JP2011121260A - Liquid jetting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid liquid dripping on a support member in a liquid jetting apparatus adapted to suck liquid from an injection nozzle using a cap provided in the support member. <P>SOLUTION: A medium support member includes a recess provided in a position to face the injection head, and a wiper member as well as a cap member are provided in the recess. At least one of the medium support member and the injection head is driven to allow the injection head and the cap member to abut each other, thus restraining thickening of the liquid. In this state, negative pressure is applied to the injection nozzle to suck the thickened liquid in the injection head. After the liquid is sucked, at least one of the medium support member and the injection head is moved to allow mutual sliding of the wiper member and the nozzle surface to thereby wipe off liquid sticking to the injection nozzle. In this manner, suction of liquid in the recess and wiping of the nozzle surface can be carried out to avoid liquid dripping on the medium support part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a technique for ejecting liquid from an ejection head.

A so-called inkjet printer can print a high-quality image by ejecting an accurate amount of ink to a precise position from a fine ejection nozzle. In addition, by utilizing this technique and ejecting various liquids instead of ink toward the substrate, it is also possible to manufacture electrodes, sensors, biochips, and the like.

In such a technique, while a medium is supported by a support member such as a platen, a liquid such as ink is ejected onto the medium using an ejection head having an ejection nozzle. Further, while the liquid is not ejected, the ejection nozzle is covered with a cap to prevent the liquid from being evaporated or evaporated to increase the viscosity of the liquid. If the properties are still deteriorated due to thickening of the liquid, etc., the nozzle with the properties deteriorated by operating the suction pump connected to the cap while the nozzle is covered with the cap. Sucking from.

In general, the cap is installed on the outside of a support member such as a platen alone, and the ejection head is moved to the position of the cap, or the cap is moved to the position of the ejection head to cap the cap. ing. Therefore, in order to reduce the size of the liquid ejecting apparatus or to simplify or omit the moving mechanism of the ejecting head or the cap, a portion facing the ejecting head of the platen is formed in a concave shape, and a cap is provided there. Technology has been proposed (Patent Document 1).

JP 2008-307862 A

However, the above-described prior art has a problem in that a liquid such as ink drips on a support member such as a platen and soils the support member. That is, when a liquid such as ink is sucked from the ejection nozzle while the ejection nozzle is covered with the cap, the liquid sucked into the cap rebounds and adheres to the ejection nozzle. In this state, when a liquid such as ink is ejected from the ejection nozzle toward the medium, the liquid adhering to the ejection nozzle drips onto the medium, so that the adhering liquid is wiped off at a position different from the cap. The ejection head is moved to the provided wiping mechanism. At this time, since the ejection head passes over a support member such as a platen, liquid such as ink drips from the ejection nozzle onto the support member.
There is a problem that the medium is soiled by supporting the medium with the dirty support member.

The present invention has been made to solve the above-described problems of the prior art,
An object of the present invention is to provide a technique capable of avoiding dripping of liquid on a support member in a liquid ejecting apparatus that sucks liquid from an ejection nozzle using a cap provided in the support member.

In order to solve at least a part of the problems described above, the liquid ejecting apparatus of the present invention employs the following configuration. That is,
A liquid ejecting apparatus that ejects liquid toward an ejection target medium from an ejection nozzle provided in an ejection head,
A medium support member that supports the ejection medium from the back side with respect to the ejection head;
A cap member that forms a closed space around the ejection nozzle by contacting the ejection head;
Drive means for abutting or separating the cap member and the ejection head from each other;
Liquid suction means for sucking liquid from the ejection nozzle by applying a negative pressure to the ejection nozzle in a state where the cap member is in contact with the ejection head;
A wiper member for wiping off the liquid adhering to the nozzle surface by sliding on the nozzle surface provided with the ejection nozzle of the ejection head;
A sliding means for sliding the wiper member and the nozzle surface against each other;
The medium support member is a member provided with a recess at a position facing the ejection head,
The cap member and the wiper member are members provided in the recess,
The drive means is means for bringing the cap member and the ejection head into contact with or apart from each other by driving at least one of the medium support member or the ejection head;
The gist is that the sliding means is means for sliding the wiper member and the nozzle surface relative to each other by moving at least one of the medium support member or the ejection head.

