Recording apparatus

Abstract

In a conventional recording device capable of removing a blocked medium when an opening / closing part is opened, there is a room for improvement from the perspective of usability. The recording apparatus includes a door portion that opens and closes a side surface of the apparatus main body, opens a portion of the conveyance path when opened, and forms a portion of the conveyance path when closed. The door portion has: a first path forming portion that forms a part of the conveyance path; a first roller pair that nips and conveys the medium; and a second roller pair that is located below the first roller pair and nips and conveys the medium, the first roller pair and the second roller pair maintain a nip state when the door portion is opened, and at least a part of a path portion between the first roller pair and the second roller pair in the conveyance path is opened when the door portion is opened. A path length between the first roller pair and the second roller pair is shorter than a conveying direction length of a recording minimum size medium.

Description

Technical Field

[0001] The present invention relates to a recording device for recording on a medium. Background Art

[0002] In a recording device represented by an inkjet printer, an opening and closing portion for opening a medium conveying path may be provided as shown in Patent Document 1. When the opening and closing portion is opened, the medium conveying path is opened, and the clogged medium can be removed.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2023-091921

[0004] In the conventional structure as described above, the clogged medium can be removed when the opening and closing portion is opened, but this is not the only thing, and there is still room for improvement from the viewpoint of usability. Summary of the invention

[0005] The recording device of the present invention for solving the above-mentioned technical problems is characterized in that it comprises: a device body, comprising a conveying path for conveying a medium and a recording unit for recording the medium in the conveying path; and a door unit for opening and closing the side of the device body, wherein the door unit opens a part of the conveying path by opening, and forms a part of the conveying path by closing, and the door unit comprises: a first path forming unit for forming a part of the conveying path; a first roller pair for clamping and conveying the medium; and a second roller pair for clamping and conveying the medium, located below or above the first roller pair relative to the first roller pair, and maintaining a clamping state when the door unit is opened and closed, and when the door unit is opened, at least a part of the path portion between the first roller pair and the second roller pair in the conveying path is opened, and the path length between the first roller pair and the second roller pair is shorter than the conveying direction length of the medium of the minimum size that can be recorded. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a diagram showing the media transport path of the printer.

[0007] Figure 2 This is a perspective view of the printer with its door closed.

[0008] Figure 3 This is a perspective view of the printer with its door open.

[0009] Figure 4 It is a perspective view of the support unit in a closed state.

[0010] Figure 5 It is a perspective view of the support unit in an opened state.

[0011] Figure 6It is a perspective view of the operation part which unlocks the support unit.

[0012] Figure 7 It is a perspective view of the first portion provided in the support unit.

[0013] Figure 8 It is a three-dimensional view of the contact part and the pressing part provided on the door part.

[0014] Fig. 9 It is a cross-sectional view with unit.

[0015] Fig.10 It is a diagram showing each path forming portion that forms a guide path, a turn path, and a reversal path.

[0016] Fig.11 It is a diagram showing each path forming portion that forms a guide path, a turn path, and a reversal path.

[0017] Fig.12 It is a cross-sectional view of the first component, the second component and the baffle.

[0018] Fig.13 It is a three-dimensional diagram of the first component, the second component and the baffle.

[0019] Fig.14 yes Fig.13 Enlarged view of part A.

[0020] Fig.15 yes Fig.13 Enlarged view of part B.

[0021] Fig.16 yes Fig.13 Enlarged view of part C.

[0022] Fig.17 It is a partially enlarged stereoscopic view of the second component.

[0023] Fig.18 It is a perspective view of the portion where the first component and the second component are engaged.

[0024] Description of Reference Numerals

[0025] 1… inkjet printer; 2… device body; 3… first media box; 6… operation panel; 7… scanner unit; 8… discharge tray; 10A, 10B, 10C, 10D… ink storage unit; 11A, 11B, 11C, 11D… mounting unit; 12… waste liquid storage unit; 19… supply roller; 20… separation roller; 21… pickup roller; 25… feed roller pair; 31, 32, 33, 34, 35, 36, 37, 38… conveying roller pair; 41… baffle; 42… baffle; 42a… first engaging portion; 42b… second engaging portion; 43… head unit Element; 44…line head; 45…hinge; 46…de-static brush; 46a…base; 49…charge roller; 50…belt unit; 50a…unit body; 51…drive shaft; 52…driven shaft; 53…conveyor belt; 53a…first section; 53b…second section; 54…support roller; 55…base; 55a…support plate; 56…slide; 57…support member; 58…compression spring; 60…cleaning unit; 61…cleaning net; 62…drive shaft; 63…pressing shaft; 64…driven shaft; 65…tensioner; 67…rotating frame; 68…rotating shaft; 70…paper dust removal wiper; 71…contact sheet; 72…paper dust recovery container; 75…screw; 76…operating portion; 80…door portion; 81…operating lever; 83…contact portion; 83a…contact surface; 83b…guide portion; 84…pressing portion; 89…screw; 91…first path forming portion; 92…second path forming portion; 92a…recessed portion; 92b…guide surface; 93…third path forming portion; 94…fourth path forming portion; 95…first component; 95a…path forming rib; 95b…insertion portion; 95c…adhesion surface; 95d…clamping portion; 96…the second component; 96a…the supporting shaft portion; 96b…the plate-like portion; 96c…the guide rib; 96d…the clamping portion; 97…the fifth path forming portion; 98…the sixth path forming portion; 99…the seventh path forming portion; 100…the eighth path forming portion; 102…the ninth path forming portion; 103…the tenth path forming portion; 110…the first portion; 110a…the supported surface; 110b…the corner portion; 111…the pressed portion; 111a…the pressed surface; T1…the transport path during recording; T2…the guide path; T3…the turning path; T4…the flipping path. DETAILED DESCRIPTION

[0026] Hereinafter, the present invention will be briefly described.

[0027] The recording device involved in the first embodiment is characterized in that it comprises: a device body, a conveying path for conveying a medium and a recording unit for recording the medium in the conveying path; and a door unit for opening and closing the side of the device body, the door unit opens a part of the conveying path by opening, and forms a part of the conveying path by closing, the door unit having: a first path forming unit forming a part of the conveying path; a first roller pair for clamping and conveying the medium; and a second roller pair located below or above the first roller pair and clamping and conveying the medium, the first roller pair and the second roller pair maintaining a clamping state when the door unit is opened and closed, and when the door unit is opened, at least a part of the path portion between the first roller pair and the second roller pair in the conveying path is opened, and the path length between the first roller pair and the second roller pair is shorter than the conveying direction length of the minimum size of the medium that can be recorded.

[0028] According to this method, the first roller pair and the second roller pair maintain a clamped state when the door portion is opened and closed, and the path length between the first roller pair and the second roller pair is shorter than the conveying direction length of the medium of the minimum size that can be recorded. Therefore, since the medium is clamped by at least one of the first roller pair and the second roller pair when the door portion is opened, accidental falling of the medium can be prevented.

[0029] Here, when the door portion is opened, if the path portion between the first roller pair and the second roller pair in the conveying path is kept closed over the entire area, visibility of the blocked medium is reduced, and it is difficult to remove the blocked medium. However, according to this embodiment, when the door portion is opened, since at least a portion of the path portion between the first roller pair and the second roller pair in the conveying path is opened, visibility of the blocked medium is improved, and the blocked medium can be easily removed. Thus, the usability of the recording device can be improved.

[0030] It should be noted that when the term "at least a part" is used in this specification, it means either a part or all.

[0031] The second method is a method subordinate to the first method, and is characterized in that the device body has a supporting portion, the supporting portion is arranged at a position opposite to the recording portion, and can support the medium recorded by the recording portion, the supporting portion has a second path forming portion that forms a part of the conveying path at a position opposite to the first path forming portion, and by opening the door portion, the first path forming portion and the second path forming portion are opened.

[0032] According to this aspect, since the first path forming portion and the second path forming portion are opened by opening the door, the medium stuck between the first path forming portion and the second path forming portion can be removed, thereby improving the usability of the recording device.

[0033] The third method is a method subordinate to the second method, and is characterized in that the door portion comprises: a third path forming portion, which forms a portion of the conveying path at a position different from that of the first path forming portion; and a fourth path forming portion, at least a portion of which is opposite to the third path forming portion and forms a portion of the conveying path, and the first roller pair is arranged at a portion of the conveying path formed by the third path forming portion and the fourth path forming portion.

[0034] According to this aspect, in the configuration in which the first roller pair is disposed in a portion of the transport path formed by the third path forming portion and the fourth path forming portion, the effects of the first aspect described above can be obtained.

[0035] The fourth method is a method subordinate to the third method, and is characterized in that a path length of a portion of the conveying path formed by the third path forming portion and the fourth path forming portion is shorter than a path length of a portion of the conveying path formed by the first path forming portion and the second path forming portion that is opened by opening the door portion.

