JP2007203707A - Recording apparatus and liquid jetting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To maintain an appropriate state of a guide member with a cover member open in a recording apparatus including the cover member which causes a part of a paper transporting path to be exposed for treating paper jam and a guide member provided so that it can be turned projected state or non-projected in the cover member. <P>SOLUTION: A movable guide 67 is provided so that it can be in a projected state or a non-projected state with respect to a fixed guide 66 and a curved reverse feeding path. A lower rear cover 63 forms a closed state with an opening for treating paper jam covered and an open state that the opening is open. Along with the operation of the lower rear cover 63 for canceling a locked state, the movable guide 67 attains the non-projected state. When the lower rear cover 63 attains the open state, the non-projecting state of the movable guide 67 is always maintained by a guide member lock means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a recording apparatus and a liquid ejecting apparatus typified by a facsimile or a printer.
Here, the liquid ejecting apparatus uses an ink jet recording head, and is not limited to a recording apparatus such as a printer, a copying machine, and a facsimile machine that discharges ink from the recording head to perform recording on a recording medium. And a device that ejects a liquid corresponding to the application from a liquid ejecting head corresponding to the ink jet recording head to an ejected medium corresponding to a recording medium, and adheres the liquid to the ejected medium. .
In addition to the recording head, as a liquid ejecting head, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, and an electrode material (conductive paste) used for forming an electrode such as an organic EL display or a surface emitting display (FED) Examples thereof include an ejection head, a bioorganic matter ejection head used for biochip production, and a sample ejection head as a precision pipette.

Some recording apparatuses typified by facsimiles, printers, and the like include a cover member that exposes a part of the sheet conveyance path in order to remove the sheet when a paper jam occurs inside the apparatus.
In particular, in a printer having a substantially U-shaped transport path (curved reversal path), paper jams are likely to occur in the substantially U-shaped transport path, and therefore, outside the substantially U-shaped transport path, The cover member as described above may be provided to be freely opened and closed (see, for example, Patent Document 1).

Japanese Patent No. 2529261

  By the way, in a recording apparatus provided with a curved reversing path, a guide surface of a guide member that is provided outside the curved reversing path and guides the paper to the downstream side extends as far as possible from the end position of the curved reversing path. It is desirable. As a result, the paper transport path can be seamlessly formed from the curved reversal portion of the paper to a stable area further downstream, and the possibility of paper jam can be further reduced.

  Here, in order to expose a part of the paper transport path for paper jam processing, it may be necessary to remove the guide member together with the cover member. However, if the guide member is extended to the downstream side as described above, the guide member becomes larger. For example, when the cover member is provided rotatably on the main body of the recording apparatus, the cover member is opened. In this case, the guide member rotates in a state of being greatly protruded, so that it easily interferes with other components. To avoid this, the layout of the apparatus is restricted, the degree of freedom of design is reduced, and as a result, the apparatus There is a risk of increasing the size.

  In order to avoid such a problem, it is necessary to displace the guide member on the cover member so that the guide member can be switched between a state in which the guide member protrudes largely with respect to the curve reversal path and a state in which the guide member protrudes small. It is valid. That is, when the cover member is closed, the guide member is protruded greatly from the cover member toward the inside of the apparatus, that is, the curve reversal path (projection state), and the guide surface of the guide member is extended to the downstream side. When opening the door, it is effective to make the guide member project in a small projecting state (non-projecting state), that is, to reduce the size of the entire cover member.

  In such a configuration, when the guide member is switched from the non-projecting state to the projecting state in a state where the cover member is open, the guide member is greatly projected from the cover member, so that the guide member is easily damaged. In order to solve such a problem, when providing the locking means for maintaining the non-projecting state of the guide member, if the locking means is provided on the recording apparatus main body side, the cover member is completely removed from the recording apparatus main body. When this occurs, the guide member may be switched to a protruding state, that is, a state in which damage is likely to occur. In addition, when the lock unit is provided on the recording apparatus main body side, there is a problem that the apparatus layout on the recording apparatus main body side is restricted.

  Accordingly, the present invention has been made in view of such a situation, and an object of the present invention is to provide a cover member that exposes a part of the paper transport path for paper jam processing, and a protruding state and a non-projecting state in the cover member. In the recording apparatus provided with the guide member provided so that the cover member can be taken, the state of the guide member when the cover member is opened is maintained in an appropriate state.