In such a liquid ejecting apparatus of the present invention, the liquid is ejected from the ejection nozzle provided in the ejection head toward the ejection target medium. Further, while the liquid is not ejected, the liquid in the ejection head is prevented from thickening by bringing the ejection head into contact with the cap member in the recess provided at a position facing the ejection head of the medium support member. To do. If the liquid still thickens, an operation (cleaning operation) of sucking the liquid by applying a negative pressure to the ejection nozzle while the cap member is in contact with the ejection head is performed. Furthermore, in addition to the cap member, a wiper member is also provided in the recess of the medium support member of the present invention, and at least one of the medium support member or the ejection head is moved to slide the wiper member and the nozzle surface relative to each other. By letting
It is also possible to perform an operation (wiping operation) of wiping off the liquid adhering to the ejection nozzle.

In this way, since the cleaning operation and the wiping operation can be performed in the recess of the medium support member, the liquid is dripped onto the medium support member by moving the ejection head with the liquid adhered to the ejection nozzle. There is no end. Further, since the wiping operation is performed in the concave portion of the medium support member, the liquid does not scatter onto the medium support member as long as the wiped liquid is slightly scattered from the wiper member. Therefore, it can be avoided that the liquid adheres to the medium support member and contaminates the ejection target medium. In addition, since the wiper member is provided in the medium support member, compared to the case where the wiping mechanism is provided outside the medium support member,
It is possible to reduce the size of the entire liquid ejecting apparatus.

Further, in the liquid ejecting apparatus of the present invention described above, the following may be performed. First, the ejection head is provided with a plurality of ejection nozzles in a row on the nozzle surface. Further, as the cap member, a plurality of cap members capable of forming a closed space around a predetermined number of ejection nozzles by being brought into contact with the ejection head are provided. Further, a wiper member is provided adjacent to each cap member in the direction in which the injection nozzles are arranged. The wiper member and the nozzle surface may be slid in the direction in which the spray nozzles are arranged to wipe the nozzle surface.

In this case, even if the liquid wiped off by the wiper member is scattered, the liquid is not scattered from both sides of the concave portion provided in the medium support member because the spray nozzles are scattered in the direction in which they are arranged. For this reason, it can be avoided that the scattered liquid adheres to the surface of the medium support member and the ejected medium becomes dirty. In addition, the area of the wiper member can be reduced compared to the case where the wiper member is provided adjacent to each cap member in the direction perpendicular to the direction in which the injection nozzles are arranged, so the overall size of the apparatus is suppressed. It is also possible to do.

Furthermore, in the above-described liquid ejecting apparatus of the present invention, a sealing surface that forms a closed space in the recess by contacting the ejecting head may be provided around the recess provided in the medium support member.

Thus, a closed space is formed by the nozzle surface of the ejection head and the recess of the medium support member. As a result, while the ejection head is in contact with the seal surface, it is possible to prevent the liquid attached to the wiper member from drying during the wiping operation. For this reason, by performing the wiping operation using the wiper member to which the liquid is fixed, there is no problem that the nozzle surface of the ejection head is damaged and the liquid ejection is hindered.

It is explanatory drawing which showed the rough structure of the fluid ejection apparatus of a present Example using a line printer as an example. It is explanatory drawing which shows a state when a head unit is seen from the bottom face side. It is the perspective view which showed the structure of the platen part. It is explanatory drawing which showed the capping operation | movement of the line printer. It is explanatory drawing which showed the wiping operation | movement of the line printer. It is explanatory drawing which showed the reason why ink does not scatter on the surface of a platen part at the time of wiping. It is explanatory drawing which showed the reason the drying of the ink adhering to a wiper was suppressed.

Hereinafter, in order to clarify the contents of the present invention described above, examples will be described in the following order.
A. Device configuration:
B. Platen structure:
C. Wiping operation:

A. Device configuration :
FIG. 1 is an explanatory diagram showing a rough structure of a fluid ejecting apparatus of the present embodiment using a line printer 1 as an example. As shown in the figure, the line printer 1 of the present embodiment has a roughly box-shaped outer shape, and the upper surface has a monitor panel 2, an operation panel 3 for user operation, and a line. A maintenance door 4 for performing various maintenance of the printer 1 is provided. In addition, a paper feed door 5 that is opened when loading printing paper is provided on the front surface of the line printer 1, and a paper discharge port 6 through which the printed printing paper is discharged is provided on the right side. Is provided.

Inside the line printer 1, a plurality of units or parts for executing various functions are mounted. First, a head unit 30 that ejects ink onto printing paper is provided at a substantially central position of the line printer 1, and a platen unit 40 that supports the printing paper is provided below the head unit 30. Below the platen unit 40, a suction pump 50 for sucking ink having deteriorated properties, a waste liquid tank 52 for storing ink sucked by the suction pump 50, and the like are provided.

