JP2009285981A - Liquid delivery device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent maintainability from being affected unfavorably, even when applied to a line type inkjet printer, while not bringing a delivery object (for example, recording paper sheet) into contact with a liquid delivery face. <P>SOLUTION: A liquid delivery device is provided with a line head 20 (head module 30) formed with a nozzle line, and a guide panel 40 arranged independently of the line head 20 (head module 30) in an ink delivery face 21 side, and serving as a guide when moving the recording paper sheet 11 along a direction in parallel to an ink delivery face 21, and the guide panel 40 has a guide rib 41 for separating the recording paper sheet 11 from the ink delivery face 21, not to bring the recording paper sheet 11 into contact with the ink delivery face 21, and an opening part 42 formed in a portion opposed to the nozzle line of the line head 20 (head module 30). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid ejection apparatus that guides an ejection target that is a liquid ejection target. More specifically, the present invention relates to a technique that prevents the discharge target from coming into contact with the liquid discharge surface and prevents the maintenance operation of the liquid discharge surface from being hindered.

  A liquid discharge apparatus such as an ink jet printer discharges ink (liquid) from a plurality of nozzles formed in a liquid discharge head, and forms an image or the like on a recording sheet (discharge target). There are two types of recording paper: one that uses cut sheets one by one and the other that uses roll paper obtained by winding a long recording paper around a paper tube in a cylindrical shape.

  In recent years, roll paper, which is advantageous in terms of cost, is widely used when printing with high image quality due to the spread of digital cameras and the like. In the ink jet printer using the roll paper, a necessary amount is pulled out and fed to the liquid discharge head every time printing is performed, and the printed paper is cut into a predetermined size and discharged.

  As described above, an inkjet printer using roll paper pulls out and feeds a recording paper wound in a cylindrical shape, and the drawn recording paper is curled. The degree of curling becomes more prominent as it is used (as it approaches the core side). Therefore, in the case of an ink jet printer that performs printing by ejecting ink without bringing the liquid ejection head into contact with the recording paper, the curled recording paper is placed on the liquid ejection head on the printing table below the liquid ejection head. It tends to float up.

  FIG. 8 is a schematic diagram showing a state at the time of printing by such a conventional ink jet printer 110. 8A shows a case where the leading end of the recording paper 111 which is roll paper is warped upward, and FIG. 8B shows that the intermediate portion of the recording paper 111 which is roll paper is lifted by curling. Shows the case.

  As shown in FIG. 8, the inkjet printer 110 prints on a recording paper 111 (roll paper). Then, a sheet feeding roller 112 that feeds the recording sheet 111 conveyed from a sheet feeding unit (not shown), a printing table 113 that supports the fed recording sheet 111 substantially horizontally, and printing were performed. A paper discharge roller 114 for discharging the recording paper 111 to a paper tray (not shown) is provided.

  In addition, the inkjet printer 110 includes a line head 120 that forms an image by ejecting ink from the ink ejection surface 121 onto the recording paper 111 on the printing table 113. The line head 120 includes four head modules 130 that eject ink of four colors, yellow (Y), magenta (M), cyan (C), and black (K).

  Here, when printing is performed on the recording paper 111 that is lifted by curling or the like, the image quality is degraded. That is, the ink jet printer 110 ejects ink while maintaining the ink ejection surface 121 and the recording paper 111 at a predetermined interval (head gap), thereby causing the ink to land on the recording paper 111 at an accurate position and size. , Forming an image.

  However, as shown in FIG. 8A, if the recording paper 111 is curled and the leading edge is warped upward, the leading edge cannot be accurately detected, and registration misalignment may occur. Further, when printing is performed in such a state, the leading edge of the curled recording paper 111 may be caught by the head module 130 and the recording paper 111 may be jammed. Then, not only the recording paper 111 is soiled but also the line head 120 (head module 130) may be damaged.