[0036] A portion of the transport path formed by the third path forming portion and the fourth path forming portion is a section that is not opened even when the door portion is opened.

[0037] According to this method, since the path length of the section that is not opened even if the door is opened is shorter than the path length of the section that is opened by opening the door, it is possible to ensure visibility of the blocked medium while suppressing the falling of the medium when the door is opened. As a result, the usability of the recording device can be improved.

[0038] A fifth aspect is an aspect dependent on the third aspect, and is characterized in that a path length of a portion of the transport path formed by the third path forming portion and the fourth path forming portion is shorter than a length in the transport direction of a medium of a minimum size that can be recorded.

[0039] According to this method, since the path length of the section that cannot be opened even if the door is opened is shorter than the length in the conveying direction of the medium of the minimum size that can be recorded, the medium that is blocked between the third path forming portion and the fourth path forming portion can be visually confirmed and removed regardless of the length in the conveying direction of the medium. As a result, the usability of the recording device can be improved.

[0040] It should be noted that this embodiment is not limited to the third embodiment described above, but may also be subordinate to the fourth embodiment described above.

[0041] The sixth mode is a mode subordinate to the third mode, and is characterized in that the conveying path comprises: a turning path for turning and conveying the medium passing between the recording portion and the supporting portion; a guide path for guiding the medium passing between the recording portion and the supporting portion to the turning path; and a reversing path connected to the turning path for reversing the medium, the fourth path forming portion forming at least a portion of the guide path and at least a portion of the reversing path, and the first path forming portion and the second path forming portion forming at least a portion of the reversing path downstream of the third path forming portion in the conveying direction.

[0042] According to this embodiment, since the fourth path forming portion forms at least a portion of the guide path and at least a portion of the reversal path, the device can be miniaturized by common components. As a result, the recording device becomes easier to operate, and the usability of the recording device can be improved.

[0043] It should be noted that this embodiment is not limited to the third embodiment described above, and may also be subordinate to the fourth or fifth embodiment described above.

[0044] A seventh aspect is an aspect dependent on the sixth aspect, characterized in that the fourth path forming portion includes: a first member; and a second member connected to the first member, wherein a static removing brush for removing static electricity from a medium is provided in a state of being sandwiched between the first member and the second member.

[0045] According to this aspect, since the static-eliminating brush for eliminating static electricity from the medium is provided in a state of being sandwiched between the first member and the second member, the static-eliminating brush can be easily assembled and provided.

[0046] The eighth mode is a mode subordinate to the sixth mode, and is characterized in that it also includes a switching portion, which can switch between a state of guiding the medium from the guide path to the deflection path and a state of guiding the medium from the deflection path to the flipping path, and the fourth path forming portion has a plurality of supporting shafts along a medium width direction intersecting with a medium conveying direction, which support the switching portion so as to be rotatable, and the switching portion includes: a first engaging portion, which, by engaging with the supporting shaft, limits the movement of the switching portion in a first direction in which the medium abuts against the switching portion; and a second engaging portion, which, by engaging with the supporting shaft, limits the movement of the switching portion in a second direction opposite to the first direction, and the switching portion can be rotatably engaged with the supporting shaft by clamping the supporting shaft with the first engaging portion and the second engaging portion, and a plurality of the first engaging portions and the second engaging portions are provided along the medium width direction, and the number of the second engaging portions is less than the number of the first engaging portions.

[0047] When the number of the second engaging parts is the same as the number of the first engaging parts, the operability of engaging the switching part with the support shaft part may be reduced, and the friction resistance when the switching part and the support shaft part are engaged may increase, resulting in failure to ensure smooth swing of the switching part.

[0048] However, according to this embodiment, since the number of the second engaging parts is smaller than the number of the first engaging parts, it is possible to suppress a decrease in operability when engaging the switching part with the support shaft part, and to suppress an increase in friction resistance when the switching part with the support shaft part is engaged.

[0049] In addition, the switching portion may be deformed in the first direction due to the contact between the medium and the switching portion. However, since the first engaging portions are provided more than the second engaging portions, the deformation can be effectively suppressed.

[0050] It should be noted that this embodiment is not limited to the sixth embodiment, but may also be subordinate to the seventh embodiment.

[0051] The ninth mode is a mode subordinate to the sixth mode, and is characterized in that it comprises a switching portion, wherein the switching portion is capable of switching between a state in which the medium is guided from the guide path to the deflection path and a state in which the medium is guided from the deflection path to the reversal path, and the fourth path forming portion comprises a plurality of supporting shaft portions along a medium width direction intersecting with a medium conveying direction, which support the switching portion so as to be rotatable, and the switching portion comprises: a first engaging portion, which, by engaging with the supporting shaft portion, limits the movement of the switching portion in a first direction in which the medium abuts against the switching portion; and a second engaging portion, which, by engaging with the supporting shaft portion, limits the movement of the switching portion in a second direction opposite to the first direction, and the switching portion is rotatably engaged with the supporting shaft portion by clamping the supporting shaft portion with the first engaging portion and the second engaging portion, and a plurality of the first engaging portion and the second engaging portion are arranged along the medium width direction, the first engaging portion is arranged at the center and both ends of the switching portion in the medium width direction, and the second engaging portion is arranged at both ends of the switching portion in the medium width direction.

[0052] When the number of the second engaging parts is the same as the number of the first engaging parts, the operability of engaging the switching part with the support shaft part may be reduced, and the friction resistance when the switching part and the support shaft part are engaged may increase, resulting in failure to ensure smooth swing of the switching part.

[0053] However, according to this embodiment, since the number of the second engaging parts is smaller than the number of the first engaging parts, it is possible to suppress a decrease in operability when engaging the switching part with the support shaft part, and to suppress an increase in friction resistance when the switching part with the support shaft part is engaged.

[0054] In addition, the switching portion may be deformed in the first direction due to the contact of the medium with the switching portion. However, since the first engaging portions are provided at the center and both ends of the switching portion in the medium width direction, the deformation can be suppressed.

[0055] It should be noted that this embodiment is not limited to the sixth embodiment, but may also be subordinate to the seventh embodiment.

[0056] The tenth mode is a mode belonging to any one of the second to ninth modes, and is characterized in that the supporting portion can switch between a first state in which it can support a medium recorded by the recording portion and a second state in which it is retreated from the recording portion compared to the first state by rotating, and further comprises an operating portion for releasing the state in which the supporting portion is maintained in the first state, and the second path forming portion comprises a guide portion for guiding a user's finger to the operating portion.

[0057] According to this aspect, by switching the support portion from the first state to the second state, when a medium jam occurs at a position facing the recording portion, the medium can be easily removed.

[0058] In addition, since the second path forming portion includes a guide portion for guiding the user's finger to the operating portion, usability is improved. In addition, since the guide portion does not need to be provided in a dedicated component, an increase in the cost of the device can be suppressed.

[0059] An eleventh aspect is an aspect dependent upon the tenth aspect, and is characterized in that the support portion includes a conveyor belt for conveying the medium, and the conveyor belt conveys the medium in a direction intersecting a horizontal direction and a vertical direction.

[0060] According to this aspect, since the conveyor belt conveys the medium in the direction intersecting the horizontal direction and the vertical direction, the recording device can be reduced in size in the horizontal direction and the vertical direction.

[0061] In addition, since the support portion is rotatable, accessibility to the conveyor belt is improved, thereby improving usability.

[0062] A twelfth aspect is an aspect dependent on any one of the second to ninth aspects, characterized in that the support portion has a conveyor belt for conveying a medium.

[0063] According to this aspect, in the configuration in which the support portion has the conveyor belt for conveying the medium, the effects of any one of the first to ninth aspects described above can be obtained.

[0064] The thirteenth mode is a mode subordinate to the twelfth mode, and is characterized in that the supporting portion has a cleaning portion for cleaning the conveyor belt, and when viewed from a direction intersecting the outer surface of the door portion, the conveyor belt and the cleaning portion enter the area of ​​the second path forming portion.

[0065] According to this embodiment, since the conveyor belt and the cleaning unit enter the area of ​​the second path forming unit when viewed from a direction intersecting the outer surface of the door unit, it is possible to prevent a user from accidentally approaching the conveyor belt and the cleaning unit and getting their fingers dirty. In addition, there is no need to provide a dedicated component for covering the conveyor belt and the cleaning unit, which can prevent an increase in the cost of the device.

[0066] The fourteenth mode is a mode subordinate to the thirteenth mode, characterized in that the cleaning section has a paper powder recovery container for recovering paper powder from the conveyor belt, and the second path forming section covers the paper powder recovery container when viewed from a direction intersecting the outer surface of the door section.

