JP5830970B2 - Image recording device - Google Patents

Description

  The present invention relates to an image recording apparatus capable of recording an image on a sheet conveyed through a conveyance path provided therein.

  Many image recording apparatuses capable of recording an image on a sheet include a sheet conveyance path therein. The image recording apparatus conveys the sheet along the conveyance path by sandwiching the sheet between the pair of rollers. Further, the image recording measure includes a recording unit that records an image on a sheet in the conveyance path. Patent Document 1 discloses a recording apparatus including a recording head that performs recording by ejecting ink onto a recording medium transported through a transport path provided therein.

  The image recording apparatus also includes a discharge roller that conveys the sheet to a conveyance path where the sheet that has passed through the recording unit is guided, and discharges the sheet to the outside through an opening provided in the apparatus, and a sheet after image recording And a mechanism for preventing it from floating upward. The mechanism is, for example, a roller or a spur.

JP 2005-161839 A

  The conveyance path through which the sheet that has passed through the recording unit is guided is configured with a minimum necessary space for conveying the sheet and is narrow. Further, as described above, the discharge path and a mechanism such as a spur are provided in the conveyance path. Therefore, when a sheet is jammed in the conveyance path, it is difficult for the user to access the jammed sheet through the opening. In such a state, if the sheet is forcibly pulled, the sheet may be torn.

  Moreover, since the conveyance path is narrow, it is difficult for light to reach from the outside, and it is difficult for the user to visually recognize a sheet jammed in the conveyance path through the opening. In particular, when a sheet is torn inside the conveyance path as described above, it is difficult to find a piece of the torn sheet. If another sheet is transported through the transport path in a state where the torn piece of the sheet remains in the transport path, there is a risk of further sheet jamming.

  Further, when the image recording apparatus is capable of duplex printing, the conveyance path is further narrowed. This will be described in detail below. Usually, in an image recording apparatus capable of duplex printing, a sheet is branched from a conveyance path (hereinafter referred to as a first conveyance path in this paragraph) downstream of the recording unit, and the sheet is guided again to the upstream side of the recording unit. A second transport path is provided. The image recording apparatus capable of double-sided printing is provided with a mechanism for switching the path along which the sheet is guided. The mechanism changes between a first posture capable of guiding the sheet from the first conveyance path to the outside of the apparatus and a second posture capable of guiding the sheet from the first conveyance path to the second conveyance path. Due to the presence of the mechanism, the first conveyance path and the second conveyance path are further narrowed.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an image recording apparatus that can easily take out a sheet jammed inside.

  (1) An image recording apparatus according to the present invention includes a first conveyance path that guides a sheet along a first conveyance direction, and a recording unit that is provided above the first conveyance path and records an image on the sheet. The recording unit is provided below the first conveyance path so as to be opposed to the recording unit, and is provided on the downstream side in the first conveyance direction from the support member, and a support member that supports the sheet. A first roller pair that transports in the first transport direction, and a movable member that is slidable along the horizontal direction below the support member. The movable member is composed of a horizontal surface and an inclined surface capable of supporting the support member at a first position, and slides from the first position to the second position to guide the support member downward. And a horizontal surface and an inclined surface capable of supporting the lower first roller among the rollers constituting the first roller pair at the first position, and sliding from the first position to the second position. And a second guide surface for guiding the first roller downward, and an operation portion provided at one end in the sliding direction and gripped for sliding.

  In this configuration, the user can hold the operation unit and slide the movable member from the first position to the second position. As a result, the support member and the first roller provided below the first transport path are guided downward. As a result, the space constituting the first transport path can be increased.

  (2) The image recording apparatus of the present invention further includes a tray on which a sheet can be placed and which can be attached to and removed from the apparatus. The movable member further includes a convex portion protruding in a direction intersecting the first transport direction. The tray includes an abutting portion that abuts on the convex portion in a state of being mounted on the apparatus and stops sliding of the movable member from the first position to the second position.

  In a state where the tray is removed from the image recording apparatus, the sheet placed on the tray cannot be fed to the recording unit, and thus image recording on the sheet cannot be performed. On the other hand, in a state where the tray is mounted on the image recording apparatus, image recording on a sheet can be executed. In this configuration, since the contact portion is provided on the tray, the user cannot slide the movable member from the first position to the second position when the tray is mounted on the apparatus. As a result, in a state where the tray is mounted on the image recording apparatus, the movable member is maintained at the first position, which is the position when the image is recorded on the sheet, and the second position where image recording on the sheet is impossible. It will not slide into position. Therefore, it is possible to prevent the image recording on the sheet from being erroneously performed in the state where the movable member is in the second position.

  (3) The image recording apparatus of the present invention is capable of placing a sheet, and a tray that can be mounted on and removed from the apparatus, and the sheet placed on the tray is supplied to the first transport path. A feed roller, an arm provided above the tray and provided with the feed roller on the front end side, and provided above the arm, and the arm is attached to be rotatable about the base end side. A first frame composed of a pair of side plates that are erected upward from both ends of the bottom plate in a width direction along a sheet support surface by the support member and perpendicular to the first conveying direction; And a second frame fixed at both ends in the width direction by the side plates. The movable member is supported by the second frame.

  In order to maintain good quality of the image recorded on the sheet supported by the support member by the recording unit, the gap between the support member and the recording unit needs to be maintained constant. However, if the movable member is slidable, the position of the support member supported by the movable member cannot be completely fixed. That is, it is difficult to keep the gap between the support member and the recording unit constant. However, in this configuration, the movable member is supported by the second frame fixed to the main body of the image recording apparatus. Thereby, the position of the movable member can be fixed. Therefore, the position of the support member supported by the movable member can also be fixed. Therefore, the gap between the support member and the recording unit can be kept constant.

  (4) The image recording apparatus of the present invention is provided with a feeding roller that supplies the sheet placed on the tray to the first conveying path, and is provided above the tray, and the feeding roller is provided on the leading end side. And a bottom plate provided above the arm, the arm being attached to be pivotable about a base end side, and perpendicular to the first transport direction and along a sheet support surface by the support member A first frame including a pair of side plates standing upward from both ends of the bottom plate in the width direction, and a second frame having both ends in the width direction fixed by the pair of side plates. The movable member is supported by the second frame.

  Also in this configuration, the gap between the support member and the recording unit can be kept constant as in the configuration (3).

  (5) The sliding direction of the movable member is the same as the mounting and withdrawal directions of the tray. The movable member is slid from the second position to the first position by being pushed by the tray during the process of mounting the tray on the apparatus.

  In this configuration, when the removed tray is attached to the image recording apparatus, the posture of the movable member is changed from the second position to the first position. That is, the user can return the conveyance path to a state in which the sheet can be guided only by attaching the tray to the image recording apparatus.

  (6) The image recording apparatus of the present invention includes a second conveyance path that guides a sheet from the downstream side in the first conveyance direction from the first roller pair to the upstream side in the first conveyance direction from the support member; A first posture that is provided downstream of the first roller pair in the first conveying direction and above the first conveying path and guides the sheet conveyed in the first conveying direction to the downstream side; and A guide plate capable of changing posture between a second posture for guiding a sheet conveyed in a second conveyance direction opposite to the first conveyance direction to the second conveyance path, and the first conveyance direction from the guide plate And a second roller pair that conveys the sheet in the first conveyance direction or the second conveyance direction by forward rotation or reverse rotation. The movable member includes a horizontal surface and an inclined surface that can support the guide plate at the first position, and slides from the first position to the second position to guide the guide plate upward. The guide surface is composed of a horizontal surface and an inclined surface capable of supporting the lower second roller among the rollers constituting the second roller pair at the first position, and slides from the first position to the second position. And a fourth guide surface for guiding the second roller downward.