On the paper surface of FIG. 1, a paper feed cassette 10 into which printing paper is loaded is provided at the lower left position of the head unit 30, and the paper feed roller 20 is located at a position in contact with the upper surface of the right end of the paper feed cassette 10. Is provided. Further, a paper feed motor 22 is connected to the back side of the paper feed roller 20, and when the paper feed motor 22 is driven to rotate the paper feed roller 20, printing sheets are fed one by one from the paper feed cassette 10. It is conveyed toward the head unit 30. In FIG. 1, the conveyance path of the printing paper is indicated by a thick broken line.

Further, a power supply unit 70 for supplying power to the line printer 1 is provided at a lower right position of the head unit 30 on the paper surface. Further, a control unit 80 for controlling various movements of the line printer 1 is mounted at a position immediately below a portion where the monitor panel 2 and the operation panel 3 are provided.

Next, the printing operation of the line printer 1 will be described with reference to FIG. First, a plurality of printing sheets are loaded in the sheet feeding cassette 10. The printing paper loaded in the paper feed cassette 10 is pushed up by a spring (not shown), and the paper feed roller 2 provided above.
It is pressed to 0. The paper feed roller 20 is an elongated member having a substantially semicircular cross section formed by dividing a metal elongated cylinder in half in the length direction, and the side surface corresponding to the circumferential portion is formed of a rubber material. A paper feed motor 22 is connected to one end of the paper feed roller 20, and by rotating the paper feed roller 20 by the paper feed motor 22, print sheets are fed one by one from the paper feed cassette 10 to the head unit 30. Send it out.

A plurality of guide rollers 26 are provided between the paper feed roller 20 and the head unit 30. The guide roller 26 is driven and rotated by a motor (not shown) to convey the printing paper to the head unit 30 while guiding the printing paper.

The head unit 30 is provided so as to straddle the printing paper on the printing paper conveyance path, and a plurality of inks are ejected to the bottom side of the head unit 30 (that is, the side facing the printing paper). Is provided (see FIG. 2). Head unit 3
An ink cartridge containing ink is mounted inside 0, and the ink contained in the ink cartridge is ejected from a plurality of ejection heads provided on the lower surface side of the head unit 30. In the line printer 1 of this embodiment, the type of ink to be mounted is 1
Although described as a type (black ink), in addition to black ink, a plurality of inks such as cyan ink, magenta ink, and yellow ink may be mounted.

FIG. 2 is an explanatory diagram showing a state when the head unit 30 is viewed from the bottom surface side (side facing the printing paper). As shown in the figure, six substantially rectangular ejection heads 32 are provided on the bottom surface of the head unit 30 of this embodiment. The six ejection heads 32 are arranged in two rows of three, and the ejection heads 32 in each row are arranged in a staggered manner. Further, each ejection head 32 is provided with a plurality of ejection nozzles that eject ink. The lower surface of the ejection head 32 provided with such ejection nozzles may be referred to as a “nozzle surface”.

Further, as shown in FIG. 1, a platen portion 40 is provided below the head unit 30 so as to face the bottom surface of the head unit 30. The printing paper conveyed by the paper feed roller 20 and the guide roller 26 is supplied onto the platen unit 40 and is conveyed on the platen unit 40 while being ejected on the bottom surface of the head unit 30.
Ink is ejected from the ink and an image is printed. The printing paper on which the image is printed in this manner is bent downward in the advancing direction by the guide roller 26 provided on the downstream side of the platen unit 40, and then passes through the lower side of the power supply unit 70 to the paper discharge port 6. From the printer to the outside of the line printer 1. Here, the platen unit 40 of the present embodiment has the following structure in order to prevent the ink in the ejection head 32 from being thickened when printing is not performed. Yes.

B. Platen structure:
FIG. 3 is a perspective view showing the structure of the platen portion 40 of this embodiment. The platen unit 40 of the present embodiment includes a portion that supports the printing paper during printing and a portion that prevents the ink from thickening when printing is not being performed. 3A shows a portion of the platen unit 40 that supports the printing paper, and FIG. 3B shows a portion of the platen unit 40 that prevents the ink from thickening.