[0067] According to this method, since the second path forming portion covers the paper dust recovery container when viewed from a direction intersecting the outer surface of the door portion, it is possible to prevent the user from accidentally approaching the paper dust recovery container and causing paper dust to fly when the door portion is opened. In addition, there is no need to provide a dedicated component to cover the paper dust recovery container, which can prevent the cost of the device from increasing.

[0068] The fifteenth mode is a mode belonging to any one of the second to ninth modes, and is characterized in that the supporting portion can switch between a first state in which it can support a medium recorded by the recording portion and a second state in which it is retreated from the recording portion compared to the first state by rotating, and the door portion has a contact portion, which contacts the supporting portion when the door portion is closed from a state in which the door portion is opened and the supporting portion is in the second state, thereby switching the supporting portion to the first state.

[0069] According to this aspect, even when the door portion is closed while the support portion is maintained in the second state, the door portion switches the support portion from the second state to the first state, thereby improving usability.

[0070] The sixteenth mode is a mode belonging to any one of the second to ninth modes, and is characterized in that the supporting portion can switch between a first state in which it can support a medium recorded by the recording portion, and a second state in which it is retreated from the recording portion compared to the first state by rotating, and the door portion has a pressing portion for pressing the supporting portion toward the first state.

[0071] According to this aspect, since the door has the pressing portion that presses the support portion toward the first state, the first state of the support portion can be appropriately maintained. As a result, the interval between the support portion and the recording portion is appropriately maintained, and a decrease in recording accuracy can be suppressed.

[0072] The seventeenth mode is a mode subordinate to the sixteenth mode, and is characterized in that the door portion has a contact portion, and the contact portion abuts against the support portion when the door portion is closed from a state in which the door portion is open and the support portion is in the second state, thereby switching the support portion to the first state, and along with the closing action of the door portion, the state in which the contact portion abuts against the support portion is changed to a state in which the pressing portion presses the support portion.

[0073] According to this method, as the door portion is closed, the state in which the abutting portion abuts against the supporting portion changes to a state in which the pressing portion presses the supporting portion. Therefore, by closing the door portion, the supporting portion can be switched to the second state and the pressing portion can press the supporting portion.

[0074] Furthermore, the contact portion and the pressing portion can be positioned close to each other, and the device can be miniaturized.

[0075] An eighteenth aspect is an aspect dependent on the seventeenth aspect, and is characterized in that the contact portion holds the pressing portion.

[0076] According to this aspect, since the contact portion holds the pressing portion, the device can be downsized and cost increase can be suppressed compared to a configuration in which the pressing portion is held by a dedicated component.

[0077] The nineteenth mode is a mode subordinate to the seventeenth mode, and is characterized in that the supporting portion has a first portion which is a portion engaged with the abutting portion and the pressing portion, and the door portion has a guide portion, and when the door portion is opened and the first portion is transferred from a state in contact with the pressing portion to a state in contact with the abutting portion, the guide portion guides the first portion from the pressing portion to the abutting portion.

[0078] In the configuration in which the state in which the contact portion contacts the first portion changes to the state in which the pressing portion presses the first portion as the door portion closes, the door portion may not be completely closed but may open again. In this case, the first portion may change from being in contact with the pressing portion to being in contact with the contact portion, but at this time, the first portion may get caught on the contact portion.

[0079] According to this aspect, since there is a guide portion that guides the first portion from the pressing portion to the contact portion when the door portion is opened and the first portion is transferred from a state in contact with the pressing portion to a state in contact with the contact portion, the above-mentioned catching can be suppressed.

[0080] It should be noted that this embodiment is not limited to the seventeenth embodiment, but may also be subordinate to the eighteenth embodiment.

[0081] A twentieth aspect is an aspect dependent on the seventeenth aspect, and is characterized in that the support portion has a conveyor belt for conveying the medium, and the conveyor belt conveys the medium in a direction intersecting a horizontal direction and a vertical direction.

[0082] According to this aspect, since the conveyor belt conveys the medium in the direction intersecting the horizontal direction and the vertical direction, the recording device can be reduced in size in the horizontal direction and the vertical direction.

[0083] In addition, since the support portion is rotatable, accessibility to the conveyor belt is improved, thereby improving usability.

[0084] In addition, in the configuration in which the conveyor belt conveys the medium in a direction intersecting the horizontal direction and the vertical direction, the support portion is easily rotated toward the second state due to its own weight, but the first state of the support portion can be appropriately maintained by the pressing portion. As a result, the interval between the support portion and the recording portion is appropriately maintained, and a decrease in recording accuracy can be suppressed.

[0085] It should be noted that this embodiment is not limited to the seventeenth embodiment, but may also be subordinate to the eighteenth or nineteenth embodiment.

[0086] Hereinafter, the present invention will be described in detail.

[0087] Hereinafter, an inkjet printer 1 that performs recording by ejecting ink as an example of liquid onto a medium represented by recording paper will be described as an example of a recording device. Hereinafter, the inkjet printer 1 will be referred to as a printer 1. It should be noted that from the perspective of conveying a medium, the printer 1 can also be understood as a medium conveying device. In this case, the printer 1 is composed of a medium conveying device and a line head 44 as an example of a recording unit described later.

[0088] It should be noted that the XYZ coordinate system shown in each figure is an orthogonal coordinate system, and the Y-axis direction is the direction intersecting the conveying direction of the medium, that is, the width direction of the medium, and is the depth direction of the device. The +Y direction in the Y-axis direction is the direction from the front surface of the device to the back surface of the device, and the -Y direction is the direction from the back surface of the device to the front surface of the device.

[0089] The X-axis direction is the width direction of the device. When viewed from the operator of the printer 1, the +X direction is the left side and the -X direction is the right side. The Z-axis direction is the vertical direction and is the normal direction relative to the mounting surface G of the printer 1, that is, the height direction of the device. The +Z direction of the Z-axis direction is the upward direction and the -Z direction is the downward direction.

[0090] In the following, the direction in which the medium is sent is sometimes referred to as "downstream", and the opposite direction is sometimes referred to as "upstream". Figure 1 In the figure, the dotted line indicates the medium transport path. In the printer 1, the medium passes through Figure 1 The medium transport path shown by the dotted line is transported.

[0091] The F-axis direction is the medium conveying direction between the line head 44 and the conveying belt 53 described later, that is, in the recording area, and the +F direction is the downstream of the conveying direction, and the opposite -F direction is the upstream of the conveying direction. The V-axis direction is the direction orthogonal to the F-axis direction.

[0092] like Figure 2As shown, the printer 1 is a multifunction peripheral including a scanner unit 7 as an example of an image reading device on an upper portion of a device body 2. However, the scanner unit 7 may be omitted.

[0093] An operation panel 6 for performing various operation settings is provided on the upper portion of the apparatus body 2. In the printer 1, the side on which the operation panel 6 is provided, that is, the side in the -Y direction is defined as the apparatus front surface.

[0094] The printer 1 is configured so that an expansion unit (not shown) can be connected to the lower portion of the apparatus body 2 and the medium can be fed from the expansion unit. However, the expansion unit may not be connected.

[0095] The printer 1 includes a transport path for transporting the medium fed from the add-on unit.

[0096] The apparatus body 2 is provided with a first medium box 3 for storing medium at the lower part. Reference symbol P represents the medium stored in the first medium box 3. The first medium box 3 is provided with a pickup roller 21 for sending the stored medium in the -X direction. The medium sent by the pickup roller 21 is sent to the conveying roller pair 31 by the feed roller pair 25.

[0097] It should be noted that, in this specification, unless otherwise specified, a roller pair refers to a roller pair that sandwiches and conveys a medium using two rollers facing each other.

[0098] In the following, unless otherwise specified, a “roller pair” is constituted by a driving roller that applies a feeding force to a medium by being driven by a driving source (not shown) and a driven roller that rotates in contact with the driving roller or the medium.

[0099] The medium receiving the feeding force from the conveying roller pair 31 is conveyed to a position between a line head 44 as an example of a recording head and the conveying belt 53, that is, facing the line head 44. It should be noted that the medium conveying path from the conveying roller pair 31 to the conveying roller pair 32 is hereinafter referred to as the recording conveying path T1.

[0100] The head unit 43 is constituted by a line head 44 as an example of a recording unit. The line head 44 performs recording by ejecting ink onto the surface of the medium. The line head 44 is an ink ejection head configured so that the nozzles ejecting ink cover the entire area in the width direction of the medium, and is configured as an ink ejection head capable of recording in the entire width area of ​​the medium without moving in the width direction of the medium. However, the ink ejection head is not limited to this, and may be a type mounted on a carriage and ejecting ink while moving in the width direction of the medium.

[0101] The head unit 43 is provided to be able to advance and retreat relative to the recording conveyance path T1 , and is provided to be able to move between a recording position where it advances toward the recording conveyance path T1 to record on the medium and a retreat position where it retreats from the recording conveyance path T1 .

