Abstract: A conveyance route switching mechanism and a paper sheet handling apparatus that includes the conveyance route switching mechanism include a driving source, a gate, a first gear, and an internal gear. The driving source includes a driving shaft. The gate includes a gate shaft, and a blade that is provided on the gate shaft, and switches conveyance routes of paper sheets. The first gear is provided on the gate shaft. The internal gear meshes with the first gear. According to rotation of the driving shaft, the gate shaft rotates on an axis of the gate shaft, and revolves with the driving shaft as a rotation center while the first gear meshes with the internal gear.

Abstract: An automatic document feeder includes a media path to route media through the automatic document feeder, at least one media tray to one of supply the media to the media path and receive the media from the media path, and an automated media tray extender at an end of the media tray, the automated media tray extender to be positioned based on a presence of the media in the media tray.

Abstract: Disclosed are a sheet-type medium conveying device and a cash recycling and handling apparatus. The sheet-type medium conveying device includes a first passage plate, a second passage plate and a driving mechanism. The first passage plate and the second passage plate are oppositely arranged. A passage is formed between the first passage plate and the second passage plate, and configured for a sheet-type medium to pass through. The driving mechanism is configured to drive a first end of the first passage plate and a first end of the second passage plate to get close to or away from each other.

Abstract: An image reading apparatus includes a separating roller that is capable of switching between a separation state in which an original document is separated and a non-separation state in which the original document is not separated, and determines whether or not the original document is fed in the separation state or the non-separation state based on the types of the original document set through a user interface for instructing a select of the types of the original document to be read and a start of reading the original document.

Abstract: An automated teller machine includes a cassette, a strongbox protection wall, an external conveyance path, and a plurality of external branch conveyance paths. The cassette includes a plurality of storage parts configured to store a paper medium, and a case having a plurality of entrances through which the paper medium passes to be accumulated in the storage parts or is withdrawn from the storage parts to pass. The strongbox protection wall covers the cassette and has an external entrance through which the paper medium passes to be loaded into the cassette and is unloaded from the cassette to pass. The external conveyance path extending to penetrate the strongbox protection wall through the external entrance. The plurality of external branch conveyance paths extends between the external conveyance path and the entrances of the case, respectively.

Abstract: A recording apparatus includes a housing that houses a recording unit that performs recording on the medium transported by a transport unit, a cutting unit that is disposed downstream of the recording unit and that cuts the medium, a discharge unit that is disposed downstream of the cutting unit and that discharges the medium, a storage unit that is disposed below the cutting unit and that is configured to store cutting waste of the medium, and a receiving unit that is disposed downstream of the discharge unit and that has a receiving surface configured to receive the medium discharged from the discharge unit, wherein the storage unit and the receiving unit are integrated, and the integrated storage unit and receiving unit are configured to be detachable from the housing.

Abstract: In order to provide a sheet stacking apparatus for maintaining alignment characteristics of long-length sheets, the sheet stacking apparatus is a sheet stacking apparatus located above in a pair of sheet stacking apparatuses provided to overlap vertically along a vertical direction, and is provided with a first stacking section for stacking sheets, a second stacking section provided to extend from a downstream end of the first stacking section in a sheet transport direction and connected to the first stacking section rotatably, and a third stacking section which is attached to the second stacking section to extend from a downstream end of the second stacking section in the sheet transport direction, includes an inclined angle with respect to a horizontal surface smaller than in the second placing face, and which is attachable and detachable with respect to the second stacking section in a rotation direction.

Abstract: A recording device includes a housing including a recording mechanism unit configured to perform recording on a target recording medium, and a recording mechanism unit cover configured to rotate, by a rotational shaft along a first side surface of the housing, between an open state of an upper surface of the housing being open and a closed state of the upper surface of the housing being closed. The recording mechanism unit cover is configured to be inside the housing in the closed state and a second side surface and a third side surface of the recording mechanism unit cover that intersect the first side surface of the housing in the closed state are provided with a rib configured to support a second side surface or a third side surface of the housing that intersects the first side surface of the housing.

