Image recording device

Abstract

The present invention provides an image recording device, the subject of which is to make the cutter unable to move by a motor according to the degree of paper jam. The image recording device with a cutter cover comprises: a conveying part, which conveys the medium along the conveying path; a recording part, which records the image on the conveyed medium; a cutting part, which is arranged downstream of the conveying direction of the medium relative to the recording part and cuts the conveyed medium, and the cutting part has: a first cutter, which cuts the medium while moving in a scanning direction intersecting the conveying direction; a second cutter, which is opposite to the first cutter; a cutter slide, which carries the first cutter and moves the first cutter in the scanning direction; a convex part, which is arranged at the upper part of the cutter slide and protrudes upward, and a first slit is formed at the upper part of the cutter cover and passes through the interior along the scanning direction, and the convex part protrudes from the inside of the cutter cover to the outside through the first slit.

Description

Technical Field

[0001] The present invention relates to an image recording device. Background Art

[0002] Conventionally, as disclosed in Patent Document 1, there is known an image recording apparatus which, when a sheet such as recording paper is jammed, drives a cutting motor to move a cutter mounted on a cutter carriage out of a sheet passing area.

[0003] However, in the image recording device of Patent Document 1, there is a possibility that the cutter cannot be moved by the motor depending on the degree of paper jam.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2023-94695 Summary of the invention

[0005] An image recording device, which has a cutter cover and is equipped with: a conveying section that conveys a medium along a conveying path; a recording section that records an image on the conveyed medium; a cutting section that is arranged downstream of the recording section in the conveying direction of the medium and cuts the conveyed medium, the cutting section having: a first cutter that cuts the medium while moving in a scanning direction intersecting the conveying direction; a second cutter that is opposite to the first cutter; a cutter slide that carries the first cutter and moves the first cutter in the scanning direction; a convex section that is arranged at the upper part of the cutter slide and protrudes upward, a first slit that penetrates the interior along the scanning direction is formed at the upper part of the cutter cover, and the convex section protrudes from the interior of the cutter cover to the outside via the first slit. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 A perspective view of an image recording device.

[0007] Figure 2 This is a perspective view of the image recording device when the reading unit is removed and the cutter cover is exposed.

[0008] Figure 3 is a cross-sectional view of an image recording device.

[0009] Figure 4 It is a three-dimensional diagram showing the cut portion as the center.

[0010] Figure 5 It is a cross-sectional view showing the cut portion as the center.

[0011] Figure 6It is a cross-sectional view with the knob as the center.

[0012] Figure 7 This is a perspective view of the image recording device when the rear door is opened to expose the conveying path component.

[0013] Figure 8 This is a flow chart of when the medium is cut by the cutting unit. DETAILED DESCRIPTION

[0014] Hereinafter, the structure of the image recording device 1 involved in the embodiment will be described with reference to the accompanying drawings. In addition, the directions in the accompanying drawings will be described using a three-dimensional coordinate system. For the convenience of description, the description will be made in the following manner, that is, the positive direction of the Z axis is referred to as the upper direction, the upper side, or simply as the upper side, and the negative direction thereof is referred to as the lower direction, the lower side, or simply as the lower side; the positive direction of the X axis is referred to as the right direction, the right side, or simply as the right side, and the negative direction thereof is referred to as the left direction, the left side, or simply as the left side; the positive direction of the Y axis is referred to as the front direction, the front side, or simply as the front side, and the negative direction thereof is referred to as the rear direction, the rear side, or simply as the rear side.

[0015] 1. Structure of image recording device

[0016] like Figure 1 As shown, the image recording device 1 includes a device body 12 and a reading section 21. The device body 12 includes a housing 13, an input / output section 14, a storage section 15, a placement section 16, and a cartridge cover 19.

[0017] The storage section 15 capable of storing a medium P described later is detachable from the interior of the housing 13. The ink cartridge 18 can be installed in the interior of the housing 13 when the cartridge cover 19 is opened.

[0018] The storage unit 15 and the ink cartridge 18 are arranged at the front of the image recording device 1 , and the user can attach and detach them from the front of the image recording device 1 .

[0019] A loading section 16 capable of loading a medium P recorded by a recording section 40 described later is provided inside the frame 13. A user can remove the medium P loaded on the loading section 16 from a frame opening 17 disposed at the front. The loading section 16 may be configured to be detachable from the frame opening 17 relative to the inside of the frame 13. The loading section 16 may be configured integrally with the storage section 15.

[0020] The input / output unit 14 disposed at the front is a user interface for the user. The input / output unit 14 is, for example, a touch panel display. The input / output unit 14 is a display unit that displays various information, and includes a display panel as an output unit and a detection panel as an input unit.

[0021] The display panel is, for example, a liquid crystal display panel. The detection panel is configured to overlap the display panel. The detection panel can detect the operation of the user's finger by, for example, an electrostatic capacitance method, a resistive film method, an optical method, or the like.

[0022] The user can visually check and operate the input / output unit 14 from the front of the image recording device 1 .

[0023] The reading unit 21 includes an image sensor (not shown) such as a CIS (Contact Image Sensor) or a CCD (Charge Coupled Device). The image recording device 1 can read an image recorded on the medium P through the reading unit 21 .

[0024] As a result, the image recording device 1 can have functions such as scanning, copying, and faxing by the reading unit 21 in addition to the printer function realized by the recording unit 40. Such an image recording device 1 is also called a so-called multifunction peripheral or an image forming apparatus.

