JP2004262108A - Inkjet recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inkjet recorder in which a recording head can be maintained stably regardless of the size thereof. <P>SOLUTION: The inkjet recorder comprises a line-type recording head having a nozzle face being arranged with nozzles, a platen for supporting a recording medium to face the nozzle face, a maintenance unit for the nozzle face, and a controller for controlling the recording head and the maintenance unit. The maintenance unit comprises a member for removing ink adhering to the nozzle face, and a maintenance moving mechanism for moving the ink removing member relatively to the recording head along the arranging direction of nozzles while abutting against the nozzle face. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an ink jet recording apparatus, and more particularly to an ink jet recording apparatus to which a line type recording head is applied.
[0002]
[Prior art]
2. Description of the Related Art In general, ink jet recording apparatuses are used in many cases because of relatively low noise during printing and good printing quality. Ink jet recording apparatuses include, for example, a line head type that has a fixed recording head having a nozzle array over the entire width of a recording medium and forms an image while conveying the recording medium in a direction perpendicular to the width direction. There are things.
[0003]
In such an ink jet recording apparatus, a nozzle for discharging ink onto a recording medium is provided on one surface (nozzle surface) of the recording head. However, the nozzle is clogged due to sticking of the ink and an ink supply path communicating with the nozzle. Since a problem such as clogging due to air bubbles or dust generated inside may occur, maintenance work of the recording head is performed at a predetermined timing.
As maintenance work, the nozzle surface of the recording head is covered with a cap member so as to be hermetically sealed, and air bubbles remaining in the nozzle and dust attached to the nozzle surface are sucked by a suction pump through the cap member. There is a work of sucking and removing the ink together with the ink, a work of wiping the ink remaining on the nozzle surface with an elastic blade or the like, and a work of preliminary discharging the ink. In order to perform these maintenance operations, the inkjet recording apparatus is provided with a maintenance unit.
[0004]
For example, in the case of a maintenance unit for sucking and removing ink, a cap member covering the nozzle surface of the recording head is provided over the entire width of the nozzle surface, and the ink is covered in a state where the nozzle surface is covered by the cap member. Suction and preliminary discharge are performed (for example, see Patent Document 1). On the other hand, even in the case of a maintenance unit for wiping ink, a blade for rubbing the nozzle surface and an ink tray for receiving ink ejected by preliminary ejection are provided over the entire width of the nozzle surface, and the nozzle surface is slid by the blade. After the rubbing and wiping of the ink, the preliminary ejection is performed by the ink tray facing the nozzle surface.
[0005]
Conventionally, in a line head type ink jet recording apparatus, the width of a recording medium used is as large as about 150 mm, so that the total width of the nozzle surface of the recording head is also set at about 150 mm. With a width of about 150 mm, even if cap members, blades, ink trays, and the like are provided over the entire width of the nozzle surface, it is relatively easy to form these members with high accuracy, and the maintenance operation can be performed stably. Has been done.
[0006]
[Patent Document 1]
Japanese Patent No. 3352803
[Problems to be solved by the invention]
However, in recent years, a line head type ink jet recording apparatus has been developed which can form an image on a large-sized recording medium having a width of 150 mm or more, and accordingly, the overall width of the recording head becomes large. In other words, the cap member, the blade, and the ink tray must also be formed so as to correspond to the entire width of the recording head. However, the larger the size, the more difficult it is to form with high accuracy, and the stable the maintenance operation.
[0008]
An object of the present invention is to provide an ink jet recording apparatus capable of performing stable maintenance of a recording head regardless of the size of the recording head.
[0009]
[Means for Solving the Problems]
The ink jet recording apparatus according to the first aspect of the present invention,
A line-type recording head having a plurality of nozzles for ejecting ink toward a recording medium and a nozzle surface on which the nozzles are arranged,
A platen that supports the recording medium so as to face the nozzle surface;
A maintenance unit for maintaining the nozzle surface,
A control device for controlling the recording head and the maintenance unit,
The maintenance unit includes:
An ink removing member for removing ink attached to the nozzle surface,
A maintenance movement mechanism that moves the ink removing member relative to the recording head so as to be in contact with the nozzle surface and along the direction in which the nozzles are arranged.
[0010]
According to the first aspect of the present invention, the maintenance removing mechanism moves the ink removing member along the nozzle arrangement direction while contacting the nozzle surface, so that the ink removing member is formed over the entire width of the recording head. Without this, maintenance can be performed on the entire nozzle surface. Therefore, the maintenance of the recording head can be stably performed regardless of the size of the recording head.