Abstract: The image forming apparatus includes a side panel and a manual feed tray that is rotatable and installed on the side panel. The side panel includes an opening portion through which a sheet placed on the manual feed tray passes when the sheet is fed into the image forming apparatus. The manual feed tray includes an end cursor that is movable, and a guide portion that guides movement of the end cursor in a direction perpendicular to a rotational center of the manual feed tray. The opening portion is sized to accommodate the end cursor. When the opening/closing angle of the manual feed tray with respect to a horizontal direction exceeds a predetermined angle, the end cursor moves along the guide portion by gravity to a position where the end cursor can be accommodated in the opening portion.

Abstract: A document sheet length detection portion detects document sheets placed on a tray while distinguishing between a first size document sheet whose length in a conveyance direction is equal to or longer than a reference length, and a second size document sheet whose length in the conveyance direction is shorter than the reference length. A selection portion selects, as a specified conveyance process, one of a first conveyance process and a second conveyance process. A control portion, after a predetermined start event occurs, causes a conveyance device to execute the second conveyance process when the second conveyance process has been selected as the specified conveyance process and the document sheet length detection portion has detected the first size document sheet, and causes the conveyance device to execute the first conveyance process when a number of document sheets conveyed during the second conveyance process has reached an upper-limit number.

Abstract: A scanner includes: a first body having a window and a guide structure; a transparent platen connected to the first body to cover the window; a first sheet disposed on the transparent platen and in the window; a second sheet fixedly disposed on the transparent platen, in the window and on the guide structure, wherein the first sheet is thicker than the second sheet to form a cliff-sheet type guiding structure as a first part of a transporting passage; a scanning module disposed in the first body; a second body having a second part of the transporting passage; and a transporting mechanism being disposed in the second body and transporting a document along the transporting passage, so that the scanning module scans an image of the document through the window.

Abstract: A transfer device includes: a transfer member to which a voltage is applied by a power supply device to generate a transfer electric field for transferring a developer image to a recording medium; a transfer cylinder having a recess in which a retaining member that retains a leading end portion of the recording medium is disposed, the transfer electric field being generated between the transfer cylinder and the transfer member at a transfer position; a shunt circuit by which the voltage applied to the transfer member is shunted to a reference potential point; and an operation stopping mechanism that starts and stops an operation of the shunt circuit in response to rotation of the transfer cylinder, the operation being started when the recess reaches the transfer position and stopped when the recess leaves the transfer position.

Abstract: A medium support device includes: a first support section that transits between a first position and a second position relative to a main body; a second support section that transits between a retracted position and a protruding position relative to the first support section; and a locking mechanism configured to set a lock the second support section. When the first support section is in the first position and the second support section is retracted into the first support section, the retracted state is formed. When the first support section is in the second position and the second support section protrudes from the first support, the extended state is formed. The locking mechanism locks the second support section retracted into the first support section when the first support section is in the first position and releases the lock when the first support section is in the second position.

Abstract: A money handling apparatus for performing at least depositing includes: a casing; a depositing unit; a recognition unit configured to at least count or recognize money fed from the depositing unit; an inner storage unit from which the money stored therein is unremovable directly from the outside of the casing; an outer stacking unit from which the money stacked therein is removable directly from the outside of the casing; a transport unit configured to transport the money among the above-described units; and a controller configured to allow selective transport of the money handled by the recognition unit to the inner storage unit, or the outer stacking unit. The controller transfers the money to the inner storage unit when a first deposit mode is selected by a selection signal, or transfers the money to the outer stacking unit when a second deposit mode is selected.

Abstract: A transport device includes: a first nipping part having an outer surface; a second nipping part having an outer surface, the second nipping part being configured to form, with the first nipping part, a nip region in which a recording medium is nipped by bringing the outer surface of the second nipping part into contact with the outer surface of the first nipping part, the second nipping part being relatively movable between a first position at which a distance from the second nipping part to the first nipping part is a first distance at which the nip region is formed and a second position at which the distance from the second nipping part to the first nipping part is longer than the first distance; a transport part including a holder that holds a front end side of the recording medium, the transport part being configured to move the holder to transport the recording medium to pass through the nip region together with the holder while the recording medium is being held by the holder; and a moving mechanism co

Abstract: An image reading apparatus includes a separating roller that is capable of switching between a separation state in which an original document is separated and a non-separation state in which the original document is not separated, and determines whether or not the original document is fed in the separation state or the non-separation state based on the types of the original document set through a user interface for instructing a select of the types of the original document to be read and a start of reading the original document.