[0102] Figure 1 This shows a state where the head unit 43 is located at the recording position, and recording is performed on the medium in this state.

[0103] Reference numerals 10A, 10B, 10C, and 10D denote ink containers as liquid containers. Ink ejected from the line head 44 is supplied from each ink container to the line head 44 via a tube (not shown). The ink containers 10A, 10B, 10C, and 10D are provided so as to be attachable and detachable to the mounting portions 11A, 11B, 11C, and 11D, respectively.

[0104] In addition, reference numeral 12 denotes a waste liquid storage portion for storing ink as waste liquid ejected from the line head 44 toward a flushing cap (not shown) for maintenance.

[0105] The conveyor belt 53 is an endless belt hung around the driving shaft 51 and the driven shaft 52, and is rotated by the driving shaft 51 driven by a motor (not shown). The medium is transported at a position opposite to the line head 44 while being adsorbed on the belt surface of the conveyor belt 53. The medium can be adsorbed to the conveyor belt 53 by a known adsorption method such as an air suction method and an electrostatic adsorption method.

[0106] Here, when recording through the position opposite to the line head 44, the conveying path T1 intersects both the horizontal direction and the vertical direction, and conveys the medium upward. That is, the F-axis direction intersects both the horizontal direction and the vertical direction. Therefore, in the line head 44, the ejection surface 44a that ejects the ink is also parallel to the F-axis direction and intersects both the horizontal direction and the vertical direction. In the present embodiment, the angle α formed by the F-axis direction relative to the horizontal direction is 75°. It should be noted that the angle α can also be appropriately changed to other angles within the range of 0°<α≤90°. For example, the angle α can also be set to the range of 45°≤α≤80°. It should be noted that when the device body 2 is miniaturized, it is preferably 60°≤α≤80°.

[0107] The medium whose first surface has been recorded by the line head 44 is further fed upward by the transport roller pair 32 located downstream of the transport belt 53 .

[0108] A flapper 41 is provided downstream of the conveying roller pair 32, and the conveying direction of the medium is switched by the flapper 41. When the medium is directly discharged, the conveying path of the medium is switched to the conveying roller pair 35 facing upward by the flapper 41, and the medium is discharged toward the discharge tray 8 as an example of a medium loading portion by the conveying roller pair 35.

[0109] When recording is performed on the second surface in addition to the first surface of the medium, the medium is guided to the guide path T2 by the flapper 41. In the present embodiment, the guide path T2 is a medium conveyance path from the conveyance roller pair 32 to the flapper 42.

[0110] The baffle plate 42 is pressed by a pressing member (not shown) Figure 1 The baffle 42 is pressed in the counterclockwise direction, and the medium traveling in the guide path T2 pushes the baffle 42 and enters the turning path T3. In the present embodiment, the turning path T3 is set as the medium conveying path on the upper side from the baffle 42. The conveying roller pair 36 and 37 are provided in the turning path T3. The medium entering the turning path T3 is conveyed upward by the conveying roller pair 36 and 37, and then, once the lower end of the medium passes through the baffle 42, the rotation direction of the conveying roller pair 36 and 37 is switched, thereby conveying the medium downward. At this time, the baffle 42 guides the medium in such a way that the medium conveyed in the downward direction is directed toward the reversing path T4.

[0111] The flapper 42 is an example of a switching unit that can switch between a state in which the medium is guided from the guide path T2 to the switchback path T3 and a state in which the medium is guided from the switchback path T3 to the reversing path T4 .

[0112] The switchback path T3 is connected to a reversing path T4 . In the present embodiment, the reversing path T4 is set as a medium conveying path from the position of the flapper 42 to the conveying roller pair 31 via the conveying roller pairs 33 , 34 , and 38 .

[0113] The medium conveyed downward from the position of the baffle 42 receives the feeding force from the conveying roller pairs 33 and 34 and reaches the conveying roller pair 38, where it is bent and turned over and conveyed to the conveying roller pair 31. It should be noted that the conveying roller pair 33 is an example of a first roller pair, and the conveying roller pair 34 is an example of a second roller pair. However, the conveying roller pair 34 may be an example of a first roller pair, and the conveying roller pair 33 may be an example of a second roller pair.

[0114] The medium that has been transported again to the position facing the line head 44 has its second surface opposite to the first surface on which recording has been performed facing the line head 44. Thus, the line head 44 can perform recording on the second surface of the medium.

[0115] It should be noted that the supply roller 19 and the separation roller 20 provided near the conveying roller pair 38 are Figure 1The roller pair for delivering the medium from the supply tray is omitted in the figure.

[0116] Next, refer to Fig. 9 The belt unit 50 and the cleaning unit 60 are described. The conveyor belt 53 constituting the belt unit 50 is a ring-shaped belt having an outer first surface Sa and an inner second surface Sb, and is hung around the driving shaft 51 and the driven shaft 52. The conveyor belt 53 is formed by adding a conductive material to a base material composed of polyurethane, rubber, etc. as needed in order to adjust the resistance value.

[0117] The drive shaft 51 is driven to rotate by a motor (not shown). When the drive shaft 51 is driven to rotate in the direction of arrow a, the conveyor belt 53 moves to the Fig. 9 The conveyor belt 53 rotates clockwise. Hereinafter, the rotation of the conveyor belt 53 is sometimes referred to as "positive rotation". When the drive shaft 51 is driven to rotate in the direction of arrow b, the conveyor belt 53 rotates clockwise. Fig. 9 Hereinafter, the rotation of the conveyor belt 53 is sometimes referred to as "reversal".

[0118] A base frame 55 is provided inside the conveyor belt 53. A support plate 55a is provided on the base frame 55, and a portion of the conveyor belt 53 facing the line head 44 is supported by the support plate 55a.

[0119] The carriage 56 is supported on the base frame 55 in a manner that allows sliding along the F-axis direction. The driven shaft 52 is supported on the carriage 56. A pressing member, such as a compression spring (not shown), that presses the carriage 56 in the +F direction is provided on the base frame 55. As a result, the driven shaft 52 is pressed in the +F direction, thereby applying tension to the conveyor belt 53.

[0120] The conveyor belt 53 is wound around the driving shaft 51 and the driven shaft 52 to form a first section 53a and a second section 53b as flat belt sections. The first section 53a is a section facing the line head 44, and the second section 53b is a section on the opposite side to the first section 53a.

[0121] When the conveyor belt 53 rotates forward, the first section 53a of the conveyor belt 53 moves in the +F direction, and the second section 53b moves in the -F direction. That is, when the conveyor belt 53 rotates forward, in the first section 53a, the -F direction becomes the upstream of the belt moving direction, and the +F direction becomes the downstream of the belt moving direction, and in the second section 53b, the +F direction becomes the upstream of the belt moving direction, and the -F direction becomes the downstream of the belt moving direction.

[0122] When the conveyor belt 53 is reversed, the first section 53a of the conveyor belt 53 moves in the -F direction, and the second section 53b moves in the +F direction. That is, when the conveyor belt 53 is reversed, in the first section 53a, the +F direction becomes the upstream of the belt moving direction, and the -F direction becomes the downstream of the belt moving direction, and in the second section 53b, the -F direction becomes the upstream of the belt moving direction, and the +F direction becomes the downstream of the belt moving direction.

[0123] Next, a charging roller 49 is provided at a position facing the drive shaft 51 with the conveyor belt 53 interposed therebetween.

[0124] The charging roller 49 contacts the first surface Sa as the outer surface of the conveyor belt 53, and rotates in accordance with the rotation of the conveyor belt 53. A DC voltage is applied to the charging roller 49 by a voltage applying unit (not shown), thereby supplying electric charge to the portion of the charging roller 49 in contact with the conveyor belt 53.

[0125] In this embodiment, the charging roller 49 supplies positive charges to the conveyor belt 53, so that the first surface Sa of the conveyor belt 53 is charged to positive polarity, whereby the first surface Sa of the conveyor belt 53 becomes an adsorption surface of the adsorption medium.

[0126] However, the structure of conveying the medium by the conveyor belt 53 is not limited to such an electrostatic adsorption method, and other methods such as an air suction method may be used.

[0127] A support roller 54 in contact with the medium is provided upstream of the line head 44. The support roller 54 presses the medium against a portion of the conveyor belt 53 wound around the drive shaft 51. The support roller 54 is grounded to remove charge from the recording surface of the medium.

[0128] Next, a cleaning unit 60 is provided at a position facing the second section 53b of the conveyor belt 53. The cleaning unit 60 includes a cleaning net 61. The cleaning net 61 is hung around the driving shaft 62, the pressing shaft 63, and the driven shaft 64, and a tension is applied to the cleaning net 61 by a tensioner 65.