[0025] The image recording device 1 includes a cutter cover 20. Figure 2 Next, the structure of the cutter cover 20 will be described. Figure 2 For ease of explanation, Figure 1 The cutter cover 20 is a diagram in which the reader 21 is removed and can be visually observed from above. The cutter cover 20 is at least for reference to the following description. Figure 3 The cut-off portion 60 described above is a component that is covered.

[0026] The shear cover 20 has a first recess 20a formed near the center thereof, which is a recess in a rectangular shape that is long in the left and right directions. A cover 20f is installed on the shear cover 20 in an openable and closable manner to cover the first recess 20a. When the cover 20f is in a closed state, contact with the thumb nut 78, which is a convex portion described later, can be prevented. In addition, the cover 20f can prevent dust and the like from entering the first recess 20a.

[0027] Furthermore, a second recessed portion 20d is formed in the cutter cover 20 near the rear left side and is recessed in a long and narrow rectangular shape in the front and rear directions.

[0028] In addition, the cover 20f can also be configured to cover the entire cutter cover 20. In this case, when the cover 20f is in a closed state, the upper surface of the cutter cover 20 becomes flat so that the design is improved. In addition, the cover 20f can also cover the second recess 20d.

[0029] The entire cutter cover 20 may be covered by the reading section 21 that opens and closes instead of the cover section 20f.

[0030] On the shear cover 20, a first recess 20a is formed with a Figure 5 The opening through which the thumb nut 78 is exposed is the first opening 20b as the first slit described in detail. Figure 6 The opening that exposes the knob 49 serving as the handle portion, that is, the second opening 20e, will be described in detail.

[0031] The first opening 20b is formed long in the left-right direction so that the thumb nut 78 can move in the width direction of the medium P, that is, in the left-right direction. The second opening 20e is formed long in the front-back direction in accordance with the shape of the knob 49. In addition, a slit 20c is formed in the first recess 20a as a second slit that is long in the left-right direction so that the user can insert the working cutter and move it in the width direction of the medium P.

[0032] Furthermore, the first opening 20 b and the slit 20 c are formed to be longer than the maximum width of the medium P in the left-right direction.

[0033] like Figure 3 As shown in FIG. 1 , the image recording device 1 includes a substrate 90. On the substrate 90, a control unit (not shown) and a storage unit (not shown) are mounted.

[0034] The control unit performs comprehensive control over each part of the image recording device 1. The control unit is configured to include a CPU (Central Processing Unit), a UART (Universal Asynchronous Receiver Transmitter) for managing input and output, an FPGA (Field Programmable Gate Array) or a PLD (Programmable Logic Device) as a logic circuit, etc. The CPU is also called a processor. The storage unit is configured to include a rewritable non-volatile memory, a volatile memory, and other memories.

[0035] The CPU of the control unit reads a program stored in the nonvolatile memory of the storage unit and uses the volatile memory as a work area to execute various processes.

[0036] Reference Figure 3 , the configuration of the image recording apparatus 1 will be described in the order of the transport path T and other paths along which the medium P is transported. The medium P is, for example, a sheet of paper or an envelope.

[0037] The medium P of a predetermined size such as A4 is stored in the storage section 15 by the user and is then installed inside the frame 13. The storage section 15 is a so-called tray, and at least the upper rear portion thereof is opened. The medium P is stored in the storage section 15 in such a manner that the width direction thereof is in the left-right direction of the image recording device 1.

[0038] A two-dot chain line indicates a conveyance path T along which the medium P is conveyed. A single-dot chain line indicates a reversing path R along which the medium P is reversed. Arrow marks indicate the conveyance direction of the medium P on each path.

[0039] The feed roller 32 of the feed unit 31 can contact the uppermost medium P among the stacked media P from the upper rear opening of the storage unit 15. The feed roller 32 rotates counterclockwise to feed the media P one by one to the transport path T from top to bottom.

[0040] The conveying unit 48 can convey the medium P fed from the feed roller 32 along the conveying path T. The conveying unit 48 is provided with a first roller pair 45, a second roller pair 46, and a third roller pair 47 in order from upstream to downstream in the conveying direction on the conveying path T. In addition, hereinafter, the upstream in the conveying direction is referred to as upstream, and the downstream in the conveying direction is referred to as downstream. The first roller pair 45 is arranged upstream of the recording unit 40. The second roller pair 46 is arranged between the recording unit 40 and the cutting unit 60 in the conveying direction. The third roller pair 47 is arranged downstream of the cutting unit 60.

[0041] The first roller pair 45 includes a first active roller 45a and a first driven roller 45b. The second roller pair 46 includes a second active roller 46a and a second driven roller 46b. The third roller pair 47 includes a third active roller 47a and a third driven roller 47b. Each roller pair can convey the medium P by sandwiching it between the active roller and the driven roller. In addition, although each active roller is arranged at the bottom and each driven roller is arranged at the top, they can also be arranged upside down.

[0042] The first driving roller 45a, the second driving roller 46a, and the third driving roller 47a are driven by a conveying motor (not shown). These driving rollers are connected by gears or belts, etc., and can rotate synchronously. These driving rollers are formed of resin such as rubber.

[0043] The first driven roller 45 b , the second driven roller 46 b , and the third driven roller 47 b can rotate following the respective opposing driving rollers.

[0044] The first roller pair 45 , the second roller pair 46 , and the third roller pair 47 are coupled so as to be able to rotate simultaneously.