Since the ink removing member does not need to be formed over the entire width of the recording head, the maintenance unit can be reduced in size, and the overall size of the inkjet recording apparatus can be reduced.
[0011]
According to a second aspect of the present invention, in the inkjet recording apparatus according to the first aspect,
The maintenance unit includes:
An ink receiving tray that receives ink preliminarily ejected from the recording head is disposed on the downstream side in the movement direction of the ink removing member,
The maintenance moving mechanism moves the ink tray so as to follow the ink removing member,
The control device is characterized in that ink is preliminarily ejected from the nozzle facing the ink receiving tray.
[0012]
According to the second aspect of the present invention, since the ink tray follows the ink removing member, the ink can be removed and the preliminary ejection can be performed by a single movement. Therefore, the time required for maintenance can be reduced.
[0013]
According to a third aspect of the present invention, in the inkjet recording apparatus according to the first or second aspect,
It is characterized in that a separation mechanism is provided for relatively separating the platen and the nozzle surface during maintenance.
[0014]
According to the third aspect of the present invention, since the separating mechanism relatively separates the platen and the nozzle surface, a space necessary for the movement of the ink removing member can be secured.
[0015]
According to a fourth aspect of the present invention, in the inkjet recording apparatus according to the third aspect,
The separation mechanism moves the recording head such that the nozzle surface is separated from the platen.
[0016]
According to the fourth aspect, the same operation and effect as those of the third aspect can be obtained.
[0017]
According to a fifth aspect of the present invention, in the ink jet recording apparatus according to the third aspect,
The separation mechanism moves the platen so as to be separated from the nozzle surface.
[0018]
According to the fifth aspect of the invention, the same operation and effect as those of the third aspect of the invention can be obtained.
[0019]
The invention according to claim 6 is the inkjet recording apparatus according to any one of claims 1 to 5,
The ink removing member is an ink absorber having absorptivity.
[0020]
According to the sixth aspect of the present invention, since the ink removing member is an ink absorber having absorptivity, it can be removed by absorbing the ink attached to the nozzle surface.
[0021]
According to a seventh aspect of the present invention, in the inkjet recording apparatus according to any one of the first to fifth aspects,
The ink removing member is a blade having elasticity.
[0022]
According to the seventh aspect of the present invention, since the ink removing member is a blade having elasticity, the ink attached to the nozzle surface can be removed by wiping.
[0023]
The invention according to claim 8 is an ink jet recording apparatus according to any one of claims 1 to 7,
A relative moving speed between the ink removing member and the nozzle surface is set to be 0.1 cm / s or more and 100 cm / s or less.
[0024]
Here, regardless of whether the ink removing member is a blade or an ink absorber, if the relative moving speed between the ink removing member and the nozzle surface is higher than 100 cm / s, there is a possibility that ink will remain on the nozzle surface. high. If the moving speed is less than 0.1 cm / s, the time required for maintenance will be long. For this reason, by setting the relative moving speed between the ink removing member and the nozzle surface to be 0.1 cm / s or more and 100 cm / s or less as in the invention according to the eighth aspect, it is possible to stabilize in a short time. Maintenance can be performed.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic configuration diagram of an inkjet recording apparatus 1 according to the present embodiment.
[0026]
As the ink jet recording apparatus 1 of the present embodiment, for example, an ink jet recording apparatus that forms an image by discharging a photo-curable ink onto a recording medium P will be described as an example. The present invention is also applicable to an ink jet recording apparatus that discharges ink. The photocurable inks are roughly classified into radical polymerizable inks containing a radical polymerizable compound and cationic polymerizable inks containing a cationic polymerizable compound as polymerizable compounds. And a hybrid type ink in which a radical polymerization type ink and a cationic polymerization type ink are combined may be used as the ink used in the present embodiment. In the present embodiment, a cationic polymerization type ink is used among the photocurable inks.
[0027]
The cationic polymerization ink used in the present embodiment is specifically a mixture containing at least a cationic polymerizable compound such as an oxetane compound, an epoxy compound, and a vinyl ether compound, a photocationic initiator, and a coloring material. Of course, it has the property of being cured by irradiation with ultraviolet light.