  With this configuration, even in an image recording apparatus capable of double-sided printing, the same effect as the configuration (1) can be obtained. That is, the user can hold the operation unit and slide the movable member from the first position to the second position. Thereby, in addition to the supporting member and the first roller provided below the first transport path, the second roller is guided downward. Further, a guide plate provided above the first transport path is guided upward. As a result, the space constituting the first transport path and the second transport path can be increased.

(7) The image recording apparatus of the present invention is provided downstream of the first roller pair in the first conveyance direction, and includes a second roller pair that conveys at least the sheet in the first conveyance direction, and the first roller pair. And a flap member rotatably supported on the shaft of the lower second roller of the rollers constituting the two-roller pair. The tray may have a flap support portion that supports the flap member from below when mounted on the apparatus. The flap member forms a part of a lower surface that defines the first conveyance path at a third position supported by the flap support part, and the first conveyance is not supported by the flap support part. It is freely rotatable in a first direction that opens the path.

  When taking out the sheet jammed in the first conveyance path, the user slides the movable member from the first position to the second position after removing the tray from the image recording apparatus. By removing the tray, a part of the lower surface of the first transport path is opened, and a passage leading from the outside to the first transport path is formed. Further, the support member and the first roller provided below the first transport path are guided downward by the slide of the movable member, and the space constituting the first transport path is increased. Accordingly, access to the first transport path from the outside is further facilitated.

  (8) In a state where the flap member is not supported by the flap support portion, the flap member may be rotatable in the first direction until the rotation tip reaches the upper side of the axis of the second roller.

  By rotating in the first direction until the rotation tip of the flap member reaches above the axis of the second roller, access to the first conveyance path from the outside becomes easier.

  (9) When the movable member is in the first position, the movable member deviates from the rotation trajectory of the flap member, and when the movable member is in the second position, the flap member is rotated. You may have the control part located in a locus | trajectory. The said restraining part abuts on the said flap member in the said rotation locus | trajectory, and stops that the said flap member rotates to the 2nd direction opposite to the said 1st direction.

  According to this configuration, since the rotation of the flap member in the second direction is restricted by the restraining portion, the flap member is rotated in the second direction without being noticed by the user, and the passage to the first conveyance path is blocked. This is avoided. Further, since the flap member cannot be rotated in the second direction, the user is easily aware of the presence of the flap member in contact with the hand or the arm. That is, there is an effect of facilitating the user turning the flap member in the first direction that opens the passage.

  (10) The flap member includes a C-shaped engaging portion that engages with the shaft of the second roller, and a claw protruding upward from the lower side of the opening periphery of the engaging portion. May be. The said restraining part is arrange | positioned below the said flap support part. The opening of the engaging portion faces downward when the flap member is in the third position.

  When the tray is inserted, the flap support portion of the tray pushes up the flap member to rotate it in the second direction. On the other hand, when the movable member is in the second position, the restraining portion of the movable member tries to restrain its rotation. That is, the flap member receives a force in the opposite rotational direction by the flap support portion and the contact portion.

  When the flap member is attached to the outer peripheral side of the shaft by, for example, a C-shaped engaging portion, the above-described two forces act as moments, and the flap member may be detached from the shaft. On the other hand, in the configuration in which the hole is provided in the flap member and the shaft is inserted, the process of attaching the flap member becomes complicated. According to this structure, even if the force of the direction which removes a flap member from an axis | shaft acts, since a nail | claw fits with an axis | shaft, it is prevented that a flap member remove | deviates from an axis | shaft.

  (11) The configuration including the flap member can be similarly applied to an image recording apparatus capable of duplex printing as described above.

  (12) The movable member is provided outside the both ends of the first conveying path in the width direction perpendicular to the first conveying direction and along the sheet supporting surface by the supporting member. Each of the movable members can slide individually.

  In the case where a pair of movable members are provided in the width direction, in order to enable the pair of movable members to slide together, a separate member for connecting the pair of movable members is required. There is no need to add such a member. Further, in this configuration, each of the movable members can be slid with less force than connecting a pair of movable members to each other and sliding them together. Further, when the sheet piece remains on only one side in the width direction in the first conveyance path, only one of the movable members can be slid to widen the conveyance path. Thereby, the piece of a sheet | seat can be taken out easily.

  In this invention, the space which comprises a 1st conveyance path can be enlarged by sliding a movable member. Thereby, when the sheet is jammed in the first conveyance path, the sheet can be easily taken out.

FIG. 1 is a perspective view of a multifunction machine 10 as an example of the first embodiment of the present invention. FIG. 2 is a longitudinal sectional view schematically showing the internal structure of the printer unit 11. FIG. 3 is a perspective view of the frames 51 and 52, the rollers 60, 62 and 45, and the paper discharge holding unit 79. FIG. 4 is a perspective view of the movable member 90. FIG. 5 is a perspective view showing a state in which the movable member 90 supports the platen 42 and the rollers 62 and 45. FIG. 6 is a longitudinal sectional view showing the movable member 90, the platen 42, the rollers 62 and 45, and the guide plate 41 in a state where the tray 20 is mounted on the multifunction machine 10. FIG. 7 is a longitudinal sectional view showing the movable member 90, the platen 42, the rollers 62 and 45, and the guide plate 41. FIG. 7A shows a state where the movable member 90 is in the first position. B) shows a state where the movable member 90 is in the second position. FIG. 8 is a longitudinal sectional view showing the movable member 90, the platen 42, and the rollers 62 and 45. FIG. 8A shows a state in which the movable member 90 is in the first position, and FIG. A state in which the member 90 is in the second position is shown. FIG. 9 is a longitudinal sectional view of the printer unit 120 according to the second embodiment of the present invention. FIG. 10 is a longitudinal sectional view of the flap 121. FIG. 11 is a longitudinal sectional view of the tray 122. FIG. 12 is a longitudinal sectional view of the printer unit 120 and shows a state in which a passage 133 leading to the conveyance path 65 is formed. FIG. 13 is a longitudinal sectional view of the printer unit 120 at the timing when the tray 122 is mounted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings as appropriate. The embodiment described below is merely an example of the present invention, and it is needless to say that the embodiment of the present invention can be changed as appropriate without departing from the gist of the present invention. In the following description, the vertical direction 7 is defined with reference to a state in which the multifunction machine 10 is installed (the state shown in FIG. 1), and the side where the opening 13 is provided is the front side (front side). 8 is defined, and a left-right direction 9 is defined when the multifunction machine 10 is viewed from the front side (front side).

[First Embodiment]
As shown in FIG. 1, the multifunction machine 10 is generally formed in a thin rectangular parallelepiped, and a printer unit 11 of an ink jet recording system is provided at the lower part. The multifunction machine 10 has various functions such as a facsimile function and a print function. The print function has a double-sided image recording function for recording images on both sides of the recording paper. The presence or absence of functions other than the print function is arbitrary. The printer unit 11 includes a casing (housing) 14 having an opening 13 formed in the front, and a tray 20 (an example of the tray of the present invention) on which recording papers of various sizes (an example of the sheet of the present invention) can be placed. 2) can be inserted and removed from the opening 13 in the front-rear direction 8. That is, the tray 20 can be attached to and removed from the multifunction machine 10.

[Configuration of Printer Unit 11]
As shown in FIG. 2, the printer unit 11 is provided above the tray 20 and picks up and feeds recording paper from the tray 20, and is fed by the paper feeding unit 15. An ink jet recording type recording unit 24 (an example of the recording unit of the present invention) that discharges ink droplets onto a recording sheet and records an image on the recording sheet, a guide plate 41 (an example of the guide plate of the present invention), and the like are provided. Yes. The recording unit 24 is not limited to the ink jet system, and various recording systems such as an electrophotographic system can be applied.