[0045] The first roller pair 45 first conveys the medium P fed from the feed roller 32 , and therefore requires the highest nipping (Nip) force among the three roller pairs. The first driven roller 45 b is also molded from a resin such as rubber.

[0046] The second roller pair 46 and the third roller pair 47 are preferably located downstream of the recording unit 40 described later and are provided so as not to affect the recording result of the medium P. The second roller pair 46 and the third roller pair 47 do not require the same level of nipping force as the first roller pair 45 .

[0047] Therefore, the second driven roller 46b and the third driven roller 47b are made of metal such as stainless steel and have a shape having a thin gear-shaped protrusion to reduce the area in contact with the medium P to which ink is attached. Rollers of this shape are also called knurled rollers.

[0048] The conveyance path member 34 forms a curved portion of the conveyance path T between the storage section 15 and the first roller pair 45 in the conveyance path T. The conveyance path member 34 curves the conveyance path T from the storage section 15 upward toward the front and guides the conveyance path T toward the first roller pair 45 .

[0049] The transport path member 34 is configured such that a first transport path member 34a is disposed upstream and a second transport path member 34b is disposed downstream. A hole 34c as a through hole is formed between the first transport path member 34a and the second transport path member 34b.

[0050] The second conveying path member 34b of the conveying path member 34 is provided with a media sensor 50 capable of detecting the medium P on the conveying path T. The media sensor 50 may be a photo sensor for detecting the medium P. The media sensor 50 may be composed of a rod capable of coming into contact with the medium P, and a mechanical switch for detecting movement of the rod when coming into contact with the medium P, a photo sensor, or the like.

[0051] The media sensor 50 can detect the medium P at a position upstream of the first roller pair 45 on the transport path T.

[0052] The recording unit 40, which is a head for recording on the medium P, is located at a position facing the medium support unit 36 ​​from above and between the first roller pair 45 and the second roller pair 46. The recording unit 40 has a plurality of nozzles N on a discharge surface 42 that can discharge liquid such as ink supplied from the ink cartridge 18. The discharge surface 42 is located at a position facing the medium support unit 36. The medium P is transported by the transport unit 48 and is in a position supported from below by the medium support unit 36. The first surface S1 of the medium P faces the discharge surface 42 of the recording unit 40. The second surface S2 of the medium P is a surface opposite to the first surface S1 and is a surface supported by the medium support unit 36.

[0053] The recording unit 40 is mounted on a recording unit carriage (not shown) that can be moved left and right by a recording unit motor (not shown). The recording unit 40 records an image on the first surface S1 of the medium P by ejecting ink from the nozzle N while moving left and right by the recording unit carriage.

[0054] The inversion path member 37 has two surfaces, an upper surface and a lower surface, which are opposed to each other vertically, and forms an inversion path R between the two surfaces.

[0055] The switch portion 38 located downstream is provided at the front end of the upper surface of the reversing path component 37 so as to be rotatable around an axis extending left and right. In addition, the switch portion 39 located upstream is provided at the rear end of the lower surface of the reversing path component 37 so as to be rotatable around an axis extending left and right.

[0056] The switching parts 38 and 39 can move between a conveying position indicated by a solid line and a reversing position indicated by a dotted line. The switching parts 38 and 39 are moved to switch the path of the medium P. The movement of the switching parts 38 and 39 is performed by a plunger (not shown) using an electromagnet and a switching part motor (not shown).

[0057] When the switch portion 39 is in the conveying position, the upstream conveying path T is widened. The medium P can be smoothly conveyed from the storage portion 15 along the conveying path T without being hindered by the switch portion 39. In addition, when the switch portion 38 is in the conveying position, the medium P can be smoothly conveyed from the second roller pair 46 to the third roller pair 47 along the conveying path T without being hindered by the switch portion 38.

[0058] When the medium P is turned over, the rear end of the medium P, which is the upstream end of the medium P, is separated from the second roller pair 46 of the conveying unit 48, and the conveying unit 48 is temporarily stopped when passing through the switching unit 38. At this time, a portion of the medium P downstream and in front is clamped by the third roller pair 47 of the conveying unit 48, so that it can be conveyed in the opposite direction of the conveying direction.

[0059] The rear end of the medium P upstream has been detected by the media sensor 50 when passing through the conveying path member 34. Based on the detection of the media sensor 50, the control unit of the board 90 can stop the medium P at the position where the rear end of the medium P passes through the switching unit 38 by the conveying unit 48.

[0060] Next, the switching parts 38 and 39 move to the reverse position. The switching part 38 rotates so that the tip enters the conveying path T. In this state, the conveying part 48 including the third roller pair 47 is driven in a manner opposite to that during conveying, and the medium P is conveyed in a direction opposite to the conveying direction by the third roller pair 47. That is, the conveying part 48 is reversed.

[0061] The switching unit 38 can prevent the rear end of the medium P from advancing in a manner of returning to the conveying path T, and can expand the reversing path R so as to guide the medium P from the rear end to the reversing path R. Thereafter, the rear end of the initial medium P becomes the leading end and is conveyed on the reversing path R. In addition, hereinafter, the rear end of the initial medium P is also referred to as the rear end of the medium P.

[0062] The medium P is conveyed rearward along the reversing path R by the conveying unit 48 . The medium P is conveyed by the third roller pair 47 until the rear end of the medium P reaches the first roller pair 45 .