[0028]
As shown in FIG. 1, the ink jet recording apparatus 1 is provided with a platen 2 that can move up and down to support the recording medium P from below. A transport device 3 such as a roller for transporting the recording medium P is disposed upstream and downstream in the transport direction A of the platen 2 so as to sandwich the platen 2. Above the platen 2, a line type recording head 4 for each color (Y: yellow, M: magenta, C: cyan, K: black) extending over the entire width of the recording medium P is moved in the transport direction A. They are arranged at predetermined intervals.
[0029]
The recording head 4 is mounted such that the recording medium P supported by the platen 2 and the nozzle surface 41 (see FIG. 2) face each other. A plurality of nozzles (not shown) for ejecting ink are linearly arranged on the nozzle surface 41 of the recording head 4 along a direction orthogonal to the transport direction A. An irradiation device 5 that irradiates the recording medium P with ultraviolet rays in order to cure the ink that has landed on the recording medium P is provided downstream of each recording head 4.
[0030]
The inkjet recording apparatus 1 is provided with a plurality of maintenance units 6 for maintaining the nozzle surface 41 of the recording head 4, which can be moved up and down in accordance with each recording head 4. Hereinafter, the maintenance unit 6 will be described with reference to FIGS. FIG. 2 is a side view illustrating a schematic configuration of the maintenance unit 6, and FIG. 3 is a perspective view of a main body 61 provided in the maintenance unit 6.
[0031]
As shown in FIGS. 1 and 3, the maintenance unit 6 is provided with a main body 61 that removes ink attached to the nozzle surface 41 and receives ink ejected by preliminary ejection after ink removal.
The main body 61 is provided with a roller-shaped ink absorber 611 having ink absorbency and elasticity, which is rotatable. On the surface of the ink absorber 611, an absorbent sheet (not shown) formed of ultrafine fibers having a fineness of about 0.1 denier and a thickness of about 1 to 5 μm is adhered to the entire surface. The ultrafine fibers are formed of polyester, acrylic, nylon, or the like so as to have a substantially circular cross-sectional shape. Since the surface of the ink absorber 611 is made of ultrafine fibers, the contact area with the ink is larger than that of the porous absorber. Therefore, compared to the case where the porous absorber absorbs the ink, the ink on the nozzle surface 41 can be quickly absorbed regardless of the viscosity of the ink. That is, even if the photocurable ink has a higher viscosity than the oil-based or water-based ink, the ink on the nozzle surface 41 can be reliably absorbed. In the case of an ink jet recording apparatus using oil or water based ink, even if the ink absorber 611 is formed by a porous absorber such as a sponge, the ink on the nozzle surface 41 can be quickly absorbed. it can.
[0032]
Further, on one side of the ink absorber 611 in the main body 61, an ink tray 612 for receiving ink ejected by preliminary ejection is provided along the axial direction of the ink absorber 611.
[0033]
As shown in FIGS. 1 and 2, the maintenance unit 6 is provided with a maintenance moving mechanism 62 that moves the main body 61 relatively to the recording head 4 so as to be along the nozzle arrangement direction. I have. The maintenance moving mechanism 62 includes a guide rail 63 that extends parallel to the entire width of the recording head 4 on the upstream side in the transport direction A of the recording head 4 and reciprocates the main body 61 along the nozzle arrangement direction. A drive motor 64 (see FIG. 4) serving as a drive source of the main body 61 is provided. Here, since the preliminary ejection must be performed after the ink is removed from the nozzle surface 41, the main body 61 is guided by the guide so that the ink receiving tray 612 is arranged on the downstream side in the moving direction of the ink absorber 611. It is supported on a rail 63.
[0034]
Next, the main control device of the inkjet recording apparatus 1 will be described with reference to FIG. FIG. 4 is a block diagram illustrating a main control device of the inkjet recording apparatus 1.
[0035]
As shown in FIG. 4, the inkjet recording apparatus 1 is provided with a control device 10 for controlling each drive unit. The control device 10 includes an input unit 11 to which an instruction at the time of image formation is input, a lifting mechanism 7 for raising and lowering the platen 2 and the maintenance unit 6, a storage unit 12, a transport device 3, a recording head 4, an irradiation device 5, a drive motor. 64 are electrically connected. In addition, other than these, each drive unit of the inkjet recording apparatus 1 is connected to the control device 10.
[0036]
The control device 10 controls various devices in accordance with a control program and control data written in the storage unit 12 based on an instruction from the input unit 11.