  In order to solve the above-described problems, a first aspect of the present invention is a recording apparatus including recording means for recording on a recording medium, wherein an opening formed in a part of the exterior of the recording apparatus covers the recording apparatus. A cover member that forms a closed state, an open state in which the opening is opened, a protruding state in which the amount of protrusion from the cover member into the apparatus is large, and a non-protruding state in which the protrusion amount is small. The recording medium is provided directly on the cover member or via another member so that the recording medium can be taken. When the cover member forms the closed state, the recording medium conveyed by taking the protruding state is guided downstream. A guide member that constitutes a part of a conveyance path for conveying the recording medium; and a guide member locking unit that locks the state of the guide member so that the guide member maintains the non-projecting state. Material locking means is provided on the side of the cover member, when said cover member forming the open state, always wherein said non-projecting state of the guide member is constructed as to be maintained.

  According to this aspect, there is provided a cover member that forms a closed state in which an opening formed in a part of the exterior of the recording apparatus is covered and an open state in which the opening is open. In the guide member, a guide member that constitutes a part of a conveyance path for conveying a recording medium has a protruding state in which the protruding amount from the cover member to the inside of the apparatus is large and a non-projecting state in which the protruding amount is small. It is provided so that it can be taken. Therefore, since the guide member can be miniaturized in the non-projecting state, the guide member may interfere with other components when the cover member is changed from the closed state to the open state or vice versa. Therefore, there is no restriction on the layout of the apparatus, and an increase in the size of the apparatus can be prevented.

  And the guide member locking means for locking the state of the guide member so that the guide member maintains the non-projecting state is provided on the cover member side, and when the cover member forms the open state, Since the non-projecting state of the guide member is always maintained, the guide member is maintained in the non-projecting state even if the cover member is completely removed from the recording apparatus main body. Thus, when the cover member forms the open state, it is possible to reliably prevent a problem that the guide member protrudes greatly and causes damage. Further, since the guide member locking means is not provided on the side of the recording apparatus main body, there is no restriction on the apparatus layout of the recording apparatus main body.

  According to a second aspect of the present invention, in the first aspect, the cover member locking means is capable of switching between a locked state in which the cover member is locked so as to hold the closed state and an unlocked state in which the locked state is released. The guide member is linked to the cover member locking means, and when the cover member is locked, the guide member is in the projecting state, and when the cover member is unlocked, the guide member is in the non-projecting state. And a member switching means.

  According to this aspect, in association with the lock operation / unlock operation of the cover member, the projecting state / non-projecting state of the guide member can be appropriately switched according to the state of the cover member. There is no need to operate the member and the guide member separately, and the operability for the user is improved.

  According to a third aspect of the present invention, in the first or second aspect, the cover member is rotatably provided on a main body of the recording apparatus, and the closed state and the open state are formed by turning. And forming. According to this aspect, the cover member is rotatably provided on the main body of the recording apparatus, and forms the closed state and the open state by rotating, so that the closed state can be easily operated. The open state can be formed.

  According to a fourth aspect of the present invention, in the first or second aspect, the cover member is detachably provided on the main body of the recording apparatus, forms the closed state in the mounted state, and in the detached state. The open state is formed. According to this aspect, the cover member is detachably provided in the main body of the recording apparatus, and forms the closed state in the mounted state and forms the open state in the detached state, so that the cover member is opened. A space for maintaining the state is not required, and a space for installing the recording apparatus can be saved.

  A fifth aspect of the present invention is the lock according to any one of the second to fourth aspects, wherein the cover member locking means engages with a main body of the recording apparatus to lock the cover member in the closed state. A lock member provided so as to be displaceable between a position and a non-lock position in which the lock state is released by releasing the engagement with the main body of the recording apparatus, and the lock member is biased toward the lock position And a lock member urging means. According to this aspect, the locked state of the cover member can be easily released by operating the lock member, and the lock member is biased toward the lock position, so the lock state is inadvertently released. It will not be done.

  According to a sixth aspect of the present invention, in the fifth aspect, the guide member locking means engages with a part of the lock member when the cover member forms the open state, A holding position for holding in the non-locking position and a non-holding position for allowing a displacement operation of the lock member without engaging with a part of the lock member when the cover member forms the closed state are displaced. And a holding member urging means for urging the holding member toward the holding position. When the cover member forms the closed state, the holding member is provided. When the member engages with a part of the main body of the recording apparatus, the member is positioned at the non-holding position against the biasing force of the holding member biasing means, and the cover member forms the open state. In Serial holding member, characterized in that it is configured to be positioned in the holding position under the biasing force from the retaining member biasing means.

  According to this aspect, when the cover member forms an open state, the structure that always maintains the non-projecting state of the guide member can be obtained with a simple structure and at a low cost by the holding member.