Abstract: A medium ejection apparatus includes an ejection roller pair configured to eject a medium, a driving device configured to rotate at least one roller of the ejection roller pair, a processor for detecting a size of the medium, and controlling the driving device to increase a rotation speed of the at least one roller to be higher than a previous rotation speed, from a predetermined timing after a rear edge of the medium passes through a nip position of the ejection roller pair. The processor changes the predetermined timing in accordance with the size of the medium.

Abstract: A conveying device includes a first guide section, a second guide section, and an urging section. The second guide section has a guide center portion and pivots about the guide center portion. The second guide section is pivotable between a guide position and a separation position. The guide position is a position in which the second guide section is located when a conveyance path of a sheet is formed between the second guide section and the first guide section. When the second guide section is in the guide position, the urging section urges the second guide section in a first pivot direction.

Abstract: A recording head unit includes a line-head module including a plurality of recording heads to discharge a liquid, and a main plate to which the line-head module is mounted. The line-head module includes a first adjustment portion to adjust a position of the line-head module relative to the main plate in a longitudinal direction of the line-head module, and a second adjustment portion to adjust a position of the line-head module relative to the main plate in a rotational direction of the line-head module.

Abstract: In a printer that drives by a ribbon motor (302), a winding axle that holds an ink ribbon positioned between a thermal head that performs a photographic printing operation with respect to a photographic medium conveyed along a sub-scanning direction and a platen that opposes the photographic print head with the photographic medium between the photographic print head and the platen, a flywheel (303) is coupled to a shaft of the ribbon motor (302), and a rotational force of the ribbon motor (302) is transmitted to the winding axle, via a worm gear (501) and a helical gear (502).

Abstract: A manual feed tray includes a tray body and a lift unit, and the lift unit includes a lift plate, a lift spring and a pair of cursors. The cursor includes a guide portion. When the manual feed tray is closed from a sheet feeding state of the lift plate, the guide portion comes into contact with a facing wall portion, whereby a downstream side of the lift plate in a covering direction moves downward. Thus, even if the manual feed tray is closed with the lift plate moved upward, the lift plate smoothly moves downward.

Abstract: A recording apparatus is provided that is able to increase the medium load capacity of a receiving portion in a configuration provided with a mounting portion and receiving portion.

Abstract: A printing apparatus includes a print section, a supply path, a correction roller pair, an adjusting mechanism and a controller. The print section is configured to perform printing on a medium. The supply path is configured to supply the medium to the print section. The correction roller pair is configured to enable the medium transported on the supply path to strike the correction roller pair to correct skewing of the medium. The adjusting mechanism adjusts a nip load applied to the correction roller pair. The controller is configured to control the adjusting mechanism based on print job information. The correction roller pair includes a driving roller that has a plurality of convex portions disposed on a peripheral surface along a circumferential direction of the driving roller and a driven roller that is disposed to face the driving roller to be driven by the driving roller.

Abstract: A method of converting a standard CMYK color toner printer to a CMYK or CMYW sublimation color toner printer. Providing a standard CMYK color toner printer, comprising four toner printing cartridges: a cyan toner printing cartridge, a magenta toner printing cartridge, a yellow toner printing cartridge, and a black toner printing cartridge. Removing the four toner printing cartridges, such that four empty toner cartridge slots are created. Providing four sublimation toner printing cartridges: a cyan sublimation toner printing cartridge, a magenta sublimation toner printing cartridge, a yellow sublimation toner printing cartridge, and a black sublimation toner printing cartridge, or a white sublimation toner printer cartridge. Installing the four sublimation toner printing cartridges into the four empty toner cartridge slots.

Abstract: There is provide a conveying apparatus conveying a sheet including: a main body formed with a conveyance path; a first feed tray installable in the main body at a first position; a discharge tray; and a first regulating section performing regulation for regulating movement of the first tray, in a state of being located at a second position, toward the other side in a first direction. The first regulating section is configured to release the regulation, in a case that the first feed tray, at the second position, is moved upwardly by a first predetermined moving amount. A spacing distance in the up/down direction between the first feed tray and the discharge tray is shorter than the first predetermined moving amount. The discharge tray is configured to be move upwardly by being contacted with the first feed tray in a case that the first feed tray is moved upwardly.