[Paper Feeder 15]
As shown in FIG. 2, the paper feeding unit 15 is provided above the tray 20 and below the recording unit 24. The paper feed unit 15 includes a paper feed roller 25 (an example of the feed roller of the present invention), a paper feed arm 26 (an example of the arm of the present invention), and a drive transmission mechanism 27. The paper feed roller 25 is pivotally supported at the tip of the paper feed arm 26. The paper feed arm 26 rotates in the direction of an arrow 29 about a support shaft 28 provided at the base end. Thereby, the paper feed roller 25 can be brought into contact with and separated from the tray 20. That is, the paper feed roller 25 can come into contact with the recording paper placed on the tray 20. The sheet feeding roller 25 is rotated by a driving force transmitted from a sheet feeding motor (not shown) by a drive transmission mechanism 27 in which a plurality of gears are engaged. The paper feed roller 25 is a curved path that will be described below by separating the recording paper from the other recording paper in contact with the uppermost recording paper among the recording papers stacked on the tray 20. Supply to 65A.

[Conveyance path 65]
As shown in FIG. 2, inside the printer unit 11, there is a conveyance path 65 (first conveyance of the present invention) from the front end (rear end) of the tray 20 through the recording unit 24 to the paper discharge holding unit 79. An example of a path) is formed. The conveyance path 65 is divided into a curved path 65 </ b> A formed between the leading end of the tray 20 and the recording unit 24, and a paper discharge path 65 </ b> B formed between the recording unit 24 and the paper discharge holding unit 79. .

  The curved path 65 </ b> A is a curved path extending from the vicinity of the upper end of the separation inclined plate 22 provided in the tray 20 to the recording unit 24. The curved path 65 </ b> A is generally formed in an arc shape centering on the inside of the printer unit 11. The recording paper fed from the tray 20 travels along the curved path 65A along the conveyance direction (the direction indicated by the one-dot chain line in FIG. 2) in the first conveyance direction (the direction of the arrow attached to the one-dot chain line in FIG. (Corresponding to the first transport direction of the invention) and is guided directly below the recording unit 24. The curved path 65A is defined by an outer guide member 18 and an inner guide member 19 that face each other with a predetermined interval. Note that each of the outer guide member 18 and the inner guide member 19 and guide members 82, 83, 31, and 32, which will be described later, extend in the direction perpendicular to the plane of FIG. 2 (the left-right direction 9 in FIG. 1). .

  The paper discharge path 65 </ b> B is a linear path extending from directly below the recording unit 24 to the paper discharge holding unit 79. The recording paper is guided through the paper discharge path 65B in the first transport direction. The paper discharge path 65B is formed by the recording unit 24 and the platen 42 (an example of the support member of the present invention) facing each other at a predetermined interval at the location where the recording unit 24 is provided. In the place where no is provided, the upper guide member 82 and the lower guide member 83 are opposed to each other with a predetermined interval therebetween.

  A branch position 36 exists downstream of the recording unit 24 in the first transport direction. At the time of double-sided image recording, the recording paper conveyed through the paper discharge path 65B is switched back downstream of the branch position 36 and directed to a reverse conveyance path 67 (an example of the second conveyance path of the present invention) described later. Are transported.

[Recording unit 24]
As shown in FIG. 2, the recording unit 24 is disposed above the tray 20. The recording unit 24 reciprocates in the left-right direction 9 (direction perpendicular to the paper surface in FIG. 2). A platen 42 for holding or supporting the recording paper horizontally is provided at a position below the recording unit 24 and facing the recording unit 24 across the conveyance path 65. In the process of reciprocating in the left-right direction 9, the recording unit 24 discharges ink supplied from an ink cartridge (not shown) from a nozzle 39 onto a recording sheet conveyed on the platen 42. As a result, an image is recorded on the recording paper in the conveyance path 65.

[Conveying rollers 45, 60, 62]
As shown in FIG. 2, a first transport roller 60 and a pinch roller 61 are provided between the downstream ends of the outer guide member 18 and the inner guide member 19 in the first transport direction and the recording unit 24. The pinch roller 61 is disposed below the first transport roller 60 and is pressed against the roller surface of the first transport roller 60 by an elastic member such as a spring (not shown). The first conveying roller 60 and the pinch roller 61 pinch the recording sheet conveyed through the curved path 65 </ b> A and send it onto the platen 42.

  Between the platen 42 and the upper guide member 82 and the lower guide member 83, that is, downstream of the platen 42 in the first transport direction, the second transport roller 62 (an example of the first roller of the present invention) and the spur 63. A first roller pair 59 (an example of the first roller pair of the present invention) is provided. The spur 63 is disposed above the second conveyance roller 62 and is pressed against the roller surface of the second conveyance roller 62 by an elastic member such as a spring (not shown). The second conveying roller 62 and the spur 63 pinch the recording sheet on which the image is recorded by the recording unit 24 and convey it to the downstream side in the first conveying direction.

  The transport rollers 60 and 62 are rotated by a rotational driving force transmitted from a transport motor (not shown) via a drive transmission mechanism (not shown). The drive transmission mechanism is composed of a planetary gear or the like, and rotates each of the transport rollers 60 and 62 in one rotation direction regardless of whether the transport motor is rotated in the forward rotation direction or the reverse rotation direction. Thereby, the recording sheet is conveyed in the first conveying direction.

  A second roller pair 44 (an example of the second roller pair of the present invention) composed of a third transport roller 45 (an example of the second roller of the present invention) and a spur 46 on the downstream side of the branch position 36 in the first transport direction. Is provided. The spur 46 is disposed above the third transport roller 45 and is pressed against the roller surface of the third transport roller 45 by an elastic member such as a spring (not shown).

  The third transport roller 45 is forwardly or reversely rotated by receiving a driving force in the forward / reverse rotation direction from the transport motor. For example, when single-sided recording is performed, the third transport roller 45 is rotated forward. As a result, the recording sheet is sandwiched between the third conveying roller 45 and the spur 46 and conveyed downstream in the first conveying direction, and is discharged to the discharge holding unit 79. On the other hand, when double-sided recording is performed, the rotation direction of the third conveyance roller 45 is switched from normal rotation to reverse rotation with the third conveyance roller 45 and the spur 46 sandwiching the trailing edge of the recording sheet. Thus, the recording sheet is conveyed in the direction opposite to the first conveyance direction, that is, in the second conveyance direction described later, and is conveyed toward the reverse conveyance path 67 described later by the guide plate 41 described below.

[Guide plate 41]
As shown in FIG. 2, the guide plate 41 is disposed downstream of the second transport roller 62 in the first transport direction and upstream of the branch position 36 in the first transport direction. That is, the above-described second roller pair 44 is provided downstream of the guide plate 41 in the first transport direction. The guide plate 41 includes auxiliary rollers 47 and 48, a flap 49 and a support shaft 87.

  A support shaft 87 extending in the direction perpendicular to the paper surface of FIG. The support shaft 87 is provided above the paper discharge path 65B. The flap 49 extends from the support shaft 87 to the downstream side in the first transport direction, and is rotatably supported by the support shaft 87. That is, the guide plate 41 is provided above the paper discharge path 65B. An auxiliary roller 47 and an auxiliary roller 48 are pivotally supported on the flap 49. Since the roller surfaces of the auxiliary rollers 47 and 48 are in contact with the recording surface of the recording paper, they are formed in a spur shape like the spur 63 and the spur 46.

  The flap 49 is configured to be capable of changing its posture, and has a discharge posture (a posture indicated by a one-dot chain line in FIG. 2, which corresponds to the first posture of the present invention) positioned above the lower guide member 83, and extends. The end portion 49A rotates between a reversing posture (a posture shown by a solid line in FIG. 2, corresponding to the second posture of the present invention) in which the end portion 49A enters below the branch position 36.