[0129] In this embodiment, the cleaning net 61 is a ring-shaped cloth, and can be pressed against the first surface Sa of the conveyor belt 53 by the pressing shaft 63. The driving shaft 62 is driven to rotate by a sheet driving motor (not shown). Fig. 9 The cleaning web 61 is driven to rotate in the clockwise direction. Fig. 9 of clockwise rotation.

[0130] The cleaning unit 60 includes a rotating frame 67. The driving shaft 62, the pressing shaft 63, and the driven shaft 64 are provided on the rotating frame 67 and constitute a unit body as a whole. The rotating frame 67 is provided to be rotatable around a rotating shaft 68 extending in the Y-axis direction, and the pressing shaft 63 moves forward and backward relative to the conveyor belt 53 by rotating.

[0131] The rotating frame 67 is pressed by a pressing member (not shown), such as a tension spring, toward the pressing shaft 63 toward the conveyor belt 53. In addition, by the rotation of a cam (not shown), the rotating frame 67 can take a state in which the rotation toward the conveyor belt 53 is restricted and a state in which the restriction is released. In the state in which the cam restricts the rotation of the rotating frame 67, the pressing shaft 63 is separated from the conveyor belt 53, and the cleaning section 60 is in a non-cleaning state in which the cleaning net 61 is separated from the first surface Sa of the conveyor belt 53. In the state in which the cam releases the restriction, the pressing shaft 63 moves toward the conveyor belt 53 side, and the cleaning section 60 is in a cleaning state in which the cleaning net 61 is in contact with the first surface Sa of the conveyor belt 53.

[0132] In the cleaning state of the cleaning unit 60, the cleaning web 61 is pressed against the conveyor belt 53 by the pressing shaft 63. In this state, the conveyor belt 53 rotates forward, and the cleaning web 61 moves to the conveyor belt 53. Fig. 9 The first surface Sa of the conveyor belt 53 is cleaned by the clockwise rotation of the conveyor belt 53. That is, the cleaning web 61 moves relative to the first surface Sa while being in contact with the first surface Sa of the conveyor belt 53, thereby cleaning the first surface Sa.

[0133] The support member 57 is provided inside the conveyor belt 53. The support member 57 is provided inside the conveyor belt 53 on the base frame 55. The support member 57 is provided at a position where the cleaning net 61 contacts the first surface Sa of the conveyor belt 53 and contacts the second surface Sb.

[0134] The support member 57 sandwiches the conveyor belt 53 and the cleaning web 61 between the support member 57 and the pressing shaft 63 , and assists the cleaning web 61 in cleaning the first surface Sa.

[0135] The support member 57 is provided on the base frame 55 so as to be displaceable in the V-axis direction, and is pressed toward the second surface Sb by the compression spring 58 .

[0136] Next, a paper dust removal wiper 70 is provided in the -F direction relative to the cleaning unit 60. As an example, the paper dust removal wiper 70 is formed of a sheet made of PET (polyethylene terephthalate) and is arranged in the direction opposite to the normal rotation direction of the conveyor belt 53. The paper dust removal wiper 70 is fixedly provided and is always in contact with the conveyor belt 53 to remove paper dust attached to the conveyor belt 53.

[0137] Reference numeral 72 is a paper dust recovery container for recovering the removed paper dust. Reference numeral 71 is a contact piece for moving the paper dust adhering to the paper dust removal wiper 70 toward the conveyor belt 53 instead of toward the upstream side when the conveyor belt 53 is reversed.

[0138] It should be noted that, in the present embodiment, the cleaning unit 60 is configured to clean the conveyor belt 53 using the cleaning net 61 , but may be configured to clean the conveyor belt 53 using a scraper instead of or in addition to this.

[0139] Next, the door portion 80 will be described.

[0140] like Figures 1 to 3 As shown in FIG. 1 , a door portion 80 as an opening and closing body is provided on the side surface in the −X direction, that is, the right side surface, of the device body 2 .

[0141] The door portion 80 is connected by a hinge portion 45 (see Figure 3 ) is connected to the device body 2 in a rotatable manner, and is opened and closed relative to the device body 2 by rotation. In this embodiment, the rotation axis of the door portion 80 is parallel to the Z-axis direction. In addition, in this embodiment, the door portion 80 is connected to the device body 2 in a rotatable manner at the end in the +Y direction, and rotates with the end in the -Y direction as a free end.

[0142] It should be noted that the door 80 is provided with a locking portion (not shown) which is engaged with an engaged portion (not shown) provided on the device body 2, so that the door 80 is locked in a closed state relative to the device body 2. The locking portion can be unlocked by operating the operating lever 81 (see Figure 2 ) to unlock.

[0143] The door portion 80 forms a portion of the guide path T2, a portion of the turning path T3, and a portion of the reversing path T4 between the door portion 80 and the device body 2. In addition, the door portion 80 forms a portion of the reversing path T4 inside. Figure 2 to Figure 3 The door portion 80 is opened as shown in the variation of FIG. 1 , and the interior of the device body 2 is exposed, thereby opening a portion of the guide path T2, a portion of the turn path T3, and a portion of the reversal path T4.

[0144] like Figure 3 As shown, when the door portion 80 is opened, the first path forming portion 91, the fourth path forming portion 94, and the eighth path forming portion 100 are exposed on the door portion 80 side. In addition, when the door portion 80 is opened, the second path forming portion 92, the fifth path forming portion 97, the ninth path forming portion 102, and the tenth path forming portion 103 are exposed on the device body 2 side.

[0145] exist Fig.10 , Fig.11 In the figure, hatching is used to indicate the path forming portion that forms each medium conveying path. Fig.10 The door 80 is closed. Fig.11In order to clearly show the path forming portion attached to the door portion 80 when the door portion 80 is opened, the path forming portion attached to the door portion 80 is shown shifted in the -X direction for convenience.

[0146] like Fig.10 , Fig.11 As shown, the fourth path forming portion 94 forms a part of the guide path T2. In addition, the third path forming portion 93 and the fifth path forming portion 97 form a part of the turning path T3. In addition, each of the first path forming portion 91, the second path forming portion 92, the third path forming portion 93, the fourth path forming portion 94, the sixth path forming portion 98, the seventh path forming portion 99, the eighth path forming portion 100, the ninth path forming portion 102, and the tenth path forming portion 103 forms a part of the reversing path T4. It should be noted that the fourth path forming portion 94 includes a first component 95 and a second component 96.

[0147] Among the above-mentioned path forming portions, the first path forming portion 91 , the third path forming portion 93 , the fourth path forming portion 94 , the sixth path forming portion 98 , the seventh path forming portion 99 , and the eighth path forming portion 100 are provided in the door portion 80 .

[0148] In addition, the second path forming portion 92 , the fifth path forming portion 97 , the ninth path forming portion 102 , and the tenth path forming portion 103 are provided in the device body 2 . In particular, the second path forming portion 92 is provided in the belt unit 50 .

[0149] In the present embodiment, each path forming portion is formed of a resin material.

[0150] The gate portion 80 includes rollers in the -X direction of the conveying roller pairs 36 and 37, the conveying roller pairs 33 and 34, the supply roller 19, the separation roller 20, and the rollers in the +Z direction of the conveying roller pair 38. When the gate portion 80 is opened, the clamping of the conveying roller pairs 36, 37, and 38 is as follows. Fig.11 is released as shown.

[0151] As described above, by opening the door 80 , when a paper jam occurs in the guide path T2 , the switchback path T3 , or the reverse path T4 , the jammed medium can be removed.

[0152] In addition, when the door portion 80 is opened, Figure 4 , Figure 5 As shown in FIG. 1 , a belt unit 50 as an example of a support portion is exposed. The belt unit 50 is formed by assembling various components into a unit body 50a. The unit body 50a can rotate with a drive shaft 51 as a rotation axis. The belt unit 50 can rotate to a first state (a state) in which it can support a medium recorded by the line head 44. Figure 4) and a second state ( Figure 5 By setting the belt unit 50 to the second state, when a paper jam occurs in the conveying path T1 during recording, the jammed medium can be removed.

[0153] The belt unit 50 is provided with a second path forming portion 92. Figure 4 , Figure 5 In the figure, reference numeral 75 is a screw that fixes the second path forming portion 92 to the unit body 50a. By removing the screw 75, the second path forming portion 92 can be removed from the unit body 50a, thereby accessing the cleaning portion 60, for example, the paper powder recovery container 72 can be installed and removed.

[0154] In the second path forming portion 92, as Figure 6 As shown in the enlarged view, a recessed portion 92a is formed in the -Y direction. The bottom of the recessed portion 92a is formed as a concave guide surface 92b. Above the recessed portion 92a, an operating portion 76 for maintaining the first state, that is, releasing the lock of the locked belt unit 50 is provided. The belt unit 50 is provided with a locking mechanism (not shown) for locking the first state. By hooking a finger on the operating portion 76 from below and pulling it in the -X direction, the lock can be released and the belt unit 50 can be switched from the first state to the second state.