[0063] The rear switching unit 39 is also in the reversing position, and expands the reversing path R. After passing through the reversing path R, the trailing end of the medium P switches the path from the reversing path R to the conveying path T, and is smoothly conveyed.

[0064] When the rear end of the medium P is detected by the medium sensor 50, the control unit of the board 90 temporarily stops the conveying unit 48 after conveying the medium P until the rear end reaches the first roller pair 45 of the conveying unit 48. The switching units 38 and 39 return to the conveying position.

[0065] Then, the conveying unit 48 switches the driving mode so as to be driven in the same manner as in the initial conveying mode. That is, the conveying unit 48 returns from the reverse rotation to the original mode.

[0066] As in the initial state, the first roller pair 45 of the transport unit 48 can transport the medium P in the transport direction along the transport path T. The same applies to the other roller pairs.

[0067] In this way, the medium P is reversed. As a result, the second surface S2 of the medium P is now located opposite to the ejection surface 42 of the recording unit 40. The recording unit 40 can perform recording on the second surface S2 of the medium P.

[0068] Next, the cutting section 60 is located between the second roller pair 46 and the third roller pair 47 in the conveying direction. In addition, the cutting section 60 is provided downstream of the recording section 40 in the conveying direction of the medium P.

[0069] The cutting unit 60 includes a movable blade 61 as a first shearing device, a fixed blade 62 as a second shearing device, and a moving unit 70. The movable blade 61 is in a disk shape and is also called a circular blade. The fixed blade 62 is in a plate shape.

[0070] That is, the cutting unit 60 is configured to include a movable blade 61 that cuts the medium P and a fixed blade 62 that faces the movable blade 61 .

[0071] In addition, the movable blade 61 is not limited to a circular blade, and may be, for example, a shear blade or the like.

[0072] The cutting unit 60 includes a moving unit 70. The moving unit 70 includes a shearing carriage 71 that carries the movable blade 61. In the following, the shearing carriage 71 is simply referred to as the carriage 71. The carriage 71 moves in the width direction of the medium P, which is also the left-right direction of the scanning direction of the movable blade 61.

[0073] That is, the carriage 71 carries the movable blade 61 and moves the movable blade 61 in the scanning direction.

[0074] The movable blade 61 can also cut the medium P between the fixed blade 62 while moving together with the carriage 71. That is, the cutting unit 60 can cut the medium P conveyed by the conveying unit 48 by moving in the scanning direction intersecting the conveying direction.

[0075] Such a cutting unit 60 is referred to as a so-called automatic cutter, as opposed to a so-called manual cutter that cuts the medium P by hand.

[0076] The medium P cut by the cutting unit 60 is placed on the lower placement unit 16. The front downstream portion of the cut medium P is placed on the first placement unit 16m. The rear upstream portion of the cut medium P is placed on the second placement unit 16r.

[0077] Furthermore, the slit 20 c of the cutter cover 20 is arranged between the second roller pair 46 and the cutting unit 60 in the conveying direction.

[0078] Next, refer to Figures 4 to 6 Next, the structure of the cutting portion 60 will be described. Figure 4 As shown, the cutting unit 60 includes a movable blade 61, a fixed blade 62, and a moving unit 70. The moving unit 70 includes a carriage 71, a carriage guide 72, pulleys 73, 74, an endless belt 75, a carriage motor 76, and a sensor 80.

[0079] At the left and right ends of the carriage guide 72, a pulley 74 is arranged on the left side and a pulley 73 is arranged on the right side. An endless belt 75 is hung on the pulleys 73 and 74. The pulley 73 is fixed to the drive shaft of the carriage motor 76. The carriage 71 is mounted on the endless belt 75.

[0080] When the carriage motor 76 is driven, the pulleys 73 and 74 rotate, and the endless belt 75 rotates around the pulleys 73 and 74. At this time, the carriage 71 mounted on the endless belt 75 moves leftward and rightward. The movable blade 61 mounted on the carriage 71 also moves.

[0081] The movable blade 61 is rotatably supported by a gear shaft 77 mounted on the carriage 71. The fixed blade 62 is provided with a side wall 62b extending vertically and a side wall 62c continuing from the side wall 62b.

[0082] A thumb nut 78, which is a convex portion protruding upward, is provided at the upper portion of the carriage 71. The user can move the carriage 71 left and right by gripping the thumb nut 78 with fingers.

[0083] The sensor 80 is, for example, a rotary encoder. The control unit of the substrate 90 can determine the position of the carriage 71 and the movement of the carriage 71 based on the detection information of the sensor 80. In addition, in the following, when the control unit determines the position of the carriage 71 and the movement of the carriage 71 based on the detection information of the sensor 80, the control unit and the detection information may be omitted and only the sensor 80 detects the position of the carriage 71 and the movement of the carriage 71.

[0084] The sensor 80 can detect the position and movement of the carriage 71 by detecting the rotation of the pulley 74. The position and movement of the carriage 71 detected by the sensor 80 are also the position and movement of the movable blade 61.

[0085] In addition, when the reference position of the carriage 71 is set to the left end of the carriage guide 72, when the carriage 71 moves to the right from the reference position, the movable blade 61 shears the medium P. When the carriage 71 returns after shearing, it moves to the left and stops when it reaches the reference position. The reference position of the carriage 71 is also called the home position.