  According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the seventh aspect of the present invention includes a curved reversal feeding path that feeds the recording medium by curving and reversing, and the guide member is in the protruding state. A part of the curved inversion feeding path is configured, and a guide surface for guiding a recording medium is configured to extend downstream from the end position of the curved inversion path. According to this aspect, in the recording apparatus provided with the curved reversal feeding path in which paper jam is likely to occur, the operational effects described in any of the first to sixth aspects can be obtained.

  According to an eighth aspect of the present invention, there is provided a liquid ejecting apparatus including a liquid ejecting unit that ejects liquid onto an ejected medium, and a closed state in which an opening formed in a part of an exterior of the liquid ejecting apparatus is covered And a cover member that forms an open state in which the opening is opened, and a protruding state in which a protruding amount from the cover member into the apparatus is large and a non-projecting state in which the protruding amount is small. A medium to be ejected, which is provided directly on the cover member or via another member, and guides the medium to be ejected conveyed in the projecting state to the downstream side when the cover member forms the closed state. A guide member that constitutes a part of a transport path for transporting the guide member, and guide member locking means that locks the state of the guide member so that the guide member maintains the non-projecting state. Stage provided on a side of said cover member, when said cover member forming the open state, always wherein said non-projecting state of the guide member is constructed as to be maintained.

  Hereinafter, an overall configuration of an inkjet printer (hereinafter referred to as “printer”) 1 as an example of a recording apparatus or a liquid ejecting apparatus according to the present invention will be outlined with reference to FIGS. 1 and 2. Here, FIG. 1 is an external perspective view of the printer 1, and FIG. In the following description, the right direction (front side of the apparatus) in FIG. 2 is referred to as “downstream side” of the sheet conveyance path, and the left direction (rear side of the apparatus) is referred to as “upstream side”.

As shown in FIG. 1, the printer 1 is a multi-function machine having a scanner function in addition to a printer function, and includes a printer unit 1A and a scanner unit 1B located above the printer unit 1A.
The printer unit 1A has a function of an ink jet printer that performs ink jet recording mainly on recording paper (mainly cut sheet paper) as an example of “recording medium” and “ejection medium”. An operation panel 1C including operation buttons, a liquid crystal display unit, and the like is provided on the upper front side of the printer unit 1A. The scanning function using the scanner unit 1B, the recording function in the printer unit 1A, and the scanned image are provided. And the like can be operated on the operation panel 1C.

  The scanner unit 1B includes a lid body 8 that can be opened and closed by pivoting upward about a pivot shaft (not shown) at the rear of the apparatus, and the lower side of the lid body 8 is a target for scanning. A glass placement surface (not shown) for placing printed matter or the like is provided. Further, a scanning device (not shown) is provided below the glass placement surface. The scanner unit 1B as a whole pivots upward about a pivot shaft (not shown) at the rear of the apparatus as a whole, so that the upper part of the printer unit 1A is opened and a member (for example, a carriage) Ink cartridges) can be replaced and maintained.

  Hereinafter, the configuration of the printer unit 1A on the paper conveyance path will be described with reference to FIG. As shown in FIG. 2, the printer 1 has a plurality of feeding means, that is, a rear feeding device 2 at the rear of the apparatus and a front feeding device 3 at the bottom of the apparatus. The recording paper P as “recording medium” or “jetting medium” is fed to the means 5. The recording paper P is conveyed by the conveying means 5 to the recording means 4 (recording head 48). After recording is performed, the recording paper P is discharged by a discharging means 6 to a stacker (not shown).

Hereinafter, the components on the paper transport (feed) path will be described in more detail.
The rear feeding device 2 includes a hopper 12, a feeding roller 11, a retard roller 13, a return lever (not shown), and other components not shown.
Hopper 12 is a plate-like member, capable of pivoting about the upper portion of the swing fulcrum 12a, by rocking the paper P ₁ which is supported in an inclined position on the hopper 12 to the feeding roller 11 The pressure contact posture for pressure contact and the separation posture for separating from the feeding roller 11 are switched.

Feeding roller 11 is a circular shape, by rotating, to feed the sheet P ₁ in the topmost pressed to the downstream side. In the following description, the recording paper set and fed to the rear feeding device 2 is referred to as “paper P ₁ ”, and the recording paper set and fed to the front feeding device 3 is referred to as “paper P ₂ ”. In other words, when there is no need to distinguish between the two, it is referred to as “paper P” or simply as paper.

Next, the retard roller 13 has an outer periphery formed of an elastic material and is provided so as to be able to come into pressure contact with the feeding roller 11, and is provided in a state where a predetermined rotational resistance is given by a torque limiter mechanism. Therefore, when only one sheet is fed without occurrence of double feeding of the sheet P ₁ , the retard roller 13 is driven to rotate with respect to the feeding roller 11, and the sheet P ₁ is retarded with the feeding roller 11. When there are a plurality of sheets between the roller 13 and the roller 13, the sheet 13 stops without rotating due to the sliding action between the sheets, and the next and subsequent sheets P ₁ are prevented from being double-fed. A sheet return lever (not shown) is provided in the vicinity of the retard roller 13, and the next and subsequent sheets P ₁ about to be double fed are returned onto the hopper 11 by the sheet return lever.