  The guide plate 41 holds the inverted posture by its own weight in the normal state. In this state, when the leading edge of the recording paper that has passed through the lower side of the recording unit 24 reaches the guide plate 41, the guide plate 41 is pushed onto the upper surface of the recording paper, and the posture is changed from the inverted posture to the discharging posture. In this state, the recording paper continuously conveyed is sandwiched between the second roller pair 44. Since the third transport roller 45 is rotating forward with the guide plate 41 maintained in the discharge posture, the recording paper is transported to the paper discharge tray 21 side. After that, when the rear end of the recording paper reaches a specified position upstream of the auxiliary roller 48, the guide plate 41 rotates to the reverse posture side by its own weight rather than the force by which the recording paper pushes up the guide plate 41. The power to do becomes stronger. Thereby, the posture of the guide plate 41 is changed from the discharge posture to the reverse posture. As a result, the trailing edge of the recording sheet is pressed downward by the auxiliary roller 48 and directed toward the reverse conveyance path 67.

  When single-sided recording is performed, the third conveyance roller 45 maintains normal rotation, so the second roller pair 44 discharges the recording paper to the paper discharge holding unit 79. On the other hand, when double-sided recording is performed, the third conveyance roller 45 is switched from normal rotation to reverse rotation in a state where the rear end portion of the recording sheet is directed to the reverse conveyance path 67 side. As a result, the second roller pair 44 conveys the recording paper to the reverse conveyance path 67 by switchback.

[Reverse conveying path 67]
As shown in FIG. 2, the reverse conveyance path 67 is branched from the paper discharge path 65 </ b> B at the branch position 36, passes through the lower side of the recording unit 24 and the upper side of the paper feed arm 26, and is the first conveyance than the platen 42. It joins the curved path 65A at the merging position 37 on the upstream side in the direction. The recording sheet is conveyed in the second conveyance direction (corresponding to the second conveyance direction of the present invention) on the reverse conveyance path 67. Here, the second conveyance direction is a direction from the branch position 36 toward the merging direction 37 in the reverse conveyance path 67 and indicates a direction indicated by a two-dot chain line with an arrow in FIG.

  The reverse conveyance path 67 is partitioned by a first guide member 31 and a second guide member 32 that face each other with a predetermined interval therebetween.

[Fourth transport roller 68]
As shown in FIG. 2, the reverse conveyance path 67 is provided with a fourth conveyance roller 68 and a driven roller 69. The driven roller 69 is disposed below the recording unit 24 and above the fourth conveyance roller 68.

  The fourth transport roller 68 is disposed in the reverse transport path 67 at a position below and following the driven roller 69. The fourth transport roller 68 is forwardly or reversely rotated by receiving a driving force in the forward / reverse rotation direction from the transport motor. In the present embodiment, the conveyance roller pair 70 has a reverse conveyance path by sandwiching a recording sheet between the fourth conveyance roller 68 and the driven roller 69 when the conveyance motor is rotated in the reverse direction. The recording sheet conveyed to 67 is conveyed in the second conveyance direction.

[First frame and second frame]
As shown in FIG. 3, the printer unit 11 includes a metal first frame 51 (an example of the first frame of the present invention), a second frame 52 (an example of the second frame of the present invention), and the like. It has.

  The first frame 51 includes a bottom plate 53 (an example of the bottom plate of the present invention) and a pair of side plates 56 (an example of the side plate of the present invention).

  The bottom plate 53 has a generally rectangular thin plate shape extending in the front-rear direction 8 and the left-right direction 9 and is provided above the paper feed arm 26 (see FIG. 2). A support shaft 28 of the paper feed arm 26 is rotatably supported on the bottom plate 53. For this purpose, for example, both ends of the bottom plate 53 in the left-right direction 9 are bent downward, and an opening (not shown) that supports the support shaft 28 in a rotatable manner may be provided in the bent portion.

  The pair of side plates 56 has a generally rectangular thin plate shape extending in the up-down direction 7 and the front-rear direction 8, and is erected upward from both ends in the left-right direction 9 (corresponding to the width direction of the present invention) of the bottom plate 53. The side plate 56 is provided with a first notch 71 and a second notch 72 downward from the upper end of the side plate 56. The support shaft 57 of the second transport roller 62 is engaged with the first notch 71, and the support shaft 58 of the third transport roller 45 is engaged with the second notch 72.

  The second frame 52 has a generally rectangular thin plate shape extending in the front-rear direction 8 and the left-right direction 9. The second frame 52 is fixed to a pair of side plates 56 at both ends in the left-right direction 9 above the bottom plate 53 and below the platen 42. Further, as will be described later, the second frame 52 supports a movable member 90 described below.

[Movable member 90]
As shown in FIG. 4, the movable member 90 has a generally thin plate shape. The movable member 90 is arranged in the multifunction machine 10 such that the distal end portion 91 is on the rear side, the operation portion 92 described later is on the front side, and the convex portion 93 described later is on the lower side. Hereinafter, in the state in which the movable member 90 is arranged as described above, the up-down direction 7, the front-rear direction 8, and the left-right direction 9 are defined.

  The movable member 90 is disposed outside the both ends of the conveyance path 65 in the left-right direction 9. That is, two movable members 90 are provided in the multifunction machine 10. In order to realize the arrangement, for example, as shown in FIG. 3, the movable member 90 is arranged at a position adjacent to the left side of the right side plate 56 and a position adjacent to the right side of the left side plate 56. . FIG. 4 shows the movable member 90 disposed at a position adjacent to the right side of the left side plate 56. The movable member 90 is provided above the bottom plate 53 and below the platen 42.

  As shown in FIG. 5, the distal end portion 91 of the movable member 90 is provided above the second frame 52 and is supported by the second frame 52. Specifically, the second frame 52 is bent upward at both ends in the left-right direction 9 and at the front end in the front-rear direction 8, and the opening 13 is provided in the bent portion. The tip 91 of the movable member 90 passes through the opening 13.

  Further, in the present embodiment, portions other than the distal end portion 91 of the movable member 90 are supported by the bottom plate 53 of the first frame 51. As described above, the movable member 90 is only supported by the first frame 51 and the second frame 52 and is not fixed. Further, as described above, since the distal end portion 91 of the movable member 90 penetrates the opening 13, the movable member 90 cannot slide in the left-right direction 9. As described above, the movable member 90 is supported by the first frame 51 and the second frame 52 while being along the upper surfaces of the first frame 51 and the second frame 52, that is, the front-rear direction 8 (corresponding to the horizontal direction of the present invention). Along this, the first position (corresponding to the first position of the present invention) and the second position (corresponding to the second position of the present invention) are slidable.

  Here, the first position is a position (position shown in FIGS. 7A and 8A) in a state in which the movable member 90 is arranged at the rearmost in a range in which the movable member 90 is slidable. is there. The second position is a position (position shown in FIGS. 7B and 8B) in a state in which the movable member 90 is disposed in the foremost part of the range in which the movable member 90 is slidable. .

  In the present embodiment, the two movable members 90 are not connected to each other and can be slid individually. However, the two movable members 90 may be slidable together. For example, when the two movable members 90 are coupled by a coupling member (not shown) extending in the left-right direction 9, the two movable members 90 can be slid together.

  As shown in FIG. 4, on the upper surface of the movable member 90, a first guide surface 93 (an example of the first guide surface of the present invention) and a second guide formed forward of the first guide surface 93. A surface 94 (an example of the second guide surface of the present invention) and a fourth guide surface 96 (an example of the fourth guide surface of the present invention) formed in front of the second guide surface 94 are formed. . In the front-rear direction 8 of the movable member 90, a recess 97 is formed between the second guide surface 94 and the fourth guide surface 96. Of the two movable members 90 arranged in the multifunction machine 10, the concave portion 97 of the left movable member 90 is a concave from the right surface of the movable member 90 to the left, and the concave portion 97 of the right movable member 90 is the movable member 90. It is a dent facing right from the left side of A third guide surface 95 (an example of the third guide surface of the present invention) is formed on the bottom surface of the recess 97.