  Further, as shown in FIG. 8B, if the intermediate portion of the recording paper 111 is conveyed in a state of being raised by curling, the ink landing accuracy is greatly reduced, and the image is distorted. Furthermore, if the degree of curl is large, the recording paper 111 comes into contact with the ink ejection surface 121, and the print screen is soiled by ink or dust adhering to the ink ejection surface 121, leading to a reduction in image quality.

In view of this, a technique for reducing problems caused by curling of recording paper is disclosed. That is, this is a technique for keeping the head gap constant by the gap adjusting means so that the liquid ejection head is raised by the thickness of the recording paper, thereby preventing the recording paper from coming into contact. Specifically, the head unit is slidably supported in the Y direction by a guide shaft and a slot, and a guide ball that is rotatably supported on the bottom surface of the unit body is brought into contact with the printing surface of the recording paper. It has become. Therefore, the guide ball is lifted according to the thickness of the recording paper, and the head gap can be kept at a predetermined distance (see, for example, Patent Document 1).
JP 2003-72055 A

In addition, a technique is known in which a nozzle cover is provided that is attached to the head case and covers the outer edge of the nozzle plate, and a bar is bridged over the opening of the nozzle cover. This bar covers the nozzle surface (ink discharge surface) between the nozzle groups, and minimizes the exposed area of the nozzle surfaces. Therefore, recording paper such as corner breaks and jams is protected from contact with the nozzle surface, and damage to the nozzle surface is prevented (see, for example, Patent Document 2).
JP 2004-284255 A

Furthermore, two suction hole arrays for sucking both edges in the width direction of the roll paper are provided, and a technique for preventing lifting of both edges in the width direction of the roll paper without causing any trouble in paper feeding and printing. It has been known. A plurality of types of roll paper having different widths are provided with a blocking plate that prevents air leakage from suction holes that do not contribute to suction (see, for example, Patent Document 3).
Japanese Patent No. 3995161

  However, the technique described in Patent Document 1 has a problem that since the guide ball is supported on the bottom surface (ink discharge surface) of the unit main body, the bottom surface is not flush and maintenance properties such as cleaning are impaired. . In particular, in the case of a line-type inkjet printer having a line head, the bottom surface is larger than that of a serial method in which printing is performed by moving the head. Therefore, the head gap cannot be maintained at a predetermined distance unless the number of guide balls is increased. Then, the unevenness of the bottom surface is increased by the number of guide balls, and the maintainability is greatly impaired.

  Further, in the technique described in Patent Document 2, a step is formed by a crosspiece spanning the opening of the nozzle cover. Therefore, as in the technique of Patent Document 1, maintenance performance such as cleaning becomes a problem. Particularly, in the case of a line-type inkjet printer, maintenance performance is greatly impaired.

  Furthermore, the technique described in Patent Document 3 requires a suction fan in order to prevent the recording paper from floating. In addition, the apparatus becomes large in order to supply air and prevent leakage. In particular, in the case of a line-type inkjet printer, it is necessary to install a long suction hole, which complicates the apparatus.

  Therefore, the problem to be solved by the present invention is to prevent the discharge target (for example, recording paper) from coming into contact with the liquid discharge surface. Further, even when applied to a line-type inkjet printer, it is possible to avoid an increase in size and complexity of the apparatus without adversely affecting the maintainability.

The present invention solves the above-described problems by the following means.
According to a first aspect of the present invention, there is provided a liquid discharge head in which a plurality of nozzles for discharging a liquid, a nozzle row in which the nozzles are arranged in one direction, and a liquid discharge of the liquid discharge head. A guide member that is arranged on the surface side independently of the liquid discharge head and serves as a guide when a discharge target that is a liquid discharge target moves in a direction parallel to the liquid discharge surface, And a liquid ejection device having a protrusion for separating the ejection object from the liquid ejection surface and an opening formed at a portion facing the nozzle row so that the ejection object does not contact the liquid ejection surface. Device.

