second side of the document, and transfer document guides, into which the document is driven between motions within the first and second printing document guides, with a deflector determining the printing document guide into which a document is driven from the transfer document guides. A print head is pivotally mounted between the printing document guides, being pivoted between a position adjacent the first printing document guides and a position adjacent the second printing document guides.

Abstract: An ink jet recording method forms an ink jet image on a recording medium by serially moving an ink jet recording head having a plurality of ink discharge ports arranged in an array along a conveyance direction of the recording medium. The method includes the step of providing a platen having a planar section upstream in the conveyance direction and a slant section slanted downstream in the conveyance direction and in a direction parting from the ink discharge ports, opposed to an array of the ink discharge ports when the ink jet recording head serially moves. The method further includes the step of forming an ink jet image on the recording medium by ink discharge from the ink discharge ports when the ink jet recording head moves at least three times across a same area of the recording medium, a reverse side of which is supported by the platen.

Abstract: A printer for printing on both sides of a document includes first printing document guides, through which a document is driven for printing on a first side of the document, second printing document guides, through which the document is driven for printing on a second side of the document, and transfer document guides, into which the document is driven between motions within the first and second printing document guides, with a deflector determining the printing document guide into which a document is driven from the transfer document guides. A print head is pivotally mounted between the printing document guides, being pivoted between a position adjacent the first printing document guides and a position adjacent the second printing document guides.

Abstract: An apparatus and method designed to eliminate dog-earring of the comers of the open edges of a folded signature or book without the need for the use of electrostatic adherence. A guide mechanism is provided between a tape drive, a divert cylinder and/or a deceleration drum. The guide mechanism is preferably located at the position of the open edges of the signature which is being transferred. The guide mechanism is preferably of a width which accommodates variations in the folded width of the folded signature or books. The guide mechanism includes a series of narrow slots, or micro-slots, across its width. The gripping devices which are located in the area of the guide mechanism include a series of narrow fingers, or micro-fingers, across their width. The micro-fingers of the gripping mechanisms are designed to pass through the micro-slots of the guide mechanism.

Abstract: A thermal printer for a portable electronic device such as a receipt issuing machine is capable of increasing an angle at which thermal recording paper is wound on a platen roller while decreasing running load and without generating static electricity. The thermal printer includes a body frame formed from metal, a thermal head disposed on a bottom part of the body frame for printing paper and a platen roller for urging the paper against the thermal head. A paper guide for guiding the paper to a direction in which the paper is wound on the platen roller is integrally formed with the body frame. A bend-raise portion extending in a paper-width direction of the paper and contacting linearly to the paper while feeding is integrally formed at a part of the paper guide where the paper is inserted. The paper guide is formed in such a manner that it comes close to the platen roller with respect to the bottom of the body frame.

Abstract: A printer is provided with a path size switching plate (10) between a recording paper roll and an aligning device (15) for aligning a recording paper with a paper transport path. The path size switching plate limits the paper transport path in a direction of thickness of the recording paper while the recording paper is being conveyed in a paper supply direction, preventing the recording paper from getting jammed. While the recording paper stops and the aligning device pushes opposite side edges of the recording paper for alignment, the path size switching plate widen the paper transport path in the direction of thickness of the recording paper, so as to make a loop for absorbing torsion applied to the recording paper between the recording paper roll and the aligning device as a result of alignment.