  In this embodiment, the concave portion 97 is formed in the movable member 90, but an opening may be formed in the movable member 90 instead of the concave portion 97.

  The first guide surface 93 includes a horizontal plane 101 and an inclined plane 102 that is continuous with the horizontal plane 101 on the rear side and is inclined obliquely downward and rearward. The first guide surface 93 is in contact with the lower surface of the platen 42 and can support the platen 42.

  The second guide surface 94 includes a horizontal plane 103, an inclined plane 104 that is continuous with the horizontal plane 103 on the rear side and that is inclined obliquely rearward and a horizontal plane 105 that is continuous with the inclined plane 104 on the rear side. Has been. The second guide surface 94 is in contact with the support shaft 57 of the second transport roller 62 and can support the second transport roller 62.

  The fourth guide surface 96 includes a horizontal surface 109, an inclined surface 110 that is continuous with the horizontal surface 109 on the rear side and that is inclined obliquely downward to the rear, and a horizontal surface 111 that is continuous with the inclined surface 110 on the rear side. Has been. The fourth guide surface 96 is in contact with the support shaft 58 of the third transport roller 45 and can support the third transport roller 45.

  The third guide surface 95 includes a horizontal surface 106, an inclined surface 107 that is continuous with the horizontal surface 106 on the rear side and inclined rearward and upward, and a horizontal surface 108 that is continuous with the inclined surface 107 on the rear side. Has been. The third guide surface 95 is in contact with the support shaft 87 of the guide plate 41 and can support the guide plate 41.

  The horizontal planes 101, 103, 105, 106, 108, 109, and 111 correspond to the horizontal plane of the present invention, and the inclined surfaces 102, 104, 107, and 110 correspond to the inclined plane of the present invention.

[Operation unit 92]
As shown in FIG. 4, in the movable member 90, an operation portion 92 (an operation portion according to the present invention) is provided at an end portion (corresponding to an end portion on one side of the present invention) opposite to the distal end portion 91 in the front-rear direction 8. Example) is formed. The operation unit 92 includes a notch 112 and a protrusion 113.

  This will be described in detail below. The movable member 90 has a length in the vertical direction 7 that is longer at the end opposite to the distal end portion 91. In the movable member 90, a notch 112 is formed upward from the lower surface of the movable member 90 at a portion where the length in the vertical direction 7 is long. The length of the notch 112 in the front-rear direction 8 is a length that allows the user of the multifunction machine 10 to insert a finger. By forming the notch 112, a protrusion 113 having a shape in which the L-shape is reversed in the vertical direction 7 is formed in a portion where the length in the vertical direction 7 is long. For example, the user of the multifunction machine 10 can slide the movable member 90 in the front-rear direction 8 by inserting a finger into the notch 112 and gripping the protrusion 113.

[Convex portion 98 and rear surface 99]
As shown in FIG. 4, in the movable member 90, a convex portion 98 (an example of the convex portion of the present invention) is formed between the front end portion 91 and the operation portion 92 in the front-rear direction 8. The convex portion 98 includes a lower protrusion 114 and a lateral protrusion 115.

  This will be described in detail below. A protrusion extending downward, that is, a lower protrusion 114 is formed between the front end 91 of the movable member 90 and the front-rear direction 8 of the operation section 92. The lower protrusion 114 is formed with a protrusion extending from the lower protrusion 114 in the left-right direction 9, that is, a lateral protrusion 115. As described above, two movable members 90 are provided in the multifunction machine 10, but the lower protrusion 114 extends rightward in the left movable member 90 and extends leftward in the right movable member 90. Yes. The front surface of the lateral protrusion 115 (hereinafter referred to as the front surface 100) abuts on the rear surface 99 (an example of the abutting portion of the present invention) of the convex portion 116 formed on the tray 20 described below. That is, the lateral protrusion 115 is formed at a position where the front surface 100 can contact the rear surface 99 of the convex portion 116 of the tray 20 in the vertical direction 7 and the horizontal direction 9.

  As shown in FIG. 6, a convex portion 116 extending upward is provided in the vicinity of the front end of the tray 20 in the direction of insertion into the multifunction machine 10. The position in the vertical direction 7 of the convex portion 116 extending upward is the same as the position in the vertical direction 7 of the lateral protrusion 115 of the movable member 90. Further, the convex portion 116 is provided at a position corresponding to at least the lateral protrusion 115 in the left-right direction 9. As described above, the rear surface 99 of the convex portion 116 of the tray 20 can come into contact with the front surface 100 of the lateral protrusion 115 of the movable member 90.

[Sliding of movable member 90]
As described above, the movable member 90 is configured to be slidable between the first position and the second position along the front-rear direction 8. Further, as described above, the tray 20 can be inserted and removed in the front-rear direction 8. That is, the sliding direction of the movable member 90 is the same as the mounting and removal directions of the tray 20.

  As shown in FIGS. 7A and 8A, when the movable member 90 is located at the first position, the platen 42 is supported by the horizontal plane 101 of the first guide surface 93, and the second The support shaft 57 of the transport roller 62 is supported on the horizontal surface 103 of the second guide surface 94, the support shaft 58 of the third transport roller 45 is supported on the horizontal surface 109 of the fourth guide surface 96, and the guide plate 41 is The third guide surface 95 is supported on the horizontal surface 106.

  In the present embodiment, the support shaft 58 of the third transport roller 45 is connected to the fourth guide surface 96 (the horizontal surfaces 109 and 111 and the inclined surface 110) via the coil spring 117 supported by the fourth guide surface 96. It abuts against the opposing surface 118. That is, the support shaft 58 of the third transport roller 45 is supported on the fourth guide surface 96 via the coil spring 117.

  As shown in FIG. 6, when the movable member 90 is located at the first position and the tray 20 is mounted on the multifunction machine 10, the front surface 100 of the lateral protrusion 115 of the movable member 90 is the rear surface of the tray 20. 99. As a result, sliding of the movable member 90 from the first position to the second position is impeded by the rear surface 99 of the tray 20 and is impossible.

  On the other hand, when the tray 20 is removed from the multifunction machine 10, the slide of the movable member 90 is not hindered by the tray 20. Further, the operation unit 92 of the movable member 90 can be gripped through the opening 13. That is, the operation unit 92 can be operated.

  When the operation unit 92 is gripped by the user of the multifunction machine 10 with the tray 20 removed, the movable member 90 is slid forward from the first position to the second position. As a result, the supported surfaces of the platen 42, the second transport roller 62, the third transport roller 45, and the guide plate 41 are changed.

  That is, as shown in FIG. 7B and FIG. 8B, the platen 42 is moved from the state supported by the horizontal surface 101 to the upper surface of the second frame 52 through the state supported by the inclined surface 102. It will be in the state supported by.

  The second transport roller 62 is supported by the horizontal surface 105 through the state supported by the inclined surface 104 from the state supported by the horizontal surface 103.

  The third conveyance roller 45 is in a state of being supported by the horizontal surface 111 from a state of being supported by the horizontal surface 109 through a state of being supported by the inclined surface 110. As described above, the third transport roller 45 is not directly supported by the horizontal surfaces 109 and 111 and the inclined surface 110, but is supported by the horizontal surfaces 109 and 111 and the inclined surface 110 via the coil spring 117. . As a result, the position where the third transport roller 45 and the surface 118 come into contact changes, so that the surface supporting the third transport roller 45 changes from the horizontal surface 109 to the horizontal surface 111 via the inclined surface 110.