On the other hand, located at the bottom of the rear feeding device 2, the front feeding device 3 configured as to set the paper from the front of the apparatus includes a settable sheet cassette 25 a plurality of sheets of paper P ₂ in a stacked state, A pickup roller 26, a feeding roller 28, a separation roller 29, an assist roller 30, a cover Assy 60 (detailed later), and other components not shown are further provided.

A pickup roller 26 that is rotationally driven by a drive motor (not shown) is provided on a swing member 27, and the swing member 27 is provided so as to be swingable about a swing shaft 27a. 26, and can contact and separation with respect to the uppermost of the sheets P ₂ set in the sheet cassette 25 as shown at 26 and 26 '. The pick-up roller 26, by rotating in contact with the uppermost sheet cassette 25 is set on the sheet P _2, feeding the sheet P ₂ of the uppermost to the feed direction is taken out from the paper feed cassette 25 .

Feeding roller 28 is rotated by a driving motor (not shown), is curved reversing the sheet P ₂ the uppermost fed from the sheet cassette 25 in a substantially U shape, i.e. the paper take-out direction (left direction in FIG. 1) Is reversed in the opposite direction and fed to the conveying means 5 after the paper guidance 44. That is, the outer peripheral surface of the feed roller 28, a substantially U-shaped curved inverting feed path for feeding by curving reversing the sheet P ₂ is formed. Reference numerals 66 and 67 are guide members (fixed guide 66, movable guide 67) provided to face the outer peripheral surface of the feed roller 28, and together with the feed roller 28, form the curved reversal feed path. The fixed guide 66 and the movable guide 67 will be described in detail later.

Next, the front feeding device 3 is provided with two separation units (separation means). The first separation unit is configured by a slidable contact surface 35 provided at a position facing the leading edge of the paper set in the paper feed cassette 25. That is, the leading edge of the paper P ₂ sent out in the feeding direction by the pickup roller 26 is sent to the downstream side while being in sliding contact with the sliding contact surface 35, and thereby the uppermost paper P ₂ to be fed, and the paper P ₂ of the next or subsequent to going to be brought are in multi-feeding are separated.

  The second separation unit includes a feeding roller 28 and a separation roller 29. The separation roller 29 is disposed at a position facing the outer peripheral surface of the feed roller 28, and is provided so as to be able to advance and retreat with respect to the feed roller 28 as indicated by reference numerals 29 and 29 '. Similarly to the retard roller 13, the separation roller 29 is provided in a state where a predetermined rotational resistance is given by a torque limiter mechanism.

Therefore, the separation roller 29 nips the fed paper P ₂ with the feeding roller 28, so that when only one sheet is fed without causing double feeding, the separation roller 29 is driven in contact with the paper P _2. rotating, when the sheet P ₂ is present a plurality between the feeding roller 28 and the separation roller 29 becomes the stopped state without rotating the sliding action between the sheets, about to be multi-fed next order paper P ₂ of the subsequent fastened near the nip point between the feeding roller 28 and the separation roller 29, the double feed can be prevented. Reference numeral 38 denotes a guide roller for guiding the leading edge of the sheet to the nip point between the feeding roller 28 and the separation roller 29.

Next, the assist roller 30 is provided so as to be driven and rotated in contact with the outer peripheral surface of the feed roller 28, and by rotating the feed roller 28 by nipping the paper P ₂ with the feed roller 28. to feed assist the sheet P ₂ associated with.
Next, on the downstream side of the rear feeding device 2 and the front feeding device 3, a paper detector (not shown) for detecting the passage of the fed paper P and the rear feeding device 2 feed the paper. A guide roller 40 that forms the feeding posture of the paper P ₁ to be fed and a paper guiding post 44 that guides the fed paper P to the conveying means 5 are provided.

  The transport means 5 includes a transport drive roller 41 that is rotationally driven by a motor, and a transport driven roller 42 that is pivotally supported by the paper guide upper 43 so as to be driven to rotate while being pressed against the transport drive roller 41. Yes. The paper P that has reached the transport means 5 is transported to the recording means 4 (recording head 48) on the downstream side when the transport drive roller 41 rotates while being nipped by the transport drive roller 41 and the transport driven roller 42. Is done.