Abstract: A sheet transport apparatus is equipped with a sheet transport guide section for guiding a sheet to be transported. The sheet transport guide section includes a first transport guide member swingable about a first axis, and a second transport guide member swingable about a second axis, the second transport guide member forming a sheet transport path between the second transport guide member and the first transport guide member. The second transport guide member is arranged at a first position when the first transport guide member is closed, at a second position where the second transport guide member is opened from the first position when the first transport guide member is opened, or at a third position where the second transport guide member is opened from the second position.

Abstract: A printing apparatus includes a printing unit that prints an image on a sheet by using ink, a feed path along which the sheet is transported toward the printing unit, a switchback mechanism that, when two sides of the sheet are to be printed, switches back the sheet of which one of the two sides has been printed and sends the sheet to the feed path, and a correction roller pair capable of correcting skew of the sheet by having firm contact with the sheet transported along the feed path.

Abstract: A printing apparatus includes a print section to perform printing on a medium, a supply path to supply the medium to the print section, a correction roller pair to enable the medium transported on the supply path to strike the correction roller pair to correct skewing of the medium, an adjusting mechanism for adjusting a nip load applied to the correction roller pair, and a controller to control the adjusting mechanism based on print job information.

Abstract: The present sheet conveying apparatus includes: a resist roller pair that corrects skew of a sheet conveyed from a sheet supplying unit; and a guide portion disposed at an upstream side relative to the resist roller pair in a sheet conveying direction, the guide portion including a first guide and a second guide disposed opposite to the first guide with a sheet conveying path therebetween, the second guide being located at a projection side of a curved portion formed in the sheet when a tip of the sheet is conveyed to a nip portion of the resist roller pair that is stopped, the second guide being divided into a plurality of divided guides in an axial direction of the resist roller pair, a flexible film being disposed to cover at least a portion of a space between the plurality of divided guides.

Abstract: A reading apparatus which is connected to an image forming apparatus that forms an image on a recording medium, the reading apparatus including: a supporting section which forms a reading surface for reading the image on the recording medium by contacting the recording medium on which the image is formed by the image forming apparatus; a conveyance section which conveys the recording medium so that the recording medium contacts the supporting section from a leading direction at a predetermined leading angle with respect to the reading surface and moves apart from the supporting section to an ejection direction at a predetermined ejection angle with respect to the reading surface; and a reading section which reads the image on the recording medium at a position where the reading surface is formed.

Abstract: A printing system capable of accurately positioning a lenticular array in registration with a rectilinear raster includes a printer that is capable of printing onto a printable surface. The printer has a main support surface on which the printable surface rests. The system further includes a series of raised parallel relief features being spatially formed along a printable substrate that is supported by the main support surface. The raised parallel relief features are raised to a sufficient height above the printable substrate such that when the lenticular array is disposed upon the raised parallel relief features, each raised parallel relief feature fits and is disposed within a valley formed between two respective adjoining lenticules of the lenticular array.

Abstract: A sheet conveying device includes a conveyor, a first cover, a second cover movable in conjunction with the first cover, and a restricting portion movable between a restricting position at which the second cover is restricted from being moved from a first position toward a second position and an allowable position at which the second cover is allowed to be moved from the first position toward the second position. The restricting portion is located at the restricting position when the first cover is located at the closed position, and the restricting portion is moved from the restricting position to the allowable position in conjunction with the first cover when the first cover is moved from the closed position toward the opened position.

Abstract: A reading device includes a conveyance control section for controlling document conveyance. In a case of double-sided reading of a document and with a cutout document mode applied, the conveyance control section stops a pair of reverse-rotation rollers at a time point when the document has been conveyed by a distance resulting from adding an additional distance, which is predetermined or determined based on a recognized cutout width in the document conveyance direction, to a reference distance since a time point of passage of a rear end of a document-detecting detection part, and thereafter start reverse rotation of the pair of reverse-rotation rollers.

Abstract: A sheet supplying apparatus includes a supply part, a cover, a base tray, an interlock mechanism, and an auxiliary tray. The supply part is provided in the apparatus body. The cover is provided to be turnable between a close position and an open position. The base tray composes a part of a loading surface on which the sheet is loaded, and is movable in a conveyance direction with respect to the cover. The interlock mechanism moves the base tray by interlocking with the cover turning, and moves the base tray by interlocking with the cover turning. The auxiliary tray is displaceable between a storage position and a raising position. An engage part includes a lifting part. The lifting part comes into pressure contact with an engaged part and displaces the auxiliary tray from the storage position to the raising position.