  The guide plate 41 is supported by the horizontal surface 108 from the state supported by the horizontal surface 106 through the state supported by the inclined surface 107.

  As described above, when the movable member 90 is slid from the first position to the second position, the first guide surface 92 guides the platen 42 downward, and the second guide surface 94 guides the second transport roller 62 downward. The fourth guide surface 96 guides the third transport roller 45 downward, and the third guide surface 95 guides the guide plate 41 upward. As a result, the recording paper jammed in the conveyance path 65 can be easily taken out.

  When the tray 20 is inserted into the multi-function peripheral 10 with the movable member 90 positioned at the second position, the rear surface 99 of the tray 20 comes into contact with the front surface 100 of the lateral protrusion 115 of the movable member 90. If the tray 20 is further inserted in this state, the movable member 90 is slid from the second position to the first position by being pushed by the tray 20. As a result, the supported surfaces of the platen 42, the second transport roller 62, the third transport roller 45, and the guide plate 41 change in the opposite manner as described above. As a result, the first guide surface 92 guides the platen 42 upward, the second guide surface 94 guides the second transport roller 62 upward, and the fourth guide surface 96 guides the third transport roller 45 upward. The third guide surface 95 guides the guide plate 41 downward. As a result, an image can be recorded on the recording paper.

[Effect of the first embodiment]
In the present embodiment, the user can hold the operation unit 92 and slide the movable member 90 from the first position to the second position. Accordingly, the platen 42, the second transport roller 62, and the third transport roller 45 provided below the transport path 65 are guided downward. Further, a guide plate 41 provided above the transport path 65 is guided upward. As a result, the space constituting the transport path 65 can be increased. Thereby, when the recording paper is jammed in the conveyance path 65, the recording paper can be easily taken out.

  In a state where the tray 20 is removed from the multifunction machine 10, the recording paper placed on the tray 20 cannot be fed to the recording unit 24, so that image recording on the recording paper cannot be performed. On the other hand, in a state in which the tray 20 is mounted on the multifunction machine 10, image recording on a recording sheet can be executed. In the present embodiment, since the tray 20 is provided with the rear surface 99, the user slides the movable member 90 from the first position to the second position in a state where the tray 20 is mounted on the multifunction machine 10. I can't. As a result, in a state where the tray 20 is mounted on the multifunction device 10, the movable member 90 is maintained at the first position, which is a position when an image is recorded on the recording paper, and image recording on the recording paper is not possible. It is not slid to the second possible position. Therefore, it is possible to prevent the image recording on the recording paper from being erroneously performed in the state where the movable member 90 is in the second position.

  In order to maintain good quality of the image recorded on the recording paper supported by the platen 42 by the recording unit 24, the gap between the platen 42 and the recording unit 24 needs to be maintained constant. However, if the movable member 90 is slidable, the position of the platen 42 supported by the movable member 90 cannot be completely fixed. That is, it is difficult to keep the gap between the platen 42 and the recording unit 24 constant. However, in the present embodiment, the movable member 90 is supported by the second frame 52 fixed to the main body of the multifunction machine 10. Thereby, the position of the movable member 90 can be fixed. Therefore, the position of the platen 42 supported by the movable member 90 can also be fixed. Therefore, the gap between the platen 42 and the recording unit 24 can be kept constant.

  In the present embodiment, when the removed tray 20 is mounted on the multifunction machine 10, the posture of the movable member 90 is changed from the second position to the first position. That is, the user can return the conveyance path 65 to a state in which the recording paper can be guided only by attaching the tray 20 to the multifunction machine 10.

  When the movable member 90 is provided in a pair in the left-right direction 9, a separate member for connecting the pair of movable members 90 is required to enable the pair of movable members 90 to slide together. In this embodiment, it is not necessary to add such a member.

  In the present embodiment, each of the movable members 90 can be slid with less force than connecting the pair of movable members 90 to each other and sliding them together. In addition, when a piece of recording paper remains on only one side in the left-right direction 9 in the conveyance path 65, only one of the movable members 90 is slid so as to slide the platen 42, the second conveyance roller 62, and the third conveyance roller 45. In addition, only one of the guide plates 41 in the left-right direction 9 can be moved up and down. That is, the platen 42, the second transport roller 62, the third transport roller 45, and the guide plate 41 can be inclined in the left-right direction 9. Thereby, the conveyance path 65 can be widened only on the one side. as a result. The piece of recording paper can be easily taken out.

[Modification of First Embodiment]
In the first embodiment described above, the case where the multifunction machine 10 has a double-sided image recording function has been described. However, the present invention is also applicable to a multifunction machine 10 having only a single-sided image recording function. . In this case, the multifunction machine 10 does not include the guide plate 41 and the reverse conveyance path 68 for realizing double-sided image recording. Therefore, the movable member 90 in the modification may not include the recess 97 and the third guide surface 95.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described. In the printer unit 120 according to the present embodiment, a flap 121 (FIGS. 9 and 10) is newly used to partition the conveyance path 65. That is, the conveyance path 65 is defined by the guide members 82, 83, 31, 32 and the flap 121 described above. Further, a flap support portion 123 that supports the flap 121 from below is formed on the tray 122 (FIGS. 9 and 11). Other configurations of the printer unit 120 are the same as those of the printer unit 11 according to the first embodiment described above unless otherwise specified.

[Flap 121]
The flap 121 (an example of the flap member of the present invention) shown in FIGS. 9 and 10 has a generally flat plate shape with the first surface 124 and the second surface 125 as front and back surfaces. The flap 121 is attached to the support shaft 58 via an engaging portion 127 formed on one end side of the flat plate shape. That is, the flap 121 is attached coaxially with the third transport roller 45. The flap 121 is rotatable within a predetermined range around the support shaft 58. In FIG. 9, the flaps 121 at different positions are indicated by a solid line and a broken line. Each position of the flap 121 will be described later.

  As shown in FIG. 10, the engaging portion 127 (an example of the engaging portion of the present invention) is a groove formed in a C shape along the longitudinal direction of the flap 121 (direction perpendicular to the paper surface). The flap 121 is attached to the support shaft 58 by holding the support shaft 58 on the engaging portion 127. Specifically, the flap 121 has an opening 128 (see FIG. 10, an example of the opening of the present invention) of the engaging portion 127 in the third position (an example of the third position of the present invention) indicated by a solid line in FIG. 9. ) Is attached to the support shaft 58 so as to face downward.

  Claws 131 (an example of the claw of the present invention) protrude from edges 129 and 190 of the periphery of the opening 128 that face each other. The claws 131 protrude toward the center of the opening 128 so as to face each other. Although only a pair of claws 131 is shown in FIG. 10, a plurality of pairs of claws 131 may protrude along the axial direction of the support shaft 58. The distance between the tips of the pair of claws 131 is slightly shorter than the outer diameter of the support shaft 58. Therefore, the support shaft 58 is held inside the engaging portion 127 by the claw 131. The claw 131 plays a role of preventing the support shaft 58 from being detached from the engaging portion 127 when the tray 122 is mounted on the multifunction machine 10. The operation of the claw 131 when the tray 122 is mounted will be described later.

  The flap 121 is attached to the support shaft 58 by the following method, for example. First, the support shaft 58 is applied to the opening 128 and pushed between the pair of claws 131. Since the distance between the tips of the pair of claws 131 is shorter than the outer diameter of the support shaft 58, the flap 121 is elastically deformed in a direction in which the claws 131 are separated from each other. When the support shaft 58 passes between the claws 131, the shape of the flap 121 is elastically restored. Thus, the support shaft 58 is held inside the engaging portion 127.