[0086] The control unit of the substrate 90 moves the carriage 71 to the left during the initialization operation of the carriage 71. The control unit can set the position where the carriage 71 hits the frame 13 or the like and the sensor 80 no longer detects the movement of the carriage 71 as the reference position. Alternatively, a method of providing a home position sensor at the reference position to detect the reference position may be adopted.

[0087] Alternatively, the reference position may be set to the right end of the carriage guide 72. In this case, when the carriage 71 moves in the left direction, the medium P may be sheared by the movable blade 61.

[0088] like Figure 5 As shown, the movable blade 61 is mounted on a carriage 71 , and the carriage 71 is mounted on an endless belt 75 to move.

[0089] At this time, the gear 86 mounted on the carriage 71 meshes with the rack 87 fixed to the frame 13 and rotates. At the same time, the gear shaft 77 of the gear 86 also rotates. The gear shaft 77 of the gear 86 is also the shaft of the movable blade 61. That is, the movable blade 61 is composed of the gear shaft 77 coaxial with the gear 86. With the rotation of the gear 86, the movable blade 61 mounted on the gear shaft 77 also rotates.

[0090] The movable blade 61 that moves while rotating due to the carriage 71 slides relative to the plate-shaped fixed blade 62 at the cutting position CP, thereby being able to shear the medium P between the movable blade 61 and the fixed blade 62 .

[0091] Here, the user's handling when the medium P is jammed in the cutting unit 60 is described. When the medium P is jammed, the torque of the carriage motor 76 may not be able to move the carriage 71. In addition, the jam of the medium P in the image recording device 1 or the like is also called a paper jam or a paper jam.

[0092] In this case, the user can move the thumb nut 78 in the left-right direction, which is the width direction of the medium P. A first slit, i.e., a first opening 20b, is formed at the upper portion of the cutter cover 20 and penetrates the inside along the scanning direction. The thumb nut 78 protrudes from the inside of the cutter cover 20 toward the outside through the first opening 20b.

[0093] The thumb nut 78 is exposed from the first opening 20b and can be grasped by the user. Even when the carriage 71 cannot be moved by the torque of the carriage motor 76 due to paper jam, the user can move the carriage 71 by the thumb nut 78. As the thumb nut 78 moves, the movable blade 61 also moves together with the carriage 71, so that the jammed medium P can be sheared in the width direction.

[0094] In addition, the upper portion of the cutter cover 20 has a slit 20c which is arranged side by side with the first opening 20b and penetrates the interior along the scanning direction. The user can insert the working cutter through the slit 20c of the cutter cover 20. The slit 20c is arranged at the upstream side of the first opening 20b.

[0095] The working shear can reach the position of the fixed blade 62 of the cutting section 60 and the position of the jammed medium P. Furthermore, the user can move the working shear in the left-right direction along the slit 20c to shear the jammed medium P in the width direction. If the user cannot shear the jammed medium P even if the thumb nut 78 is moved, the user can shear it with the working shear.

[0096] A first recessed portion 20a that is recessed downward from the upper surface is formed in the cutter cover 20. The space formed by the first recessed portion 20a makes it easy for the user to operate the thumb nut 78 and the working cutter by hand.

[0097] Furthermore, the first recess 20a allows the top of the thumb nut 78 to be located at a lower height than the upper surface of the cutter cover 20. Therefore, the thumb nut 78 does not interfere with the cutter cover 20 and the reading unit 21.

[0098] After the user operates the thumb nut 78 and the working cutter to cut the clogged medium P, the cut medium P remains near the cutting section 60. A portion of the medium P on the upstream side after the cut in the width direction is at least clamped by the second roller pair 46. In addition, a portion of the medium P on the upstream side may be clamped by the first roller pair 45.

[0099] Although in Figure 6 In order to facilitate the following description Figure 7 Although the description shows a state in which a part of the medium P on the upstream side is sandwiched by the first roller pair 45 , the same state also occurs in the case of the second roller pair 46 .

[0100] like Figure 6As shown, an emergency knob 49 is attached to the shaft 45c of the first driven roller 45b of the first roller pair 45 as a rotation shaft. The first driven roller 45b and the knob 49 are connected by the same shaft 45c. The knob 49 is exposed from the second opening 20e.

[0101] When the user rotates the knob 49 counterclockwise, the first driven roller 45b connected via the shaft 45c also rotates counterclockwise.

[0102] As described above, the first roller pair 45, the second roller pair 46, and the third roller pair 47 are linked together. When the first driven roller 45b rotates counterclockwise, these roller pairs also rotate simultaneously.

[0103] As a result, the medium P between the first driving roller 45 a and the first driven roller 45 b can be conveyed in the rearward removal direction F. When the medium P exists on the second roller pair 46 , it can be conveyed toward the rearward first roller pair 45 .

[0104] The second recess 20d is formed on the cutter cover 20. The space formed by the second recess 20d makes it easy for the user to operate the knob 49 by hand. In addition, the second recess 20d makes the knob 49 located at a position where it does not interfere with the cutter cover 20 and the reading unit 21.

[0105] In addition, a portion of the medium P on the downstream side that has been cut by the user is clamped by the third roller pair 47. The third roller pair 47 does not have the same clamping force as the first roller pair 45. Before the user operates the knob 49, the user can easily pull out a portion of the medium P on the downstream side from the third roller pair 47 side with a lower clamping force through the frame opening 17.

[0106] In addition, the knob 49 may be attached to the first driving roller 45a of the first roller pair 45. The medium P can be conveyed in the same manner as when the knob 49 is attached to the first driven roller 45b.