As shown in FIG. 3A, a plurality of ribs 42 are provided on the upper surface of the platen unit 40 to smoothly feed the printing paper supplied to the platen unit 40 in the transport direction. Further, a groove is provided in the center of the upper surface of the platen portion 40 in a direction crossing the plurality of ribs 42, and a recess is formed in the central portion (position where the head unit 30 faces) of the groove. A portion for preventing the ink from thickening in the ejection head 32 is accommodated in the recess.

FIG. 3B shows in detail a portion for preventing ink thickening provided in the recess of the platen portion 40. As shown in the drawing, a plurality of caps 44 each having a substantially rectangular shape and having recesses formed therein are provided in the recesses of the platen portion 40. A thin plate-like wiper 46 is provided at a position adjacent to each cap 44 in the longitudinal direction. Although the wiper 46 of this embodiment is made of rubber, the material of the wiper 46 is not limited to rubber, and may be formed using a material such as a nonwoven fabric or a porous body.

The plurality of caps 44 described above are disposed in positions where the ejection heads 32 provided on the bottom surface of the head unit 30 face each other in the recesses of the platen unit 40. For this reason,
Similar to the ejection head 32, the caps 44 are also arranged in two rows of three in the recess of the platen unit 40, and the caps 44 in the rows are arranged alternately. The wiper 46 is arranged so that the surface of the wiper 46 and the short side of the cap 44 are parallel to each other. Furthermore, the caps 44 described above are connected to the suction pump 50 via passages.

Since the platen unit 40 of the present embodiment is configured as described above, the head unit 30 is lowered toward the concave portion of the platen unit 40 while printing is not being performed.
The surface of the ejection head 32 on which the ejection nozzle is provided (that is, the nozzle surface) can be covered with the cap 44. By doing so, it is possible to prevent the ink in the ejection head 32 from being thickened due to evaporation of the ink components from the ejection nozzles during printing.

Further, as described above, the caps 44 of the platen unit 40 are respectively connected to the suction pump 50.
(See FIG. 3B). Accordingly, even when the ink in the ejection head 32 has thickened due to being left without being printed for a long time, the suction pump 50 is operated with the cap 44 covering the nozzle surface. By doing so, it is possible to suck the thickened ink.

In addition, when the thickened ink is sucked while the nozzle surface is covered with the cap 44, the ink sucked into the cap 44 rebounds and adheres to the ejection nozzle. Therefore, the line printer 1 according to the present embodiment performs an operation (wiping operation) for wiping off ink adhering to the ejection nozzle as follows.

C. Wiping operation:
FIG. 4 is an explanatory diagram showing a capping operation performed by the line printer 1 prior to the wiping operation. FIG. 4A shows the position of the head unit 30 during printing.
4B shows the position of the head unit 30 when the nozzle surface of the ejection head 32 is capped.

In the line printer 1 according to the present embodiment, when printing is performed, the head unit 30 is disposed so that the nozzle surface of the ejection head 32 is slightly higher than the height of the rib 42 of the platen unit 40. Therefore, as shown in FIG. 4A, it is possible to print an image while feeding the printing paper in the conveyance direction through the gap between the head unit 30 and the platen unit 40. During printing, as shown in FIG. 4B, the head unit 30 is lowered by the drive mechanism 90 so that the bottom surface of the head unit 30 is brought into contact with the bottom surface of the groove provided on the top surface of the platen unit 40. Make contact. The ejection head 3 provided on the bottom surface of the head unit 30
2 is provided in a state slightly protruding from the bottom surface. When the bottom surface of the head unit 30 is brought into contact with the groove, the ejection head 32 has a recess (FIG. 3A) provided at the center of the groove. (See)).

Further, as described above, the cap 44 is provided in the concave portion of the platen portion 40 at a position facing the ejection head 32 provided on the bottom surface of the head unit 30 (FIG. 3B).
See). Further, the height of each cap 44 is a height that just contacts the nozzle surface of the ejection head 32 when the head unit 30 is lowered to the bottom of the groove of the platen portion 40. Therefore, as shown in FIG. 4B, when the bottom surface of the head unit 30 is brought into contact with the groove of the platen portion 40, the nozzle surfaces of the six ejection heads 32 provided on the bottom surface of the head unit 30 are capped. 44 (capping state).

When the capping operation is completed as described above, the suction pump 50 is operated as necessary to suck the thickened ink in the ejection head 32 (cleaning operation).
Execute. At this time, since the sucked ink repels and adheres to the ejection nozzle, an operation of wiping off the ink adhering to the ejection nozzle (wiping operation) is performed as follows.