(Function)
The invention described in claim 1 includes a guide member that serves as a guide when the discharge target object moves in a direction parallel to the liquid discharge surface. The guide member has a protrusion for separating the discharge target from the liquid discharge surface so that the discharge target does not contact the liquid discharge surface. Therefore, even if the discharge target is a roll paper with a curl, it does not come into contact with the liquid discharge surface.

  In addition, since the guide member has an opening formed in a portion facing the nozzle row, the guide member does not hinder liquid discharge. Furthermore, since the guide member is disposed independently of the liquid discharge head, the guide member does not adversely affect the flatness of the liquid discharge surface.

  According to the above-described invention, the guide member prevents the discharge target from coming into contact with the liquid discharge surface even if it is a roll paper with a curl. Therefore, it is possible to prevent the image quality from deteriorating, the registration error, the jam, and the like while avoiding the increase in size and complexity of the apparatus. In addition, since the guide member does not adversely affect the flatness of the liquid discharge surface, the maintainability is not impaired even when the guide member is applied to a line-type inkjet printer.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In the following embodiments, the liquid ejecting apparatus of the present invention will be described by taking as an example an ink jet printer 10 in which the liquid to be ejected is ink. The ink jet printer 10 is a line type equipped with a line head 20 (corresponding to the liquid ejection head in the present invention) of a print width (for example, A4 size), and is compatible with full color. Further, roll paper is used as the recording paper 11 (corresponding to the ejection target in the present invention).

FIG. 1 is a schematic diagram showing the overall configuration of the inkjet printer 10 of the present embodiment, and shows a state during printing.
As shown in FIG. 1, the inkjet printer 10 performs printing on a recording paper 11 that is roll paper. Then, a sheet feeding roller 12 that feeds the recording sheet 11 conveyed from a sheet feeding unit (not shown), a printing table 13 that supports the fed recording sheet 11 substantially horizontally, and printing were performed. A paper discharge roller 14 for feeding the recording paper 11 is provided. Note that the recording paper 11 (roll paper) sent out by the paper discharge roller 14 is cut into a predetermined size and then discharged onto a paper tray (not shown).

  The inkjet printer 10 also includes a line head 20 that forms an image by ejecting ink from an ink ejection surface 21 (corresponding to a liquid ejection surface in the present invention) onto the recording paper 11 on the printing table 13. Yes. The line head 20 includes four head modules 30 that eject inks of four colors of yellow (Y), magenta (M), cyan (C), and black (K).

  Here, a guide panel 40 (corresponding to a guide member in the present invention) is provided so as to face the printing table 13. The guide panel 40 serves as a guide when the recording paper 11 moves in a direction parallel to the ink ejection surface 21. Therefore, the recording paper 11 moves on the printing table 13 while being guided by the guide panel 40.

  Furthermore, the inkjet printer 10 includes a head cap unit 50 for protecting the ink discharge surface 21 of the line head 20. The head cap unit 50 covers the ink ejection surface 21 as a whole and protects the ink ejection surface 21 so as to prevent drying and clogging. And it has the cap base 51, the four springs 52, and the four head caps 53 (equivalent to the cap member in this invention) corresponding to the four head modules 30. That is, each head cap 53 is elastically supported by the cap base 51 independently by each spring 52.

  Further, the ink jet printer 10 includes elevating means for elevating and lowering the line head 20 as indicated by the vertical arrow shown in FIG. 1, and moving means for moving the head cap unit 50 as indicated by the horizontal arrow shown in FIG. Have. The elevating means and the moving means are configured by, for example, a driven and rotated gear, belt, cam, piston, or a combination thereof.

  Therefore, the line head 20 is moved up and down by the elevating means to the printing position (position shown in FIG. 1) where the ink ejection surface 21 descends to a position directly above the printing table 13 to form an image on the recording paper 11, and the ink ejection surface. The head 21 is moved up and down between the raised positions that allow the head cap unit 50 to protect the head 21. At the printing position, the ink ejection surface 21 is inserted into the guide panel 40, so that the guide panel 40 does not hinder ink ejection.