[0107] As described above, since the first roller pair 45 , the second roller pair 46 , and the third roller pair 47 are connected together, the knob 49 may also be mounted on the second roller pair 46 or the third roller pair 47 .

[0108] That is, in at least one of the first roller pair 45 , the second roller pair 46 , and the third roller pair 47 , the knob 49 for rotatably placing the rotation shaft of one roller constituting the roller pair can be provided.

[0109] Furthermore, the user can also rotate the knob 49 clockwise to convey a portion of the medium P on the downstream side toward the housing opening 17 and remove it.

[0110] like Figure 7 As shown in FIG. 1 , a door leaf 33 as an openable and closable door leaf portion is provided on the rear surface of the housing 13 as the apparatus main body 12. When the door leaf 33 is opened, the conveying path member 34 is exposed.

[0111] As described above, the conveying path member 34 forms a curved conveying path T between the storage portion 15 and the first roller pair 45 in the conveying path T. In addition, the conveying path member 34 is provided with a first conveying path member 34a at the upstream of the conveying direction and a second conveying path member 34b at the downstream. Figure 7 The second transport path member 34 b is located in the frame 13 and is hidden.

[0112] A hole 34c as a through hole is formed between the first conveying path member 34a and the second conveying path member 34b. The hole 34c is located at the same height as the first roller pair 45. As described later, the hole 34c is an opening for a user to remove a medium P that has become clogged.

[0113] That is, in the conveyance path member 34 as a portion of the conveyance path T corresponding to the upstream side in the conveyance direction relative to the first roller pair 45 , a hole 34 c as a through hole penetrating the inside is formed at the same height as the first roller pair 45 .

[0114] Reference Figure 6 as well as Figure 7 As described above, the user can rotate the knob 49 counterclockwise to smoothly convey the cut upstream medium P part from the first roller pair 45 toward the hole 34 c of the conveyance path member 34 in the removal direction F which is the rearward direction.

[0115] The medium P is transported to the position of the hole 34c of the transport path member 34 and can be exposed from the hole 34c. The user can easily remove the medium P by grabbing it from the hole 34c. This can prevent the user from pulling the clogged medium P and causing the medium P to be torn and left.

[0116] In addition, a hole 34d is formed in the frame 13, which is connected to the hole 34c. The hole 34d is a small cutout into which a finger can be inserted. The inner peripheral surface of the hole 34d has a curved surface. The hole 34d is exposed by opening the door leaf 33. The user can easily grasp the medium P by inserting a finger from the hole 34d toward the hole 34c, and can easily remove the medium P from the inside of the frame 13 to the outside.

[0117] The movable blade 61 mounted on the carriage 71 of the cutting section 60 may become immobile due to the medium P jammed in the cutting section 60. According to the structure of the image recording apparatus 1 described above, the jammed medium P can be cut by the user operating the thumb nut 78 and the working cutter.

[0118] Furthermore, the user can transport and remove the cut medium P to the housing opening 17 or the hole 34c of the transport path member 34 by operating the knob 49. The cutting unit 60 can cut the medium P again.

[0119] 2. Control method of image recording device

[0120] Reference Figure 8 The control method of the image recording device 1 is described. The carriage 71 of the moving portion 70 of the cutting portion 60 and the movable blade 61 of the cutting portion 60 mounted on the carriage 71 are at a reference position as a predetermined position. In addition, hereinafter, the carriage 71 is omitted and the movable blade 61 is described as the center, and the starting position as the reference position is referred to as HP.

[0121] Reference Figure 4 As described above, the control unit mounted on the base plate 90 drives the carriage motor 76 of the moving unit 70 to perform a shearing operation of moving the movable blade 61 rightward from HP to shear the medium P ( S100 ).

[0122] At this time, the control unit detects the movement of the movable blade 61 through the sensor 80 , and determines whether the movable blade 61 has moved across the entire width of the medium P and has completed cutting the medium P ( S101 ).

[0123] When the control unit detects through the sensor 80 that the movable blade 61 has moved across the entire width of the medium P and has completed cutting the medium P ( S101 : Yes), the processing ends.

[0124] On the other hand, when the control unit detects through the sensor 80 that the movable blade 61 has not moved across the entire width of the medium P and determines that the medium P has not been cut (S101: No), the control unit stops the carriage motor 76 and counts the number of times the cutting operation has been performed. This is because the movable blade 61 may not be able to move across the entire width of the medium P due to a jammed medium P.

[0125] The control unit determines whether the number of shearing operations has reached M times (S200). For example, M times is 10 times.

[0126] When the control unit determines that the number of shearing operations has not reached M times ( S200 : No), the control unit repeats the shearing operation ( S100 ) again.

[0127] That is, the control unit repeatedly performs the cutting operation until the number of times of the cutting operation reaches M when the cutting operation cannot be completed. This is because the cutting unit 60 may be able to complete the cutting if it repeatedly performs the cutting operation.

[0128] On the other hand, when the control unit determines that the number of shearing operations has reached M times (S200: Yes), the control unit drives the carriage motor 76 to move the movable blade 61 toward HP (S201). At this time, the control unit can determine that the medium P has not been correctly sheared by the cutting unit 60. This is because there is a high possibility that the cutting unit 60 cannot complete the shearing even if it repeatedly performs the shearing operation to a greater extent.