[0155] Since the guide surface 92b as a guide portion formed on the second path forming portion 92 guides the user's finger to the operation portion 76, usability is improved. In addition, by providing the guide surface 92b on the second path forming portion 92, it is not necessary to provide the guide surface 92b on a dedicated component, and the cost increase of the device can be suppressed.

[0156] Then, if Figure 4 and Figure 5 As shown, in the belt unit 50, a first portion 110 is provided in the +Y direction with respect to the second path forming portion 92. The first portion 110 has a supported surface 110a.

[0157] The door 80 is provided with a contact portion 83. In addition, the contact portion 83 is provided with a pressing portion 84. When the door 80 is closed, the pressing portion 84 presses the first portion 110 (supported surface 110a) of the belt unit 50. The pressing direction is the direction in which the belt unit 50 is in the first state, that is, the closing direction.

[0158] The pressing portion 84 is provided so as to be displaceable in the direction of advancing and retreating relative to the belt unit 50, and is pressed toward the belt unit 50 by a pressing member (not shown), such as a spring. With the pressing portion 84, the first state of the belt unit 50 is appropriately maintained when the door 80 is closed.

[0159] It should be noted that in the Y-axis direction, the pressing portion 84 presses the belt unit 50 in the first state, i.e., the closed direction, at the end portion in the +Y direction of the belt unit 50. It should be noted that a similar pressing portion 84 is also provided at the end portion in the -Y direction of the belt unit 50, but is not shown.

[0160] Furthermore, in the Y-axis direction, at the end portion in the −Y direction and the end portion in the +Y direction of the belt unit 50 , the above-described locking mechanism holds the belt unit 50 in the first state.

[0161] Here, the door 80 may be closed while the belt unit 50 is in the second state, that is, the open state. The contact portion 83 provided in the door 80 functions in this case.

[0162] The contact portion 83 has a contact surface 83a, and when the door 80 is closed while the belt unit 50 is in the second state, i.e., the opened state, the contact surface 83a contacts the corner 110b of the first portion 110. When the door 80 is further closed from this state, the contact surface 83a presses the first portion 110, so that the belt unit 50 rotates in the closing direction.

[0163] Figure 8 The solid arrows shown indicate the path along which the first portion 110 moves on the contact surface 83a when the door portion 80 is closed. Figure 7 The arrows shown indicate changes in the position where the first portion 110 contacts the contact surface 83 a and the pressing portion 84 when the door 80 is closed.

[0164] like Figure 8 As shown, when the door 80 is closed, the first portion 110 moves from the bottom to the top on the contact surface 83a and moves from the contact surface 83a to the pressing portion 84 to be pressed by the pressing portion 84. That is, when the door 80 is closed, the belt unit 50 is also closed and switched to the first state.

[0165] It should be noted that, when the door 80 is opened again before being completely closed, the first portion 110 is located along the contact surface 83a. Figure 8 In addition, when the door 80 is opened again before being completely closed, a contact occurs at the position where the first portion 110 contacts the contact surface 83a and the pressing portion 84. Figure 7 The opposite of the changes shown.

[0166] Thus, the door portion 80 has the abutment portion 83, which abuts against the belt unit 50 when the door portion 80 is closed from the state in which the door portion 80 is open and the belt unit 50 is in the second state, thereby switching the belt unit 50 to the first state. Thus, even if the door portion 80 is closed while the belt unit 50 is in the second state, the door portion 80 switches the belt unit 50 from the second state to the first state, thereby improving usability.

[0167] The door 80 has a pressing portion 84 that presses the tape unit 50 toward the second state. This can appropriately maintain the first state of the tape unit 50. As a result, the interval between the tape unit 50 and the line head 44 is appropriately maintained, and a decrease in recording accuracy can be suppressed.

[0168] And, with the closing action of the door portion 80, the state where the contact portion 83 contacts the belt unit 50 changes to the state where the pressing portion 84 presses the belt unit 50. In this way, by closing the door portion 80, the belt unit 50 can be switched to the second state and the pressing portion 84 can press the belt unit 50.

[0169] Furthermore, the contact portion 83 and the pressing portion 84 can be positioned close to each other, and the device can be miniaturized.

[0170] In addition, in the present embodiment, the contact portion 83 holds the pressing portion 84. This can reduce the size of the device and suppress cost increases, compared with a configuration in which the pressing portion 84 is held by a dedicated member.

[0171] Here, when the door 80 is about to be closed, it may not be completely closed but may open again. In this case, the first portion 110 may be transferred from the state of being in contact with the pressing portion 84 to the state of being in contact with the contact portion 83, but at this time, the first portion 110 may be caught on the contact portion 83. Specifically, Figure 8 As shown by the dotted arrow, the first portion 110 is about to transfer from the state in contact with the pressing portion 84 to the state in contact with the abutting portion 83 .

[0172] However, the contact portion 83 of the present embodiment has a guide portion 83b. When the door 80 is opened and the first portion 110 is transferred from the state of contact with the pressing portion 84 to the state of contact with the contact portion 83, the guide portion 83b guides the first portion 110 from the pressing portion 84 to the contact portion 83. Thus, the above-mentioned occurrence of the catching can be suppressed.

[0173] It should be noted that, as described above, the belt unit 50 includes the conveyor belt 53, and the conveyor belt 53 conveys the medium in the +F direction, that is, in the direction intersecting the horizontal direction and the vertical direction. Thus, in the configuration in which the conveyor belt 53 conveys the medium in the direction intersecting the horizontal direction and the vertical direction, the belt unit 50 is likely to rotate toward the second state due to its own weight, but the first state of the belt unit 50 can be appropriately maintained by the pressing portion 84. As a result, the interval between the belt unit 50 and the line head 44 is appropriately maintained, and a decrease in recording accuracy can be suppressed.

[0174] Next, for reference Fig.10 , Fig.11 Each of the path forming units described above will be further described.

[0175] As described above, the gate portion 80 includes the first path forming portion 91 forming a portion of the reversing path T4, the conveying roller pair 33, and the conveying roller pair 34 located below the conveying roller pair 33. Since the conveying roller pair 33 and the conveying roller pair 34 are both provided with two rollers facing each other in the gate portion 80, Fig.11 As shown, the clamping state is maintained when the door portion 80 is opened and closed.

[0176] In addition, if Fig.11 As shown, when the door 80 is opened, at least a portion of the path portion between the conveying roller pair 33 and the conveying roller pair 34 in the reversing path T4 is opened. In the present embodiment, the path length L1 is opened.

[0177] Furthermore, the path length L0 between the transport roller pair 33 and the transport roller pair 34 is shorter than the transport direction length of the medium of the minimum size that can be recorded.

[0178] As described above, the conveying roller pair 33 and the conveying roller pair 34 maintain a clamped state when the door portion 80 is opened and closed, and the path length L0 between the conveying roller pair 33 and the conveying roller pair 34 is shorter than the conveying direction length of the medium of the minimum size that can be recorded. Therefore, since the medium is clamped by at least one of the conveying roller pair 33 and the conveying roller pair 34, it is possible to prevent the medium from accidentally falling when the door portion 80 is opened.

[0179] Here, when the door portion 80 is opened, when the path portion between the conveying roller pair 33 and the conveying roller pair 34 in the reversing path T4 is kept closed in the entire area, the visibility of the blocked medium is reduced, and it is difficult to remove the blocked medium. However, according to the present embodiment, when the door portion 80 is opened, since at least a part of the path portion between the conveying roller pair 33 and the conveying roller pair 34 in the reversing path T4 is opened, the visibility of the blocked medium is improved, and the blocked medium can be easily removed. And, as a result, the usability of the printer 1 can be improved.

[0180] In addition, the belt unit 50 includes a second path forming portion 92 that forms a part of the reversing path T4 at a position opposite to the first path forming portion 91. And, by opening the door portion 80, the space between the first path forming portion 91 and the second path forming portion 92 is opened. Thus, the medium that is blocked between the first path forming portion 91 and the second path forming portion 92 can be removed. And, as a result, the usability of the printer 1 can be improved.

[0181] In addition, the gate portion 80 includes a third path forming portion 93 that forms a portion of the reversing path T4 at a position different from the first path forming portion 91, and a fourth path forming portion 94 that at least a portion of which is opposed to the third path forming portion 93 and forms a portion of the conveying path. The conveying roller pair 33 is disposed at a portion of the reversing path T4 formed by the third path forming portion 93 and the fourth path forming portion 94.

[0182] That is, one roller constituting the transport roller pair 33 is provided in the third path forming portion 93 , and the other roller is provided in the fourth path forming portion 94 .