  The head cap unit 50 is moved by the moving means when the line head 20 is in the raised position. That is, by moving away from the ink ejection surface 21, the head module 30 is displaced between a retreat position (a position shown in FIG. 1) and a capping position directly below the ink ejection surface 21. For this reason, during standby when printing is not performed, the head cap unit 50 moves directly below the ink discharge surface 21, and each head cap 53 comes into contact with the ink discharge surface 21 to close each head module 30. On the other hand, at the time of printing, the head module 30 is moved to the retracted position, and the ink discharge surface 21 is exposed. Since the guide panel 40 is disposed independently of the line head 20, the head cap unit 50 is positioned between the line head 20 in the raised position and the guide panel 40 at the capping position of the head cap unit 50. Will be.

FIG. 2 is a perspective view showing the main part of the ink jet printer 10 of the present embodiment, as viewed from the ink ejection surface 21 side.
3 is an enlarged perspective view showing the head module 30 and the guide panel 40 of the inkjet printer 10 shown in FIG.
As shown in FIGS. 2 and 3, the line head 20 is composed of a plurality of linear head modules 30. Then, in the longitudinal direction of the head module 30, one color is printed while covering the length of the maximum recordable recording paper (for example, the width of A4).

  The head module 30 is provided with four lines parallel to the longitudinal direction (paper width direction). That is, four lines of head modules 30 that eject ink of four colors of yellow (Y), magenta (M), cyan (C), and black (K) are arranged in alignment. Then, a full color image is formed by these four lines.

  Furthermore, each head module 30 includes a plurality of head chips 31. That is, in each head module 30, a total of eight head chips 31 are arranged in a 4 × 2 array in a staggered manner. In each head chip 31, nozzles 32 (see FIG. 3) for ejecting ink are arranged in one direction to constitute a nozzle row 32a (see FIG. 3). Therefore, the nozzle rows 32a are arranged not only in parallel in two staggered rows for each head module 30, but also in the entire line head 20 in parallel in eight rows. In addition, the mutual intervals of the nozzles 32 are all equal, including portions adjacent in a staggered pattern.

  Each such head module 30 is inserted into the guide panel 40 during printing. That is, as shown in FIG. 3, the head module 30 has a discharge block 33 protruding in an island shape, and the head chip 31 in which the nozzle row 32 a is formed is provided on the front end surface of the discharge block 33. ing. The leading end surface is an ink discharge surface 21.

  On the other hand, the guide panel 40 is a frame having a guide rib 41 having an inclined surface 41 a and an opening 42. And the discharge block 33 with the nozzle row 32a and the opening 42 correspond. In other words, the openings 42 are formed in a portion facing the nozzle row 32 a, can be inserted through the discharge block 33, and are arranged in a staggered manner so as to match the discharge block 33.

  Here, when the line head 20 is in the printing position (the position shown in FIG. 1), the ejection block 33 of the head module 30 is inserted into the opening 42 of the guide panel 40, and the nozzle row 32 a is positioned in the opening 42. To do. For this reason, the head chip 31 in which the nozzle row 32a is formed is exposed from the guide panel 40 in an island shape as shown in FIG. The exposed state of the head chip 31 depends on the mutual relationship with the opening 42 (see FIG. 3), but the head chip adjacent to the ink mist and the ink reservoir adhering to the ink ejection surface 21 by being exposed in an island shape. It is possible to prevent the color mixture from entering the nozzle row 32a (see FIG. 3) of the 31 nozzles.

  Further, the guide rib 41 is arranged around each head chip 31. The ink ejection surface 21 that is the surface of the head chip 31 is retracted from the guide rib 41 even at the printing position (the position shown in FIG. 1) where each head module 30 is inserted into the guide panel 40. Therefore, the guide rib 41 protrudes regularly around each head chip 31.