[0129] The control unit determines whether the movable blade 61 is returned to the HP and is at the HP through the sensor 80 (S202). When the control unit determines that the movable blade 61 is at the HP (S202: Yes), the medium P is conveyed by the conveying unit 48 by a predetermined length (S203). The predetermined length is the length of the upstream end of the medium P passing the position of the medium sensor 50 in the conveying path member 34.

[0130] The control unit determines whether the medium P is detected by the media sensor 50 ( S204 ).

[0131] When the control unit determines that the medium P is detected by the medium sensor 50 (S204: Yes), the first display information is displayed by the input / output unit 14 (S205), and the process ends. Hereinafter, the first display information is simply referred to as the first display.

[0132] When the conveying unit 48 correctly completes conveying the predetermined length, the upstream end of the medium P will pass the position of the media sensor 50 , and thus the medium P will be located at a position that is not detected by the media sensor 50 .

[0133] On the other hand, when the medium P is at a position detected by the medium sensor 50 , the conveying unit 48 cannot accurately convey the medium P by a predetermined length. In this case, the control unit can determine that a paper jam has occurred in the conveying unit 48 .

[0134] The first display displayed by the input / output unit 14 is an error display indicating that a paper jam has occurred in the conveying unit 48. The first display includes an error display indicating that the cutting unit 60 has not correctly cut the medium P.

[0135] When the control unit determines that the conveying unit 48 has correctly completed the conveying of the predetermined length and the medium P is not detected by the medium sensor 50 (S204: No), the second display information is displayed through the input / output unit 14 (S206), and the process ends. Hereinafter, the second display information is referred to as the second display. The second display is a display of an error indicating that the cutting unit 60 has failed to correctly cut the medium P.

[0136] When the control unit determines that the movable blade 61 has not returned to the HP and is not at the HP (S202: No), the carriage motor 76 is stopped, and the number of times the movable blade 61 is intended to be moved to the HP is determined to be N times (S300). This is because the movable blade 61 may not be able to return to the HP due to the jammed medium P. For example, N times is less than M times, and is 5 times.

[0137] When the control unit determines that the number of times the movable blade 61 is intended to move toward HP has not reached N times (S300: No), the movable blade 61 is repeatedly moved toward HP (S201). This is because the movable blade 61 may return to HP if the moving unit 70 repeatedly moves it.

[0138] On the other hand, when the control unit determines that the number of attempts to move the movable blade 61 toward HP has reached N times (S300: Yes), the control unit displays the third display information via the input / output unit 14 (S301). Hereinafter, the third display information will be referred to as the third display.

[0139] This is because there is a high possibility that the movable blade 61 cannot be returned to HP even if the movable blade 61 is repeatedly moved to a greater extent. The control unit cannot accurately move the movable blade 61 to HP, and it can be determined that the medium P is jammed in the cutting unit 60 .

[0140] The third display includes information indicating that the user is urged to move the thumb nut 78 to cut the clogged medium P and then move the thumb nut 78 to the left HP. The third display may include information indicating that the user is urged to insert the working cutter into the slit 20c to move it, thereby cutting the clogged medium P. The third display may include information indicating that the user is urged to rotate the knob 49 to remove the cut medium P.

[0141] Furthermore, the third indication may include content prompting the user to input an indication to cut and remove the clogged medium P and then operate the input / output unit 14 to cut and remove the clogged medium P.

[0142] That is, when the movable blade 61 has not returned to HP, the control unit stops the carriage motor 76 based on the detection information of the sensor 80, stops the driving of the cutting unit 60, and displays information indicating that the thumb nut 78 is operated.

[0143] The control unit can clearly present to the user a method for handling a paper jam, thereby improving the convenience of the processing of the image recording apparatus 1 performed by the user.

[0144] The user can visually check the third display through the input / output unit 14. The user moves the thumb nut 78 based on the third display and moves the movable blade 71 together with the carriage 71, thereby cutting the clogged medium P. At this time, the user can also insert the working shear into the slit 20c and move it, thereby cutting the clogged medium P. The user rotates the knob 49, thereby removing the cut medium P. After cutting and removing the clogged medium P, the user can move the thumb nut 78 to the left HP.

[0145] Then, the user operates the input / output unit 14 to input information indicating that the jammed medium P has been cut and removed.

[0146] The control unit determines whether the user has operated the thumb nut 78 or the like based on the input of the input / output unit 14 by the user ( S302 ).

[0147] When the control unit determines that the user has not operated the thumb nut 78 or the like ( S302 : No), the control unit repeats the display of the third display ( S301 ).

[0148] On the other hand, when the control unit determines that the user has operated the thumb nut 78 or the like (S302: Yes), the control unit determines whether the movable blade 61 is in HP as a result of the operation of the thumb nut 78 or the like through the sensor 80 (S303).

[0149] When the control unit determines that the movable blade 61 is not at HP (S303: No), the control unit displays the fourth display information via the input / output unit 14 (S304), and ends the process. Hereinafter, the fourth display information is simply referred to as the fourth display.

[0150] The fourth display is a content that displays an error indicating that the movable blade 61 cannot be returned to HP even if the user operates the thumb nut 78 or the like. The fourth display may also include a content that displays an error indicating that the medium P is blocked in the cutting section 60. In addition, the fourth display may also include a content that displays an error indicating that the medium P cannot be correctly cut in the cutting section 60.

[0151] On the other hand, when the control unit determines that the movable blade 61 is at the HP (S303: Yes), the control unit proceeds to the process of conveying the medium P (S203) by the conveying unit 48 described above. The subsequent processes are the same as the above processes.