Abstract: A printing device for implementing printing on a medium includes a detection unit and a control unit. The detection unit is configured to detect loading of the medium into the printing device and withdrawal of the medium from the printing device. The control unit is configured to indicate contents displayed on a display screen. The control unit is further configured to generate a first signal of displaying a first screen on the display screen when the detection unit detects that the medium has been withdrawn from the printing device, and generate a second signal of displaying a second screen different from the first screen on the display screen when the detection unit detects that the medium has been loaded into the printing device.

Abstract: A sheet conveying device includes: a supporter which support a sheet to be supplied or a discharged sheet. The supporter includes: a first cover pivotable between a closed position and an open position and capable of supporting the sheet when the first cover is located at the open position; and a second cover pivotable between a first position and a second position and constituting a portion of an exterior of the sheet conveying device with the first cover when the second cover is located at the first position. The second cover has a first end portion contactable with the first cover located at the closed position. The first end portion is kept in contact with the first cover throughout a period in which the second cover is pivoted from the first position to the second position.

Abstract: A sheet conveying device includes a conveyor, a first cover, a second cover movable in conjunction with the first cover, and a restricting portion movable between a restricting position at which the second cover is restricted from being moved from a first position toward a second position and an allowable position at which the second cover is allowed to be moved from the first position toward the second position. The restricting portion is located at the restricting position when the first cover is located at the closed position, and the restricting portion is moved from the restricting position to the allowable position in conjunction with the first cover when the first cover is moved from the closed position toward the opened position.

Abstract: An imaging device includes a printhead and a detector configured to generate an electronic signal indicative of an increase in height in a portion of a media before such portion of the media passes the printhead. The imaging device also includes a vacuum source operable to pull the portion of the media having the increase in height away from the printhead so the media does not impact the printhead. The vacuum source is positioned below an opening in a platen opposite the printhead.

Abstract: A stent delivery system includes a housing that houses a rotary roller, a support body in sliding contact with the outer surface of the rotary roller, and a resilient member composed of a coil spring acting on the support body. If, for any reason, it becomes difficult to axially move a rack member and an operator forcibly rotates the rotary roller, a load of not less than a predetermined value is applied to the rotary roller and the rotary roller moves downward while the support body is being pushed down, and meshing engagement between the rack member and the rotary roller is released. Axial movement of the rack member is thus avoided as there is no transmission of the rotating force of the rotary roller to the rack member. Other embodiments are also disclosed for preventing transmission of the rotating force of the rotary roller to the rack member.

Abstract: According to one aspect of the inventive concept there is provided a method of providing an adjusted digital image representation of a view, the method comprising providing a set of images, wherein the images of said set depict a same view and are captured with a digital camera using different configurations of the digital camera; determining an initial representation of the view by providing a primary image based on image data of at least a first image of said set; sending the primary image for presentation of the initial representation on a display; providing a secondary image based on image data of at least a second image of said set, wherein the first image and the second image are different images; and sending, in response to receiving a user command, the secondary image for presentation of an adjusted representation of the view on the display.

Abstract: A printing medium supplying apparatus may include a body, a feed tray configured to rotate between a first position in which the feed tray forms an external appearance of the body and a second position in which a printing medium is loaded, a knock-up plate provided on the feed tray configured to ascend and descend, a pickup roller configured to make contact with the loaded printing medium as the knock-up plate ascends, and a rotating lever configured to allow the knock-up plate to be restricted at a side of the feed tray when the feed tray rotates from the first position to the second position. Accordingly, the knock-up plate are restricted and released together with operations of the pickup roller and the feed tray.

Abstract: A printer apparatus comprises an insertion and discharging port; a first paper conveyance path configured to convey a first printing medium inserted from the insertion and discharging port in a downstream direction towards a given printing position, and convey the first printing medium in a direction opposite to the downstream direction to discharge the first printing medium from the insertion and discharging port; a first printing section configured to carry out printing on the first printing medium conveyed to the printing position; a second printing section configured at the downstream side of the first printing section when seen from the direction of the insertion and discharging port to have a printing method different from that of the first printing section; a second paper conveyance path configured to merge with the first paper conveyance path at the downstream side of the first printing section of the first paper conveyance path to discharge a second printing medium printed by the second printing sect

Abstract: When images of a plurality of document sheets are to be read and formed on a plurality of recording materials, an image forming apparatus performs control to convey a document sheet and a recording material at one of a recording material conveyance speed and a document conveyance speed, whichever is lower.