  4 and 5 are schematic views showing a state during printing by the ink jet printer 10 of the present embodiment. 4 shows a case where the leading edge of the recording paper 11 which is roll paper is warped upward, and FIG. 5 shows a case where the intermediate portion of the recording paper 11 which is roll paper is raised by curling. .

  As shown in FIGS. 4 and 5, the guide panel 40 is disposed so as to face the printing table 13. In other words, the guide panel 40 is fixedly disposed so that the conveyance path of the recording paper 11 is formed between the guide rib 41 of the guide panel 40 and the printing table 13, and the guide rib 41 faces the printing table 13. It protrudes.

  Further, the guide panel 40 is disposed independently of the line head 20 on the ink ejection surface 21 side of the line head 20. Then, at the printing position where the line head 20 is lowered to form an image on the recording paper 11 (the position shown in FIGS. 4 and 5), the head module 30 is inserted into the opening 42, and the ink ejection surface 21 is moved. It is exposed on the printing table 13 side. The ink discharge surface 21 is positioned so as not to protrude from the guide rib 41 and to be directly above the recording paper 11.

  Here, the recording paper 11 conveyed from the paper supply unit (not shown) is supplied onto the printing table 13 by the paper supply roller 12 and is supported substantially horizontally. Further, immediately below the line head 20, the recording paper 11 is conveyed at a constant speed without stopping, and ink is continuously ejected from each head module 30 so as to synchronize with the conveyance speed, and printing is executed.

  During printing of the recording paper 11, the guide panel 40 serves as a guide when the recording paper 11 moves in a direction parallel to the ink ejection surface 21. The guide rib 41 regulates the gap between the recording paper 11 and the ink ejection surface 21 in the conveyance path of the recording paper 11 within a predetermined range. The guide rib 41 separates the recording paper 11 from the ink ejection surface 21 so that the recording paper 11 does not contact the ink ejection surface 21, but the separation distance from the ink ejection surface 21 increases as the recording paper 11 moves. As described above, an inclined surface 41a for guiding the recording paper 11 is provided.

  Therefore, as shown in FIG. 4, when the recording paper 11 with the curled leading edge is fed toward the printing table 13, the leading edge warped comes into contact with the inclined surface 41a. . As the recording paper 11 moves, the leading edge slides on the inclined surface 41 a and is guided to a narrow conveyance path between the guide rib 41 and the printing table 13. For this reason, even when the recording paper 11 with the leading edge warped upward is supplied, a head gap appropriate for ink ejection is maintained immediately below the ink ejection surface 21, and the recording paper 11 has an accurate position and size. Ink can be landed.

  Further, since all the guide ribs 41 are formed with the gently inclined surface 41a on the front side in the conveyance direction of the recording paper 11, the leading edge of the recording paper 11 with respect to each head module 30 is prevented. As a result, it is possible to prevent the recording paper 11 from jamming, fouling, damage to the ink ejection surface 21, and the like. Even if a jam occurs, the ink discharge surface 21 is protected by the guide rib 41, so that the ink discharge surface 21 is prevented from being damaged.

  On the other hand, as shown in FIG. 5, even when the intermediate portion of the recording paper 11 is fed in a state of being raised by curling, the lifting amount can be regulated within a predetermined range by the guide rib 41. Therefore, the floating of the recording paper 11 is reduced, and the recording paper 11 is conveyed in a substantially flat state. As a result, at least the minimum head gap from the top (flat portion) of the guide rib 41 to the ink ejection surface 21 is maintained, so that ink can be landed on the recording paper 11 at an accurate position and size.

  In addition, since all the guide ribs 41 are formed with the gently inclined surface 41a on the front side in the conveyance direction of the recording paper 11, the lifting of the recording paper 11 is smoothly reduced. Therefore, conveyance of the recording paper 11 at a constant speed is maintained, and troubles such as contamination of the recording paper 11 can be prevented. In the case of the ideal recording paper 11 without curling, the guide panel 40 does not function (it is not necessary to function) because it does not float.