FIG. 5 is an explanatory diagram showing a wiping operation of the line printer 1. When the above-described cleaning operation is completed, the head unit 30 is slightly lifted from the groove of the platen portion 40 by the drive mechanism 90 as shown in FIG. Subsequently, in this state, the platen unit 40 is slid to the front side of the line printer 1 by the sliding mechanism 92. As a result, as shown in FIG. 5B, the platen unit 40 can be slid to the near side without the ejection head 32 being caught.

Here, as described above, the wiper 46 is provided in the recess of the groove of the platen portion 40 in a state parallel to the short side of the cap 44 (see FIG. 3B). And wiper 46
The tip portion of the platen protrudes to a position slightly higher than the bottom surface of the groove of the platen portion 40. Therefore, as shown in FIG. 5B described above, when the platen unit 40 is slid toward the front side, the tip portion of each wiper 46 wipes the ink adhering to the ejection nozzle while contacting the nozzle surface of each ejection head 32. Take it. Further, the width of each wiper 46 depends on the ejection head 3.
It is wider than the short side of No. 2 so that no ink is left behind in the short side direction of the nozzle surface. As a result, the entire surface of the nozzle surface can be wiped while the tip of the wiper 46 moves from end to end in the long side direction of the nozzle surface.

After the ink adhering to the ejection nozzles is wiped off in this way, the head unit 30 is thereafter removed.
Is raised to a little above the rib 42 of the platen unit 40, and then the platen unit 40 is returned to the original position even if it is slid again to the back side of the line printer 1. Then, as shown in FIG. 4A, ink can be ejected onto the printing paper. When printing is not started immediately, the nozzle surface of the ejection head 32 is capped by lowering the head unit 30 as it is to the bottom of the groove of the platen unit 40 (see FIG. 4B).

As described above, in the line printer 1 of the present embodiment, the cleaning is performed by bringing the ejection head 32 into contact with the cap 44 provided in the recess of the platen unit 40, and then the wiper provided in the recess. 46 can be used to wipe the nozzle surface of the ejection head 32. In this way, the cleaning operation and the wiping operation can be completed in the recess, and the head unit 30 with the ink adhering to the ejection nozzle is moved over the platen unit 40 so that the ink is placed on the platen unit 40. There is no dripping. as a result,
By transporting the printing paper onto the platen unit 40 that is soiled with ink, it is possible to prevent the printing paper from being soiled. In addition, since the wiper 46 is provided inside the platen unit 40, it is not necessary to secure a space for providing the wiping mechanism outside the platen unit 40. Therefore, the entire apparatus of the line printer 1 can be reduced in size.

Further, in this embodiment, not only can the wiping operation be performed in the concave portion of the platen unit 40, but also the ink wiped off by the wiper 46 does not scatter on the surface of the platen unit 40 as shown below. It has become.

FIG. 6 is an explanatory diagram showing the reason why ink does not scatter on the surface of the platen unit 40 during the wiping operation. As described above, the wiper 46 of the present embodiment is disposed so that the short side of the cap 44 and the surface of the wiper 46 are parallel to each other. Therefore, when the wiping operation is executed, the wiper 46 performs an operation of bending from the back side of the platen unit 40 toward the front side (that is, toward the cap 44) as shown in FIG. As a result, the ink adhering to the wiper 46 scatters toward the cap 44. In other words, ink does not scatter toward both sides of the groove formed in the platen portion 40 (the portion where the rib 42 is formed). For this reason, the ink adhering to the wiper 46 is not scattered and the surface of the platen unit 40 is not stained with ink, so that the printing paper can be prevented from being stained.

Furthermore, in the line printer 1 of the present embodiment, when the above-described capping operation (see FIG. 4B) is performed, not only the viscosity increase of the ink in the ejection head 32 can be suppressed,
It is possible to prevent the ink attached to the wiper 46 from drying. Hereinafter, this point will be described.

FIG. 7 is an explanatory diagram showing the reason why the drying of the ink attached to the wiper 46 can be suppressed by the capping operation. FIG. 7A shows a state where the line printer 1 is capping. At this time, the bottom surface of the head unit 30 is in contact with the bottom surface of the groove of the platen portion 40. FIG. 7B shows the head unit 30 and the platen unit 40 when a cross section is taken in the longitudinal direction at a position substantially at the center of FIG. 7A (a position indicated by a one-dot chain line in the drawing). The inside of is shown. In the example shown in FIG. 7, the bottom surface of the groove of the platen portion 40 (the portion on which the head unit 30 contacts and slides) is covered with a rubber seal member 48.