  A recording head (liquid ejecting head) 48 is provided at the bottom of the carriage 46, and the carriage 46 is guided by a carriage guide shaft 47 extending in the main scanning direction (the front and back direction in FIG. 2), and is subjected to main scanning by a drive motor (not shown). Driven to reciprocate in the direction. The carriage 46 is equipped with independent ink cartridges (not shown) for a plurality of colors, and ink is supplied from the ink cartridges to the recording head 48.

  A paper guide lower 45 is provided at a position facing the recording head 48, and the distance between the paper P and the recording head 48 is defined by the paper guide lower 45. In addition, ribs 45a, 45b, 45c are formed from the upstream side in the portion facing the recording head 48 in the paper guide 45, and the front end or the rear end of the paper is positioned between the ribs. So-called borderless printing is performed by ejecting ink to an area outside the trailing edge of the paper.

  Subsequently, on the downstream side of the recording unit 4, an auxiliary roller 57 that prevents the sheet P from being lifted from the lower sheet guide 45 and a discharge unit 6 that discharges the recorded sheet P are provided. The discharge means 6 includes a discharge drive roller 55 that is rotationally driven by a motor (not shown), and a discharge driven roller 56 that rotates in contact with the discharge drive roller 55.

  The discharge driven roller 56 is formed by a toothed roller having a plurality of teeth on the outer periphery, and a plurality of discharge driven rollers 56 are provided on the discharge frame Assy 54 having a long shape in the main scanning direction so as to correspond to the plurality of discharge driving rollers 56. The paper P on which recording has been performed by the recording means 4 is rotated by the discharge drive roller 55 while being nipped by the discharge drive roller 55 and the discharge driven roller 56, whereby a stacker (provided on the front side of the apparatus). (Not shown).

  The configuration of the printer 1 has been described above. Hereinafter, the configuration of the front feeding device 3 will be described in more detail with reference to FIGS. 3 to 14. 3 and 4 are perspective views of the printer 1 as viewed from the rear, FIGS. 5 to 7 are perspective views of the front feeding device 3 (cover Assy 60) as viewed from the rear, and FIG. 8 is a perspective view of the cover Assy 60. 9 is an exploded perspective view of the cover Assy 60. FIGS. 10A and 10B are perspective views of the slider right 64 and left 65 and the holding member 68. FIGS. 11A and 11B are side views of the same. 12 to 14 are side sectional views of the sheet feeding path with the front feeding device 3 as the center.

  As shown in FIG. 3, a rear cover upper 59 constituting the exterior of the printer 1 and a rear cover lower 63 as a “cover member” are provided on the rear surface of the printer 1, and knobs 64 a and 65 a are provided on the rear cover lower 63. It has been. The rear cover upper 59 is removable, and the rear cover upper 64 is removed, and the knobs 64a and 65a are operated to rotate the rear cover lower 63 (cover Assy 60). The opening 1D formed in the rear part of the exterior is in an open state or a closed state in which the opening 1D is covered as shown in FIG. Therefore, in the open state, when a paper jam occurs in the front feeding device 3, it is possible to remove the paper. The lower rear cover 63 forms a closed state in which the opening 1D is covered in this way and an open state in which the opening 1D is opened.

As shown in FIG. 5, the cover Assy 60 including the lower rear cover 63 can be rotated around the frames 61 and 62 constituting a part of the base of the printer 1 (front feeding device 3) using the rotation shaft 63a as a rotation fulcrum. Is attached.
As shown in FIGS. 8 and 9, the cover Assy 60 has a slider right 64, a slider left 65, a fixed guide 66, a movable guide 67, a holding member 68, a spring 69, rack members 70 and 70, and a pinion inside the rear cover lower 63. Gears 71 and 71 are provided.

Slider right 64 and left 65 as “locking members” constituting “cover member locking means” are provided to be slidable to the left and right in the rear cover lower 63, and urging means (locking member urging means not shown) is provided. ) Are urged in directions away from each other.
Rack members 70, 70 are provided on the fixed guide 66 so as to be slidable in a direction (depth direction of the printer 1) perpendicular to the sliding directions of the slider right 64 and left 65, and the teeth formed on the rack members 70, 70 The meshing pinion gears 71 and 71 are provided on the fixed guide 66.

  The movable guide 67 is supported by rack members 70, 70, that is, the rack members 70, 70 are movable in a direction perpendicular to the sliding direction of the slider right 64 and left 65. Here, teeth 65 c and 65 c are formed on the slider left 65, and these teeth 65 c and 65 c are provided so as to mesh with the pinion gears 71 and 71. Accordingly, the pinion gears 71 and 71 are rotated in accordance with the sliding operation of the slider right 64 and left 65, and as a result, the rack members 70 and 70, that is, the movable guide 67, are perpendicular to the sliding direction of the slider right 64 and left 65. Move in the depth direction of the device. That is, the slider left 65, the rack member 70, and the pinion gear 71 constitute “guide member switching means”.