[0152] According to the above-mentioned embodiment, the image recording device 1 with a cutter cover 20 includes: a conveying section 48, which conveys the medium P along the conveying path T; a recording section 40, which records the image on the conveyed medium P; and a cutting section 60, which is arranged downstream of the conveying direction of the medium P relative to the recording section 40 and moves in a scanning direction intersecting the conveying direction, thereby cutting the conveyed medium P.

[0153] The cutting section 60 includes: a movable blade 61, which cuts the medium P while moving; a fixed blade 62, which is opposite to the movable blade 61; a slide 71, which carries the movable blade 61 and moves the movable blade 61 in the scanning direction; and a thumb nut 78, which is arranged at the upper part of the slide 71 and protrudes upward.

[0154] A first opening 20 b is formed at an upper portion of the cutter cover 20 and passes through the inside in the scanning direction. The thumb nut 78 protrudes from the inside of the cutter cover 20 toward the outside through the first opening 20 b.

[0155] According to the image recording apparatus 1 of such a structure, even if the medium P is clogged in the cutting section 60 or the like and the carriage 71 cannot be moved by the torque of the carriage motor 76, the user can move the carriage 71 by the thumb nut 78. As the thumb nut 78 moves, the movable blade 61 also moves together with the carriage 71, so that the clogged medium P can be sheared in the width direction.

[0156] The user can convey and remove the cut medium P to the housing opening 17 or the hole 34 c of the conveyance path member 34 by operating the knob 49 or the like.

[0157] Although the embodiments have been described in detail with reference to the drawings, the specific configuration is not limited to the embodiments, and changes, replacements, deletions, etc. may be made without departing from the gist of the invention.

[0158] Explanation of symbols

[0159] 1…image recording device; 12…device body; 13…frame; 14…input / output unit; 20…cutter cover; 20a…first recess; 20b…first opening; 20c…slit; 20d…second recess; 20e…second opening; 20f…cover; 21…reading unit; 33…door leaf; 34…transport path member; 34a…first transport path member; 34b…second transport path member; 34c…hole; 40…recording unit; 45…first roller pair; 46…second Roller pair; 47…third roller pair; 48…conveying section; 49…knob; 50…medium sensor; 60…cutting section; 61…movable blade; 62…fixed blade; 70…moving section; 71…cutter slide; 72…slide guide; 73, 74…pulleys; 75…endless belt; 76…slide motor; 77…gear shaft; 78…thumbnail nut; 80…sensor; 90…substrate; CP…cutting position; P…medium; S1…first side; S2…second side; T…conveying path.

Claims

1. An image recording device having a cutter cover and comprising: A conveying unit that conveys the medium along a conveying path; a recording unit that records an image on the medium being conveyed; a cutting unit which is disposed downstream of the recording unit in the conveying direction of the medium and cuts the conveyed medium, The cutting portion has: a first cutter that cuts the medium while moving in a scanning direction intersecting the conveying direction; a second shearing device, which is opposite to the first shearing device; a shears carriage for carrying the first shears and moving the first shears in the scanning direction; a convex portion which is provided at an upper portion of the shearing device carriage and protrudes upward, A first slit is formed at the upper portion of the cutter cover and penetrates the inside along the scanning direction. The convex portion protrudes from the inside of the cutter cover toward the outside through the first slit.

2. The image recording device according to claim 1, wherein: The portion of the cutter cover where the first slit is formed has a recessed portion recessed downward from the upper surface of the cutter cover. The height position of the top of the convex portion is lower than the upper surface.

3. The image recording device according to claim 1, wherein: A cover portion is provided, and the cover portion can open and close the recessed portion.

4. The image recording device according to claim 1, wherein: A second slit is provided at an upper portion of the cutter cover. The second slit is arranged side by side with the first slit and penetrates the inside along the scanning direction.

5. The image recording device according to claim 4, wherein: The conveying unit comprises: a first roller pair disposed upstream of the recording portion in the conveying direction; a second roller pair arranged between the recording section and the cutting section in the conveying direction; a third roller pair disposed downstream of the cutting section in the conveying direction, The second slit is arranged between the second roller pair and the cutting portion in the conveying direction.

6. The image recording device according to claim 1, wherein: have: A display unit capable of displaying information; a sensor that detects the position of the shear carriage; Control Department, When the first cutter has not returned to a predetermined position, the control unit stops driving the cutting unit based on detection information of the sensor and displays information indicating that the convex portion has been operated.

7. The image recording device according to claim 1, wherein: The conveying unit comprises: a first roller pair disposed upstream of the recording portion in the conveying direction; a second roller pair arranged between the recording section and the cutting section in the conveying direction; a third roller pair disposed downstream of the cutting section in the conveying direction, In at least one of the first roller pair, the second roller pair, and the third roller pair, a handle capable of rotating the rotation shaft is provided on one rotation shaft constituting the roller pair.

8. The image recording device according to claim 1, wherein: The conveying unit comprises: a first roller pair disposed upstream of the recording portion in the conveying direction; a second roller pair arranged between the recording section and the cutting section in the conveying direction; a third roller pair disposed downstream of the cutting section in the conveying direction, A through hole penetrating the interior and a door portion capable of opening and closing the through hole are provided at the same height as the first roller pair at a portion of the conveying path corresponding to upstream in the conveying direction with respect to the first roller pair.

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