[0037]
Next, the operation of the inkjet recording apparatus 1 according to the present embodiment will be described.
The control device 10 controls the entire operation of the ink jet recording apparatus 1. Here, the maintenance control at the time of maintenance of the recording head 4 will be described.
[0038]
At the maintenance start timing, the control device 10 controls the transport device 3 to retract the recording medium P from the platen 2. Then, the control device 10 controls the lifting mechanism 7 to lower the platen 2 and the maintenance unit 6 from the image forming position shown in FIG. 2A to the maintenance position shown in FIG. 2B. Here, as shown in FIG. 2A, the main body 61 of the maintenance unit 6 is disposed above the nozzle surface 41 of the recording head 4 so that the maintenance unit 6 performs the image forming operation. This is a position that does not interfere, and furthermore, a position where the platen 2 and the nozzle surface 41 are spaced apart from each other by a suitable distance for image formation. On the other hand, the maintenance position is, as shown in FIG. 2B, a position where the ink absorber 611 of the maintenance unit 6 can come into contact with the nozzle surface 41, and the platen 2 and the nozzle surface 41 are required for the maintenance operation. It is a position with an interval.
[0039]
When the platen 2 and the maintenance unit 6 move to the maintenance position, the control device 10 controls the drive motor 64 to move the main body 61 forward along the guide rail 63. At this time, if the moving speed is higher than 100 cm / s, there is a high possibility that the ink remains on the nozzle surface 41. If the moving speed is less than 0.1 cm / s, the time required for maintenance will be long. Therefore, the relative moving speed between the ink absorber 611 and the nozzle surface 41 is set to be 0.1 cm / s or more and 100 cm / s or less.
[0040]
During this forward movement, the ink absorber 611 comes into contact with the nozzle surface 41 to absorb and remove the ink attached to the nozzle surface 41. Further, the control device 10 controls the recording head 4 to eject ink from the nozzle facing the ink receiving tray 612 in accordance with the above-described forward movement, thereby performing preliminary ejection. In this manner, since the ink receiving tray 612 follows the ink absorber 611, the ink can be removed from the nozzle surface 41 and the preliminary ejection can be performed by one forward movement, and the maintenance time can be reduced.
[0041]
Then, when the main body 61 moves from one end to the other end of the recording head 4 and maintenance of the entire nozzle surface 41 is completed, the control device 10 controls the elevating mechanism 7 to move the platen 2 and the maintenance unit 6 to each other. It is lowered to the return position shown in FIG. Thereafter, the control device 10 controls the drive motor 64 to move the main body 61 backward. Here, the return position is a position where the ink absorber 611 of the maintenance unit 6 is separated from the nozzle surface 41 as shown in FIG. As described above, since the ink absorber 611 and the nozzle surface 41 are separated from each other, it is possible to prevent the ink absorber 611 from contacting the nozzle surface 41 when the main body 61 is moved back along the guide rail 63. Can be prevented.
[0042]
When the main body 61 moves to the base end of the guide rail 63, the control device 10 controls the elevating mechanism 7 to raise the platen 2 and the maintenance unit 6 to the image forming position shown in FIG. Then, the maintenance operation is completed.
[0043]
As described above, according to the inkjet recording apparatus 1 of the present embodiment, the maintenance moving mechanism 62 moves the ink absorber 611 along the nozzle arrangement direction while contacting the nozzle surface 412. The maintenance can be performed on the entire surface of the nozzle surface 41 without setting the 611 over the entire width of the recording head 4. Therefore, regardless of the size of the recording head 4, the maintenance of the recording head 4 can be stably performed.
Since the ink absorber 611 does not need to be provided over the entire width of the recording head 4, the maintenance unit 6 can be reduced in size, and the inkjet recording apparatus 1 as a whole can be reduced in size.
[0044]
It is needless to say that the present invention is not limited to the above embodiment, but can be appropriately changed. In the following description, the same components as those of the ink jet recording apparatus 1 according to the above embodiment will be denoted by the same reference numerals.
[0045]
For example, in the present embodiment, the roller-shaped ink absorber 611 is exemplified as the ink absorber, but any shape may be used as long as the ink on the nozzle surface 41 can be absorbed. Use of an ink absorber in the shape of a circle. When a sheet-shaped ink absorber is applied, for example, as shown in FIG. 5, a support member 614 that supports the sheet-shaped ink absorber 613 from below is arranged on the upstream side in the movement direction of the ink tray 612. ing. The support member 614 stably contacts the sheet-shaped ink absorber 613 with the nozzle surface 41 during maintenance.