Abstract: A document reading device is capable of facilitating attachment/detachment of a reading unit provided inside a U-shaped document conveying path formed in a document conveying device. The document reading device includes a U-shaped document conveying path extending from a sheet supply tray to a sheet discharge tray through a reading section and a reading unit disposed inside the U-shaped document conveying path, a downstream part of the sheet supply tray on which a document is placed and a guide member provided upstream of the document conveying path to continue from the sheet supply tray and is arranged to be attachable/detachable with respect to the sheet supply tray or document conveying path. The reading unit is removable from inside the U-shaped document conveying path through an opening through which the downstream part of the sheet supply tray and guide member of the document conveying path are removed.

Abstract: A sheet feeding device includes a feeding tray, a conveying device, an ejecting tray, a feeding guide and a conveying rib. On the feeding tray, a sheet is placed. The conveying device feeds the sheet on the feeding tray to an image reading device. The ejecting tray receives the sheet after image reading. The feeding guide is configured to be movable in a direction intersecting a feeding direction of the sheet and to regulate a position in a width direction of the sheet on the feeding tray. The conveying rib is configured to be movable in interlocking with movement of the feeding guide and to lead the sheet to be ejected onto the ejecting tray.

Abstract: An image reading device includes a transparent plate and a CIS. The transparent plate has a placement area in which an original document is placed and a transport area which corresponds to a transport position of the original document by a transport device. The CIS reads an image of the original document via the transparent plate. The transport device includes an inverting path at a position on the transparent plate opposite to the placement area seen from the transport area. On a second surface side of the transparent plate, the CIS is moved among a first reading area which corresponds to the placement area of the transparent plate, a second reading area which corresponds to the transport area of the transparent plate, and a standby position defined below the inverting path of the transport device.

Abstract: A recording apparatus includes a medium supporting section that supports a recording medium, a recording section that performs a recording on the recording medium, and a medium path that has a first face and a second face facing each other, and that transports the recording medium through between the first face and the second face. The first face has a shape which is convex toward the second face. A plurality of rollers which are lined up in a transport direction of the recording medium are arranged on the first face.

Abstract: An image forming apparatus includes a reading unit, a document conveyance unit, a sheet storage unit, a printing unit, a first and second determination unit, and a control unit. The reading unit reads a document. The printing unit performs printing on a sheet fed from the sheet storage unit. The first determination unit determines a first size of the document based on a size of a sheet stored in the sheet storage unit. The control unit causes the document conveyance unit to convey the document and causes the reading unit to read the document based on the determined first size. The second determination unit determines a second size of the conveyed document. In response to the determined first size not matching the determined second size, the control unit causes the document to be conveyed again and causes the document to be read again based on the determined second size.

Abstract: A sheet medium processing device comprising a stacking mechanism mounted on a frame, a first switching mechanism and a retractable paper baffle adjacent to the medium exit of the stacking mechanism; the stacking mechanism comprises a lower ticket stacking assembly, an upper ticket stacking assembly capable of moving parallelly above the lower ticket stacking assembly and a parallel movement confining mechanism, wherein the upper ticket stacking assembly and the lower ticket stacking assembly are both belt-conveyor mechanisms, and the belt of the upper ticket stacking assembly has a tendency of tightly pressing against the belt of the lower ticket stacking assembly. The first switching mechanism simultaneously controls the reciprocation of the paper baffle and the parallel movement of the upper ticket stacking assembly, enabling the stacking mechanism to be selectively provided with a transport state and a stacking state.

Abstract: A sheet container, which is incorporated in an image forming apparatus, includes a container body having a loading face to load a sheet thereon, an extension unit disposed extendable in a sheet feeding direction with respect to the container body to extend the loading face, a length regulator disposed movable in the sheet feeding direction with respect to the extension unit to regulate a sheet trailing end position in the sheet feeding direction, and a sheet size indicator having a strip-shape provided on the container body along with a moving direction of the extension unit as a reference of a position of the length regulator, having at least one sheet size mark to indicate a size of the sheet, and being variable in length in a longitudinal direction with respect to the container body along with movement of the extension unit.