  The flap 121 attached to the support shaft 58 can rotate in the first direction 141 (an example of the first direction of the present invention) shown in FIG. 9 from the third position described above. Specifically, as shown in FIG. 12, the flap 121 can rotate in the first direction 141 until the tip 126 is positioned above the support shaft 58. Similarly, the flap 121 returns to the third position by rotating in the second direction 142 shown in FIG. 9 (an example of the second direction of the present invention).

[Tray 122]
As shown in FIGS. 9 and 11, the tray 122 (an example of the tray of the present invention) is formed with a flap support part 123 (an example of the flap support part of the present invention) that protrudes upward. . The flap support portion 123 is a ridge along the left-right direction 9. The flap support part 123 is located above the placement part 132 on which the recording paper is placed. Further, the flap support portion 123 is located slightly rearward from the center in the front-rear direction 8.

  In a state where the tray 122 is mounted on the multifunction machine 10, the flap support portion 123 is positioned directly below the flap 121. As indicated by a solid line in FIG. 9, the flap 121 is supported from below by the flap support portion 123 and is maintained at the third position. On the other hand, in a state where the tray 122 is not attached to the multifunction machine 10, the flap 121 is not supported from below. Therefore, as indicated by a broken line in FIG. 9, the flap 121 is in a state where the tip 126 is suspended downward by its own weight.

[Operation of movable member 90 and flap 121]
The operation of the movable member 90 and the flap 121 will be described below. As indicated by a solid line in FIG. 10, in a state where the flap 121 is maintained at the third position, the first surface 124 is directed upward. The first surface 124 is substantially gently continuous with the upper surface of the first guide member 31 along the recording sheet conveyance direction. That is, a part of the lower surface that defines the transport path 65 is formed by the first surface 124 of the flap 121 and the upper surface of the first guide member 31.

  As described above, when the tray 122 is removed from the multifunction machine 10, the flap 121, which has lost its support, rotates in the first direction 141 by its own weight, and the leading end 126 hangs downward. In this way, a part of the lower surface that defines the transport path 65 is opened.

  After removing the tray 122, the user can slide the movable member 90 forward from the first position to the second position. The operation of each unit accompanying the sliding of the movable member 90 is the same as that of the printer unit 11 according to the first embodiment described above. That is, the first guide surface 92 guides the platen 42 downward, the second guide surface 94 guides the second transport roller 62 downward, the fourth guide surface 96 guides the third transport roller 45 downward, The third guide surface 95 guides the guide plate 41 upward. As a result, the recording paper jammed in the conveyance path 65 can be easily taken out.

  The user rotates the flap 121 in the first direction 141 until the tip 126 is positioned above the support shaft 58. Thus, as shown in FIG. 12, a passage 133 is formed from the opening 13 (FIG. 1) via the lower part of the flap 121 to the conveyance path 65. The user can put his hand into the passage 133 from the opening 13 and take out the recording paper jammed in the conveyance path 65.

  When the movable member 90 is in the second position, the restraining portion 134 (an example of the restraining portion of the present invention, see FIG. 4) that is a part of the above-described convex portion 98 enters the rotation locus of the flap 121. Yes. In this state, a part of the first surface 124 of the flap 121 abuts against the restraining portion 134, so that the flap 121 cannot rotate in the second direction 142 beyond a predetermined position. That is, the flap 121 does not rotate to the third position and the passage 133 is not closed.

  After taking out the recording paper from the conveyance path 65, the user attaches the tray 122 to the multifunction machine 10 so that the image can be recorded again. The operation of each unit when the tray 122 is attached to the multifunction machine 10 will be described below.

  When the tray 122 is inserted, the flap support portion 123 first comes into contact with the second surface 125 of the flap 121. When the flap support part 123 presses the flap 121, the flap 121 rotates in the second direction 142. When the flap 121 is rotated to the predetermined position described above, the restraining portion 134 of the movable member 90 comes into contact with the first surface 124 of the flap 121.

  The relationship between the flap 121, the tray 122, and the movable member 90 at this time is shown in FIG. The flap support portion 123 is in contact with the second surface 125 of the flap 121 at point A. The restraining portion 134 is in contact with the first surface 124 of the flap 121 at point B.

  When the tray 122 is further inserted, the flap support part 123 of the tray 122 presses the flap 121, and the flap 121 rotates to the third position. At the same time, the flap 121 presses the stop portion 134, and the movable member 90 slides to the first position side. The contact between the first surface 124 and the restraining portion 134 is released until the flap 121 rotates to the third position. Therefore, the movable member 90 pressed by the flap 121 does not slide to the first position and stops ahead of the first position.

  After the contact between the first surface 124 and the restraining portion 134 is released, the rear surface 99 of the tray 122 contacts the front surface 100 of the movable member 90. When the tray 20 is further inserted, the movable member 90 is pushed by the tray 122 and slides to the first position.

  The operation of each unit accompanying the sliding of the movable member 90 is the same as that of the printer unit 11 according to the first embodiment described above. That is, the first guide surface 92 guides the platen 42 upward, the second guide surface 94 guides the second transport roller 62 upward, the fourth guide surface 96 guides the third transport roller 45 upward, The third guide surface 95 guides the guide plate 41 downward. As a result, an image can be recorded on the recording paper.

  The flap support part 123 of the tray 122 is located above the restraining part 134 of the movable member 90. Therefore, point A in FIG. 13 is located above point B. When the tray 122 is mounted, the flap 121 receives a backward force in the front-rear direction 8 at point A, and receives a forward force in the front-rear direction 8 at point B. By these two forces, a moment for rotating the flap 121 in the third direction 143 is generated with the point B as a fulcrum. This moment acts in a direction to remove the engaging portion 127 from the support shaft 58.

  At this time, although not shown in the drawing, the claw 131 formed on the edge 130 is in a state of projecting generally upward from below. The claw 131 is in contact with a part of the lower half of the support shaft 58. The claw 131 is engaged with the support shaft 58 to prevent the engaging portion 127 from being detached from the support shaft 58.

[Effects of Second Embodiment]
In the present embodiment, the same effects as those of the first embodiment described above can be achieved. In addition, the flap 121 rotates to form a passage 133 that leads from the outside to the conveyance path 65, so that it becomes easier to take out the recording paper jammed in the conveyance path 65.

  Further, since the flap 121 can rotate in the first direction 141 until the tip 126 reaches the upper side of the support shaft 58, the user can completely release the passage 133. That is, it becomes easier to access the first transport path from the outside.

  Further, when the movable member 90 is in the second position, the flap 121 is prevented from rotating in the second direction, so that a user who tries to access the conveyance path 65 by groping obstructs the passage 133 without noticing. This is avoided. Further, when the flap 121 comes into contact with the user's hand or arm, the user can easily feel the resistance due to the flap 121. That is, there is an effect of making the user aware of the presence of the flap 121 and encouraging the user to rotate the flap 121 in the first direction 141.

  Further, even when a force is applied to remove the flap 121 from the support shaft 58 when the tray 122 is mounted, the claws 131 are fitted with the support shaft 58, so that the flap 121 is prevented from being detached from the support shaft 58.

[Modification of Second Embodiment]
In the above-described second embodiment, the pair of claws 131 protrude from the edges 129 and 130, respectively, but the claws 131 may protrude only from the edge 130. Even in such a configuration, since the claw 131 is fitted to the support shaft 58, the engagement portion 127 can be prevented from being detached from the support shaft 58.

  The second embodiment can also be applied to the multifunction machine 10 having only a single-sided image recording function, like the first embodiment described above.