[0046]
On the upstream side of the support member 614, a first roller 615 around which a sheet-shaped ink absorber 613 is wound is provided. A second roller 616 that winds the sheet-shaped ink absorber 613 from the first roller 615 via the support member 614 is provided downstream of the support member 614. The drive source of the second roller 616 is electrically connected to the control device 10, rotates under the control of the control device 10, and winds up the sheet-shaped ink absorber 613. The control device 10 drives the second roller 616 to perform the sheet-shaped ink absorption before the sheet-shaped ink absorber 613 located above the support member 614 becomes dirty due to the maintenance and the ink cannot be absorbed. The body 613 is wound up, and a clean portion of the sheet-shaped ink absorber 613 is arranged above the support member 614. This allows the ink to be absorbed by the nozzle surface 41 until the sheet-shaped ink absorber 613 wound around the first roller 615 disappears.
[0047]
Further, in the above embodiment, since the guide rail 63 extends in parallel with the recording head 4, the ink absorber 611 and the nozzle surface 41 are relatively positioned in the direction orthogonal to the width direction of the recording head 4. However, if the ink absorber 611 and the nozzle surface 41 are moved while being shifted in a direction orthogonal to the width direction, only a part of the ink absorber 611 will be displaced. It is possible to perform efficient maintenance by preventing the surface 41 from adhering. Specifically, as shown in FIGS. 6A, 6B, and 6C, if the ink absorber 611 is moved obliquely (arrow H in the figure) with respect to the width direction of the recording head 4, The ink on the nozzle surface 41 can be removed while the ink absorber 611 is shifted in a direction orthogonal to the width direction.
[0048]
Further, in the above-described embodiment, the ink absorber 611 has been described as an example of the ink removing member that removes the ink on the nozzle surface 41. However, if the ink removing member can remove the ink on the nozzle surface 41, Any other material may be used. For example, as shown in FIG. 7, a plate-like blade 8 having elasticity may be used. The blade 8 is provided upright on the main body 61A, and moves while the blade 8 is in contact with the nozzle surface 41, thereby wiping ink adhered to the nozzle surface 41. Since the blade 8 generally has no ink absorbency, it is preferable to provide an ink absorber on the blade 8 itself so that the wiped ink does not scatter around.
[0049]
Further, in the above-described embodiment, the configuration in which the line-type recording head 4 is provided to extend over the entire width of the recording medium P is exemplified. However, any inkjet recording apparatus to which the line-type recording head is applied is applicable. Even so, the configuration of the present invention can be applied. For example, as shown in FIG. 8, a plurality of recording heads 4A for each color may be arranged in a staggered manner over the entire width of the recording medium P. In such a case, the ink removing member 611a and the ink receiving tray 612 of the maintenance unit 6A Must be set to a size that can abut the nozzle surfaces of the recording heads 4A arranged in a staggered manner.
[0050]
In the above-described embodiment, the maintenance moving mechanism 62 moves the main body 61 along the guide rail 63 to move the main body 61 relative to the nozzle surface 41 to remove the ink. The maintenance may be performed by moving the main body part 61 and the nozzle surface 41 relatively by moving the main body part 4. For example, after the maintenance unit 6 and the recording head 4 are arranged at the maintenance position shown in FIG. 2B, the recording head 4 is moved along the nozzle arrangement direction with the maintenance unit 6 fixed at that position. If it is moved, the main body 61 and the nozzle surface 41 are relatively moved. During this movement, the ink removing member comes into contact with the nozzle surface 41, and the ink on the nozzle surface 41 is removed.
[0051]
Further, in the above embodiment, the lifting mechanism 7 that raises and lowers the platen 2 and the maintenance unit 6 is exemplified as a separation mechanism that relatively separates the platen 2 and the nozzle surface 41. Any space can be used as long as the space required for maintenance can be secured by separating the space. For example, a separation mechanism that moves the recording head 4 so as to be separated from the platen 2 can be used.
[0052]
【The invention's effect】
According to the first aspect of the present invention, maintenance can be performed on the entire nozzle surface without forming the ink removing member over the entire width of the recording head. Therefore, the maintenance of the recording head can be stably performed regardless of the size of the recording head.