As shown in FIG. 7A, when the bottom surface of the head unit 30 is lowered to the seal member 48 provided on the groove of the platen portion 40 in accordance with the capping operation, the outer edge portion of the bottom surface of the head unit 30 is obtained. Comes into contact with the rubber seal member 48. At this time, the platen section 40
7 (b), the nozzle surface of the ejection head 32 is in the cap 44, as shown in FIG.
The space surrounded by the bottom surface of the head unit 30 and the concave portion of the platen portion 40 is completely closed. As a result, since the wiper 46 is not exposed to the outside air during capping, it is possible to suppress drying of the ink attached to the wiper 46 during the wiping operation. For this reason, it is possible to prevent the nozzle surface of the ejection head 32 from being damaged by performing the wiping operation using the wiper 46 to which the dried ink is fixed.

As described above, the tip portion of the wiper 46 protrudes to a position slightly higher than the bottom surface of the groove of the platen portion 40, but the bottom surface of the head unit 30 has a retraction hole at a position facing the wiper 46. 49 is provided. Accordingly, as shown in FIG. 7B, even when the bottom surface of the head unit 30 is lowered to the bottom of the groove of the platen portion 40 and is in contact with the seal member 48, the tip of the wiper 46 is at the head unit. The bottom of 30 is not touched. If such a retraction hole 49 is provided, it is possible to prevent the bottom of the head unit 30 from being pressed against the tip of the wiper 46 for a long time during capping, so that it is possible to reduce the deterioration of the wiper 46. . Further, since the ink wiped off by the wiper 46 can be prevented from adhering to the bottom surface of the head unit 30, it is possible to prevent the ink adhering to the bottom surface of the head unit 30 from dripping on the printing paper during printing.

As mentioned above, although the Example of this invention was described, this invention is not limited above,
The present invention can be implemented in various modes without departing from the gist thereof.

For example, in the above-described embodiment, the platen portion, the cap, and the wiper are integrated.
It has been described that the wiping operation is performed by moving the entire platen. However, a unit including a cap and a wiper may be provided inside the platen unit, and the wiping operation may be performed by moving only this unit. In this way, the sliding mechanism of the platen part can be simplified as compared with the case where the entire platen part is moved.

In performing the wiping operation, the head unit may be moved without moving the platen unit. In this way, the sliding mechanism of the platen part can be omitted.

1 ... Line printer, 30 ... Head unit, 32 ... Ejecting head,
40 ... Platen part, 44 ... Cap, 46 ... Wiper,
48 ... Sealing member 49 ... Retraction hole 50 ... Suction pump,
90 ... Drive mechanism, 92 ... Sliding mechanism

Claims (3)

A liquid ejecting apparatus that ejects liquid toward an ejection target medium from an ejection nozzle provided in an ejection head,
A medium support member that supports the ejection medium from the back side with respect to the ejection head;
A cap member that forms a closed space around the ejection nozzle by contacting the ejection head;
Drive means for abutting or separating the cap member and the ejection head from each other;
Liquid suction means for sucking liquid from the ejection nozzle by applying a negative pressure to the ejection nozzle in a state where the cap member is in contact with the ejection head;
A wiper member for wiping off the liquid adhering to the nozzle surface by sliding on the nozzle surface provided with the ejection nozzle of the ejection head;
A sliding means for sliding the wiper member and the nozzle surface against each other;
The medium support member is a member provided with a recess at a position facing the ejection head,
The cap member and the wiper member are members provided in the recess,
The drive means is means for bringing the cap member and the ejection head into contact with or apart from each other by driving at least one of the medium support member or the ejection head;
The liquid ejecting apparatus, wherein the sliding means is means for sliding the wiper member and the nozzle surface relative to each other by moving at least one of the medium support member or the ejection head. The liquid ejecting apparatus according to claim 1,
The ejection head is an ejection head in which a plurality of the ejection nozzles are provided in a row on the nozzle surface,
The cap member is a member that is provided one by one for a predetermined number of ejection nozzles, and forms a closed space around the predetermined number of ejection nozzles when in contact with the ejection head;
The wiper member is a member provided adjacent to the cap member in a direction in which the spray nozzles are arranged,
The liquid ejecting apparatus, wherein the sliding means is means for sliding the wiper member and the nozzle surface relative to each other in a direction in which the ejection nozzles are arranged. The liquid ejecting apparatus according to claim 2, wherein a seal surface that forms a closed space in the recessed portion by contacting the ejecting head is provided around the recessed portion.

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