[0183] In addition, the gate portion 80 includes a third path forming portion 93 that forms a portion of the reversing path T4 at a position different from the first path forming portion 91, and a sixth path forming portion 98 that at least a portion of which is opposed to the third path forming portion 93 and forms a portion of the conveying path. The conveying roller pair 34 is disposed in a portion of the reversing path T4 formed by the third path forming portion 93 and the sixth path forming portion 98. That is, one roller constituting the conveying roller pair 34 is provided in the third path forming portion 93, and the other roller is provided in the sixth path forming portion 98.

[0184] In addition, the path length L2 of a portion of the reversing path T4 formed by the third path forming portion 93 and the fourth path forming portion 94 is shorter than the path length L1 of a portion of the reversing path T4 formed by the first path forming portion 91 and the second path forming portion 92 that is opened by opening the door portion 80. Thus, the following effects are obtained.

[0185] A portion of the reversing path T4 formed by the third path forming portion 93 and the fourth path forming portion 94 is a section that is not opened even when the door portion 80 is opened.

[0186] In this embodiment, since the path length L2 of the section that is not opened even if the door portion 80 is opened is shorter than the path length L1 of the section that is opened by opening the door portion 80, it is possible to ensure visibility of the blocked medium while suppressing the falling of the medium when the door portion 80 is opened. As a result, the usability of the device can be improved.

[0187] In addition, in the present embodiment, the path length L2 of a portion of the reversing path T4 formed by the third path forming portion 93 and the fourth path forming portion 94 is shorter than the length in the conveying direction of the medium of the minimum size that can be recorded. Thus, regardless of the length in the conveying direction of the medium, the medium that is blocked between the third path forming portion 93 and the fourth path forming portion 94 can be visually confirmed and removed. As a result, the usability of the printer 1 can be improved.

[0188] Note that, in the present embodiment, a portion of the reversing path T4 formed by the sixth path forming portion 98 , the seventh path forming portion 99 , and the eighth path forming portion 100 in the door portion 80 is also a section that is not opened even when the door portion 80 is opened, as described above.

[0189] In this embodiment, the path length L3 of this section is shorter than the path length L1 of the section opened by opening the door 80. Thus, it is possible to ensure visibility of the blocked medium while suppressing the falling of the medium when the door 80 is opened. As a result, the usability of the device can be improved.

[0190] In addition, since the section where the medium is bent and reversed, that is, the section formed by the eighth path forming portion 100, is as shown in FIG. Fig.11 Since the medium is divided as shown, when a jam occurs in the section where the medium is bent and reversed, it is easy to deal with the jam.

[0191] In addition, the path length L3 is also shorter than the length of the minimum recordable medium in the conveying direction. Therefore, regardless of the length of the medium in the conveying direction, the medium blocked in the path length L3 can be visually confirmed and removed. As a result, the usability of the printer 1 can be improved.

[0192] In addition, the medium conveying path of the printer 1 includes: a turning path T3 for turning and conveying the medium passing between the line head 44 and the belt unit 50; a guide path T2 for guiding the medium passing between the line head 44 and the belt unit 50 to the turning path T3; and a reversing path T4 connected to the turning path T3 for reversing the medium. The fourth path forming portion 94 forms at least a portion of the guide path T2 and at least a portion of the reversing path T4. The first path forming portion 91 and the second path forming portion 92 form at least a portion of the reversing path T4 at a position downstream of the third path forming portion 93 in the conveying direction.

[0193] Since the fourth path forming portion 94 forms at least a portion of the guide path T2 and at least a portion of the reversal path T4, the device can be made smaller by using common components. As a result, the printer 1 can be easily operated, thereby improving the usability of the printer 1.

[0194] Next, the fourth path forming portion 94 will be described in detail.

[0195] like Fig.12 , Fig.13 As shown, the fourth path forming portion 94 includes a first component 95 and a second component 96 connected to the first component 95. The second component 96 is fixed to the first component 95 at both ends in the medium width direction by screws 89. The first component 95 includes path forming ribs 95a at appropriate intervals along the medium width direction. The path forming ribs 95a form the guide path T2.

[0196] like Fig.17 As shown, a plate-shaped portion 96b protruding downward is formed on the second component 96. An insertion portion 95b into which the plate-shaped portion 96b can be inserted downward is formed on the first component 95. And, by inserting the plate-shaped portion 96b into the insertion portion 95b, the second component 96 is restricted from moving relative to the first component 95 in the X-axis direction at the center portion in the medium width direction.

[0197] It should be noted that the plate-shaped portion 96b is formed with a guide rib 96c. Fig.18 As shown, when the plate-shaped portion 96b is inserted into the insertion portion 95b, the guide rib 96c guides the medium so that the leading end of the medium transported in the reversing path T4 does not get caught on the second member 96. In this way, by guiding the medium with the guide rib 96c provided on the plate-shaped portion 96b that restricts the movement of the second member 96, the medium can be transported stably without complicating the structure.

[0198] like Fig.12 , Fig.13 As shown, the fourth path forming portion 94 is provided with a static eliminating brush 46 as an example of a static eliminating portion for eliminating static electricity from the medium in the guide path T2. The static eliminating brush 46 is provided in a state of being sandwiched between the first member 95 and the second member 96.

[0199] exist Fig.12 In the embodiment, the base 46a of the static elimination brush 46 can be fixed to the adhesive surface 95c formed on the first component 95 by a double-sided tape or an adhesive material. When the second component 96 is fixed relative to the first component 95 with the base 46a of the static elimination brush 46 fixed to the adhesive surface 95c, the static elimination brush 46 is clamped by the clamping portion 95d of the first component 95 and the clamping portion 96d of the second component 96.

[0200] In this manner, since the static-eliminating brush 46 is provided in a state of being sandwiched between the first member 95 and the second member 96 , the static-eliminating brush 46 can be provided in an easily assembled manner.

[0201] It should be noted that the base 46a of the anti-static brush 46 may be fixed to the adhesive surface 95c formed on the first component 95 by double-sided tape or adhesive material, etc., and the anti-static brush 46 may be fixed by clamping the clamping portion 95d of the first component 95 and the clamping portion 96d of the second component 96.

[0202] Alternatively, the base 46 a of the static eliminating brush 46 may be fixed to the second member 96 by a double-sided tape or an adhesive material, and then sandwiched between the first member 95 and the second member 96 .

[0203] Next, the mounting structure of the baffle plate 42 with respect to the second member 96 will be described.

[0204] like Figures 13 to 16 As shown in FIG. 1 , a plurality of support shafts 96 a are provided at intervals along the medium width direction on the upper portion of the second member 96 . The support shafts 96 a serve as the rotation axis of the shutter 42 .

[0205] The baffle plate 42 has a first engagement portion 42a and a second engagement portion 42b that can engage with the support shaft portion 96a. The baffle plate 42 is rotatably engaged with the support shaft portion 96a by sandwiching the support shaft portion 96a between the first engagement portion 42a and the second engagement portion 42b.

[0206] A plurality of first engaging portions 42 a and second engaging portions 42 b are provided along the medium width direction.

[0207] like Fig.14 , Fig.16 As shown, both first engaging portions 42a and second engaging portions 42b are provided at both ends in the medium width direction, and the support shaft portion 96a is sandwiched between the first engaging portion 42a and the second engaging portion 42b. The first engaging portion 42a is formed in a concave shape to receive the support shaft portion 96a.

[0208] The first engaging portion 42a restricts the movement of the shutter 42 in a first direction, in this embodiment, the -X direction, where the medium contacts the shutter 42. The second engaging portion 42b restricts the movement of the shutter 42 in a second direction, in this embodiment, the +X direction, which is opposite to the first direction.

[0209] And, if Fig.12 , Fig.15 As shown in FIG. 1 , the second engaging portion 42 b is not provided in the center portion in the medium width direction. That is, the number of the second engaging portions 42 b is less than the number of the first engaging portions 42 a.

[0210] Here, when the number of second engaging portions 42b is the same as the number of first engaging portions 42a, the operability of engaging the baffle 42 with the support shaft portion 96a may be reduced, and the friction resistance when the baffle 42 and the support shaft portion 96a are engaged may increase, resulting in the inability to ensure smooth swinging of the baffle 42.

[0211] However, in this embodiment, since the number of second engaging portions 42b is smaller than the number of first engaging portions 42a, the workability when engaging the baffle plate 42 with the support shaft portion 96a can be suppressed, and the increase in friction resistance when the baffle plate 42 and the support shaft portion 96a are engaged can be suppressed.

[0212] Furthermore, the flapper 42 may be deformed in the −X direction due to the contact between the medium and the flapper 42 . However, since the first engaging portions 42 a are provided at the center and both ends of the flapper 42 in the medium width direction, such deformation can be suppressed.