Since the ink removing member does not need to be formed over the entire width of the recording head, the maintenance unit can be reduced in size, and the overall size of the inkjet recording apparatus can be reduced.
[0053]
According to the second aspect of the present invention, it is possible to perform the ink removal and the preliminary ejection in one movement. Therefore, the time required for maintenance can be reduced.
According to the third aspect of the present invention, a space necessary for the movement of the ink removing member can be secured.
According to the fourth aspect, the same operation and effect as those of the third aspect can be obtained.
According to the fifth aspect of the invention, the same operation and effect as those of the third aspect of the invention can be obtained.
[0054]
According to the sixth aspect of the present invention, since the ink removing member is a blade having elasticity, the ink attached to the nozzle surface can be removed by wiping.
According to the seventh aspect of the present invention, since the ink removing member is an ink absorber having absorptivity, it can be removed by absorbing the ink attached to the nozzle surface.
According to the eighth aspect of the present invention, since the relative moving speed between the ink removing member and the nozzle surface is set to 0.1 cm / s or more and 100 cm / s or less, stable maintenance is performed in a short time. be able to.
[Brief description of the drawings]
FIG. 1 is a top view illustrating a schematic configuration of an inkjet recording apparatus according to an embodiment.
FIG. 2 is a side view illustrating a schematic configuration of a maintenance unit provided in the inkjet recording apparatus of FIG.
FIG. 3 is a perspective view illustrating a main body provided in the maintenance unit of FIG. 2;
FIG. 4 is a block diagram illustrating a main control unit of the inkjet recording apparatus of FIG. 1;
FIG. 5 is a perspective view illustrating a modification of the main body of FIG.
FIG. 6 is an explanatory diagram illustrating an example of a deformation movement of the main body in FIG. 3;
FIG. 7 is a perspective view illustrating a modification of the main body of FIG.
FIG. 8 is a top view illustrating a modification of the ink jet recording apparatus of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ink jet recording apparatus 2 Platen 4 Recording head 6 Maintenance unit 7 Elevation mechanism (separation mechanism)
8 Blade 10 Control device 41 Nozzle surface 62 Maintenance moving mechanism 611 Ink absorber (ink removing member)
611a Ink removing member 612 Ink tray 613 Sheet-shaped ink absorber (ink absorber)

Claims (8)

A line-type recording head having a plurality of nozzles for ejecting ink toward a recording medium and a nozzle surface on which the nozzles are arranged,
A platen that supports the recording medium so as to face the nozzle surface;
A maintenance unit for maintaining the nozzle surface,
A control device for controlling the recording head and the maintenance unit,
The maintenance unit includes:
An ink removing member for removing ink attached to the nozzle surface,
An ink jet recording apparatus, comprising: a maintenance moving mechanism for moving the ink removing member relative to the recording head so as to be in contact with the nozzle surface and along the nozzle arrangement direction. The inkjet recording apparatus according to claim 1,
The maintenance unit includes:
An ink receiving tray that receives ink preliminarily ejected from the recording head is disposed on the downstream side in the movement direction of the ink removing member,
The maintenance moving mechanism moves the ink tray so as to follow the ink removing member,
The ink jet recording apparatus according to claim 1, wherein the control device preliminarily discharges ink from the nozzle facing the ink tray. The inkjet recording apparatus according to claim 1, wherein
An ink jet recording apparatus, comprising: a separation mechanism for relatively separating the platen and the nozzle surface during maintenance. The inkjet recording apparatus according to claim 3,
The inkjet recording apparatus according to claim 1, wherein the separation mechanism moves the recording head so that the nozzle surface is separated from the platen. The inkjet recording apparatus according to claim 3,
The ink jet recording apparatus according to claim 1, wherein the separating mechanism moves the platen so as to be separated from the nozzle surface. The inkjet recording apparatus according to any one of claims 1 to 5,
An ink jet recording apparatus according to claim 1, wherein said ink removing member is an ink absorber having absorbability. The inkjet recording apparatus according to any one of claims 1 to 5,
The ink jet recording apparatus according to claim 1, wherein the ink removing member is a blade having elasticity. The inkjet recording apparatus according to any one of claims 1 to 7,
The ink jet recording apparatus according to claim 1, wherein a relative moving speed between the ink removing member and the nozzle surface is set to be 0.1 cm / s or more and 100 cm / s or less.

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