  Projections 64a and 65a projecting outward are formed on the side surfaces of the slider right 64 and the slider left 65, respectively, and these projections 64a and 65a are formed through holes 63b and 63b formed on the side surface of the rear cover lower 63. Each is provided so as to protrude. Further, as shown in FIGS. 4 and 5, knobs 64 a and 65 a are formed on the front surfaces of the slider right 64 and the slider left 65, respectively, and are respectively exposed from the window 63 c formed in the lower rear cover 63. Configured.

  The cover Assy 60 configured as described above is rotatably supported by the frames 61 and 62 as described above. FIG. 5 shows a state where the lower rear cover 63 is locked so as to maintain the closed state. In this state, the protrusion 64b formed on the slider right 64 is fitted into the hole 61a formed on the frame 61 (the positions of the slider right 64 and the left 65 at this time become the “lock position”), thereby the cover assembly 60. The rotation shaft 63a is locked so as not to rotate (the “locked state” of the rear cover lower 63). In this locked state, the protrusion 65 b of the slider left 65 is also fitted in a hole (not shown) formed in the frame 62.

  In this state, the knobs 64a and 65a are separated from each other as shown in FIG. 5, and when the knobs 64a and 65a are moved closer to each other as shown in FIG. The protrusion 64b is retracted from the hole 61a formed in the frame 61 (the positions of the slider right 64 and left 65 at this time are “unlocked positions”), that is, the engagement state with the frames 21 and 22 is released. As a result, the cover Assy 60 can be rotated about the rotation shaft 63a (the “unlocked state” of the rear cover lower 63).

  Further, by operating the knobs 64a and 65a, the movable guide 67 moves in the direction approaching the rear cover lower 63 as described above. That is, when the rear cover lower 63 is in the locked state, the movable guide 67 is in a state in which the amount of protrusion from the rear cover lower 63 to the inside of the apparatus is large (the “protruding state of the movable guide 67”), and the rear cover lower 63 is in the locked state. When released, it moves closer to the rear cover lower 63 side and the amount of protrusion becomes small (the “non-protruding state of the movable guide 67”).

From this state, the cover Assy 60 is rotated to the near side about the rotation shaft 63a, thereby exposing the curved reversal feeding path centering on the feeding roller 28 in the front feeding device 3 as shown in FIG. The paper jam processing is possible.
5 to 7, reference numeral 63c denotes a boss formed on the side surface of the lower rear cover 63, and this boss 63c is loosely inserted into an arcuate guide groove 61c formed in the frame 61. The rotation range of the cover Assy 60 is regulated.

Next, the movable guide 67 is always maintained in the non-projecting state by the “guide member locking means” when the lower rear cover 63 forms an open state.
This guide member locking means includes a holding member 68 and a spring 69 shown in FIGS.

The holding member 68 and the spring 69 are provided not on the main body side of the printer 1 (front feeding device 3) but on the cover Assy 60 side. As shown in FIG. 12, an engaging portion 36a formed on the guide member 36 is provided on the engaging portion 36a. It is provided in the state biased by the spring 69.
FIG. 12 (and FIG. 13) shows a state in which the rear cover lower 63 forms a closed state. In this state, the holding member 68 is in a position close to the rear cover lower 63 side against the biasing force of the spring 69. is there.

  Here, as shown in FIGS. 9 and 10, protrusions 68a and 68a are formed at predetermined intervals on the holding member 68, and the protrusions 68a and 68a are formed at desired positions on the slider right 64 and left 65, respectively. 64d and 65d are formed, and when the rear cover lower 63 is in the closed state, as shown in FIG. 12, the protrusions 68a and 68a are located closer to the rear cover lower 63 than the protrusions 64d and 65d. The protrusions 68a and 68a are in a state of permitting the displacement operation of the slider right 64 and left 65 ("non-holding position" of the holding member 68).

  From this state, when the knobs 64a and 65b are operated as shown in FIG. 6, the protrusions 64d and 65d come close to each other and the protrusion of the holding member 68 as shown in FIGS. It arrange | positions in the position desired in the space between 68a and 68a. At this time, as shown in FIG. 13, the movable guide 67 is brought into a non-projecting state, and the distal end 67 a of the movable guide 67 is retracted from the paper guide 44.