[0213] It should be noted that in this embodiment, the conveyor belt 53 conveys the medium in the +F direction, that is, in a direction intersecting the horizontal direction and the vertical direction. This allows the printer 1 to be downsized in the horizontal direction and the vertical direction.

[0214] In addition, since the belt unit 50 is rotatable, accessibility to the conveyor belt 53 is improved, so that usability is improved.

[0215] In addition, in this embodiment, the belt unit 50 has a cleaning portion 60 for cleaning the conveyor belt 53. Fig. 9 When viewed from the direction of arrow T1, the conveyor belt 53 and the cleaning unit 60 enter the area of ​​the second path forming unit 92. This can prevent the user from accidentally approaching the conveyor belt 53 and the cleaning unit 60 and getting their fingers dirty. In addition, there is no need to provide a dedicated component to cover the conveyor belt 53 and the cleaning unit 60, which can prevent the cost of the device from increasing.

[0216] In addition, the cleaning unit 60 includes a paper powder recovery container 72 for recovering paper powder from the conveyor belt 53. Fig. 9 When viewed in the direction of arrow T1, the second path forming portion 92 covers the paper dust recovery container 72. Thus, when the door portion 80 is opened, it is possible to prevent the user from accidentally approaching the paper dust recovery container 72 and causing paper dust to fly. In addition, there is no need to provide a dedicated component to cover the paper dust recovery container 72, which can prevent the cost of the device from increasing.

[0217] The present invention is not limited to the above-described embodiments and modifications, and various modifications can be made within the scope of the invention described in the claims, and it is apparent that these modifications are also included in the scope of the present invention.

Claims

1. A recording device, characterized in that: have: An apparatus body including a conveying path for conveying a medium and a recording unit for recording on the medium in the conveying path; and a door portion that opens and closes a side surface of the device body, the door portion opens a portion of the conveying path when opened, and forms a portion of the conveying path when closed, The door portion has: a first path forming portion forming a portion of the conveying path; The first roller pair clamps and conveys the medium; as well as The second roller pair is located below or above the first roller pair, clamping and conveying the medium, The first roller pair and the second roller pair maintain a clamping state when the door portion is opened or closed. When the door is opened, at least a portion of a path portion between the first roller pair and the second roller pair in the conveying path is opened. A path length between the first roller pair and the second roller pair is shorter than a length in a conveying direction of a medium of a minimum size that can be recorded.

2. The recording device according to claim 1, characterized in that The device body includes a support portion, the support portion is provided at a position facing the recording portion and can support the medium recorded by the recording portion. The support portion includes a second path forming portion that forms a portion of the conveying path at a position facing the first path forming portion. By opening the door portion, a space between the first path forming portion and the second path forming portion is opened.

3. The recording device according to claim 2, characterized in that The door portion has: a third path forming portion that forms a portion of the transport path at a position different from that of the first path forming portion; and The fourth path forming portion at least partly faces the third path forming portion and forms a part of the conveying path. The first roller pair is arranged at a portion of the transport path formed by the third path forming portion and the fourth path forming portion.

4. The recording device according to claim 3, characterized in that A path length of a portion of the conveying path formed by the third path forming portion and the fourth path forming portion is shorter than a path length of a portion of the conveying path formed by the first path forming portion and the second path forming portion that is opened by opening the door portion.

5. The recording device according to claim 3, characterized in that A path length of a portion of the transport path formed by the third path forming portion and the fourth path forming portion is shorter than a length in the transport direction of a medium of a minimum size that can be recorded.

6. The recording device according to claim 3, characterized in that The conveying path has: A turning path, used for turning and conveying the medium passing between the recording portion and the supporting portion; a guide path for guiding the medium passing between the recording portion and the supporting portion to the turning path; as well as A reversing path is connected to the diverting path to reverse the medium. The fourth path forming portion forms at least a portion of the guide path and at least a portion of the reversal path. The first path forming portion and the second path forming portion form at least a portion of the reversing path at a position downstream of the third path forming portion in a conveying direction.

7. The recording device according to claim 6, characterized in that The fourth path forming portion comprises: a first component; and a second component connected to the first component, The static-eliminating brush for eliminating static electricity from the medium is provided in a state of being sandwiched between the first member and the second member.

8. The recording device according to claim 6, characterized in that The recording device further includes a switching unit capable of switching between a state in which the medium is guided from the guide path to the switchback path and a state in which the medium is guided from the switchback path to the reversing path. The fourth path forming portion includes a plurality of support shaft portions that rotatably support the switching portion along a medium width direction intersecting a medium conveying direction. The switching unit comprises: a first engaging portion, which, by engaging with the supporting shaft portion, restricts the movement of the switching portion in a first direction in which the medium abuts against the switching portion; and The second engaging portion is engaged with the support shaft portion to restrict the movement of the switching portion in a second direction opposite to the first direction. The switching portion is rotatably engaged with the support shaft portion by sandwiching the support shaft portion with the first engagement portion and the second engagement portion. The first engaging portion and the second engaging portion are provided in plurality along the width direction of the medium. The number of the second engaging portions is smaller than the number of the first engaging portions.

9. The recording device according to claim 6, characterized in that The recording device includes a switching unit capable of switching between a state in which the medium is guided from the guide path to the switchback path and a state in which the medium is guided from the switchback path to the reversing path. The fourth path forming portion includes a plurality of support shaft portions that rotatably support the switching portion along a medium width direction intersecting a medium conveying direction. The switching unit comprises: a first engaging portion, which, by engaging with the supporting shaft portion, restricts the movement of the switching portion in a first direction in which the medium abuts against the switching portion; and The second engaging portion is engaged with the support shaft portion to restrict the movement of the switching portion in a second direction opposite to the first direction. The switching portion is rotatably engaged with the support shaft portion by sandwiching the support shaft portion with the first engagement portion and the second engagement portion. The first engaging portion and the second engaging portion are provided in plurality along the width direction of the medium. The first engaging portion is disposed at the center and both ends of the switching portion in the width direction of the medium. The second engaging portions are provided at both ends of the switching portion in the medium width direction.

10. The recording device according to any one of claims 2 to 9, characterized in that The support portion is switchable by rotation between a first state in which the support portion can support the medium recorded by the recording portion and a second state in which the support portion is retracted from the recording portion compared to the first state. The recording device further includes an operation unit for releasing the state in which the support unit is maintained in the first state. The second path forming portion includes a guide portion that guides a user's finger to the operation portion.

11. The recording device according to claim 10, characterized in that The support part has a conveyor belt for conveying a medium. The conveyor belt conveys the medium in a direction intersecting the horizontal direction and the vertical direction.

12. The recording device according to any one of claims 2 to 9, characterized in that The support has a conveyor belt for conveying a medium.

13. The recording device according to claim 12, characterized in that The support portion includes a cleaning portion for cleaning the conveyor belt. The conveyor belt and the cleaning portion enter into a region of the second path forming portion when viewed from a direction intersecting the outer surface of the door portion.

14. The recording device according to claim 13, characterized in that The cleaning unit includes a paper powder recovery container for recovering paper powder from the conveyor belt. The second path forming portion covers the paper powder recovery container when viewed from a direction intersecting an outer surface of the door portion.

15. The recording device according to any one of claims 2 to 9, characterized in that The support portion is switchable by rotation between a first state in which the support portion can support the medium recorded by the recording portion and a second state in which the support portion is retracted from the recording portion compared to the first state. The door portion includes a contact portion that contacts the support portion when the door portion is closed from a state in which the door portion is open and the support portion is in the second state, thereby switching the support portion to the first state.

16. The recording device according to any one of claims 2 to 9, characterized in that The support portion is switchable by rotation between a first state in which the support portion can support the medium recorded by the recording portion and a second state in which the support portion is retracted from the recording portion compared to the first state. The door portion includes a pressing portion that presses the support portion toward the first state.

17. The recording device according to claim 16, characterized in that The door portion has a contact portion that contacts the support portion when the door portion is closed from a state in which the door portion is open and the support portion is in the second state, thereby switching the support portion to the first state. As the door portion closes, the state in which the contact portion contacts the support portion changes to a state in which the pressing portion presses the support portion.

18. The recording device according to claim 17, characterized in that The abutment portion holds the pressing portion.

19. The recording device according to claim 17, characterized in that The support portion has a first portion as a portion engaging with the contact portion and the pressing portion. The door portion includes a guide portion that guides the first portion from the pressing portion to the contact portion when the door portion is opened and the first portion is transferred from a state in contact with the pressing portion to a state in contact with the contact portion.

20. The recording device according to claim 17, characterized in that The support part has a conveyor belt for conveying a medium. The conveyor belt conveys the medium in a direction intersecting the horizontal direction and the vertical direction.

Images