FIG. 6 is a schematic diagram showing the overall configuration of the inkjet printer 10 of the present embodiment, and shows a state during capping.
As shown in FIG. 6, the inkjet printer 10 according to the present embodiment is configured so that the line head 20 can be moved to the raised position during standby, and the ink ejection surface 21 can be capped by the head cap unit 50.

  The head cap unit 50 is normally located at a retracted position (see FIG. 1) away from the line head 20, and moves horizontally with an exclusive relationship with the up and down movement of the line head 20. Further, the line head 20 is independent of the guide panel 40, and only the line head 20 moves up and down. Therefore, when the line head 20 rises and the nozzle row 32a (see FIG. 3) is displaced outside the opening 42, a space is generated above the guide panel 40. Then, the head cap unit 50 that has been in the retracted position (see FIG. 1) moves to the space between the line head 20 and the guide panel 40. Then, each head module 30 and each head cap 53 face each other.

  Each head cap 53 is formed from a soft rubber material, and in particular, the outer peripheral edge of the tip is formed in a thin lip shape. And it arrange | positions in zigzag form according to the discharge block 33 (refer FIG. 3) of each head module 30. FIG. Further, the ink discharge surface 21 of each head module 30 is separated from the guide panel 40 and exposed as a flat surface. Therefore, the periphery of the nozzle row 32a (see FIG. 3) can be closed while the sealing performance is secured by the head cap 53 coming into contact with the ink ejection surface 21. That is, when the line head 20 is lifted away from the guide panel 40, the ink discharge surface 21 with the nozzle row 32a (see FIG. 3) is displaced outside the opening 42, so that the guide rib 41 becomes an obstacle during capping. Therefore, the sealing property can be maintained.

  As described above, the ink-jet printer 10 according to the present embodiment performs capping by bringing the head cap 53 into contact with the ink ejection surface 21, but the guide panel 40 does not hinder the capping. Further, the guide panel 40 does not adversely affect the cleaning of the ink discharge surface 21.

FIG. 7 is a schematic diagram showing the overall configuration of the inkjet printer 10 of the present embodiment, and shows a state during cleaning.
As shown in FIG. 7, the ink jet printer 10 according to the present embodiment can move the line head 20 to the raised position during standby and clean the ink discharge surface 21 by the cleaning unit 60.

  The cleaning unit 60 is normally in a retracted position away from the line head 20 and moves horizontally with an exclusive relationship with the up-and-down movement of the line head 20. Therefore, when the line head 20 is raised and the nozzle row 32a (see FIG. 3) is displaced outside the opening 42, the cleaning unit 60 that has been in the retracted position until then is placed in the space between the line head 20 and the guide panel 40. enter.

  Here, the cleaning unit 60 includes a blade 61 (corresponding to the cleaning member in the present invention) formed of a soft rubber material. Therefore, when the cleaning unit 60 moves horizontally so as to enter the space below the line head 20, the blade 61 moves while contacting the ink ejection surface 21. Since the ink discharge surface 21 is separated from the guide panel 40 and exposed as a flat surface, the ink discharge surface 21 can be cleaned without the guide rib 41 becoming an obstacle.

  As described above, according to the ink jet printer 10 of the present embodiment, even if the recording paper 11 is curled due to the guide panel 40 and the recording paper 11 is curled, the lift is reduced and appropriate. It is possible to guide the recording paper 11 while maintaining a proper head gap. Therefore, it is possible to prevent the recording paper 11 from jamming or fouling due to the recording paper 11 coming into contact with the ink ejection surface 21, damage to the ink ejection surface 21, or the like.