When the cover Assy 60 rotates, the engagement state between the holding member 68 and the engaging portion 36a is released as shown in FIG. 14, and the holding member 68 receives the urging force of the spring 69 and moves away from the rear cover lower 63. Move to.
FIGS. 10B and 11B show the state at this time. As shown in the drawing, the protrusions 64d and 65d of the slider right 64 and the left 65 enter between the protrusions 68a and 68a of the holding member 68. The sliders 64 and 65 are prevented from sliding, that is, the sliders right 64 and left 65 are held in the unlocked position (the “holding position” of the holding member 68).
As described above, when the rear cover lower 63 forms an open state, the movable guide 67 is always maintained in a non-projecting state.

  Hereinafter, further description will be given from the viewpoint of the movable guide 67. When the rear cover lower 63 forms a closed state as shown in FIG. 12, the movable guide 67 is in a state of projecting toward the curved reversal feeding path formed by the outer peripheral surface of the feeding roller 28. Then, the leading end 67a extends further downstream from the end position of the curved reversal feeding path (the position where the paper curving section ends by the feed roller 28), that is, the guide surface for guiding the paper ends the curved reversal feeding path. The paper is extended further downstream than the position to form a seamless paper guide surface.

  However, in such a protruding state of the movable guide 67, the tip 67a of the movable guide 67 interferes with the bottom of the rear feeding device 2 even if the cover Assy 60 tries to rotate about the rotation shaft 63a. In FIG. 11, reference numeral R <b> 1 indicates a locus drawn by the tip 67 a when the cover Assy 60 rotates while the movable guide 67 is in the protruding state.

  Next, FIG. 13 shows a non-projecting state of the movable guide 67. In this state, as shown in the figure, the movable guide 67 is retracted to the lower side of the rear cover 63. (Represented by reference symbol R2) does not interfere with the rear feeding device 2, and the cover Assy60 can be rotated about the rotation shaft 63a. In the open state shown in FIG. 14, the movable guide 67 is maintained in the non-projecting state even if the hand is released from the knobs 64 a and 65 a, so that the cover Assy 60 can be downsized and the movable guide 67 in the open state. Can be prevented (particularly, the tip 67a of the movable guide 67).

  Further, when the rear cover lower 63 is changed from the closed state to the open state, or vice versa, the movable guide 67 is brought into the non-projecting state, so that the leading end 67a of the movable guide 67 collides with the components of the printer. Thus, the tip 67a can be prevented from being damaged, the device layout can be prevented from being restricted, the design freedom can be maintained, and the device can be prevented from being enlarged.

  Further, since the switching between the projecting state / non-projecting state of the movable guide 67 is performed in conjunction with the locking / unlocking operation of the lower rear cover 63 as described above, the locking / unlocking operation of the rear cover 63 and the movable guide 67 are performed. Therefore, it is not necessary to perform the state switching operation separately, and the operability is improved.

  Since the holding member 68 for maintaining the movable guide 67 in the non-projecting state is provided on the cover Assy 60 side, even if the cover Assy 60 is completely removed from the printer 1 main body, the non-projecting state of the movable guide 67 is reliably maintained. Is done. Further, since the holding member 68 is provided on the cover Assy 60 side, there is no restriction on the device layout of the main body of the printer 1.

  15 and 16 show another embodiment. The same components as those in the above embodiment are denoted by the same reference numerals. In this embodiment, the cover Assy 60 does not form an open state / closed state by rotating, but forms an open state / closed state by being attached and detached.

  That is, a protrusion 64b is provided instead of the rotation shaft 63a in the above embodiment. Accordingly, when the knobs 64a and 65a are picked, the projections 64b and 64b are retracted from the holes 61a and 61a formed in the frame 610 on one side, and the movable guide 67 is brought into a non-projecting state. As shown in FIG. It can be completely removed from one body. According to such an embodiment, a space in which the cover Assy 60 rotates is unnecessary. In this embodiment as well, it goes without saying that the non-projecting state of the movable guide 67 is maintained even when the cover Assy 60 is removed and the hand is removed from the knobs 64a and 65a.