10: MFP 20: tray 24: recording unit 25: feeding roller 26: feeding arm 41: guide plate 42: platen 44: second roller pair 51: first frame 52: second frame 59: first roller pair 65: transport path 67: reverse transport path 90: movable member 92: operation unit 93: first guide surface 94: second guide surface 95: third guide surface 96: fourth guide surface 98: convex portion 99: rear surface 121: Flap 122: Tray 123: Flap support part 127: Engagement part 128: Opening part 131: Claw 134: Stop part 141: First direction

Claims (12)

A first conveyance path for guiding the sheet along the first conveyance direction;
A recording unit that is provided above the first conveyance path and records an image on a sheet;
A support member that is provided below the first conveyance path so as to face the recording unit, and that supports the sheet;
A first roller pair that is provided downstream of the support member in the first conveyance direction, and conveys the sheet in the first conveyance direction;
A movable member slidably provided along the horizontal direction below the support member;
A tray on which a sheet can be placed and which can be attached to and removed from the apparatus;
A feeding roller for supplying the sheet placed on the tray to the first conveying path;
An arm provided above the tray and provided with the feeding roller on the tip side;
A bottom plate provided above the arm, the arm being attached to be rotatable about a base end side, and the width direction perpendicular to the first transport direction and along the sheet support surface by the support member; A first frame comprising a pair of side plates erected upward from both ends of the bottom plate;
A second frame fixed at both ends in the width direction by the pair of side plates,
The movable member is
A first guide surface configured by a horizontal surface and an inclined surface capable of supporting the support member in a first position, and guiding the support member downward by sliding from the first position to a second position;
It is constituted by a horizontal surface and an inclined surface capable of supporting the lower first roller among the rollers constituting the first roller pair at the first position, and by sliding from the first position to the second position, A second guide surface for guiding the first roller downward;
An operation unit that is provided at one end in the sliding direction and is gripped for sliding;
The movable member is an image recording apparatus supported by the second frame. A first conveyance path for guiding the sheet along the first conveyance direction;
A recording unit that is provided above the first conveyance path and records an image on a sheet;
A support member that is provided below the first conveyance path so as to face the recording unit, and that supports the sheet;
A first roller pair that is provided downstream of the support member in the first conveyance direction, and conveys the sheet in the first conveyance direction;
A movable member slidably provided along the horizontal direction below the support member;
A tray on which a sheet can be placed and which can be attached to and removed from the apparatus,
The movable member is
A first guide surface configured by a horizontal surface and an inclined surface capable of supporting the support member in a first position, and guiding the support member downward by sliding from the first position to a second position;
It is constituted by a horizontal surface and an inclined surface capable of supporting the lower first roller among the rollers constituting the first roller pair at the first position, and by sliding from the first position to the second position, A second guide surface for guiding the first roller downward;
A convex portion protruding in a direction crossing the first transport direction;
An operation unit that is provided at one end in the sliding direction and is gripped for sliding;
The image recording apparatus includes an abutting portion that abuts against the convex portion in a state where the tray is mounted on the tray and stops sliding of the movable member from the first position to the second position. A feeding roller for supplying the sheet placed on the tray to the first conveying path;
An arm provided above the tray and provided with the feeding roller on the tip side;
A bottom plate provided above the arm, the arm being attached to be rotatable about a base end side, and the width direction perpendicular to the first transport direction and along the sheet support surface by the support member; A first frame comprising a pair of side plates erected upward from both ends of the bottom plate;
A second frame having both ends in the width direction fixed by the pair of side plates,
The image recording apparatus according to claim 2, wherein the movable member is supported by the second frame. The movable member includes a convex portion protruding in a direction intersecting the first transport direction,
The tray includes an abutting portion that abuts on the convex portion in a state of being mounted on the apparatus and stops sliding of the movable member from the first position to the second position;
The sliding direction of the movable member is the same as the mounting and withdrawal directions of the tray,
The image recording apparatus according to claim 1, wherein the movable member is slid from the second position to the first position by being pushed by the tray in a process in which the tray is attached to the apparatus. The sliding direction of the movable member is the same as the mounting and withdrawal directions of the tray,
4. The image recording apparatus according to claim 2, wherein the movable member is slid from the second position to the first position by being pushed by the tray in a process in which the tray is attached to the apparatus. 5. A second conveying path for guiding the sheet from the downstream side in the first conveying direction from the first roller pair to the upstream side in the first conveying direction from the support member;
A first posture that is provided downstream from the first roller pair in the first conveying direction and above the first conveying path, and guides the sheet conveyed in the first conveying direction to the downstream side; and A guide plate capable of changing posture between a second posture for guiding a sheet conveyed in a second conveyance direction opposite to the first conveyance direction to the second conveyance path;
A second roller pair that is provided downstream from the guide plate in the first conveyance direction and conveys the sheet in the first conveyance direction or the second conveyance direction by rotating forward or reverse. Prepared,
The movable member is
A third guide surface configured by a horizontal surface and an inclined surface capable of supporting the guide plate at the first position, and guiding the guide plate upward by sliding from the first position to the second position;
It is constituted by a horizontal surface and an inclined surface capable of supporting the lower second roller among the rollers constituting the second roller pair at the first position, and by sliding from the first position to the second position, The image recording apparatus according to claim 1, further comprising a fourth guide surface that guides the second roller downward. A second roller pair that is provided downstream of the first roller pair in the first conveying direction and conveys the sheet in at least the first conveying direction;
A flap member rotatably supported on the shaft of the lower second roller among the rollers constituting the second roller pair,
The tray has a flap support portion that supports the flap member from below when mounted on the apparatus.
The flap member forms a part of a lower surface that defines the first conveyance path at a third position supported by the flap support part, and the first conveyance is not supported by the flap support part. The image recording apparatus according to claim 1, wherein the image recording apparatus is rotatable in a first direction that opens the path.   8. The image according to claim 7, wherein the flap member is rotatable in the first direction until the leading end of the flap member reaches above the axis of the second roller in a state where the flap member is not supported by the flap support portion. 9. Recording device. The movable member deviates from the rotation trajectory of the flap member when the movable member is in the first position, and is positioned in the rotation trajectory of the flap member when the movable member is in the second position. Have a stop to
The said stop part contacts the said flap member in the said rotation locus | trajectory, and stops that the said flap member rotates to the 2nd direction opposite to the said 1st direction. Image recording device. The flap member is
A C-shaped engaging portion that engages with the shaft of the second roller;
Provided at the opening peripheral edge of the engaging portion, and having a claw protruding upward from below in a state where the flap member is in contact with the restraining portion,
The restraining portion is disposed below the flap support portion,
The image recording apparatus according to claim 9, wherein the opening of the engaging portion faces downward when the flap member is in the third position. A second conveying path for guiding the sheet from the downstream side in the first conveying direction from the first roller pair to the upstream side in the first conveying direction from the support member;
A first posture that is provided downstream from the first roller pair in the first conveying direction and above the first conveying path, and guides the sheet conveyed in the first conveying direction to the downstream side; and A guide plate capable of changing posture between a second posture for guiding a sheet conveyed in a second conveyance direction opposite to the first conveyance direction to the second conveyance path;
The second roller pair is provided downstream of the guide plate in the first conveyance direction, and conveys the sheet in the first conveyance direction or the second conveyance direction by rotating forward or reverse.
The movable member is
A third guide surface configured by a horizontal surface and an inclined surface capable of supporting the guide plate at the first position, and guiding the guide plate upward by sliding from the first position to the second position;
It is constituted by a horizontal surface and an inclined surface capable of supporting the lower second roller among the rollers constituting the second roller pair at the first position, and by sliding from the first position to the second position, The image recording apparatus according to claim 7, further comprising a fourth guide surface that guides the second roller downward. The movable member is provided outside the both ends of the first transport path in the width direction perpendicular to the first transport direction and along the sheet support surface by the support member,
The image recording apparatus according to claim 1, wherein each of the movable members is individually slidable.

Images