  In addition, since ink can be landed on the fed recording paper 11 at an accurate position and size, a high-quality printing result can be obtained. Furthermore, since the line head 20 (head module 30) is separated from the guide panel 40 in accordance with a maintenance operation such as capping or cleaning, the guide panel 40 does not become an obstacle to the maintenance operation. That is, it is possible to achieve both the guide function of the recording paper 11 and the maintenance function of the ink discharge surface 21.

Further, the present invention is not limited to the above-described embodiment, and various modifications as described below are possible. That is,
(1) Although the present embodiment uses the line-type inkjet printer 10 including the line head 20, the present invention is not limited to this, and can also be applied to a serial-type printer that performs printing by moving the head in the width direction of the recording paper. . Further, it can be applied to a copying machine, a facsimile, etc. in addition to a printer. In the case of a serial type printer, the guide member is also moved together with the head.

  (2) In this embodiment, the capping operation or the cleaning operation is performed as the maintenance of the ink ejection surface 21, but the ejection recovery operation by ink suction or the like can also be performed. The guide panel 40 does not become an obstacle when sucking ink or the like.

1 is a schematic diagram illustrating an overall configuration of an ink jet printer according to an embodiment, and illustrates a state during printing. FIG. FIG. 2 is a perspective view illustrating a main part of the ink jet printer according to the present embodiment, as viewed from the ink ejection surface side. It is a perspective view which expands and shows the head module and guide panel of the inkjet printer shown in FIG. FIG. 4 is a schematic diagram illustrating a state at the time of printing by the ink jet printer according to the embodiment, and illustrates a case where the leading edge of the recording sheet is warped upward. FIG. 5 is a schematic diagram illustrating a state at the time of printing by the ink jet printer according to the embodiment, and illustrates a case where an intermediate portion of the recording paper is lifted by curling. It is a schematic diagram which shows the whole structure of the inkjet printer of this embodiment, and shows the state at the time of capping. It is a schematic diagram which shows the whole structure of the inkjet printer of this embodiment, and shows the state at the time of cleaning. It is a schematic diagram which shows the state at the time of the printing by the conventional inkjet printer.

Explanation of symbols

10 Inkjet printer (liquid ejection device)
11 Recording paper (ejection target)
20 line head (liquid discharge head)
21 Ink ejection surface (liquid ejection surface)
32 nozzles 32a nozzle row 40 guide panel (guide member)
41 Guide rib (protrusion)
41a Inclined surface 42 Opening 53 Head cap (cap member)
61 Blade (cleaning member)

Claims (4)

A plurality of nozzles for discharging liquid;
A liquid ejection head in which a nozzle row in which the nozzles are arranged in one direction is formed;
A guide member that is disposed independently of the liquid discharge head on the liquid discharge surface side of the liquid discharge head and serves as a guide when a discharge target that is a liquid discharge target moves in a direction parallel to the liquid discharge surface; With
The guide member is
A protrusion for separating the discharge object from the liquid discharge surface so that the discharge object does not contact the liquid discharge surface;
A liquid ejection apparatus comprising: an opening formed in a portion facing the nozzle row. The liquid ejection apparatus according to claim 1,
The liquid ejecting apparatus, wherein the protrusion has an inclined surface for guiding the ejection target such that a separation distance from the liquid ejection surface increases as the ejection target moves. The liquid ejection apparatus according to claim 1,
The liquid ejection head is displaceable between a position where the nozzle row is inside the opening and a position outside the opening,
A cap capable of closing the periphery of the nozzle row by contacting the liquid ejection surface when the nozzle row is outside the opening, and opening the nozzle row by separating from the liquid ejection surface A liquid ejection device comprising a member. The liquid ejection apparatus according to claim 1,
The liquid ejection head is displaceable between a position where the nozzle row is inside the opening and a position outside the opening,
A liquid ejection apparatus comprising: a cleaning member capable of cleaning the liquid ejection surface by moving while contacting the liquid ejection surface when the nozzle row is outside the opening.

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