1 is an external perspective view of a printer according to the present invention. 1 is a side sectional view of a printer according to the present invention. The perspective view which looked at the printer concerning the present invention from back. The perspective view which looked at the printer concerning the present invention from back. The perspective view which looked at the front feeder (cover Assy) from back. The perspective view which looked at the front feeder (cover Assy) from back. The perspective view which looked at the front feeder (cover Assy) from back. The perspective view of cover Assy. The exploded perspective view of cover Assy. (A), (B) is a perspective view of a slider and a holding member. (A), (B) is a side view of a slider and a holding member. The sectional side view of a front feeding apparatus. The sectional side view of a front feeding apparatus. The sectional side view of a front feeding apparatus. The perspective view which looked at cover Assy concerning other embodiments from back. The perspective view which looked at cover Assy concerning other embodiments from back.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inkjet printer, 1A printer part, 1B scanner unit, 1D opening, 2 Rear feeding device, 3 Front feeding device, 4 Recording means, 5 Conveying means, 6 Ejecting means, 25 Paper feeding cassette, 26 Pickup roller, 27 Shaking Moving member, 28 Feeding roller, 29 Separating roller, 30 Assist roller, 36 Guide member, 38 Guide roller, 40 Guide roller, 41 Conveying drive roller, 42 Conveying driven roller, 43 On paper guidance, 44 After paper guidance, 45 paper Under guide, 46 Carriage, 47 Carriage guide shaft, 48 Recording head, 55 Ejection drive roller, 56 Ejection driven roller, 57 Auxiliary roller, 59 Rear cover, 60 Cover Assy, 61, 62 Frame, 63 Rear cover, 63a Rotating shaft , 63b hole, 63c window, 64 slider right, 64a knob 64b protrusions 64d protruding, 65 slider left, 65a knob portion, 65b projection, 65c rack, 65d projections 66 fixed guide 67 movable guides, 68 holding member, 68a projection 69 spring, 70 the rack member, 71 a pinion, _{P 1} , _{P 2} recording paper

Claims (8)

A recording apparatus comprising recording means for recording on a recording medium,
A cover member that forms a closed state in which an opening formed in a part of the exterior of the recording apparatus is covered; and an open state in which the opening is opened;
The cover member is provided directly or via another member so as to be able to take a protruding state in which the protruding amount from the cover member into the apparatus is large and a non-projecting state in which the protruding amount is small. A guide member constituting a part of a conveyance path for conveying the recording medium, which guides the recording medium conveyed by taking the protruding state to the downstream side when forming the closed state;
A guide member locking means for locking the state of the guide member so that the guide member maintains the non-projecting state,
The guide member locking means is provided on the cover member side, and is configured such that the non-projecting state of the guide member is always maintained when the cover member forms the open state.
A recording apparatus. The cover member locking means according to claim 1, wherein the cover member locking means is capable of switching between a locked state for locking the cover member to hold the closed state and an unlocked state for releasing the locked state.
Linking with the cover member locking means, the guide member is switched to the projecting state when the cover member is locked, and the guide member is set to the non-projecting state when the cover member is unlocked. Means,
A recording apparatus comprising: 3. The recording apparatus according to claim 1, wherein the cover member is rotatably provided on a main body of the recording apparatus, and forms the closed state and the open state by rotating. The recording apparatus according to claim 1, wherein the cover member is detachably provided on a main body of the recording apparatus, and forms the closed state in a mounted state and forms the open state in a detached state. . 5. The lock position according to claim 2, wherein the cover member locking means engages with the main body of the recording apparatus to lock the cover member in the closed state, and the main body of the recording apparatus. A non-locking position for releasing the engagement and releasing the locked state, and a lock member provided to be displaceable,
And a lock member urging means for urging the lock member toward the lock position. The holding position for holding the lock member in the unlocked position by engaging the part of the lock member when the cover member forms the open state. A non-holding position that allows a displacement operation of the lock member without engaging with a part of the lock member when the cover member forms the closed state;
Holding member urging means for urging the holding member toward the holding position,
When the cover member forms the closed state, the holding member engages with a part of the main body of the recording apparatus, thereby preventing the non-holding against the urging force of the holding member urging means. Located in position
When the cover member forms the open state, the holding member is configured to receive an urging force from the holding member urging means and be positioned at the holding position.
A recording apparatus. In any one of Claims 1-6, The curve reversal feed path which carries out curve reversal and feeds a recording medium,
The guide member constitutes a part of the curved inversion feeding path in the protruding state, and is configured to extend a guide surface for guiding a recording medium from the end position of the curved inversion path to the downstream side. Yes,
A recording apparatus. A liquid ejecting apparatus including a liquid ejecting unit that ejects liquid onto an ejected medium,
A cover member that forms a closed state in which an opening formed in a part of an exterior of the liquid ejecting apparatus is covered; and an open state in which the opening is opened;
The cover member is provided directly or via another member so as to be able to take a protruding state in which the protruding amount from the cover member into the apparatus is large and a non-projecting state in which the protruding amount is small. A guide member constituting a part of a transport path for transporting the ejected medium, which guides the ejected medium transported by taking the protruding state to the downstream side when forming the closed state;
A guide member locking means for locking the state of the guide member so that the guide member maintains the non-projecting state,
The guide member locking means is provided on the cover member side, and is configured such that the non-projecting state of the guide member is always maintained when the cover member forms the open state.
A liquid ejecting apparatus.

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